SSL Certificate Checker
Check SSL certificate status and validity for any website.
Enter Domain to Check SSL
What is an SSL Certificate?
An SSL certificate encrypts data between a visitor’s browser and your website, keeping sensitive information safe. Websites with SSL use HTTPS, which is a trust signal for users and search engines.
Our SSL Certificate Checker verifies if a site has a valid certificate, whether it’s correctly installed, and if your connection is secure.
Why SSL Matters for SEO
🔒 Security & Trust
HTTPS protects user data and builds confidence with visitors.
📈 Ranking Signal
Search engines favor secure websites, helping you rank higher.
🛡️ Browser Warnings
Avoid “Not Secure” warnings that hurt conversions and trust.
⚡ Better UX
Secure connections support modern browser features and performance.
Common SSL Issues We Detect
Expired Certificate
Renew your certificate before expiration to avoid downtime and warnings.
Hostname Mismatch
Make sure the certificate covers your domain and subdomains.
Incomplete Chain
Install intermediate certificates to ensure a full trust chain.
Mixed Content
Serve all assets over HTTPS to keep the secure padlock.
How to Fix SSL Problems
✅ Renew & Install
Renew your SSL certificate and install it correctly on your server.
✅ Add Intermediates
Include intermediate certificates provided by your CA.
✅ Force HTTPS
Redirect all HTTP traffic to HTTPS and update internal links.
✅ Enable HSTS
Use HSTS for stronger security and faster HTTPS adoption.
Frequently Asked Questions
What is an SSL certificate?
An SSL (Secure Sockets Layer) certificate is a digital certificate that encrypts data transmitted between a user's browser and a web server. It ensures sensitive information like passwords, credit card numbers, and personal data cannot be intercepted by third parties.
What is the difference between SSL and TLS?
TLS (Transport Layer Security) is the successor to SSL. While people still say "SSL," modern websites actually use TLS 1.2 or TLS 1.3. The terms are often used interchangeably, but TLS is the current, more secure protocol.
How do I know if a website has SSL?
Look for the padlock icon in your browser's address bar and "https://" at the beginning of the URL. You can also use CutUrls.com's SSL Checker for detailed certificate information including issuer, expiration date, and chain validity.
What happens when an SSL certificate expires?
Browsers will display a security warning page that blocks users from accessing your site. This can dramatically reduce traffic, hurt SEO rankings, and damage user trust. Most visitors will leave immediately when they see an SSL error.
Are free SSL certificates (Let's Encrypt) safe?
Yes, free SSL certificates from Let's Encrypt provide the same level of encryption as paid certificates. The main differences are: free certificates are Domain Validated (DV) only, have 90-day validity, and don't include warranty or extended validation (EV) features.
What is a certificate chain?
A certificate chain (or chain of trust) connects your SSL certificate to a trusted root Certificate Authority (CA) through intermediate certificates. If any link in the chain is missing or invalid, browsers won't trust your certificate.
What is HSTS and should I enable it?
HSTS (HTTP Strict Transport Security) tells browsers to always use HTTPS for your domain. Once enabled, browsers will never attempt an HTTP connection, preventing downgrade attacks. It's recommended for all HTTPS-enabled websites.
Verify Your SSL Certificate Now
Use CutUrls.com's free SSL Checker to verify certificate validity, expiration, and security for any website. No signup required.