SSL Certificate Checker

What is SSL Certificate Checker?

SSL Certificate Checker lets you verify if a website has a valid security certificate. Just enter any domain name and see its certificate status, expiry date, and security details in seconds. No technical knowledge needed.

Why Would You Need to Check SSL Certificates?

Here are common situations where checking SSL certificates comes in handy:

• Website owners: Make sure your certificate is not about to expire and cause browser warnings
• Online shoppers: Verify that a shopping site is secure before entering your credit card
• IT administrators: Monitor multiple domains and catch expiring certificates before they cause downtime
• Web developers: Debug SSL issues and verify certificate chain is properly configured

How to Check SSL Certificates - Step by Step

1. Enter the domain: Type any domain name like google.com or your-website.com in the input box
2. Click Check: Hit the green Check button and wait a few seconds
3. Review the results: See the certificate status, expiry date, issuer, and security details
4. Check the warnings: If the certificate is expiring soon, you will see a yellow or red warning

Key Features

• Instant status check: See if a certificate is valid, expiring, or already expired at a glance
• Expiry countdown: Know exactly how many days until the certificate expires
• Issuer details: See which Certificate Authority issued the certificate
• Key strength indicator: Check if the encryption is strong enough (2048-bit or higher)
• Domain coverage: View all domains covered by the certificate (SANs)
• Certificate chain: Inspect the full chain of trust from root to leaf

Tips for Best Results

• Check your websites at least once a month to catch expiring certificates early
• Set a calendar reminder 30 days before your certificate expires
• Use certificates with 2048-bit keys or stronger for better security
• Make sure your certificate covers all subdomains you use (check the SANs list)

Frequently Asked Questions

What does a green status mean?

Green means your certificate is valid and not expiring anytime soon. Your visitors will see the secure padlock icon in their browser.

What should I do if my certificate is expiring?

Contact your hosting provider or certificate authority to renew it. Most providers send reminder emails, but it is good to check manually too.

Can I check any website?

Yes, you can check any website that uses HTTPS. Just enter the domain name without the https:// part.

Is this tool free?

Yes, completely free with no registration or limits. Check as many domains as you need.