What is SSL Labs?
The SSL Labs Server Test by Qualys analyzes the HTTPS configuration of any public web server. It checks the certificate, supported TLS versions, cipher suites, and known vulnerabilities.
The result is a grade from A+ to F with a detailed report, making it the standard way to confirm that a site's HTTPS setup is secure.
Key features
- Grade from A+ to F
- Certificate chain and expiry details
- Protocol and cipher suite analysis
- Checks for known TLS vulnerabilities
Pros
- Very thorough
- Trusted industry standard
- Clear grading
Cons
- A full test takes a minute or two
- Technical report can be hard to read
Best for
Auditing a website's HTTPS setupChecking a new certificateFixing security warnings
Ratings and reviews
No reviews yet. Community ratings and reviews are coming soon, so you can share how SSL Labs worked for you.
SSL Labs FAQ
Is SSL Labs free?
SSL Labs is free with no account.
Do I need an account to use SSL Labs?
No. SSL Labs works without signing up, so you can open ssllabs.com and start using it right away.
What are some alternatives to SSL Labs?
Similar free tools that also work without an account include Regex101, CyberChef, Crontab Guru, Transform, JSON Crack and Carbon.