Cartpauj Register Captcha vs SiteLock Security – WP Hardening, Login… (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Cartpauj Register Captcha
1.0K+ active installs
Free
SiteLock Security – WP Hardening, Login…
1.0K+ active installs
Free
Quick Verdict
As of April 2026, Cartpauj Register Captcha has a higher user rating (4.2/5 from 24 reviews) and leads in active installations (1.0K+ vs 1.0K+). Both are free WordPress plugins. Cartpauj Register Captcha has accumulated 38K+ total downloads while SiteLock Security – WP Hardening, Login… has 48K+.
Detailed Comparison
| Metric | Cartpauj Register Captcha | SiteLock Security – WP Hardening, Login… | |
|---|---|---|---|
| Rating | 4.2/5 | ◄ | 3.4/5 |
| Total Reviews | 24 | ◄ | 14 |
| Active Installs | 1.0K+ | 1.0K+ | |
| Total Downloads | 38K+ | ► | 48K+ |
| Support Resolution | N/A | N/A | |
| Last Updated | 10 months ago | ► | 1 month ago |
| First Released | 2011 | 2013 | |
| Age | 15 years | 13 years | |
| WP Requires | 6.0+ | 3.8+ | |
| PHP Requires | false+ | 8.0+ | |
| Business Model | Free | Free | |
| Latest Version | 2.0.1 | 5.1.0 |
Rating Breakdown
Cartpauj Register Captcha
SiteLock Security – WP Hardening, Login…
Download Trends
Over the past 30 days, Cartpauj Register Captcha averaged approximately 4 daily downloads while SiteLock Security – WP Hardening, Login… averaged 26.
Recent Reviews
Cartpauj Register Captcha Reviews
Doesn’t work
I think it used to work, however now it shows the error if you get the captcha wrong, but still registers the user, so it’s useless against spam registrations. I say it used to work, as my site didn’
Nice little plugin
Works as expected.
to jsem hledal!
spam bot registroval 2500 redaktorů 🙁
SiteLock Security – WP Hardening, Login… Reviews
SiteLock Security WordPress Plugin
The SiteLock Security WordPress plugin is a lightweight WordPress security tool aimed at giving site owners essential protections with minimal performance impact. It focuses on baseline hardening (e.g
SSL verification not working
Since the start of the service SiteLock is not able to connect to my (verified) domain and verify the SSL certificate. Support reactions are far from satisfying.
Bad product, worse customer support
They will show false positives for Google Analytics tag, then charge you to remove it, then send you an email saying they were wrong and it was a false positive and that they didn’t actually remove an
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Frequently Asked Questions
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.