HSTS vs Slider Captcha
Head-to-head usage across the sites we track.
Top sites by authority
HSTS · Slider Captcha · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
279
0
Open Page Rank 8+
5,906
2
Open Page Rank 7+
30,134
9
Open Page Rank 6+
64,486
21
Open Page Rank 5+
120,212
34
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
HSTS · Slider Captcha · share of sites in each country using one or the other
United States
1,338,613
99
United Kingdom
411,483
64
India
404,554
75
Germany
400,616
56
France
326,363
52
Brazil
292,843
33
Canada
290,713
87
Italy
229,495
35
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | HSTS | Slider Captcha |
|---|---|---|
| LCP | 1.7 s | 2.2 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 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.
Sites that switched
Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.
Slider Captcha to HSTS
| Domain | When |
|---|---|
| vintagesummerfashion.com | Mar 2026 |
| zname.bg | Jan 2026 |