How do I know if SSL renewal is working?

Check the renewal timer or cron job, run a safe dry-run where appropriate, verify certificate expiry, confirm the web server reloads, and monitor expiry before users see warnings.

What commonly breaks Let's Encrypt renewal?

Common causes include blocked port 80, changed DNS records, wrong webroot, CDN/proxy challenges, broken Nginx config, expired credentials for DNS plugins, or missing reload hooks.

Should SSL renewal be documented in handover?

Yes. Document domains, certificate paths, renewal method, timer or cron, DNS challenge credentials if any, test command, reload behavior, and escalation owner.

Let's Encrypt SSL Renewal Checklist

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LetsEncrypt SSL certificate
SSL certificate renewal
SSL renewal
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Nginx SSL

SSL renewal checklist

SSL renewal is boring only when it is tested before expiry.

Let's Encrypt and Certbot can automate certificate renewal, but production teams still need challenge readiness, web server reloads, expiry monitoring, dry-run checks, and a handover record.

ACMEChallenge

RenewAutomation

AlertExpiry monitor

An SSL certificate for a website is not a one-time launch task. If renewal fails, users see browser warnings, payment flows lose trust, API clients can fail, and SEO crawling can be affected.

Official source note: Certbot documentation explains renewal behavior and includes dry-run usage for testing renewal configuration: Certbot user guide.

SSL renewal loop

01Confirm challenge path and DNS02Renew certificate and reload web server03Monitor expiry and document owner

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SSL renewal is boring only when it is tested before expiry.

SSL renewal loop

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