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The SSL Checker is a free online tool that helps you quickly verify the status, validity, and configuration of your website’s SSL/TLS certificate. In today’s digital environment, having an active and secure HTTPS connection is not just about trust — it directly impacts your SEO, user experience, and browser compatibility.
With this tool, you can instantly detect issues with your SSL certificate, including:
Incorrect installation
Certificate expiration
Mismatched domain names
Invalid certificate chains
You just enter your domain name, and the tool checks your website's SSL setup in real time.
Google officially announced that HTTPS is a ranking signal. If your website does not have a valid SSL certificate:
Your site may show "Not Secure" warnings in browsers
You may lose rankings in search engines
Users are less likely to trust or stay on your site
A valid SSL certificate:
Secures data transmission
Boosts trust and credibility
Enhances SEO performance
Helps your site pass Core Web Vitals & HTTPS audits
Real-time SSL status verification
Displays SSL issuer, type, and expiry date
Supports all domain types (www, subdomains, etc.)
Identifies HTTPS redirects and chain errors
No login required, 100% free
Q1. What is SSL and why does it matter?
SSL (Secure Sockets Layer) is a protocol that encrypts data between the user’s browser and your website. It ensures secure, private communication and is critical for SEO and trust.
Q2. How do I know if my SSL is working?
Just enter your domain in this SSL Checker. It will show you if the certificate is valid, who issued it, and when it expires.
Q3. Does an expired SSL affect SEO?
Yes. An expired certificate makes your site insecure, which leads to browser warnings and potential drops in search rankings.
Q4. Can I use this tool for subdomains or staging sites?
Yes. The tool works with all domain levels, including www, subdomains like shop.example.com, and staging environments.
Q5. Do I need technical knowledge to understand the results?
Not at all. The tool presents easy-to-understand information, and flags common issues like missing chains or invalid domains.
Website owners and bloggers
Developers managing multiple domains
SEO agencies ensuring HTTPS compliance
Hosting companies providing support
Anyone verifying certificate expiration or configuration
