Free tools
Free security tools for your business
Every tool runs a real check against public configuration and explains the result in plain English.
Security Check
Enter your domain for a free security check covering DNS, email authentication, HTTPS and security headers, with a plain-English score and fix steps.
Website Security Checker
Check whether your website uses HTTPS properly, sends security headers, sets safe cookies and avoids mixed content. Free, no sign-up.
Domain Security Checker
Review your domain’s DNS health: nameserver redundancy, CAA, DNSSEC and dangling CNAME indicators. Free domain security check.
Email Security Checker
Check whether your domain can be spoofed. Free SPF, DKIM and DMARC check with plain-English results and a safe DNS fix.
DMARC Checker
Look up and validate your DMARC record, see whether it is enforcing, and get a safe starter record to publish. Free tool.
SPF Checker
Validate your SPF record: syntax, multiple-record errors, risky +all endings and DNS-lookup limit indicators. Free SPF check.
DKIM Checker
Look for DKIM public keys at commonly used selectors and check key size indicators. Learn what a “not found” result really means.
SSL/TLS Certificate Checker
Check your SSL/TLS certificate: trusted or not, days until expiry, issuer and the TLS version your server negotiates. Free.
HTTPS Checker
Check that your website loads over HTTPS and that plain HTTP redirects to it. Free HTTPS check.
Security Headers Checker
Check your site’s HTTP security headers (HSTS, CSP, X-Content-Type-Options, Referrer-Policy, Permissions-Policy) and get values to add.
security.txt Checker
Check whether your site publishes /.well-known/security.txt so researchers can report problems, and get a ready-to-use file.
DNSSEC Checker
Check whether a DS record exists for your domain, which indicates DNSSEC is enabled. Free DNSSEC check.
Email Spoofing Risk Checker
See whether your domain’s email settings let attackers send mail as you. Free spoofing-risk check based on SPF and DMARC.
Website Technology Checker
Detect publicly visible technologies such as WordPress, Shopify, Next.js, Cloudflare and server software, and see whether versions are disclosed.
Security Score Checker
Get your PixelPrivate Security Score (0–100) with a transparent breakdown by domain, email, website, TLS and configuration.
Brand Protection Checker
Find registered lookalike domains that may be impersonating your business, with evidence-based risk and confidence levels. Free check.
Lookalike Domain Checker
Check which typo and lookalike variants of your domain are registered. Free lookalike domain checker with risk ratings.
Website tracker scanner
Detect advertising pixels and analytics scripts on a web page (privacy tool).
EXIF metadata cleaner
Strip location and device metadata from photos before sharing (privacy tool).
Check your business security free
No credit card. Results in about 30 seconds.
Run Free Security Check