SSL Certificate Checker
Check your website's SSL certificate validity, expiry date, and TLS configuration. Instant security grade.
Why SSL Certificates Matter
Encryption
SSL encrypts all data between your users and your server, protecting passwords and sensitive information.
Trust
The padlock icon shows visitors your site is secure. Without it, browsers display scary warnings.
SEO
Google uses HTTPS as a ranking factor. Sites without SSL are penalized in search results.
Frequently Asked Questions
What is an SSL certificate?
An SSL (Secure Sockets Layer) certificate encrypts data between your website and its visitors. It's what puts the padlock icon in the browser and enables HTTPS. Without it, data like passwords and credit cards are sent in plain text.
Why does my SSL certificate grade matter?
Your SSL grade reflects the security of your HTTPS configuration. A poor grade (C or below) means your site may be vulnerable to attacks. An A or A+ grade means you're using modern, secure encryption.
What happens when my SSL certificate expires?
When your certificate expires, browsers will show a scary warning page to visitors, and many won't proceed to your site. This can kill your traffic and conversions overnight. Set up expiry monitoring to avoid this.
What is TLS 1.3?
TLS 1.3 is the latest version of the TLS protocol (the modern name for SSL). It's faster and more secure than older versions. Most modern hosting platforms support it by default.
Do I need to pay for an SSL certificate?
No! Let's Encrypt provides free SSL certificates, and most hosting platforms (Vercel, Netlify, Cloudflare) include free SSL automatically. There's no reason to run a site without HTTPS in 2025.
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Secure Your Entire App
SSL is just the beginning. VAS scans your application for exposed API keys, database vulnerabilities, security headers, and more.
Run Full Security Scan