openai.com
B76/ 100
vs
anthropic.com
B78/ 100
Winner
Check-by-check breakdown
| Check | openai.com | anthropic.com | Winner |
|---|---|---|---|
| SSL / TLS | A+100 / 100 | A+100 / 100 | Tie |
| Security Headers | D35 / 100 | F0 / 100 | openai.com |
| CORS Policy | A+100 / 100 | A+100 / 100 | Tie |
| Cookie Security | D49 / 100 | A+96 / 100 | anthropic.com |
| DNS Records | A+98 / 100 | A+96 / 100 | openai.com |