Built out the Site Audit page for the SEO Auditor — full Lighthouse-style scan integration covering SEO, Performance, Accessibility, and Best Practices, plus Core Web Vitals (LCP, CLS, FCP, Speed Index, TTI).

What’s in it

• Full site scan — pulls scores across 4 categories (SEO, Performance, Accessibility, Best Practices) with a single “Run New Audit” trigger
• Audit issue breakdown — flags critical issues like legacy JavaScript, heading order problems, network dependency chains, and missing link names, each with a Fix action
• Core Web Vitals panel — surfaces LCP, CLS, FCP, Speed Index, and Time to Interactive at a glance
• Health status checks — HTTPS status and sitemap detection/page count
• Scan history — tracks scores over time so users can see trend, not just a snapshot

Google Search Console / SERP integration

Wired up SERP and Google Search Console data alongside the Lighthouse-style audit so the page isn’t just technical scoring — it also pulls in real search visibility data (keyword positions, indexing status) to give a fuller picture of site health rather than just performance metrics in isolation.

Problems faced

Google Search Console gave me a rough time:

• OAuth kept generating incorrectly — spent a long time debugging why the auth flow wasn’t producing valid tokens
• Page Insights access wasn’t being granted — even after “fixing” the OAuth, some scopes weren’t allowing the page insights data I needed
• SERP data never wired up cleanly — couldn’t get a reliable integration working in the time I had
• Burned through API quota while testing/debugging all of the above, which slowed iteration even further

Still an open problem — SERP and GSC integration need another pass. Noting it here so future-me remembers where it broke.

Notes

• Fix Google Search Console OAuth flow (check scopes + redirect URI config)
• Get SERP data wired up reliably
• Add pagination/filtering for the full issue list (currently capped at “view all” expand)
• Surface historical Core Web Vitals trend, not just latest scan