DNS & domain lookup

SSL Expiry Monitor

Check exactly how many days until a domain's SSL certificate expires, over a real connection, with clear renewal thresholds. Free and live.

Monitor SSL expiry

Enter a domain to see exactly how long its certificate is valid for.

What this expiry monitor does

Opens a real TLS connection to read the certificate
Shows the exact expiry date and days remaining
Colour-codes urgency with a health score
Warns at 30 days and alerts under 14
Flags certificates that have already expired
Shows the issuer for quick renewal

Common use cases

  1. 1Avoiding an outage from an expired certificate
  2. 2Spot-checking expiry across your domains
  3. 3Confirming auto-renewal actually renewed
  4. 4Setting a reminder window for manual renewal
  5. 5Auditing certificates before a busy period
  6. 6Verifying a newly issued certificate's validity

Related tools

SSL Certificate CheckerSSL chain validatorCertificate transparency searchDomain Expiration CheckerDomain Status Code CheckerDNS Health Checker

About SSL certificate expiry

SSL/TLS certificates are issued for a fixed period — often 90 days for free certificates like Let's Encrypt. When one expires, browsers block the site with a full-page security warning, taking your website and often your APIs offline until you renew.

This monitor connects to your server, reads the real expiry date, and shows how long is left with clear urgency thresholds. The safest approach is automated renewal; use this tool to confirm it is working and to catch anything that slips through.

More Free Tools Where This Came From

This utility is one of dozens of free, no-login tools for DNS, email, SEO and developers — all instant and private.

See All ToolsTalk to Our Team

HostCloud.in  ·  Pune, India  ·  Serving 34,987+ Websites Since 2020

FREQUENTLY ASKED QUESTIONS

Got Questions? We Have Answers.

How does the expiry monitor work?

It connects to your domain, reads the certificate's expiry date, and shows the days remaining with colour-coded urgency.

When should I renew an SSL certificate?

Before it expires, ideally automatically. The tool warns at 30 days and alerts under 14, but automated renewal (e.g. Let's Encrypt) is best.

What happens if a certificate expires?

Browsers block the site with a full-page security warning, effectively taking your website and APIs offline until you renew.

How long are certificates valid?

Often 90 days for free certificates and up to about a year for paid ones. Shorter lifetimes are becoming the norm, making automation important.

Can I check several domains?

Run each domain in turn. For continuous monitoring, automate renewal and use this tool to spot-check that it is working.

Is the check live?

Yes. It reads the real expiry date via a TLS handshake at the moment you run it.