TL;DR : A 30-line Python script that does HEAD requests on every LIVE asset URL, verifies HTTP 200, and reports failures. Catches dead Gumroad SKUs, broken site pages, and 404 dev.to slugs before customers do. Runs every 30 minutes via cron. Why audit your URLs If you're an indie hacker with 6+ Gumroad SKUs, 30+ dev.to articles, 12+ Substack issues, 9+ site pages — that's 50+ public URLs that could break: Gumroad SKU unpublished (auto-delisting after 60 days inactive) Substack post taken down (rare but possible) dev.to slug changed (after edit + republish) Site page broken (after refactor / nav change) DNS / SSL issue affecting subdomain Each broken URL costs you a customer or referral. You can't manually check 50 URLs daily. The script """ Verify all LIVE URLs from today ' s tick. HTTP 200 check + report.…