Availablelive testthis is our product

CleanTalk, no CAPTCHA

Not a widget. The form stays exactly as it is; when it is sent, the cloud checks the sender's email and IP reputation across a network of 1,105,000+ websites, the behaviour on the page (typing, timing, JavaScript) and the text, and returns allow or deny with a reason. The visitor never sees a step.

Vendor

CleanTalk, since 2012

Type

Invisible, reputation + behaviour + content

Can I install it?

Yes: WordPress, Joomla, Drupal, OpenCart, Magento and 15+ platforms, plus an API

Price

From $12 per site per year, 7-day free trial, no card

Stops human spam?

Yes, by sender reputation and text, which no CAPTCHA does

Visible to the visitor

Nothing

The same form, nothing added

demo

Try it with stop_email@example.com: that address is permanently blacklisted for testing and is what a spammer sees. Any other address passes.

Time it in the full test

What the visitor goes through

Nothing. They fill the form and press Send. The decision is made on the server in a fraction of a second.
A blocked sender sees one line: "Forbidden. Sender blacklisted. Anti-Spam by CleanTalk." A real customer who is blocked by mistake can be moved to your allow list in one click from the log.

What it checks

Reputation. Has this email or IP been sending spam on other sites in the network? The database holds millions of records and updates continuously.
Behaviour. Was the page loaded, was JavaScript on, how long did the form take, was the text typed or injected.
Content. Links, stop words, patterns typical of spam pitches.

Trade-offs, honestly

It is a cloud service: the check needs a round trip to CleanTalk, and it is paid after the trial. A CAPTCHA widget is free and self-contained.
It decides after the form is sent, not before the page is viewed, so it does not throttle page views or scrapers; that is a separate product.

Install

A plugin and one access key: WordPress, Joomla, Drupal, OpenCart, Magento and 15+ platforms, live in about 60 seconds. Custom forms connect through the check_message API.

Zero extra seconds, on your own site

Keep your form exactly as it is. Add the plugin or one API call, and the cloud takes the spam. 7-day free trial, no card, then $12 per website per year.

1,105,000+ websites protectedup to 99.97% accuracylive in 60 seconds7-day free trial, no card

Start 7-day free trial Run the full test

Sources: cleantalk.org/antispam (1,105,000+ websites), cleantalk.org/help/anti-spam-faq (7-day trial), WordPress.org plugin page (200,000+ active installations). Related: reCAPTCHA v2, reCAPTCHA v3, hCaptcha, Turnstile.