How to Check SSL Certificate Expiration Date
The fastest way to check an SSL certificate's expiration date — just enter your domain below.
1. Check the expiry online (easiest)
Type your domain into the box above and press Check SSL. You will immediately see the exact expiration date and the number of days remaining — no tools to install.
2. Check the expiry in your browser
Visit the site, click the padlock icon in the address bar, then choose "Connection is secure" → "Certificate". The certificate viewer shows the "Valid to" date.
3. Check the expiry with OpenSSL
On the command line, run: openssl s_client -connect example.com:443 -servername example.com 2>/dev/null | openssl x509 -noout -dates. The notAfter value is the expiration date.
Frequently asked questions
What is the easiest way to check SSL expiry?
Use the checker above — enter a domain and you instantly get the expiry date and days remaining.
Can I be alerted automatically instead of checking manually?
Yes. Create a free account to monitor your domains and receive email alerts before they expire.
Monitor your certificates automatically
Create a free account to monitor up to 100 domains and get email alerts before any certificate expires.
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