HTTP Headers: crossref.org
Security score: 40/100
🛡️ Security Headers
| Header | Status |
|---|---|
| Strict-Transport-Security | ❌ Missing |
| Content-Security-Policy | ❌ Missing |
| X-Content-Type-Options | ✅ Present |
| X-Frame-Options | ✅ Present |
| X-XSS-Protection | ❌ Missing |
📋 All Response Headers
content-encoding content-type date etag last-modified permissions-policy server vary
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