Website SEO Audit: SEO, Accessibility, Security & Links

Bulk SEO Audit - Titles, Meta, Headings, Schema, Links

thirdwatch/seo-data-extractor

Run an SEO audit on hundreds of pages at once. For each URL you get the title, meta description, headings, canonical, Open Graph and Twitter cards, schema markup, image alt-text gaps, internal and external link counts, and word count. The fastest way to check on-page SEO across a whole site.

Extract all URLs from any website's sitemap. Auto-discovers sitemaps from robots.txt, supports sitemap index files and .gz compression. Filter by URL pattern, date range.

SEO Site Audit — Website SEO Checker & Crawler

saliga/seo-site-audit

Crawl a website and audit every page for technical and on-page SEO: a 0-100 score, issues with fix hints, broken internal links, duplicate titles, orphan pages, canonical and robots problems, plus a site summary. $3 per 1,000 pages.

Generate an XML sitemap for any website. Crawls internal pages from start URLs (with depth + page limits), deduplicates URLs, and stores a ready-to-submit sitemap.xml plus a structured dataset and summary for SEO audits.

Site Migration Redirect QA

checksmithcats/site-migration-redirect-qa

Check submitted old-to-new URL mappings before or after a site migration. Reports redirect status, final URL, chain length, loops, missing redirects, and target mismatches.

HTTP Status Code Checker

onescales/simple-http-status-code-checker

Bulk check HTTP status codes (200, 301, 302, 402, 404, 500, and more) and redirect chains for any list of URLs. A must-have lookup tool for SEO audits, site migrations, and broken link detection

Audit website migrations: validate redirect chains, destinations, canonicals, and indexability between old and new URL sets.

GTmetrix Performance Tester

alizarin_refrigerator-owner/gtmetrix-performance-tester

Automated website performance testing using GTmetrix. Get Core Web Vitals, PageSpeed scores, waterfall analysis & optimization recommendations. Batch test multiple URLs.

Broken Link Checker for Website SEO Audits

zinin/broken-link-checker

Audit links found in permitted HTML pages: unique URL checks, referrer evidence, redirect chains and a clear split between broken, blocked and unchecked links.

🔎 Crawl websites and turn technical SEO, accessibility, security, performance, broken-link, structured-data, robots.txt, llms.txt, and AI crawler signals into prioritized 0–100 audit scores and client-ready reports.