Free Technical Audit & AI Readiness Tools
Free browser tools for crawling, structured data, search performance, and AI-generated answers. The single-page Technical Audit needs no signup.
Technical Audit
Instant SEO, performance, security, and AI Readiness analysis of any URL. Get an AI Readiness Score with prioritized recommendations.
GEO Checker
Check whether your site is structured to be discovered and cited in AI-generated answers.
AEO Checker
Audit the technical and content signals that help answer engines understand and cite your site.
AI Brand Checker
See how your brand appears in AI answers and uncover the competitors surfaced beside it.
AI Crawler Access Checker
Compare robots.txt policy with real live requests for 28 AI crawlers, grouped by training, indexing, and user-requested purpose.
SaaS SEO and AI Search Plan
Turn measured Google and AI search evidence into a personalized 90-day plan sized to your weekly capacity.
Google Visibility Diagnosis
Find out whether crawling, indexing, or a measured ranking gap is keeping one page from showing for a target search.
AI Robots.txt Generator
Generate a robots.txt optimized for AI crawlers including ChatGPT, Claude, Perplexity, and Gemini. Control which AI bots access your content.
JSON-LD Schema Generator
Create structured data markup for 9 schema types. Boost rich search results and AI citation readiness.
Content AI Readiness Optimizer
Paste your content and get an instant AI Readiness score. 10 checks for AI citation optimization with actionable fixes.
Meta Tag Analyzer
Preview how your page appears in Google search, social media, and AI citations. Check title, description, and Open Graph tags.
Site Comparison
Compare two websites side by side. See SEO, AI Readiness, performance, security, and accessibility scores for both at once.
Heading Analyzer
Check your page's H1-H6 heading hierarchy for SEO issues. Find missing H1s, skipped levels, and structure problems.
Broken Link Checker
Find dead links (404), redirects, and connection errors on any page. Keep your site healthy for SEO and user experience.
Keyword Density Checker
Analyze keyword frequency and density in your content. Find single words, 2-word and 3-word phrases with density percentages.
Redirect Checker
Trace the full redirect path of any URL. Find redirect chains, loops, 302s, and HTTP-to-HTTPS issues that hurt SEO.
Page Speed Checker
Test your website's performance with Google PageSpeed Insights. Get Core Web Vitals scores (LCP, INP, CLS) and optimization opportunities.
Technology Checker
Detect what technologies any website uses: CMS, frameworks, analytics, CDN, hosting, and payments.
Robots.txt Tester
Analyze any website's robots.txt file. See which crawlers are allowed or blocked, check AI bot access (GPTBot, ClaudeBot), and find SEO issues.
XML Sitemap Validator
Validate your sitemap.xml for errors. Check URL count, lastmod format, namespace, structure issues, and sitemap index support.
Structured Data Tester
Validate JSON-LD schema markup on any URL. Check for required fields, schema types, and AI citation readiness. Supports 12+ schema types.
Open Graph Debugger
Debug and preview your Open Graph meta tags. See how your URL looks when shared on Facebook, Twitter, LinkedIn, Discord, and Slack.
AI Readiness Badge
Embed your AI Readiness badge on your website. Show visitors your AI search readiness with a dynamic SVG badge.
Public REST API
Automate Technical Audit and AI Readiness checks in apps, CI/CD pipelines, or AI assistants. Developer access begins on Launch.
Frequently asked questions
Choose the right free tool, then move into monitoring or developer automation when you need repeatable evidence.
Which free website tool should I use first?
Start with the Foglift Technical Audit. It checks one public URL across SEO, AI Readiness, performance, security, and accessibility, then turns the findings into prioritized recommendations. Use the focused tools when you need to inspect one issue such as schema, headings, redirects, or crawler access.
What do the AI Readiness tools check?
The AI Readiness tools inspect structured data, heading clarity, FAQ quality, entity identity, content depth, citation-friendly formatting, topical authority, and AI crawler access. The crawler checker separately compares robots.txt policy with live requests from 28 recognized AI crawlers.
Do I need an account to run a Technical Audit?
No. The public single-page Technical Audit is free, unlimited, and does not require signup. Full-site audits begin on Launch, select up to 100 pages per run, and preserve completed findings in Technical History.
Can developers automate Foglift checks?
Yes. Launch and higher plans include the REST API, CLI, MCP, webhooks, and batch scanning. Launch starts at $49 per month, includes 50 API requests per day and 1,000 per month, and adds daily monitoring across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overview.
Need a comprehensive Technical Audit?
Our free Technical Audit checks SEO, performance, security, accessibility, and AI Readiness in one report.
Run a Free Technical Audit