CleanTalk Anti-Spam. Spam Firewall & Bot protection for WordPress Plugin Directory

Trusted by over 200,000 websites and rated among the top anti-spam solutions for WordPress in 2026. No CAPTCHAs, no puzzles, and no visitor friction — just automatic spam blocking for forms, comments, registrations, subscriptions, and fake orders. Powered by a global spam detection network that includes over 1,078,000 websites and helps stop spam before it reaches your website. Install it in less than 30 seconds and start protecting your site immediately.

Superpowers

Stops spam comments.

Stops spam registrations and logins.

Stops spam contact emails.

Stops fake orders eCommerce sites and online stores.

Antispam for bookings.

Antispam subscriptions.

Stops spam surveys, polls.

Stops spam in WooCommerce.

Antispam for Search Form.

Real-time email validation. Check if an email is real or fake.

Checks and removes the existing spam comments and spam users.

Blocking disposable & temporary emails.

Block messages by languages, countries, networks and stop words.

Public reviews

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.

Compare reCAPTCHA & Akismet VS CleanTalk

CleanTalk vs Google reRECAPTCHA

CleanTalk vs Akismet

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

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 Antispam 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

Contact Form by WPForms Antispam 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.

Antispam for WooCommerce & 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.

Many other great contact, signups and all kind of forms that supported by Anti-Spam plugin by CleanTalk

Asgaros Forum

Avada Forms

AWeber form builder

Awesome Support – WordPress HelpDesk & Support Plugin

Back In Stock Notifier for WooCommerce | WooCommerce Waitlist Pro

bbPress by John James Jacoby

Brave Popup Builder – Popup, Optins, Lead Generation, Survey & Interactive Content

Brevo – Email, SMS, Web Push, Chat, and more by Brevo

Calculated Fields Form

Chatway Live Chat – AI Chatbot, Customer Support, FAQ & Helpdesk Customer Service & Chat Buttons

Contact Form Clean and Simple

Contact Form by BestWebSoft – Advanced WP Contact Form Builder for WordPress

Contact Form Plugin by Fluent Forms Ninja forms

Contact Form by Supsystic

Contact Form Email

Constant Contact Forms

Comments – wpDiscuz By AdvancedCoding

Customer Reviews for WooCommerce

Floating Chat Widget: Contact Chat Icons, Telegram Chat, Line Messenger, WeChat, Email, SMS, Call Button – Chaty

Forminator Forms – Contact Form, Payment Form & Custom Form Builder

Easy Digital Downloads – eCommerce Payments and Subscriptions made easy

eForm – WordPress Form Builder

Elementor – Build, Design & Manage Forms From One Place

Elfsight Blocks for Elementor — 80+ Widgets

Events Manager – Calendar, Bookings, Tickets, and more! By Marcus (aka @msykes)

Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI

FiboSearch – Ajax Search for WooCommerce

Flamingo

Fluentbooking.com

Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More

Form Maker by 10Web – Mobile-Friendly Drag & Drop Contact Form Builder

GeoDirectory – WP Business Directory Plugin and Classified Listings Directory

GiveWP – Donation Plugin and Fundraising Platform

gravityforms.com – Powerful data capture fueled by Gravity Forms

Gwolle Guestbook

Happyforms – Form Builder for WordPress: Drag & Drop Contact Forms, Surveys, Payments & Multipurpose Forms

HivePress – Business Directory, Listings & Classified Ads Plugin

HubSpot All-In-One Marketing – Forms, Popups, Live Chat

Hustle – Email Marketing, Lead Generation, Optins, Popups

JetFormBuilder — Dynamic Blocks Form Builder

Jetpack – WP Security, Backup, Speed, & Growth

Jotform – Online Forms — Customizable Payment, Contact, Quiz, Survey Form Builder

Kadence Blocks — Page Builder Toolkit for Gutenberg Editor

Kali Forms (Free & Pro) — Contact Form & Drag-and-Drop Builder

Klaviyo

Kulahub

Landing Page Builder – Coming Soon page, Maintenance Mode, Lead Page, WordPress Landing Pages

Leaky Paywall

LearnPress – WordPress LMS Plugin for Create and Sell Online Courses

Lead Form Builder & Contact Form By ThemeHunk

Login & Register Customizer – Popup | Slider | Inline | WooCommerce

MailChimp Forms by MailMunch

MailOptin – Popup, Optin Forms & Email Newsletters for Mailchimp, HubSpot, AWeber Etc.

My Sticky Elements – All-in-one Sticky Floating Contact Form, Call, Click to Chat, and 50+ Social Icon Tabs

MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor

Newsletter – Send awesome emails from WordPress by Stefano Lissa

Newsletters by Tribulant Software

Newsletters – MC4WP: Mailchimp for WordPress

NEX-Forms – Ultimate Forms Plugin for WordPress by Basix

Nextend Social Login and Register by Nextendweb

Ninja forms by Kevin Stover

Piotnet by piotnet.com

Product Enquiry for WooCommerce (Now with AI Assistant) By WisdmLabs

Quform by quform.com

QuickCal by quickcal.co

RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login By Metagauss

Simple Registration for WooCommerce By Astoundify

Smart Forms – when you need more than just a contact form By EDGARROJAS

Strong Testimonials By WP Chill

SureForms – Drag & Drop Contact Form & Form Builder, Payment Form, Survey, Quiz & Calculator By Brainstorm Force

User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder By wpeverest

Visual Form Builder By Matthew Muro

WP Booking System – Booking Calendar By Roland Murg

User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration By weDevs

WS Form LITE – Drag & Drop Contact Form Builder By Mark Westguard

Wufoo Shortcode By wronganswersonly

WP User Frontend, UserPro

WordPress Landing Pages

ZeroBounce Email Verification & Validation By zerobounce

Zoho Forms – Drag & Drop Form Builder for Websites – Contact Forms, Payment Forms, Order Forms & More By Zoho Forms

Protection for the forms above works as a built-in feature of Anti-Spam by CleanTalk without requiring any additional actions from the user.

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.

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

By default, well-known good bots — including AI crawlers such as GPTBot (ChatGPT), ClaudeBot (Claude), Google-Extended (Gemini), and Copilot — are allowed. You can choose which of these bots to block individually in your private lists. Blocking a bot will stop the corresponding AI service from accessing your content.

How to protect sites from spam bots without CAPTCHA? CleanTalk Anti-Spam protects websites from spam bots without using traditional CAPTCHA, reCAPTCHA, or other visitor challenges. Instead of showing CAPTCHA puzzles, the service uses behavioral analysis, invisible JavaScript tests, and a global spam database to detect spam automatically in the background. This CAPTCHA-free anti-spam protection works for contact forms, comments, registrations, and WooCommerce checkouts without creating friction for real visitors. By replacing CAPTCHA with automated spam detection, CleanTalk helps improve usability, accessibility, and conversion rates while still blocking spam effectively.

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

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.

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,

Anti-Spam protection for website search forms repels spam bots.

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 spam bots.

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.

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.