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+
284
1
Open Page Rank 8+
5,894
4
Open Page Rank 7+
30,000
11
Open Page Rank 6+
64,348
25
Open Page Rank 5+
119,742
37
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
1,467,206
120
United Kingdom
450,618
78
Germany
441,210
64
India
429,462
92
France
366,415
65
Canada
324,872
96
Brazil
303,175
41
Italy
243,977
43
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 | 700 ms | 800 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.
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 |