Really Simple SSL & Security vs Slider Captcha
Head-to-head usage across the sites we track.
Top sites by authority
Really Simple SSL & Security · Slider Captcha · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
26
0
Open Page Rank 8+
417
2
Open Page Rank 7+
1,316
9
Open Page Rank 6+
2,673
21
Open Page Rank 5+
5,436
34
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Really Simple SSL & Security · Slider Captcha · share of sites in each country using one or the other
United States
80,589
99
Spain
43,010
63
Brazil
41,568
33
Japan
35,636
47
France
33,645
52
Italy
32,129
35
United Kingdom
29,199
64
Germany
27,743
56
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Really Simple SSL & Security | Slider Captcha |
|---|---|---|
| LCP | 2.4 s | 2.2 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 1400 ms | 800 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.
All Really Simple SSL & Security sites · All Slider Captcha sites