Broken Link Checker — Honest Link Health

Check hundreds of URLs at once for status code, full redirect chain, response time, and security headers — spot broken links and redirect loops without downloading page bodies.

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

Sitemap URL Extractor — Every URL in a sitemap.xml as JSON

eliai/sitemap-url-extractor

Get every URL out of a sitemap.xml, a sitemap index (followed recursively), or a bare domain via robots.txt. Returns loc, lastmod, changefreq and priority per URL. Priced per FILE, not per URL: $0.005 per sitemap plus $0.015 per 1,000 URLs. Failures never charged.

AI SEO Audit: robots.txt, llms.txt & 26 AI Crawlers

aiqlabs/seo-ai-visibility-auditor

Crawls a site from one starting URL and reports how visible it is to AI: which AI crawlers robots.txt admits, whether llms.txt exists, and what structured data and metadata each page offers. Give it a domain to crawl - for a fixed list of pages, use SEO Audit Tool instead.

Website Uptime Checker — Is It Down? Status, SSL Monitor

eliai/website-uptime-checker

Check whether a website is up or down — a health check and uptime monitor without a subscription. Input: urls array. Output: JSON per URL with up/down, HTTP status, latency in ms, SSL validity. Schedule as a cron to monitor continuously. $0.01 per URL checked.

SOS Scraper - Corporate Death Signal Aggregator

parseforge/sos-scraper

Scans a list of domains for early business failure signals including DNS expiry, missing social links, absent legal pages, and stale copyright dates. Returns one risk scorecard per domain.

Website Audit Lead Finder — Web Design Leads

jurassic_jove/website-audit-leads

Finds businesses with bad websites and turns them into qualified leads. Bulk-checks any list of sites for missing SSL, broken mobile layout, slow load times and outdated tech, then scores each 0-100 with a plain-English issue list. Built for web designers and SEO agencies.

Website SEO Audit Crawler — On-Page Analyzer

logiover/website-seo-audit-crawler

Crawl a whole website and export an on-page SEO audit to CSV/JSON: meta tag checker, canonical & noindex checker, schema.org type extractor. No browser.

RedNote Xiaohongshu Scraper — Posts, Comments, Profiles, Video

zhorex/rednote-xiaohongshu-scraper

Scrape RedNote (Xiaohongshu) posts, comments, profiles and video — six modes in one Actor. Chinese social media and user generated content at the source: Chinese reviews, China consumer opinion, china market research and the creator data behind influencer marketing. No login for posts and profiles.

Bulk Email Verifier — MX, SMTP & Disposable Detection at Scale

ryanclinton/bulk-email-verifier

Verify email deliverability in bulk — MX records, live SMTP mailbox checks, disposable domain detection (55,000+ domains), role-based flagging, catch-all detection, and confidence scores. $0.005/email, no subscription.