Step-by-Step GEO Audit: How to Evaluate Your AI Presence in 14 Days

A poorly done GEO audit is worse than none: it produces wrong decisions with the appearance of being well-founded. This guide describes the complete methodology GEOMOND applies with each new client, with deliverables and tools each phase requires.

Phase 1: technical diagnosis (days 1-3)

Goals: validate the foundation on which GEO will be built. Tasks: 1) Schema.org audit (Organization, Article, FAQPage, HowTo, Product/Service as appropriate); 2) robots.txt review for AI crawlers (GPTBot, PerplexityBot, ClaudeBot, Google-Extended, DeepSeekBot); 3) verification of canonicals, hreflang, sitemap.xml; 4) Core Web Vitals analysis; 5) review of About, Author, Press pages and NAP (name-address-phone) consistency. Deliverable: technical checklist with 40-60 pass/fail items.

Phase 2: Presence Index evaluation (days 4-7)

Goals: measure the starting point with reproducible rigor. Tasks: 1) build a representative sector prompt set of 25-50 prompts (not just "what's the best X"; include informational and comparison queries); 2) execute the set against ChatGPT, Claude, Gemini, Perplexity, and SearchGPT (minimum 3 models); 3) execute Google + Bing SERPs for equivalent queries; 4) calculate Presence Index with formula 60% AI + 40% SERP; 5) break down by model and prompt category. Deliverable: dashboard with global score and breakdown.

Phase 3: competitive analysis (days 8-10)

Goals: contextualize own data. Tasks: 1) identify 4-7 real competitors (those appearing in AI responses to the set, not just those in the internal strategic plan); 2) execute the same set for each competitor and calculate their Presence Index; 3) build a crosses matrix (which prompts each competitor wins and why); 4) source analysis cited for leading competitors (which blogs, which media, which Schema.org they have); 5) detect opportunity gaps (prompts where no one dominates). Deliverable: comparative table and opportunity map.

Phase 4: prioritized action plan (days 11-14)

Goals: turn diagnosis into roadmap. Tasks: 1) list all detected actions; 2) estimate expected impact (Presence Index points winnable) and cost/effort of each; 3) prioritize with impact-effort matrix: quick wins (high impact + low effort) first, deep projects (high impact + high effort) in parallel, ignore low impact + high effort; 4) build a 90-day plan with 3 monthly sprints; 5) define monthly tracking KPIs. Deliverable: visual roadmap + 12-15 slide executive presentation.

Tools you need

Minimum viable: paid ChatGPT Plus or equivalent (to access the latest model version), Perplexity Pro, Claude Pro, Sistrix or Semrush for SERP, Screaming Frog for technical audit, Google Schema Markup Validator. Sophisticated: Profound or Otterly to automate set execution, spreadsheets or Looker Studio for the dashboard.

Errors that invalidate the audit

1) Executing the set only once (intra-session model variance can be ±10%; better to execute 3 times and average). 2) Mixing ES and EN queries without segmenting. 3) Not documenting model version (affects month-to-month comparability). 4) Using too-obvious prompts ("what's the best GEO agency in Mallorca" when your brand contains "GEO" is an obvious bias).

When to repeat the full audit

The complete audit is repeated every 6-12 months. Between audits, monthly Presence Index measurements are run on the same set to detect trends. Set changes are justified and documented; undocumented changes break the time series.

At GEOMOND we perform this complete audit free for companies with genuine interest in implementing GEO. Request it and receive the 25-40 page report in 14 days.