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+
282
1
Open Page Rank 8+
5,897
2
Open Page Rank 7+
30,078
9
Open Page Rank 6+
64,413
22
Open Page Rank 5+
119,881
36
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
1,348,640
98
United Kingdom
403,486
66
Germany
403,347
52
India
400,388
76
France
317,870
49
Brazil
290,538
33
Canada
289,821
84
Italy
219,709
37
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 | 750 ms |
Median site's p75 values from the Chrome UX Report, Aug 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 |