Free Online Security,
SEO & Privacy Tools
HTTP headers, SSL checkers, meta tag analyzers, link scanners and more — no signup, always free.
Tools
4 toolsRedirect Checker
Trace the full redirect chain for any URL. See every hop, status code, and final destination.
Robots.txt Analyzer
Fetch and analyze any site's robots.txt. See which paths are allowed or blocked for crawlers.
Meta Tag Analyzer
Extract and grade a page's meta tags, Open Graph, and Twitter Card data for SEO.
Sitemap Checker
Verify if a website has a valid XML sitemap. Analyze URLs, check for issues, and see last modified dates.
From the Blog
View all →What Are HTTP Security Headers and Why Do They Matter?
Learn about the 7 essential HTTP security headers every website should have — Content-Security-Policy, HSTS, X-Frame-Options, and more — and how to check yours.
Browser Fingerprinting: What It Is and How to Stop It
Your browser reveals more than you think. Learn how fingerprinting works, what data is collected, and how to protect yourself on Firefox, Brave, Chrome, and Edge.
SSL Certificates Explained: How to Check If a Site Is Secure
Everything you need to know about SSL/TLS certificates — what they are, how to verify them, common errors, and why HTTPS matters for SEO and security.