A modern SEO audit covers 5 layers: technical, on-page, off-page, content, and AEO (Answer Engine Optimization). This 50-point checklist covers all five, with AI helping on 80% of the checks.
An SEO audit is a systematic review of everything that affects a site's organic visibility — technical health, content quality, backlinks, and now answer-engine presence.
| Layer | 2020 | 2026 |
|---|---|---|
| Technical | Core Web Vitals new | INP replaces FID; LCP tightened |
| Content | Keyword density | Topical authority + entities |
| Backlinks | Volume focus | Topical relevance + citations |
| AEO | Not a thing | Table stakes |
| Tooling | Manual | AI-assisted, 10× faster |
Title + meta checker
Review these 50 title tags. Flag: >60 chars, missing target keyword, duplicate, or missing CTA.
Content gap finder
Compare my page
to the top 3 ranking pages for . List entities, subtopics, and sections I'm missing.
Schema validator
Validate this JSON-LD. Flag missing required fields for
. Output corrected JSON-LD.
| Tool | Use Case | Free Tier | Best For |
|---|---|---|---|
| Screaming Frog | Technical crawl | ✅ (500 URLs) | Full audits |
| Ahrefs | Backlinks + content | ❌ | Pros |
| Google Search Console | Indexing + queries | ✅ | Everyone |
| PageSpeed Insights | Core Web Vitals | ✅ | Speed audits |
A: 4–8 hours for a 1,000-page site with AI assistance. 2–3 days manual.
A: Full audit quarterly, mini-audit monthly (top 20 pages + technical health).
A: AI handles 80% — the 20% human judgment (intent, E-E-A-T, brand voice) still matters.
A: Ignoring AEO. If you don't show in ChatGPT/Perplexity, you're losing 15–25% of future traffic.
A: Free tier (GSC + PSI + a crawler) covers 70%. Ahrefs/Semrush unlock the rest.
A: 45/50 or higher. Below 40, you have serious leaks.
A structured audit beats intuition. Run this checklist quarterly, fix the top 5 issues each time, and your organic graph compounds.
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