57Fair

developer.mozilla.org

scanned 4/9/2026 in 1.6s

SSL

Headers

✓

Valid certificate from Let's Encrypt

Expires: 6/25/2026 (77 days)

✓

Protocol: TLSv1.3

Key: 2048 bits

SANs: *.mdnplay.dev, developer.mozilla.org, mdnplay.dev

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!SSL certificate expires in 77 days
!No DMARC record — your domain can be spoofed
!No HSTS header — browsers won't enforce HTTPS

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