Free Website Security Checker — Scan Your Site in Seconds
Check your website’s security configuration for free. Get a clear report and practical instructions to fix common issues.
Free · No account required · Safe checks
Only scan websites you own or are authorized to assess.
How it works
- 01Enter your URL
- 02We check common security configurations
- 03Get a clear report
- 04Fix issues for free
- 05Re-scan
What we check
HTTPS
Encrypted connections and HTTP→HTTPS redirect behavior.
Security Headers
HSTS, CSP, X-Content-Type-Options, Referrer-Policy, and more.
TLS
Certificate validity, expiration, and hostname matching.
Cookies
Secure, HttpOnly, and SameSite flags on observed cookies.
Redirects
Redirect chains and final destination behavior.
security.txt
Whether researchers have a clear way to report issues to you.
What we don’t check
Scanlyio runs safe, non-destructive, externally observable checks only. We do not attempt to exploit vulnerabilities, brute-force credentials, probe your internal network, or access anything beyond what is publicly reachable at the URL you provide. This is not a substitute for a professional penetration test.
FAQ
- Is the website security checker free?
- Yes. The scanner and all remediation guidance are free to use.
- Do I need an account?
- No. There is no registration or login required to run a scan.
- Can I scan my business website?
- Yes, provided you own it or are authorized to assess it.
- Does the scanner find every vulnerability?
- No. It checks a defined set of externally observable security configurations and issues. It is not a penetration test.
- Does a 100/100 score mean my website is completely secure?
- No. No automated scan can guarantee that. It means the checks we run did not find issues.
- Do you store my website data?
- Scan reports are kept temporarily (currently 24 hours) so you can view and share them, then they are automatically deleted. We do not keep a permanent history of your scans.
- Can I scan someone else’s website?
- Only if you own it or have explicit authorization to assess it.
- How can I fix the issues?
- Every finding in your report includes plain-language remediation guidance.
- Can I scan my website again?
- Yes — scan as often as you’d like, within our fair-use rate limits.