Everything you need to audit your website for search, security, accessibility, and AI-generated answers. Every tool runs in seconds and every one is free.
On-Page & Content
Paste your content and get an instant GEO readiness score. 10 checks with actionable fixes for AI citation.
See how ChatGPT, Claude, and Perplexity render your page in their citation panels. Score for AI pickup, not just Google.
Enter two URLs and compare Technical Audit scores for SEO, AI Readiness, performance, security, and accessibility.
Check your page's H1–H6 hierarchy for SEO issues. Find missing H1s, skipped levels, and structure problems.
Find dead links (404), redirects, and connection errors on any page. Keep your site healthy for SEO and UX.
Analyze keyword frequency and density in your content — single words, 2-word and 3-word phrases with density percentages.
Count words, characters, sentences, and paragraphs. Get reading time, readability score, and SEO recommendations.
Network & Infrastructure
Inspect all response headers. Grade security: HSTS, CSP, X-Frame-Options, caching, server info. A+ to F.
Trace the full redirect path of any URL. Find chains, loops, 302s, and HTTP-to-HTTPS issues that hurt SEO.
Core Web Vitals (LCP, INP, CLS) and optimization opportunities via Google PageSpeed Insights.
Check SSL certificate validity, TLS version, cipher strength, and expiration. Instant security grade A+ to F.
Look up domain registration: registrar, creation/expiry date, nameservers, DNSSEC status, and domain age.
Look up A, AAAA, CNAME, MX, TXT, NS, SOA, CAA records. Check email authentication configuration.
Detect what technologies any website uses: CMS, frameworks, analytics, CDN, hosting, and payments.
Check if any website is up or down right now. Test HTTPS, response time, DNS, redirects, robots, and sitemap.
Analyze any robots.txt. See which crawlers are allowed or blocked. Check AI bot access (GPTBot, ClaudeBot).
Validate your sitemap.xml: URL count, lastmod format, namespace structure, and sitemap index support.
Validate JSON-LD on any URL. Check required fields, 12+ schema types, and AI citation readiness.
Debug and preview OG meta tags. See how your URL renders on Facebook, Twitter, LinkedIn, Discord, and Slack.
Check favicon.ico, apple-touch-icon, PNG variants, and web manifest in one pass.
15 WCAG automated checks for headings, alt text, ARIA landmarks, form labels, and more.
Calculate a web page's carbon footprint. CO₂ per visit, annual emissions, page weight breakdown, reduction tips.
Generators & Pickers
Generate a robots.txt optimized for AI crawlers — ChatGPT, Claude, Perplexity, Gemini. Control which bots access content.
Create structured data markup for 9 schema types. Boost rich search results and AI citation readiness.
Check if text colors meet WCAG 2.1 requirements. Test AA and AAA for normal text, large text, and UI components.
Test password strength: entropy analysis, crack-time estimates, pattern detection, and tips. Nothing is sent to servers.
Generate placeholder text for designs and mockups. Choose paragraphs, sentences, or words.
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes from text. Instant, client-side, nothing leaves your browser.
Pick colors and convert between HEX, RGB, HSL, HWB. Generate shades, tints, and harmonies. Check WCAG contrast.
Write and preview Markdown in real time with a split-pane editor. Copy as HTML. Perfect for READMEs and docs.
Generate QR codes for URLs, text, WiFi, email, phone, and SMS. Customize colors. Download as PNG or SVG.
Generate UUID v4 (random) or v7 (time-sorted). Bulk generate up to 100 at once with multiple formats.
Convert text to URL-friendly slugs. Custom separators, max length, bulk conversion. Perfect for blog URLs and SEO.
Developer Utilities
Format, validate, and minify JSON data. Pretty-print with custom indentation. See key counts and nesting depth.
Encode text to Base64 or decode Base64 strings. Supports UTF-8, Unicode, and special characters. 100% client-side.
Encode or decode URLs and query parameters. Handles special characters, Unicode, and percent-encoding.
Test regular expressions with real-time match highlighting. Flags, capture groups, and common pattern presets.
Minify CSS to reduce file size and improve page speed, or beautify compressed CSS. Shows byte savings percentage.
Decode and inspect JSON Web Tokens instantly. View header, payload, claims, and expiration status. Tokens never leave your browser.
Minify HTML to improve load time. Remove comments, whitespace, and redundant attributes. Or beautify minified HTML.
Parse cron expressions into human-readable descriptions. Field breakdowns, presets, and scheduling syntax.
Convert between Unix timestamps and human-readable dates. Live current time, relative time, ISO 8601 formatting.
Compare two blocks of text and see additions, removals, and unchanged lines highlighted. LCS-based diff algorithm.
Use the focused tools to see what is happening on your site, then bring the findings to a PageLens walkthrough.
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