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My website’s SSL certificate has expired. What should I check before renewing it?
Check the expiry date and the domains covered by the certificate in your browser. Both the www and non-www addresses need coverage if you use them. If you have a CDN or proxy, check the certificate shown to visitors separately from the one installed on your hosting server.
Identify who manages certificate issuance and whether automatic renewal is configured. Review any validation errors: incorrect DNS records or blocked HTTP validation can prevent renewal, depending on the method used.
After renewal, check that the certificate and intermediate chain are installed correctly. Test the addresses your website uses again. Never send the private key by email or advise visitors to bypass browser warnings.
