Adds a hidden input field containing a challenge string to forms. Client must execute included JavaScript to calculate the expected response.
Uploaded on
27 Sep 2025
by
Torben Hansen
This extension supports TYPO3:
Adds a bot detection via JavaScript and a Validator to EXT:form, GDPR compliant without a captcha.
Uploaded on
10 Jul 2025
by
Andre Kraus
This extension supports TYPO3:
TYPO3 form element for spam protection by utilizing the proof-of-work mechanism Altcha.
Uploaded on
04 Jul 2025
by
Benjamin Bysäth
This extension supports TYPO3:
TYPO3 Extension to add hCaptcha to EXT:form - The privacy friendly captcha alternative.
Uploaded on
10 Mar 2025
by
dreistrom.land AG
This extension supports TYPO3:
TYPO3 Extension to add Turnstile to EXT:form
Uploaded on
27 Sep 2023
by
TRITUM GmbH
This extension supports TYPO3:
Use Google reCAPTCHA (v2/v3) in your own TYPO3 extensions, EXT:form, EXT:powermail and EXT:formhandler as spam protection.
Uploaded on
03 Feb 2021
by
Jan Haffner
This extension supports TYPO3:
Protect your mailform (default TYPO3 contact form) from spam by a CSS trick (honeypot). Demo available under http://www.sbtheke.de/demo/cssspamprotect/.
Uploaded on
09 Jan 2017
by
Sven Burkert
This extension supports TYPO3:
Spam shield without captcha to avoid spam in powermail, ve_guestbook, comments, t3_blog, direct_mail_subscription and standard TYPO3 mailforms. Session check, Link check, Time…
Uploaded on
27 Feb 2015
by
Bjoern Jacob, Ralf Zimmermann, Alex Kellner
This extension supports TYPO3: