DEV Community

Cover image for Free 9-Tool SEO Audit Suite — No Login, No API Keys, Structured JSON
Alex Spinov
Alex Spinov

Posted on • Edited on

Free 9-Tool SEO Audit Suite — No Login, No API Keys, Structured JSON

I built 9 free SEO tools on Apify Store:

The Toolkit

  1. SEO Audit Tool — 50+ on-page factors, score 0-100
  2. Broken Links Checker — find all 404s on your site
  3. PageSpeed Insights — Google Lighthouse scores + Core Web Vitals
  4. SSL Certificate Checker — expiry alerts, issuer, protocol
  5. HTTP Headers Checker — security score, 10 headers
  6. Tech Stack Detector — identify 80+ technologies
  7. Sitemap Parser — XML sitemaps, auto-discover from robots.txt
  8. Robots.txt Analyzer — rules, sitemaps, AI bot blocking
  9. Keyword Density Analyzer — word frequency, bigrams, target placement

How They Work Together

Run in sequence for a complete audit:

  1. Robots.txt → check bot access
  2. Sitemap → get all URLs
  3. Broken Links → find dead links
  4. SEO Audit → score each page
  5. PageSpeed → check performance
  6. SSL → verify cert
  7. Headers → security gaps
  8. Tech Stack → know your tech
  9. Keywords → optimize content

All output structured JSON.

Technical Details

  • CheerioCrawler for fast HTML analysis
  • Google PSI API (free)
  • Node.js https for SSL certs
  • Regex for tech detection
  • cheerio xmlMode for sitemaps

Free on Apify Store — search knotless_cadence.

What SEO checks would you add?\n\n---\n\n*More tools:* 60+ free scrapers | Reports | MCP Servers


Need data scraped or market research done? I offer web scraping ($20), market research reports ($20), and custom automation ($50+). 77 production scrapers. Hire me → or email Spinov001@gmail.com

Order custom data via Payoneer ($20)


More from me: 10 Dev Tools I Use Daily | 77 Scrapers on a Schedule | 150+ Free APIs
Also: Neon Free Postgres | Vercel Free API | Hetzner 4x More Server


Need data from the web without writing scrapers? Check my *Apify actors** — ready-made scrapers for HN, Reddit, LinkedIn, and 75+ more sites. Or email me: spinov001@gmail.com*

Top comments (0)