Your CAPTCHA is costing you customers. Measure it in two minutes.
Pass reCAPTCHA v2 and v3, hCaptcha and Cloudflare Turnstile on the same form with a stopwatch. Then send it with CleanTalk: zero clicks for the visitor, and the spam still never gets through.
1,105,000+ websites protectedup to 99.97% accuracylive in 60 seconds7-day free trial, no card
Run the test: six CAPTCHAs, one clock
Same fields, same button. Only the protection changes. The clock starts on your first touch of the form and stops when the form is accepted. A widget that rejects you counts as a failed attempt.
- Keys
- official vendor test keys
- Server check
- token verified on submit
- Stored
- time, attempts, device. No IP, no field content.
Your results: seconds lost per CAPTCHA
Your time, your failed attempts, and the median of all visitors once enough runs are collected. Every second here is a visitor who may give up before the form is sent.
No runs yet. Press "Start the free test" above: two minutes, no sign-up, results stay in your browser.
| CAPTCHA | Your time | Relative | Failed attempts | Median, all visitors |
|---|
How we measure: the clock starts on the first interaction with the form and stops when the submission is accepted. Runs longer than five minutes are marked abandoned and excluded from the median. Looking for your reCAPTCHA v3 score only? Use the reCAPTCHA score test.
Every CAPTCHA, one card each
Who makes it, what it looks like, how it gets bypassed, whether you can install it, and what to use instead. Status changes over time; the address does not.
reCAPTCHA v2
Google, since 2014
The checkbox everyone knows. Checkbox and invisible modes, image puzzles as fallback.
reCAPTCHA v3
Google, since 2018
Scores every visitor silently. You pick the threshold and what happens below it.
hCaptcha
Intuition Machines, since 2017
The privacy-positioned reCAPTCHA alternative, used by Cloudflare in 2020-2022.
Cloudflare Turnstile
Cloudflare, since 2022
No puzzles by design. We also show the "always blocks" test key so you can see a rejection.
CleanTalk, no CAPTCHA
CleanTalk, since 2012
Email, IP and behaviour checked against a network of 1,105,000+ websites. Zero visible steps.
CAPTCHAs you cannot install
Custom builds and art projects
DOOM CAPTCHA, Worst CAPTCHAs Ever and other one-offs that live on someone else's site.
CAPTCHAs that no longer exist
1997 - 2026
From distorted words to cat photos to mini-games: what was tried, how it was broken, what replaced it.
Questions site owners ask before switching
Will CleanTalk block my real customers?
Rarely. CleanTalk reports up to 99.9705% average accuracy with a false-positive rate of 0.0485% (figures as of 18 November 2025). A sender blocked by mistake can be moved to your allow list in one click from the log.
Do I have to change my forms?
No. The form stays exactly as it is. The check runs in the cloud when the form is sent, so there is no widget, checkbox or puzzle to add.
What does it cost?
7-day free trial, no card. After that from $12 per website per year, with no limit on the number of checks.
Does it work with my platform?
Plugins for WordPress, Joomla, Drupal, OpenCart, Magento and 15+ platforms, plus an API for custom forms. Setup takes about 60 seconds: install the plugin, paste the access key.
Does it stop human spam, not only bots?
Yes. A CAPTCHA only proves a browser is real. CleanTalk checks the sender's email and IP reputation, behaviour on the page and the text of the message, so manual spam is filtered too.
Why site owners switch after this test
More submissions
No checkbox, no image grid, nothing to fail. The form you have today, sent on the first try.
Human spam blocked too
A CAPTCHA proves a browser is real. CleanTalk checks who is sending and what they send: email and IP reputation, behaviour, text.
Live in 60 seconds
Plugins for WordPress, Joomla, Drupal and 15+ platforms, or one API call. Up to 99.97% accuracy across 1,105,000+ websites.
Stop the spam. Keep every customer.
Remove the CAPTCHA from your forms and let the cloud do the checking. 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
Live widgets run on the vendors' official public test keys (Google reCAPTCHA FAQ, hCaptcha docs, Cloudflare Turnstile docs). CleanTalk figures: cleantalk.org/antispam (1,105,000+ websites; up to 99.9705% average accuracy as of 18 November 2025; setup in 60 seconds), cleantalk.org/help/anti-spam-faq (7-day trial). Research figures: Bursztein, Bethard, Fabry, Mitchell, Jurafsky, "How Good Are Humans at Solving CAPTCHAs?", IEEE S&P 2010; Searles et al., "An Empirical Study & Evaluation of Modern CAPTCHAs", USENIX Security 2023. CleanTalk is not affiliated with Google, Cloudflare or Intuition Machines. Anti-spam for websites
