Website Tools

Website analysis and testing tools. Check speed, mobile-friendliness, SSL certificates, and accessibility.

28 free tools available

Free Website Speed Test

Analyze website page load time, performance metrics, and optimization opportunities. Free, fast, and works entirely in your browser with no sign-up required.

Free Mobile Friendly Test

Check if your site is optimized for mobile devices. Free, fast, and works entirely in your browser with no sign-up required.

Free SSL Checker Online

Verify SSL certificate validity, check expiration, and review security configuration. Free, fast, and works entirely in your browser with no sign-up required.

Free HTTP Headers Viewer

Inspect and analyze HTTP response headers from any URL for security and caching review. Free, fast, and works entirely in your browser with no sign-up required.

Free URL Redirect Checker

Trace complete URL redirect chains and identify each hop with its HTTP status code. Free, fast, and works entirely in your browser with no sign-up required.

Free Website Uptime Checker

Instantly check if any website is up or down and monitor its availability status. Free, fast, and works entirely in your browser with no sign-up required.

Free Favicon Generator Tool

Generate favicons in multiple sizes from an image. Free, fast, and works entirely in your browser with no sign-up required.

Free Sitemap Validator Online

Validate your XML sitemap for errors and ensure it follows search engine guidelines. Free, fast, and works entirely in your browser with no sign-up required.

Free Meta Tag Extractor

Extract and review all meta tags from any webpage for SEO and social media analysis. Free, fast, and works entirely in your browser with no sign-up required.

Free Website Screenshot Tool

Capture full-page or viewport screenshots of any webpage for design review and testing. Free, fast, and works entirely in your browser with no sign-up required.

Free Accessibility Checker

Check website accessibility compliance with WCAG standards and get actionable fix suggestions. Free, fast, and works entirely in your browser with no sign-up required.

Security Headers Checker

Paste HTTP response headers to analyze security config with grading, CSP/HSTS/cookie checks, and cross-origin policy analysis.

Tech Stack Detector

Detect frameworks, analytics, CDN, and other technologies from pasted HTML source code. Identifies 33+ technologies across 4 categories.

Content Security Policy Builder

Visually build CSP headers with preset templates, per-directive controls, validation warnings, strictness scoring, and report-only mode.

Link Preview Generator

Preview how your links appear on Twitter/X, Facebook, LinkedIn, Discord, Slack, iMessage, and WhatsApp. Generate optimized OG and Twitter Card meta tags.

Nginx Config Generator

Generate production-ready Nginx configs with SSL, reverse proxy, PHP-FPM, gzip, caching, security headers, rate limiting, and redirects. 7 presets included.

GZIP/Brotli Compression Checker

Paste HTTP response headers to check gzip, Brotli, deflate, or zstd compression. Analyze compressibility, estimated savings, and get server config guides.

Apache Config Generator

Generate Apache VirtualHost and .htaccess configs with SSL, reverse proxy, PHP-FPM, mod_deflate, security headers, rewrites, and directory options. 6 presets.

Cookie Scanner / Analyzer

Paste Set-Cookie headers or document.cookie to analyze attributes, security flags, categories, GDPR compliance, and generate consent banner templates.

Free Visual Cron Expression Generator

Build cron expressions visually. See human-readable description and next run times. Free, fast, and works entirely in your browser with no sign-up required.

Free Cache-Control Header Analyzer

Parse and understand Cache-Control headers. Visual builder and best practice recommendations. Free, fast, and works entirely in your browser with no sign-up required.

Free Favicon Checker & Analyzer

Analyze favicon declarations in HTML head. Check for missing sizes and best practices. Free, fast, and works entirely in your browser with no sign-up required.

Free Web Font Detector

Extract all fonts used in HTML or CSS. Identify Google Fonts, system fonts, and web fonts. Free, fast, and works entirely in your browser with no sign-up required.

Free .htaccess Rule Tester

Test .htaccess RewriteRules and redirects. Step-by-step rule evaluation for any URL. Free, fast, and works entirely in your browser with no sign-up required.

Free CMS Detector

Detect the CMS and technology stack of any website by analyzing HTML source code. Identify WordPress, Shopify, Wix, and more.

Free Website Color Palette Extractor

Extract the complete color palette from any website CSS. Discover brand colors, text colors, and backgrounds. Free, fast, and works entirely in your browser with no sign-up required.

Free Mixed Content Scanner

Scan HTML for mixed content issues. Find HTTP resources on HTTPS pages that block or warn in modern browsers. Free, fast, and works entirely in your browser with no sign-up required.

CORS Tester

Test CORS headers and cross-origin resource sharing policies. Free, fast, and works entirely in your browser with no sign-up required.

Guides & tutorials

Step-by-step guides to get the most out of these tools.

Technical SEO: The Complete Guide for 2026 How to Check a Website's SSL Certificate How to Test Your Website's Loading Speed

About Website Tools

The Website Tools let you test and analyze any site's health. Check page speed and Core Web Vitals, test mobile-friendliness and responsiveness, validate SSL and security headers, review accessibility, and inspect what a page actually serves — practical audits that guide real improvements.

They're built for developers, designers, and SEOs who care about performance and UX. Pair them with our SEO Tools for on-page optimization, our Domain Tools for DNS and certificate checks, and our Developer Tools to debug what you build.

Related categories

SEO Tools Domain Tools Developer Tools