SSL / HTTPS Checker
Check if your website uses HTTPS and has HSTS enabled. Both are trust signals for AI and Google.
Free. No signup required.
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Why this matters
Baseline trust signal
HTTPS is the minimum requirement. Without it, browsers show warnings, Google penalizes you, and AI won't recommend you.
HSTS prevents attacks
Without HSTS, users can be tricked into loading HTTP versions. One header prevents this permanently.
AI checks trust first
Before recommending your product, AI verifies basic trust signals. HTTPS and HSTS are the first things checked.
How it works
Enter your website URL
We check HTTPS configuration and HSTS header
See pass/fail for both with fix instructions
Frequently Asked Questions
How do I check my SSL certificate?
Enter your URL in our SSL Checker above. We verify if your site uses HTTPS and if HSTS (Strict-Transport-Security) is configured. Both are essential trust signals for Google and AI assistants.
What happens when SSL certificate expires?
Browsers show a security warning and block access. AI crawlers also refuse to access sites with expired certificates. Your site becomes invisible to both users and AI until the certificate is renewed.
What is the difference between SSL and TLS?
TLS (Transport Layer Security) is the modern successor to SSL. When people say 'SSL certificate,' they usually mean a TLS certificate. The technology has evolved, but the name stuck. Both ensure encrypted connections.
Does HTTPS affect AI visibility?
Yes — HTTPS is a baseline trust signal. AI platforms deprioritize non-HTTPS sites. Google confirmed HTTPS as a ranking factor. Without it, you lose both search ranking and AI recommendation potential.
How do I fix missing HSTS?
Add this header to your server response: Strict-Transport-Security: max-age=31536000; includeSubDomains. In Vercel, add it to vercel.json headers. In Nginx, use add_header. This forces HTTPS and prevents downgrade attacks.
Related Free Tools
Want the complete picture?
Run a full AI visibility audit — 25+ signals, fix roadmap, and AI-generated files.