Top-rated anti-spam protection for WordPress. No CAPTCHA, no puzzles, and no visitor friction – just automatic spam blocking for forms, comments, registrations, subscriptions, and fake orders.
Anti-Spam features
Stops spam comments.
Stops spam registrations.
Stops spam contact emails.
Stops fake orders eCommerce sites and online stores.
Stops spam bookings.
Stops spam subscriptions.
Stops spam surveys, polls.
Stops spam in widgets.
Stops spam in WooCommerce.
Real-time email validation. Is email real or Not.
Checks and removes the existing spam comments and spam users.
Compatible with mobile users and devices.
Compatible with General Data Protection Regulation (GDPR) (EU).
Blocking disposable & temporary emails.
No Spam – No Google Penalties. Give your SEO boost.
Mobile friendly Anti Spam & FireWall.
Stops spam in Search Form.
Disable comments.
Spam FireWall, wich includes Anti-Crawler & Anti-Flood options.
Hide «Website» field for comments.
Block messages by languages, countries, networks and stop words.
Email Address Encoder – protection for email addresses published on your site.
It’s more than just a tool to combat spam; it’s an integral component that enhances the overall quality and performance of your website. techbusinessnews.com.au
Improve Your Security WordPress Spam Protection With CleanTalk Anti-Spam The Hacker News.
CleanTalk – Cloud-Based Anti-Spam Service to Keep Your Site Bot-Free. NewsWatch Review.
I know you have heard of a number of anti-spam plugins. But you must know, the cloud-based ones are the best regarding detection rate. They compare all the content in forms with their own algorithm to find out the legibility. www.techwibe.com
The key selling point of CleanTalk for me is not simply its effectiveness. It’s the fact that CleanTalk works in the background. It does not make users jump through hoops in order to submit a comment or complete a form. www.kevinmuldoon.com
AntiSpam protection for comments
Native spam protection for WordPress, JetPack comments and any other comment plugins. The plugin moves spam comments to SPAM folder or you can set the option to ban spam comments silently. You can also enable the option in the plugin settings to auto-delete comments from SPAM folder.
Plugin extends spam protection for Elementor Website Builder. It filters spam submisssions and tested for contact form type.
Gravity forms spam filter
Plugin extends spam protection for Gravity forms. It filters spam submisssions for any type of forms.
Formidable Form Builder spam filter
Plugin extends spam protection for Formidable Form Builder. It filters spam submisssions for any type of forms – Contact Form, Survey & Quiz Forms.
Leaky Paywall subscription protection
Plugin protects Leaky Paywall plugin (by ZEEN01) against spam subscriptions. It can be used with any other third-party spam filters.
HubSpot protection for embedded forms
Plugin protects HubSpot embedded forms against any spam submissions. Guide to start using embedded forms https://knowledge.hubspot.com/forms/how-can-i-share-a-hubspot-form-if-im-using-an-external-site
Contact Form by WPForms spam filter
Plugin extends Contact Form by WPForms to provide spam protection. It filters spam submissions for each type of forms – simple contact form, marketing form, request a quote and etc.
WooCommerce spam & fake orders filter
Anti-spam by CleanTalk filters spam registrations, spam reviews, and fake orders for WooCommerce (any eCommerce plugin as well). The plugin is fully compatible with WooCommerce 2.1+ and online stores.
Spam filter for theme contact forms
The plugin blocks spam emails via any theme (built-in ones included) contact forms. The plugin filters spam emails silently (without any error notices on WordPress frontend) in AJAX forms as well.
bbPress spam filter
Spam protection for everything about bbPress: logins, registrations, forums, topics and replies.
Many other great contact, signups and all kind of forms that supported by CleanTalk
Protection for forms above works as built-in function of Anti-Spam by CleanTalk, without any additional actions from a user. Anywaym, if you have missed spam, try to activate a few options below. If nothing helps, ask for help at support forum https://wordpress.org/support/plugin/cleantalk-spam-protect/
Any WordPress form (checkbox ‘Custom contact forms’).
Any submission to the site (checkbox ‘Check all POST data’).
With the help of anti-spam by CleanTalk you can inspect through existing comments to find and quickly delete spam comments at once. To use this function, go to WP Console -> Comments -> Find spam comments.
With the help of anti-spam by CleanTalk you can inspect through existing accounts to find and quickly delete spam users at once. For use this function, go to WP Console -> Users -> Check for spam. Also, you can export a list of spam users to the CSV.
Private black lists for anti-spam service
Automatically block comments and registrations from your private black IP/email address list.
Hide «Website» field for comments
This option hides the «Website» field from standard WordPress comments forms. After that spammers won’t be able to send spam links using «Website» field in the bottom of the comments form.
Low false/positive rate
This plugin uses multiple anti-spam tests to filter spam bots having as low false/positive rate as possible.
How does CleanTalk improve SEO for your website?
CleanTalk works faster than most of the other anti-spam plugins. It is common knowledge that the faster your site loads, the better your customer experience is, the better your SEO will be, and the better your site will convert. Speed is becoming increasingly important in SEO, conversion and user experience. Today, site speed is one of the most important ranking factors on Google. A site that loads slowly will lose visitors and potential revenue.
Among anti-spam plugins CleanTalk is one of the fastest. Despite the large plugin functionality, the developers have optimized the performance of
the plugin so that AntiSpam by CleanTalk is faster than most analogs. This contributes to the cloud service architecture, as all calculations take place in the cloud, not on the server, the server receives the finished result for further action.
Unlike stand-alone plugins (like Antispam Bee) Anti-Spam by CleanTalk uses less CPU that improves site response, visitors experience and SEO results.
Spam FireWall
Spam FireWall allows blocking the most active spam bots before they get access to your website. It prevents spam bots from loading website pages so your web server doesn’t have to perform all scripts on these pages. Also it prevents scanning of pages of the website by spam bots. Therefore Spam FireWall significantly reduces the load on your web server. Spam FireWall also makes CleanTalk the two-step protection from spam bots. Spam FireWall is the first step and it blocks the most active spam bots. CleanTalk Anti-Spam is the second step and checks all other requests on the website in the moment of submitting comments/registers etc. How does it work?
The visitor enters to your web site.
HTTP request data are being checked in the nearly 5.8 million of the identified spam bot IPs.
If it is an active spam bot, the bot gets a blank page, if it is a visitor then he receives a normal page. This process is completely transparent for the visitors.
All the CleanTalk Spam FireWall activity is being logged in the process of filtering.
Spam FireWall: Anti-Flood & Anti-Crawler
Spam FireWall: Anti-Flood and Anti-Crawler options are intended for blocking unwanted bots, content parsing, shop goods prices parsing or aggressive website scanning bots. Learn more https://cleantalk.org/help/anti-flood-and-anti-crawler
How to protect sites from spam bots without CAPTCHA?
The most popular anti-spam method is CAPTCHA – the annoying picture with curved and sloping symbols, which are presented to the visitor to decipher and fill in. In is supposed that spam bots won’t discern these CAPTCHA, but a visitor will. CAPTCHA provokes great irritation, but if the visitor wants to comment, he has to fill in these symbols time after time, making mistakes and starting once again. Sometimes CAPTCHA reminds us of the doodles of a two year old child. For users with vision problems CAPTCHA is an insurmountable obstacle. Users hate captcha. Captcha for users means “hate”. Unreadable CAPTCHA stops about 80% of site visitors. After 2 failed attempts to decipher CAPTCHA 95% of visitors reject further attempts. At the sight of CAPTCHA and after input errors, many visitors leave the resource. Thus, CAPTCHA helps to protect the resource spam both from bots and visitors. CAPTCHA is not a panacea from spam. Doubts concerning the Need for CAPTCHA?
“Ultimately, CAPTCHAs are useless for spam because they’re designed to tell you if someone is ‘human’ or not, but not whether something is spam or not.” Matt Mullenweg
You do not have to work in IT to know what spam is. Besides piles of unwanted email, there are spam bots, or special software programs designed to act as human website visitors that post unwelcome messages over the Internet to advertise dubious services. More often than not spam messages do not even make sense. Similar to bacteria and virus mutations developing antibiotic resistance, spam bots are becoming more resilient in penetrating Internet firewalls and security layers.
Real-time email validation. Is email real or Not.
It is very important to be sure that the user used his real email address. Spambots very often use fake email addresses, i.e. which addresses do not exist.
CleanTalk will check email addresses for existence in real time.
Non-existing email addresses also entail several other problems for website owners.
You can never contact them by email,
the client will never receive any notifications from you (account activation letter, password recovery, email distribution, notifications, etc.),
if you use email marketing for your clients, then a large number of nonexistent emails in the mailing list may result in your IP address being added to various blacklists of email servers.
Improve your email list with email validation without fake emails.
Blocking disposable & temporary emails
Block fake and suspicious users with disposable & temporary emails to improve email delivery. So, it also prevents malicious activity, spam bots, and internet trolls.
Latest and the most SPAM active IPs, Emails, Domains and ASN
Spam bots can use your search form to make a GET request with spam text. CleanTalk Anti-Spam has the option to protect your website search form from spam bots. Each time, the search generates a new page and if there are many requests, this can create additional load. So, under some conditions, spam searches can be indexed, which affects SEO,
Anti-Spam protection for website search forms repels spambots.
If your search form gets data too often the CleanTalk Anti-Spam plugin will add a pause and increase it with each new attempt to send data. It saves your web server processor time.
Spam protection allows you to not forbid indexation for the crawler bots if you really need it but simultaneously you will get protection from spambots.
You will always know what users were looking for on your site.
Disable comments
This option disables comments on your site. You can choose one or several options:
Disable comments for posts
Disable comments for pages
Disable comments for media
When using Disables comments, existing comments will not be deleted and will remain on the pages.
Email, Phones Address Encoder
CleanTalk Anti-Spam offers a feature called “Encode contact data” that is designed to encode all email addresses on the website pages. Encoding email, phontes addresses increases the level of protection of contact data from being abused, parsed, getting spammed and used in spam mailing lists by bots and online criminals. To reveal the encoded email address simply click on it and it will be decoded instantly.
Will the anti-spam plugin protect my theme?
Yes, it will. The Anti-spam by CleanTalk is compatible with any WordPress theme.
Should I use other anti-spam tools (Captcha, reCaptcha and etc.)?
CleanTalk stops up to 99.998% of spam bots, so you can disable other anti-spam plugins (especially CAPTCHA-type anti-spam plugins). In some cases several anti-spam plugins could conflict with each other.
Honeypot field
The option helps to block bots. The honeypot field option adds a hidden field to the form. When spambots come to a website form, they can fill out each input field. Enable this option to make the protection stronger on these forms. Learn more about supported forms here.
Installation instructions
Download, install and activate ‘Anti-spam by CleanTalk’.
Enter Access key in the settings: WordPress console -> Settings -> Antispam by CleanTalk
Do dummy spam comment (registration or contact message) with email stop_email@example.com. You should see notice: Forbidden. Sender blacklisted.
Done! The plugin is ready to use.
Video guide – Anti-Spam Plugin Installation in WordPress
Important! To test spam protection you must post a dummy submissions as website visitor (use must logged out from WordPress console), because the plugin doesn’t filter submissions from WordPress administrators.
How can setup plugin in WPMU version?
In WordPress multisite version you can switch the plugin to use Global Access key. In this way the plugin doesn’t show any options to enter Access key in plugin settings and doesn’t show Trial banner in WordPress backend. To setup global CleanTalk access key for all websites in WPMS, define constant in your wp-config.php file before defining database constants:
define('CLEANTALK_ACCESS_KEY', 'place your key here');
Make it before you activated the plugin. If the plugin already activated, deactivate it and add the code and active it again.
Now, all subsites will have this access key.
Manage and control spam protection
Go to Dashboard at the cleantalk.org or use Android, iPhone anti-spam app to manage and control spam protection.
سوالات متداول
Why are they spamming me?
Spammers want to get backlinks from your site to improve their site’s PageRank or redirect your visitors to malicious sites.This level of spam can damage your reputation with readers and commentators if you fail to tackle it. It is not uncommon for some WordPress websites to receive hundreds or even thousands of comments every week. However, by using a CleanTalk plugin, spam can be easily handled by your WordPress website.
Is the anti-spam protection safe for mobile visitors?
Yes, it is. The plugin doesn’t block mobile visitors as well as desktop website visitors. It uses several independent anti-spam tests to decrease the number of false outcomes and to have as low false-positive rate as possible. Multiple anti-spam tests help to avoid false/positive blocks for real website visitors even if one of the tests failed.
What does the plugin do with spam comments?
Spam comments are being moved to SPAM folder by default or you can set the option to ban spam comments silently.
How can I test the anti-spam protection?
Please use the email stop_email@example.com for comments, contacts or signups to see how the anti-spam protection works. Also, you can see the logs for the last 7 days in the Dashboard or look at the folder “Spam” for banned comments.
How does the plugin stop spam?
Please, note – administrator’s actions are NOT being checked.
The plugin uses several simple tests to stop spammers:
JavaScript anti-spam test. 99% of spam bots don’t have full JavaScript functions support. So, the plugin has the code which can be run by normal visitor and can’t be run by the spam bot.
Email, IP, domain spam activity list entries check. The plugin uses spam activity database online at cleantalk.org, consisting of more than 20 billion spam activity records of IPs, Emails, Domains and ASN. If the sender’s IP or Email is in the database, the sender gets some spam scores. To reduce false/positive rate the plugin not only uses the blacklist test to ban spammers, the sender will be banned when and only when multiple spam tests have been failed.
Comment submit time. Spam bots usually submit the info immediately after the page has been loaded, this happens because spam bots don’t actually fill the web form, they just send $_POST data to the blog. The normal visitor sends the data after several seconds or minutes.
What about pingback, trackback spam?
The plugin passes pingbacks without any checks by default. All trackbacks will be blocked if the sender had spam activity.
Can I use CleanTalk to remove pending spam comments?
Yes, you can. The plugin has the option to test all pending comments via database of spam active IP/Email, found spam comments will be moved to Trash folder.
How does the plugin find spam in pending comments or registered accounts?
The plugin checks all non-spam comments in the blacklist database and shows you those senders who have spam activity on other websites.
There are some differences between blacklist database and API to protect you from spam bot registrations/comments online. Blacklists show all history of spam activity, but our API (which is used in spam tests) relies on other parameters too: last day of activity, number of spam attacks during the last days etc. These mechanisms help us to reduce the number of false outcomes. So, there is nothing strange, if some emails/IPs are not found by bulk comments/accounts test.
Is the plugin compatible with WordPress MultiUser (WPMU or WordPress network)?
Yes, the plugin is compatible with WordPress MultiUser. Each blog in multisite environment has individual anti-spam options for the protection from spam bots.
After the installation I noticed that the number of spam attacks has been increased in the stats
There are a few reasons for this:
With the indexing of your web-site by the search systems, appearance of external links and better search results position, your web-site attracts more and more spambots.
Non-transparent protection systems like CAPTCHA or question/answer, that don’t have spam attacks stats, don’t let you see the whole picture, or the picture is incomplete.
Counting methods for spam attacks and spam bots are different for different systems, thus the diversity appears. We seek to provide detailed stats.
Why my dummy “spam” comment passed to the WordPress?
The plugin has several options to detect spam bots and humans. If you just post spammy text like this:
"I want to sell something", "Buy something here.." and etc
the comments will be passed, because the plugin detects sender as a human. So, use special email stop_email@example.com to test the anti-spam functionality or wait a few days to see how the plugin works.
Is it free or paid?
The plugin is free and distributed under the GPLv2 license.
CleanTalk anti-spam plugin works with a cloud base anti-spam service and this plugin is a Software as a service (SaaS).
CleanTalk it’s a free plugin that works with premium Cloud Anti-Spam service.
https://en.wikipedia.org/wiki/Software_as_a_service
The fact that the plugin works with a premium type service is mentioned in the plugin annotation and in its WordPress catalog description.
We are ready to help you with any issue regarding CleanTalk. There are hundreds of environment compositions and we do our best to cover as many as possible.
Can I use CleanTalk with cache plugins?
Anti-spam by CleanTalk doesn’t use static HTML code in its templates, so all anti-spam functions work correctly with any WordPress cache plugins.
Does the plugin protect from spam bots if I use forms with third-party services?
Yes, it does. Plugin protects web-forms on your websites which send data to third-party servers (like MailChimp). To enable this protection set the option ‘Protect external forms’ in the plugin settings.
Does CleanTalk compatible with Cloudflare?
CleanTalk is fully compatible with CloudFlare. Service doesn’t filter CloudFlares IP’s (AS13335) through blacklists database, so in this case plugin/service filters spam bots using other anti-spam tests.
Is CleanTalk compatible with a content delivery network (CDN)?
Yes, it is. CleanTalk works with any CDN system, i.e. CloudFlare, MaxCDN, Akamai.
I see two loads of script cleantalk_nocache.js. Why do you use it twice?
This script is used for AJAX JavaScript checking. Different themes use different mechanisms of loading, so we use two methods for loading our script. If you absolutely know what you are doing, you can switch one of the methods off by defining constants in your wp-config.php file:
define('CLEANTALK_AJAX_USE_BUFFER', false); //false - don't use output buffering to include AJAX script, true - use it
or
define('CLEANTALK_AJAX_USE_FOOTER_HEADER', false); //false - don't use wp_footer() and wp_header() for including AJAX script, true - use it
Can I add exclusions for some pages of my site?
Yes, you can. There is a special setting in plugin settings.
You could use this guide to learn more: https://cleantalk.org/help/exclusion-from-anti-spam-checking#wordpress
Can I not send my personal data to CleanTalk servers?
Yes, you can exclude your data. There is a special setting in plugin settings.
You could use this guide to learn more: https://cleantalk.org/help/exclusion-from-anti-spam-checking#WordPress_field_exclusions
How to test Spam FireWall?
Use special IP 10.10.10.10 in URL to test Spam FireWall. For example,
Attention! The incognito mode should be enabled in your browser when you do a test. To enable incognito mode press Ctrl+Shift+N for Chrome, Opera и Safari browsers; press Ctrl+Shift+P for Firefox, Internet Explorer and Microsoft Edge. A full guide to enable Incognito mode is here: https://www.wikihow.com/Activate-Incognito-Mode
How can I enter access key in WPMU version?
To set up global CleanTalk access key for all websites in WPMU, define constant in your wp-config.php file before defining database constants:
define('CLEANTALK_ACCESS_KEY', 'place your key here');
Now, all subsites will have this access key.
Does the plugin work with Varnish?
CleanTalk works with Varnish, it protects WordPress against spam, but by default the plugin generates a few cookies for the protection from spam bots and it also disables Varnish cache on pages where CleanTalk’s cookies have been stored. To get rid of the issue with cache turn off the option ‘Set cookies’ in the plugin settings.
Now the plugin will protect WordPress comments, registrations and most of popular contact forms, but will not protect some of rarely used contact forms.
Does the anti-spam plugin work with Accelerated Mobile Pages (AMP)?
Yes, it does. But you have to turn off the SpamFireWall and the option ‘Use AJAX for JavaScript check’ in Advanced settigns of the plugin to be fully compatible with Accelerated Mobile Pages.
Should I change anything in the plugin’s settings or in my CleanTalk Dashboard when I switch my website from HTTP to HTTPS or vice versa?
No. You don’t need to change anything in the plugin’s settings or in your CleanTalk Dashboard. The plugin will work regardless of the protocol.
Spam Comment Management
By default, all spam comments are placed in the spam folder, now you can change the way the plugin deals with spam comments:
Move to the Spam folder. All spam comments will be placed to the folder “Spam” in the WordPress Comments section except comments with Stop-Words. Stop-Word comments will be always stored in the “Pending” folder.
You can prevent the proliferation of Spam folder. It can be cleaned automatically using the option “Keep spam comments for 15 days.” Enable this option in the settings of the plugin: WordPress Admin Page -> Settings -> Antispam by CleanTalk -> Advanced settings -> enable “Keep spam comments for 15 days” -> Save Changes.
Move to Trash. All spam comments will be placed to the folder “Trash” in the WordPress Comments section except comments with Stop-Words. Stop-Word comments will be always stored in the “Pending” folder.
Ban comments without moving to WordPress backend. All spam comments will be deleted permanently without going to the WordPress backend except comments with Stop-Words. Stop-Word comments will be always stored in the “Pending” folder.
What comments were blocked and banned can be seen in the Anti-Spam Log here: https://cleantalk.org/my/show_requests?int=week
To manage the actions with spam comments, go to the Control Panel, select the website you want to change the actions for and go to “Settings” under the name of the website.
Please, read more here:
https://cleantalk.org/help/spam-comment-management
Anti Spam for Contact Forms, Comments & Online Stores – CleanTalk
توسط CleanTalk Inc
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Top-rated anti-spam protection for WordPress. No CAPTCHA, no puzzles, and no visitor friction – just automatic spam blocking for forms, comments, registrations, subscriptions, and fake orders.
Anti-Spam features
Free trial then $12 per year
CleanTalk is an anti-spam plugin which works with the premium Cloud Anti-Spam service cleantalk.org. This plugin as a service https://developer.wordpress.org/plugins/wordpress-org/detailed-plugin-guidelines/#6-software-as-a-service-is-permitted
Public reviews
AntiSpam protection for comments
Native spam protection for WordPress, JetPack comments and any other comment plugins. The plugin moves spam comments to SPAM folder or you can set the option to ban spam comments silently. You can also enable the option in the plugin settings to auto-delete comments from SPAM folder.
Contact Form 7 spam filter
Plugin extends spam protection for Contact Form 7 (CF7). It can be used with any other third-party spam filters.
How to protect your Contact Form 7 using CleanTalk Anti-Spam plugin
Elementor Website Builder filter
Plugin extends spam protection for Elementor Website Builder. It filters spam submisssions and tested for contact form type.
Gravity forms spam filter
Plugin extends spam protection for Gravity forms. It filters spam submisssions for any type of forms.
Formidable Form Builder spam filter
Plugin extends spam protection for Formidable Form Builder. It filters spam submisssions for any type of forms – Contact Form, Survey & Quiz Forms.
Leaky Paywall subscription protection
Plugin protects Leaky Paywall plugin (by ZEEN01) against spam subscriptions. It can be used with any other third-party spam filters.
HubSpot protection for embedded forms
Plugin protects HubSpot embedded forms against any spam submissions. Guide to start using embedded forms https://knowledge.hubspot.com/forms/how-can-i-share-a-hubspot-form-if-im-using-an-external-site
Contact Form by WPForms spam filter
Plugin extends Contact Form by WPForms to provide spam protection. It filters spam submissions for each type of forms – simple contact form, marketing form, request a quote and etc.
WooCommerce spam & fake orders filter
Anti-spam by CleanTalk filters spam registrations, spam reviews, and fake orders for WooCommerce (any eCommerce plugin as well). The plugin is fully compatible with WooCommerce 2.1+ and online stores.
Spam filter for theme contact forms
The plugin blocks spam emails via any theme (built-in ones included) contact forms. The plugin filters spam emails silently (without any error notices on WordPress frontend) in AJAX forms as well.
bbPress spam filter
Spam protection for everything about bbPress: logins, registrations, forums, topics and replies.
Many other great contact, signups and all kind of forms that supported by CleanTalk
Protection for forms above works as built-in function of Anti-Spam by CleanTalk, without any additional actions from a user. Anywaym, if you have missed spam, try to activate a few options below. If nothing helps, ask for help at support forum https://wordpress.org/support/plugin/cleantalk-spam-protect/
Check existing comments for spam. Bulk spam comments removal. Spam comment Cleaner
With the help of anti-spam by CleanTalk you can inspect through existing comments to find and quickly delete spam comments at once. To use this function, go to WP Console -> Comments -> Find spam comments.
Check existing users for spam. Bulk spam accounts removal. Spam users cleaner
With the help of anti-spam by CleanTalk you can inspect through existing accounts to find and quickly delete spam users at once. For use this function, go to WP Console -> Users -> Check for spam. Also, you can export a list of spam users to the CSV.
Private black lists for anti-spam service
Automatically block comments and registrations from your private black IP/email address list.
Hide «Website» field for comments
This option hides the «Website» field from standard WordPress comments forms. After that spammers won’t be able to send spam links using «Website» field in the bottom of the comments form.
Low false/positive rate
This plugin uses multiple anti-spam tests to filter spam bots having as low false/positive rate as possible.
How does CleanTalk improve SEO for your website?
CleanTalk works faster than most of the other anti-spam plugins. It is common knowledge that the faster your site loads, the better your customer experience is, the better your SEO will be, and the better your site will convert. Speed is becoming increasingly important in SEO, conversion and user experience. Today, site speed is one of the most important ranking factors on Google. A site that loads slowly will lose visitors and potential revenue.
Among anti-spam plugins CleanTalk is one of the fastest. Despite the large plugin functionality, the developers have optimized the performance of
the plugin so that AntiSpam by CleanTalk is faster than most analogs. This contributes to the cloud service architecture, as all calculations take place in the cloud, not on the server, the server receives the finished result for further action.
https://s.w.org/plugins/cleantalk-spam-protect/screenshot-5.png?r=1288723
Unlike stand-alone plugins (like Antispam Bee) Anti-Spam by CleanTalk uses less CPU that improves site response, visitors experience and SEO results.
Spam FireWall
Spam FireWall allows blocking the most active spam bots before they get access to your website. It prevents spam bots from loading website pages so your web server doesn’t have to perform all scripts on these pages. Also it prevents scanning of pages of the website by spam bots. Therefore Spam FireWall significantly reduces the load on your web server. Spam FireWall also makes CleanTalk the two-step protection from spam bots. Spam FireWall is the first step and it blocks the most active spam bots. CleanTalk Anti-Spam is the second step and checks all other requests on the website in the moment of submitting comments/registers etc. How does it work?
All the CleanTalk Spam FireWall activity is being logged in the process of filtering.
Spam FireWall: Anti-Flood & Anti-Crawler
Spam FireWall: Anti-Flood and Anti-Crawler options are intended for blocking unwanted bots, content parsing, shop goods prices parsing or aggressive website scanning bots. Learn more https://cleantalk.org/help/anti-flood-and-anti-crawler
How to protect sites from spam bots without CAPTCHA?
The most popular anti-spam method is CAPTCHA – the annoying picture with curved and sloping symbols, which are presented to the visitor to decipher and fill in. In is supposed that spam bots won’t discern these CAPTCHA, but a visitor will. CAPTCHA provokes great irritation, but if the visitor wants to comment, he has to fill in these symbols time after time, making mistakes and starting once again. Sometimes CAPTCHA reminds us of the doodles of a two year old child. For users with vision problems CAPTCHA is an insurmountable obstacle. Users hate captcha. Captcha for users means “hate”. Unreadable CAPTCHA stops about 80% of site visitors. After 2 failed attempts to decipher CAPTCHA 95% of visitors reject further attempts. At the sight of CAPTCHA and after input errors, many visitors leave the resource. Thus, CAPTCHA helps to protect the resource spam both from bots and visitors. CAPTCHA is not a panacea from spam. Doubts concerning the Need for CAPTCHA?
“Ultimately, CAPTCHAs are useless for spam because they’re designed to tell you if someone is ‘human’ or not, but not whether something is spam or not.” Matt Mullenweg
You do not have to work in IT to know what spam is. Besides piles of unwanted email, there are spam bots, or special software programs designed to act as human website visitors that post unwelcome messages over the Internet to advertise dubious services. More often than not spam messages do not even make sense. Similar to bacteria and virus mutations developing antibiotic resistance, spam bots are becoming more resilient in penetrating Internet firewalls and security layers.
Real-time email validation. Is email real or Not.
It is very important to be sure that the user used his real email address. Spambots very often use fake email addresses, i.e. which addresses do not exist.
CleanTalk will check email addresses for existence in real time.
Non-existing email addresses also entail several other problems for website owners.
Improve your email list with email validation without fake emails.
Blocking disposable & temporary emails
Block fake and suspicious users with disposable & temporary emails to improve email delivery. So, it also prevents malicious activity, spam bots, and internet trolls.
Latest and the most SPAM active IPs, Emails, Domains and ASN
Effective date is July 13th, 2025. Real-time data is available at https://cleantalk.org/blacklists.
Stops Spam in Search Form
Spam bots can use your search form to make a GET request with spam text. CleanTalk Anti-Spam has the option to protect your website search form from spam bots. Each time, the search generates a new page and if there are many requests, this can create additional load. So, under some conditions, spam searches can be indexed, which affects SEO,
You will always know what users were looking for on your site.
Disable comments
This option disables comments on your site. You can choose one or several options:
When using Disables comments, existing comments will not be deleted and will remain on the pages.
Email, Phones Address Encoder
CleanTalk Anti-Spam offers a feature called “Encode contact data” that is designed to encode all email addresses on the website pages. Encoding email, phontes addresses increases the level of protection of contact data from being abused, parsed, getting spammed and used in spam mailing lists by bots and online criminals. To reveal the encoded email address simply click on it and it will be decoded instantly.
Will the anti-spam plugin protect my theme?
Yes, it will. The Anti-spam by CleanTalk is compatible with any WordPress theme.
Should I use other anti-spam tools (Captcha, reCaptcha and etc.)?
CleanTalk stops up to 99.998% of spam bots, so you can disable other anti-spam plugins (especially CAPTCHA-type anti-spam plugins). In some cases several anti-spam plugins could conflict with each other.
Honeypot field
The option helps to block bots. The honeypot field option adds a hidden field to the form. When spambots come to a website form, they can fill out each input field. Enable this option to make the protection stronger on these forms. Learn more about supported forms here.
Installation instructions
Download, install and activate ‘Anti-spam by CleanTalk’.
Get Access key https://cleantalk.org/register
Enter Access key in the settings: WordPress console -> Settings -> Antispam by CleanTalk
Do dummy spam comment (registration or contact message) with email stop_email@example.com. You should see notice: Forbidden. Sender blacklisted.
Done! The plugin is ready to use.
Video guide – Anti-Spam Plugin Installation in WordPress
Important! To test spam protection you must post a dummy submissions as website visitor (use must logged out from WordPress console), because the plugin doesn’t filter submissions from WordPress administrators.
How can setup plugin in WPMU version?
In WordPress multisite version you can switch the plugin to use Global Access key. In this way the plugin doesn’t show any options to enter Access key in plugin settings and doesn’t show Trial banner in WordPress backend. To setup global CleanTalk access key for all websites in WPMS, define constant in your wp-config.php file before defining database constants:
Make it before you activated the plugin. If the plugin already activated, deactivate it and add the code and active it again.
Now, all subsites will have this access key.
Manage and control spam protection
Go to Dashboard at the cleantalk.org or use Android, iPhone anti-spam app to manage and control spam protection.
سوالات متداول
Spammers want to get backlinks from your site to improve their site’s PageRank or redirect your visitors to malicious sites.This level of spam can damage your reputation with readers and commentators if you fail to tackle it. It is not uncommon for some WordPress websites to receive hundreds or even thousands of comments every week. However, by using a CleanTalk plugin, spam can be easily handled by your WordPress website.
Yes, it is. The plugin doesn’t block mobile visitors as well as desktop website visitors. It uses several independent anti-spam tests to decrease the number of false outcomes and to have as low false-positive rate as possible. Multiple anti-spam tests help to avoid false/positive blocks for real website visitors even if one of the tests failed.
Spam comments are being moved to SPAM folder by default or you can set the option to ban spam comments silently.
Please use the email stop_email@example.com for comments, contacts or signups to see how the anti-spam protection works. Also, you can see the logs for the last 7 days in the Dashboard or look at the folder “Spam” for banned comments.
Please, note – administrator’s actions are NOT being checked.
The plugin uses several simple tests to stop spammers:
The plugin passes pingbacks without any checks by default. All trackbacks will be blocked if the sender had spam activity.
Yes, you can. The plugin has the option to test all pending comments via database of spam active IP/Email, found spam comments will be moved to Trash folder.
The plugin checks all non-spam comments in the blacklist database and shows you those senders who have spam activity on other websites.
There are some differences between blacklist database and API to protect you from spam bot registrations/comments online. Blacklists show all history of spam activity, but our API (which is used in spam tests) relies on other parameters too: last day of activity, number of spam attacks during the last days etc. These mechanisms help us to reduce the number of false outcomes. So, there is nothing strange, if some emails/IPs are not found by bulk comments/accounts test.
To check comments please go here:
To check users please go here:
Yes, the plugin is compatible with WordPress MultiUser. Each blog in multisite environment has individual anti-spam options for the protection from spam bots.
There are a few reasons for this:
The plugin has several options to detect spam bots and humans. If you just post spammy text like this:
the comments will be passed, because the plugin detects sender as a human. So, use special email stop_email@example.com to test the anti-spam functionality or wait a few days to see how the plugin works.
The plugin is free and distributed under the GPLv2 license.
CleanTalk anti-spam plugin works with a cloud base anti-spam service and this plugin is a Software as a service (SaaS).
CleanTalk it’s a free plugin that works with premium Cloud Anti-Spam service.
https://en.wikipedia.org/wiki/Software_as_a_service
The fact that the plugin works with a premium type service is mentioned in the plugin annotation and in its WordPress catalog description.
We are ready to help you with any issue regarding CleanTalk. There are hundreds of environment compositions and we do our best to cover as many as possible.
Anti-spam by CleanTalk doesn’t use static HTML code in its templates, so all anti-spam functions work correctly with any WordPress cache plugins.
Yes, it does. Plugin protects web-forms on your websites which send data to third-party servers (like MailChimp). To enable this protection set the option ‘Protect external forms’ in the plugin settings.
CleanTalk is fully compatible with CloudFlare. Service doesn’t filter CloudFlares IP’s (AS13335) through blacklists database, so in this case plugin/service filters spam bots using other anti-spam tests.
Yes, it is. CleanTalk works with any CDN system, i.e. CloudFlare, MaxCDN, Akamai.
Yes, you can. Follow this guide https://cleantalk.org/help/api-check-message
This script is used for AJAX JavaScript checking. Different themes use different mechanisms of loading, so we use two methods for loading our script. If you absolutely know what you are doing, you can switch one of the methods off by defining constants in your wp-config.php file:
or
Yes, you can. There is a special setting in plugin settings.
You could use this guide to learn more: https://cleantalk.org/help/exclusion-from-anti-spam-checking#wordpress
Yes, you can exclude your data. There is a special setting in plugin settings.
You could use this guide to learn more: https://cleantalk.org/help/exclusion-from-anti-spam-checking#WordPress_field_exclusions
Use special IP 10.10.10.10 in URL to test Spam FireWall. For example,
Attention! The incognito mode should be enabled in your browser when you do a test. To enable incognito mode press Ctrl+Shift+N for Chrome, Opera и Safari browsers; press Ctrl+Shift+P for Firefox, Internet Explorer and Microsoft Edge. A full guide to enable Incognito mode is here: https://www.wikihow.com/Activate-Incognito-Mode
To set up global CleanTalk access key for all websites in WPMU, define constant in your wp-config.php file before defining database constants:
Now, all subsites will have this access key.
CleanTalk works with Varnish, it protects WordPress against spam, but by default the plugin generates a few cookies for the protection from spam bots and it also disables Varnish cache on pages where CleanTalk’s cookies have been stored. To get rid of the issue with cache turn off the option ‘Set cookies’ in the plugin settings.
Now the plugin will protect WordPress comments, registrations and most of popular contact forms, but will not protect some of rarely used contact forms.
Yes, it does. But you have to turn off the SpamFireWall and the option ‘Use AJAX for JavaScript check’ in Advanced settigns of the plugin to be fully compatible with Accelerated Mobile Pages.
No. You don’t need to change anything in the plugin’s settings or in your CleanTalk Dashboard. The plugin will work regardless of the protocol.
By default, all spam comments are placed in the spam folder, now you can change the way the plugin deals with spam comments:
You can prevent the proliferation of Spam folder. It can be cleaned automatically using the option “Keep spam comments for 15 days.” Enable this option in the settings of the plugin: WordPress Admin Page -> Settings -> Antispam by CleanTalk -> Advanced settings -> enable “Keep spam comments for 15 days” -> Save Changes.
Move to Trash. All spam comments will be placed to the folder “Trash” in the WordPress Comments section except comments with Stop-Words. Stop-Word comments will be always stored in the “Pending” folder.
Ban comments without moving to WordPress backend. All spam comments will be deleted permanently without going to the WordPress backend except comments with Stop-Words. Stop-Word comments will be always stored in the “Pending” folder.
What comments were blocked and banned can be seen in the Anti-Spam Log here: https://cleantalk.org/my/show_requests?int=week
To manage the actions with spam comments, go to the Control Panel, select the website you want to change the actions for and go to “Settings” under the name of the website.
Please, read more here:
https://cleantalk.org/help/spam-comment-management
Yes, it is. Please read this article,
https://cleantalk.org/publicoffer#cleantalk_gdpr_compliance
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آخرین انتشار
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3 ماه پیش
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نگارش وردپرس
وردپرس 4.7+
تست شده از نسخه
وردپرس 7.0
نگارش PHP
PHP 7.2+
تگ ها
antispam captcha comments contact-form spam
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