Index · Cert expiry · Fastest sites · Free tools · API
11 popular dev sites, ranked by security-header score. Live data, built 2026-11-01.
| # | Site | Headers | Score | Cert days | Avail | ms |
|---|---|---|---|---|---|---|
| 1 | replit.com | A | 100 | 38 | 100% | 40.8 |
| 2 | codepen.io | A | 100 | 38 | 100% | 35.2 |
| 3 | github.com | B | 83 | 87 | 100% | 66.8 |
| 4 | stackoverflow.com | B | 83 | 71 | 100% | 55.0 |
| 5 | bitbucket.org | C | 67 | 52 | 100% | 231.2 |
| 6 | jsfiddle.net | C | 67 | 50 | 100% | 181.4 |
| 7 | codeberg.org | C | 50 | 38 | 100% | 486.2 |
| 8 | sourcegraph.com | D | 33 | 38 | 100% | 148.0 |
| 9 | gitea.com | D | 33 | 47 | 100% | 202.6 |
| 10 | gitlab.com | F | 17 | 192 | 100% | 233.0 |
| 11 | codesandbox.io | F | 0 | 82 | 100% | 232.3 |