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react.dev

scanned 4/9/2026 in 0.4s

SSL

Headers

✓

Valid certificate from Let's Encrypt

Expires: 5/13/2026 (34 days)

✓

Protocol: TLSv1.3

Key: 2048 bits

SANs: react.dev

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!SSL certificate expires in 34 days
!No DMARC record — your domain can be spoofed
!Security headers grade F — most headers missing

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