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Certificate Hostname & Chain

Certificates must match your domain name and include all intermediate certificates for validation.

Why It Matters

Hostname mismatches cause security warnings. Missing intermediate certificates cause validation failures on some devices, breaking your site for those users.

How We Check

We verify the certificate hostname matches your domain and that the complete certificate chain is served.

How to Fix

Ensure your certificate covers your exact domain (and www if needed). Configure your server to send intermediate certificates. Use SSL Labs to verify.

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Related Tool

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