About HTTPChecker
65 free tools to analyze, debug, and secure your website — from HTTP status checks and SEO audits to security testing and developer utilities.
Our Mission
HTTPChecker was built for developers, SEO professionals, and webmasters who need fast, reliable answers about how their websites work. Whether you're debugging a redirect loop, auditing on-page SEO, checking security headers, testing page speed, or formatting JSON — we have a tool for it.
What started as a simple HTTP status checker has grown into a comprehensive suite of 65 tools spanning 8 categories: HTTP analysis, DNS and domain lookups, SEO auditing, security testing, performance monitoring, developer utilities, encoding tools, and content analysis.
Every tool is free to use with no account required. Your data is processed in real-time and never stored, cached, or shared with anyone.
Why HTTPChecker?
Lightning Fast
All tools deliver instant results. Server-side checks run with optimized concurrent requests so you get answers in milliseconds.
Privacy First
We never store your URLs, results, or personal data. Every check is processed in real-time and immediately discarded.
Developer Friendly
Clean results, custom User-Agent support, exportable data, and keyboard shortcuts. Built by developers, for developers.
100% Free
All 65 tools are completely free. No account required, no paywalled features, no hidden limits.
65 Tools Across 8 Categories
Everything you need to inspect, debug, and optimize your web presence
Check status codes, redirect chains, response headers, SSL certificates, HTTP/2 support, CORS, ping, and traceroute.
Look up DNS records, WHOIS data, MX/NS records, domain age, hosting details, ASN info, reverse IP, and email authentication.
Audit meta tags, headings, canonical URLs, schema markup, robots.txt, sitemaps, keyword density, internal/external links, and more.
Evaluate security headers, HSTS, TLS versions, CSP policies, cookies, mixed content, safe browsing, open ports, and subdomains.
Test page speed with Core Web Vitals, check GZIP/Brotli compression, detect CMS technology, and monitor uptime.
Format JSON, test regex, validate HTML, minify CSS/JS, parse cron expressions, decode JWT tokens, and generate hashes.
Encode/decode URLs and strings, generate secure passwords, convert timestamps, and work with multiple encoding formats.
Count words, parse User-Agent strings, scan URLs for malware, and browse the complete HTTP status codes reference.
Ready to Get Started?
Start analyzing your website right now — check status codes, audit SEO, test security, and more. Free, instant, no sign-up.