SSL Checker
Free online SSL Checker. Simple, fast, and secure tool running in your browser.
What is the SSL Checker?
The SSL Checker is a crucial security tool that allows you to instantly verify the SSL/TLS certificate of any website. An SSL certificate ensures that the connection between a user's browser and the website is encrypted and secure (indicated by the "HTTPS" in the URL and the padlock icon).
With our free tool, you can check if a certificate is correctly installed, valid, trusted by browsers, and exactly when it is going to expire. It helps web administrators quickly diagnose installation issues, verify certificate chains, and prevent embarrassing and costly downtime caused by expired certificates.
How to Use the SSL Checker
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1
Enter the Domain Name
Type the URL of the website you want to check (e.g.,
google.comorwww.yourdomain.com) into the search field. -
2
Run the Test
Click the "Check SSL" button. Our tool will immediately reach out to the server and analyze its SSL configuration.
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3
Review the Certificate Details
Read the report to see the issuer (like Let's Encrypt or DigiCert), the validity period (start and expiration dates), and whether the chain of trust is intact.
Why is checking SSL Important?
- ✓ Avoid Browser Warnings: An improperly installed SSL triggers a scary "Your connection is not private" error, scaring away visitors.
- ✓ SEO Benefits: Google uses HTTPS as a ranking signal. A valid SSL certificate is mandatory for good SEO.
- ✓ Track Expirations: Check how many days are left until renewal so your site never goes down unexpectedly.
Frequently Asked Questions
Why does my SSL check say "Chain incomplete"?
This usually means that while your main certificate is installed, the intermediate certificates (which link yours to a trusted root authority) are missing from your server configuration.
Can I check an SSL certificate on a local network?
Our online tool relies on making an external web request to the domain. If the server is not publicly accessible from the internet, the tool will not be able to reach it.