security fix workflow

How to fix an expired SSL certificate

Resolve expired SSL certificates and prevent HTTPS trust warnings from hurting users and search visibility.

What this issue means

An expired SSL certificate causes browser warnings and can block users from reaching the site.

Why it matters

HTTPS is a baseline trust signal. Certificate failures hurt conversions, crawling, and user confidence.

Evidence to collect

Retest the final HTTPS URL and check whether browser-facing headers and assets are fixed together.

Start with the same URL in the linked CheckWebs tool, save the failing signal, apply the fix, then retest the final redirected URL. Avoid judging the fix from a cached screenshot or a different URL variant.

How to check it

1Run SSL Certificate Checker.
2Confirm expiry date, issuer, chain status, and hostname match.
3Check whether CDN and origin certificates differ.

How to fix it

1Renew the certificate or enable automatic renewal.
2Install the full certificate chain.
3Verify all hostnames used by the site are covered.

Platform-specific fixes

Vercel

Check domain configuration and DNS records.
Remove conflicting CAA records if certificate issuance fails.

Cloudflare

Check edge certificate status.
Ensure origin certificate mode matches your server setup.

Nginx

Renew with Certbot or your certificate provider.
Reload Nginx after updating certificate paths.

Validate the fix

1Re-run SSL Certificate Checker.
2Run Status Checker and Mixed Content Scanner.

FAQ

Can an expired certificate affect SEO?+

Yes. If users and crawlers cannot reliably access HTTPS pages, organic performance can suffer.

Loading CheckWebs…

security fix workflow

How to fix an expired SSL certificate

Resolve expired SSL certificates and prevent HTTPS trust warnings from hurting users and search visibility.

What this issue means

An expired SSL certificate causes browser warnings and can block users from reaching the site.

Why it matters

HTTPS is a baseline trust signal. Certificate failures hurt conversions, crawling, and user confidence.

Evidence to collect

Retest the final HTTPS URL and check whether browser-facing headers and assets are fixed together.

How to check it

1Run SSL Certificate Checker.
2Confirm expiry date, issuer, chain status, and hostname match.
3Check whether CDN and origin certificates differ.

How to fix it

1Renew the certificate or enable automatic renewal.
2Install the full certificate chain.
3Verify all hostnames used by the site are covered.

Platform-specific fixes

Vercel

Check domain configuration and DNS records.
Remove conflicting CAA records if certificate issuance fails.

Cloudflare

Check edge certificate status.
Ensure origin certificate mode matches your server setup.

Nginx

Renew with Certbot or your certificate provider.
Reload Nginx after updating certificate paths.

Validate the fix

1Re-run SSL Certificate Checker.
2Run Status Checker and Mixed Content Scanner.

FAQ

Can an expired certificate affect SEO?+

Yes. If users and crawlers cannot reliably access HTTPS pages, organic performance can suffer.