by Nicolas LESCURE / RadicalSolution 1 (0 reviews)

SOS Captcha — Privacy-First Spam Protection

Name: SOS Captcha — Privacy-First Spam Protection
Author: Nicolas LESCURE / RadicalSolution

Privacy-first spam protection with an interactive slider challenge. No tracking, no cookies, no external services. GDPR compliant by design.

SOS Captcha ranks #57,621 among WordPress.org plugins with 1+ active installations, is #2,643 of 4,589 in the Security category, a 1/5 rating from 0 reviews, and was last updated May 7, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Tested up to WP 6.9 (Current: 7.1.2)

v1.0.71 Current Version v1.0.71

Updated 4 months ago Last Update on 07 May, 2026

Refreshed 8 hours ago Last Refreshed on

#2,643 of 4,589 in Security

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Rank

#57,621

— No change

Active Installs

-50%

KW Avg Position

70.5

6 worse

Downloads

+1 today

Support Resolved

— No change

Rating

20%

Review 1 out of 5

1 (0 reviews)

Next Milestone 10

Total Progress 20%

0+ 10+

56,675

Ranks to Climb

Growth Needed

8,000,000

Active Installs

Pro

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Rank Changes

Current #57,621

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

1.0

0 reviews

Overall 20%

0 (0%)

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Plugin Details

Version: 1.0.71
Last Updated: May 07, 2026
Requires WP: 5.8+
Tested Up To: 6.9
PHP Version: 7.4 or higher
Author: Nicolas LESCURE / RadicalSolution

Support & Rating

Rating: ★ ☆ ☆ ☆ ☆ 1
Reviews: 0
Support Threads: 0
Resolved: 0%

Keywords

anti-spam captcha alternative contact form privacy reCAPTCHA-alternative

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Frequently Asked Questions

Common questions about SOS Captcha — Privacy-First Spam Protection

Yes. SOS Captcha: Collects no personal data Sets no cookies

Processes everything on your server Requires no consent banner

Yes — the interactive slider requires JavaScript to work. If JavaScript is disabled, the form submission is blocked to protect against simple bots. For visitors without JavaScript, we recommend keeping a secondary spam protection layer.

No. The plugin adds less than 20KB of assets and uses efficient server-side processing. Operations use WordPress transients which auto-expire. There are no external API calls.

No anti-spam solution is 100% perfect, but SOS makes automation difficult: Millions of possible checkpoint combinations Randomized positioning per session Server-side timing validation (too fast = rejected) Behavioral analysis (Premium) No single pattern to exploit

Yes. The slider is optimized for touch interfaces with visual feedback. Touch offset correction ensures accurate control even on small screens. Tested on iOS, Android, and tablets.

Yes, Contact Form 7 is fully supported in the free version. Enable it in Settings → SOS Captcha → Integrations.

These are supported in the Premium version.

Yes, in the Premium version. SOS can protect: wp-login.php — blocks brute-force login attacks User registration form — prevents bot-generated accounts Lost-password form — stops password-reset email spam Enable these under Settings → SOS Captcha → Integrations.

Yes. You can customize: Gradient colors (start, middle, end) Label text Help text Verified text All text is translatable Premium users can also remove the badge for a fully white-label look.