Websites using X-Clacks-Overhead
2,931 of 6,234,877 ranked sites (<0.1%) run X-Clacks-Overhead, detected on public homepages. Data as of Sep 30, 2026.
2,931Sites
<0.1%Share of ranked sites
By rank tier
| Tier | Sites | Share within tier |
|---|---|---|
| Top 1,000 | 0 | <0.1% |
| Top 10,000 | 5 | 0.1% |
| Top 100,000 | 12 | <0.1% |
| Top 1,000,000 | 65 | <0.1% |
| All ranked | 2,931 | <0.1% |
Top 100 sites using X-Clacks-Overhead