I Built an Instant SEO Audit API — Here's What I Learned About Technical SEO

I was consulting for an agency that ran 50+ client audits monthly. They'd use Screaming Frog, Ahrefs, SEMrush—paying hundreds in subscription fees. Then I asked: why can't we build this? Six weeks later, the Degani SEO Audit API was live. It runs 5K daily audits now. Free. What Technical SEO Actually Is Most agencies focus on keywords and backlinks. That's 20% of SEO. Technical SEO is the 80%—the stuff that determines if Google can even crawl and index your site. Are your page titles under 60 characters? Does your site load in under 3 seconds? Do you have proper header hierarchy? These things separate "indexable site" from "invisible site." The API checks all of it instantly. What This API Audits POST /audit - Full technical SEO report with 25+ checks POST /headers - HTTP headers analysis (caching, security, compression) One request. One response. Everything you need. The 25 Checks That Matter Every technical SEO problem falls into categories. Here's what the API checks: Meta Tags & Co