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Flexible SSL for CloudFlare vs Client Certificate Authentication (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

Flexible SSL for CloudFlare

Flexible SSL for CloudFlare

4.8(51)

100K+ active installs

Free

Updated 3 months ago
View Flexible SSL for CloudFlare
VS
Client Certificate Authentication

Client Certificate Authentication

5(2)

10 active installs

Free

Updated 12 years ago
View Client Certificate Authentication

Quick Verdict

As of April 2026, Client Certificate Authentication has a higher user rating (5/5 from 2 reviews) while Flexible SSL for CloudFlare leads in active installations (100K+ vs 10). Both are free WordPress plugins. Flexible SSL for CloudFlare has accumulated 1.2M+ total downloads while Client Certificate Authentication has 3.2K+.

Detailed Comparison

Rating
4.8/5Flexible SSL for CloudFlare
►
Client Certificate Authentication5/5
Total Reviews
51Flexible SSL for CloudFlare
◄
Client Certificate Authentication2
Active Installs
100K+Flexible SSL for CloudFlare
◄
Client Certificate Authentication10
Total Downloads
1.2M+Flexible SSL for CloudFlare
◄
Client Certificate Authentication3.2K+
Support Resolution
N/AFlexible SSL for CloudFlare
Client Certificate AuthenticationN/A
Last Updated
3 months agoFlexible SSL for CloudFlare
◄
Client Certificate Authentication12 years ago
First Released
2014Flexible SSL for CloudFlare
Client Certificate Authentication2013
Age
12 yearsFlexible SSL for CloudFlare
Client Certificate Authentication13 years
WP Requires
3.2.0+Flexible SSL for CloudFlare
Client Certificate Authentication3.1+
PHP Requires
5.2+Flexible SSL for CloudFlare
Client Certificate Authenticationfalse+
Business Model
FreeFlexible SSL for CloudFlare
Client Certificate AuthenticationFree
Latest Version
1.3.1Flexible SSL for CloudFlare
Client Certificate Authentication1.0.2

Rating Breakdown

Flexible SSL for CloudFlare

4.8/5(51 reviews)
5
92%
4
4%
3
0%
2
0%
1
4%

Client Certificate Authentication

5/5(2 reviews)
5
100%
4
0%
3
0%
2
0%
1
0%

Recent Reviews

Flexible SSL for CloudFlare Reviews

by chufamily

Fantastic. Fixed my problem for many many years.

First time I am leaving a wordpress plugin review after my 10+ years experience using wordpress. For some reason, I cannot activate SSL on my own server and cannot use “Full” SSL setting at cloudflar

by rudsonalex

thanks!!

eu instalei meu wordpress pelo aapanel e esse plugin resolveu, obrigado!!

by cwrksr

CRAZY? but it works

I dont really understand the problem, because it should redirect loop the whole time, but it doesnt, only on some parts in backend and some problems with plugins. But anyway, this plugin is the sol

Client Certificate Authentication Reviews

No reviews yet

Frequently Asked Questions

Is Flexible SSL for CloudFlare or Client Certificate Authentication more popular?
Flexible SSL for CloudFlare has 100K+ active installations while Client Certificate Authentication has 10. Flexible SSL for CloudFlare is the more widely-used plugin as of April 2026.
Which has better ratings — Flexible SSL for CloudFlare or Client Certificate Authentication?
Flexible SSL for CloudFlare has a 4.8/5 rating from 51 reviews, while Client Certificate Authentication has a 5/5 rating from 2 reviews.
Are Flexible SSL for CloudFlare and Client Certificate Authentication free?
Flexible SSL for CloudFlare is free and Client Certificate Authentication is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Flexible SSL for CloudFlare or Client Certificate Authentication?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Flexible SSL for CloudFlare was last updated 3 months ago and Client Certificate Authentication was last updated 12 years ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.