I built 9 free SEO tools on Apify Store:
The Toolkit
- SEO Audit Tool — 50+ on-page factors, score 0-100
- Broken Links Checker — find all 404s on your site
- PageSpeed Insights — Google Lighthouse scores + Core Web Vitals
- SSL Certificate Checker — expiry alerts, issuer, protocol
- HTTP Headers Checker — security score, 10 headers
- Tech Stack Detector — identify 80+ technologies
- Sitemap Parser — XML sitemaps, auto-discover from robots.txt
- Robots.txt Analyzer — rules, sitemaps, AI bot blocking
- Keyword Density Analyzer — word frequency, bigrams, target placement
How They Work Together
Run in sequence for a complete audit:
- Robots.txt → check bot access
- Sitemap → get all URLs
- Broken Links → find dead links
- SEO Audit → score each page
- PageSpeed → check performance
- SSL → verify cert
- Headers → security gaps
- Tech Stack → know your tech
- 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?
Top comments (0)