RankMath SEO vs Really Simple CAPTCHA
Head-to-head usage across the sites we track.
Top sites by authority
RankMath SEO · Really Simple CAPTCHA · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
23
0
Open Page Rank 8+
344
0
Open Page Rank 7+
1,429
1
Open Page Rank 6+
3,203
1
Open Page Rank 5+
6,653
3
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
RankMath SEO · Really Simple CAPTCHA · share of sites in each country using one or the other
United States
125,647
7
India
80,255
2
Germany
54,659
11
United Kingdom
43,847
3
Spain
41,448
6
France
41,204
5
Brazil
36,283
2
Italy
36,163
3
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | RankMath SEO | Really Simple CAPTCHA |
|---|---|---|
| LCP | 2.3 s | 2.2 s |
| INP | 75 ms | 50 ms |
| CLS | 0 | 0 |
| TTFB | 1200 ms | 1200 ms |
Median site's p75 values from the Chrome UX Report, Jun 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.