Methodology Last updated: May 2026

Our Methodology - How We Evaluate AI Search Agencies

We use a structured 12-criteria evaluation framework to compare AI search optimisation agencies. Here's exactly how we assess, score, and rank providers.

OM
Oliver Mackman
AI Search Analyst

Every agency and tool we compare is scored on the same 12 criteria. We use public information, published reviews, and direct testing where possible. Scoring is consistent. No agency can pay for a higher position.

The 12 criteria

#CriterionWeightWhat we assess
1AI platform coverage15%How many AI platforms (ChatGPT, Gemini, Perplexity, AI Overviews, Claude, Copilot) the agency actively optimises for
2Methodology transparency12%Whether the agency has a documented, repeatable methodology vs ad hoc approaches
3Published case studies10%Measurable results with specific metrics - citation counts, traffic, revenue impact
4Team expertise10%Named experts with verifiable credentials, published research, speaking history
5Client review scores10%Third-party review scores (G2, Clutch, Google Reviews, Trustpilot)
6Pricing transparency8%Whether pricing is published or available on request. Clear scope definition.
7Schema implementation8%Whether the agency implements FAQPage, Organisation, Speakable, and other AI-relevant schema
8Content strategy7%Approach to content structure - answer capsules, entity optimisation, topical authority
9Industry focus5%Whether the agency specialises in specific verticals or is a generalist
10Reporting quality5%What clients receive - frequency, depth, AI-specific metrics vs generic SEO metrics
11Contract terms5%Flexibility - month-to-month vs annual lock-in, cancellation terms
12Bing optimisation5%Whether the agency optimises for Bing (which feeds ChatGPT) - most don't

How scoring works

Each criterion is scored 1-10. Scores are weighted by the percentages above to produce an overall rating out of 10. We round to one decimal place.

Data sources

  • Agency websites - service descriptions, case studies, team bios, pricing (where published)
  • Third-party review platforms - G2, Clutch, Google Reviews, Trustpilot
  • Published content - blog posts, research papers, conference talks, LinkedIn profiles
  • Direct testing - where possible, we test agency approaches on sample sites
  • Industry recognition - awards, media mentions, client logos

What we don't do

  • Accept payment for positioning - no agency can buy a higher rank
  • Guarantee ratings - ratings reflect our independent assessment
  • Review agencies that don't have publicly verifiable information - if we can't verify it, we don't rate it
  • Include agencies in categories they don't serve - an agency is only listed where it has genuine expertise

Update schedule

All comparison pages are reviewed monthly. We re-check review scores, pricing, case studies, and platform coverage. Major methodology changes are noted here with a date.

Editorial transparency

We publish a live AI citation gaps page documenting the SEO-agency queries where AI engines (ChatGPT, Gemini, Perplexity, AI Overviews) cite competitors and not SEOCompare. The page includes the answer capsules, comparison tables, and source data we use to close those gaps. It is updated when citation status changes.

Disclosure

SEOCompare has a commercial relationship with Rank4AI, which appears in some comparisons. Rank4AI is scored using the same methodology. It does not appear in categories where it lacks expertise. Full disclosure appears on every page where it is listed. We earn affiliate commissions from some tool links but not from agency listings.

OM

Oliver Mackman

AI Search Analyst, SEOCompare

Oliver leads SEOCompare's editorial and comparison research. With over a decade in digital marketing, he oversees agency evaluation, tool testing, and AI search data analysis.

Last reviewed: 7 April 2026

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