SEO Audit Crawler: On-Page Issues, Broken Links & Score

Bulk URL Status, Redirect & Broken Link Checker

pankajbhatia/url-status-broken-link-checker

Check thousands of URLs for HTTP status codes, redirect chains, final URLs, response times and errors, or find every broken link on your pages. Fast, cheap, great for SEO audits and site migrations.

PAL Event Date Schema Audit

practical_ai_lab_jp/pal-event-start-date-schema

Check Event JSON-LD date, location and status fields. Static HTML and JSON-LD only; public HTTPS URLs.

Broken Link Checker (internal and external)

nitsuahlabs/broken-link-checker

Crawl a website and list every broken link with the pages it appears on.

Crawl a site from a start URL or sitemap, obeying robots.txt and at most two requests a second. Check each link and asset once; report broken and redirected links with status, redirect chain, anchor text and source pages, plus a summary.

PageSpeed Insights & Core Web Vitals Monitor (Bulk, Alerts)

alpine-data/pagespeed-core-web-vitals-monitor

Bulk PageSpeed Insights checker, no coding: paste URLs and your free Google API key in the form, click Start, download Excel. Lighthouse scores and Core Web Vitals (LCP, INP, CLS, real-user CrUX data) with history and regression alerts.

Crawl a website and test every internal and external link, or bulk-check a list of URLs. Returns HTTP status, redirect chain, final URL, response time and which pages contain each broken link. Output only broken links to pay only for problems.

Lighthouse Batch Audits & Regression Alerts

peerless_columbine/lighthouse-batch-audit-monitor

Audit public pages with Lighthouse13.5.0, export raw and HTML reports, and compare persistent category baselines.

Redirect Checker & Bulk URL Status: Chains, Loops, 301 Map QA

cygnix_labs/redirect-checker

Bulk redirect checker and HTTP status code checker. Traces every hop (301/302/307/308, meta refresh) and flags redirect chains, loops, 404s, soft 404s, noindex targets and redirect-map mismatches after a site migration. First 20 URLs free, then $0.0008/URL.

Pre-flight check for Shopify and WooCommerce product import CSV/XLSX files. Replays ~40 importer rules (Default Title trap, variation linking, duplicate SKUs, prices, image links, Excel mangling, mojibake), auto-fixes safe issues with a change log and splits importer-safe chunks.

Lists the page URLs in a site's sitemaps, with lastmod. Follows sitemap indexes and .xml.gz files. Optional changed-since date filter. Reads robots.txt first and never requests the pages.