55Fair

steampowered.com

scanned 4/9/2026 in 0.7s

SSL

Headers

✓

Valid certificate from Let's Encrypt

Expires: 5/25/2026 (46 days)

✓

Protocol: TLSv1.3

Key: 2048 bits

SANs: aperturescience.com, community.steam-api.com, counter-strike.net, dayofdefeat.com, forums.l4d.com, half-life.com, half-life2.com, help.steampowered.com, l4d.com, learnwithportals.com +38 more

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!SSL certificate expires in 46 days
!No HSTS header — browsers won't enforce HTTPS
!Security headers grade F — most headers missing

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