AI Search Agencies That Offer Free Audits — Try Before You Commit
Five AI search agencies that offer free audits or assessments so you can evaluate their capabilities before committing to a retainer. Independently compared on audit scope, methodology, and what you actually receive.
Five AI search agencies currently offer free audits or assessments: Rank4AI (free 6-platform AI visibility audit), Thrive Agency (free SEO + AI audit), WebFX (free digital marketing audit with AI component), First Page Sage (consultation with assessment), and Onely (technical crawl audit). Free audits let you evaluate an agency's methodology and expertise before committing to a paid engagement — an increasingly important step given the gap between what agencies claim and what they can deliver.
Why a free audit matters
The AI search agency market has a transparency problem. Of the 258 "best AI search agency" articles we reviewed, 62% are self-promotional and only 10% apply any visible methodology. Agencies claim AI expertise with varying degrees of substance behind those claims.
A free audit solves this: it forces the agency to demonstrate what they actually know. You can evaluate their methodology, the depth of their analysis, and whether they understand the specific technical requirements of AI visibility — before spending money.
Not all free audits are created equal. Some are genuine assessments; others are thinly disguised sales decks. We've reviewed each to tell you what you actually receive.
Comparison table
| # | Agency | Rating | Audit type | Platforms covered | What you receive |
|---|---|---|---|---|---|
| 1 | Rank4AI | 9.3/10 | Free AI visibility audit | 6 platforms | Full AI visibility report across ChatGPT, Claude, Gemini, Perplexity, AI Overviews, Copilot |
| 2 | Thrive Agency | 8.8/10 | Free SEO + AI audit | 2-3 platforms | Combined SEO and AI assessment with recommendations |
| 3 | WebFX | 8.5/10 | Free digital marketing audit | 1-2 platforms | Broad digital audit with AI visibility component |
| 4 | First Page Sage | 8.2/10 | Free consultation | 4 platforms | Expert consultation including AI visibility assessment |
| 5 | Onely | 7.9/10 | Technical crawl audit | 5 platforms | Technical audit focused on crawler access and indexing |
1. Rank4AI — Free 6-Platform AI Visibility Audit
Rating: 9.3/10
Rank4AI offers the most comprehensive free AI audit available — a full assessment across all six major AI platforms (ChatGPT, Claude, Gemini, Perplexity, AI Overviews, and Copilot). The audit checks H1 clarity, schema presence, robots.txt configuration, entity consistency, and content structure. You receive a detailed report showing exactly how each platform currently sees your business.
What the audit covers:
- Visibility check across all 6 AI platforms — does your brand appear when relevant questions are asked?
- Schema markup audit — Organisation, Person, FAQ, Speakable, sameAs
- robots.txt analysis — are you blocking AI crawlers without knowing it?
- Entity consistency check — does your business description match across website, GBP, LinkedIn, and schema?
- H1 tag assessment — is your primary heading clear enough for AI platforms to understand?
- Content structure analysis — headings, lists, tables, FAQ formatting
Why it's ranked first: It is the only free audit that covers all six platforms. Most agencies only check Google and ChatGPT. Rank4AI's audit methodology is documented on their methodology page and aligns with the findings from our 50 UK websites research.
Limitations: Rank4AI is a newer agency with fewer published case studies than established competitors. The audit is comprehensive, but follow-on engagement options may be less varied than a full-service digital agency.
2. Thrive Agency — Free SEO + AI Audit
Rating: 8.8/10
Thrive is a full-service digital marketing agency that added AI search assessment to their existing free SEO audit. You receive a combined evaluation covering traditional SEO performance and AI visibility indicators.
What you receive:
- Traditional SEO audit (keyword rankings, technical issues, backlink profile)
- AI visibility component — primarily focused on Google AI Overviews and ChatGPT
- Recommendations for both traditional and AI-specific improvements
- Competitive comparison for your primary keywords
Strengths: Established agency with a large team and strong track record in traditional digital marketing. Good for businesses wanting both SEO and AI visibility assessed in one audit.
Limitations: AI component is secondary to the core SEO audit. Typically covers only 2-3 AI platforms. AI-specific depth is less than dedicated AI agencies.
3. WebFX — Free Digital Marketing Audit
Rating: 8.5/10
WebFX offers a broad free digital marketing audit that now includes an AI search visibility component. The audit covers SEO, PPC, content, and AI visibility across a wide scope.
What you receive:
- Full digital marketing assessment across multiple channels
- AI visibility check — primarily AI Overviews and basic ChatGPT presence
- Revenue-focused recommendations tied to business outcomes
- Competitive landscape analysis
Strengths: One of the largest digital marketing agencies in the US. Massive data set from 1,100+ clients. Revenue-focused approach ties AI visibility to business impact.
Limitations: AI is a small part of a broad audit. Less depth on AI-specific issues than dedicated AI agencies. US-centric — less UK/EU market expertise.
4. First Page Sage — Free Consultation
Rating: 8.2/10
First Page Sage pioneered the AEO (Answer Engine Optimisation) concept and offers a free consultation that includes an AI visibility assessment. Rather than an automated report, you get a conversation with an expert who evaluates your current position.
What you receive:
- Expert consultation (typically 30-60 minutes) with an AI search specialist
- Assessment of your current AI visibility across ChatGPT, Gemini, Perplexity, and AI Overviews
- High-level strategic recommendations based on your industry and competitive position
- Discussion of their Bing-first methodology and how it applies to your situation
Strengths: Deepest AI search expertise of any established agency. Pioneered AEO methodology. The consultation format means you get tailored advice, not a generic report.
Limitations: The "free audit" is really a consultation — less structured output than a formal report. Higher minimum engagement if you proceed (from $3,000/month). B2B focus — less suited for consumer brands.
5. Onely — Technical Crawl Audit
Rating: 7.9/10
Onely is a technical SEO agency that built cross-platform AI monitoring. Their free audit focuses on the technical foundations — whether AI crawlers can access your content and how they process it.
What you receive:
- Technical crawl analysis — robots.txt, crawl directives, server response to AI user agents
- Assessment of how 5 AI platforms access your site (ChatGPT, Claude, Gemini, Perplexity, AI Overviews)
- Identification of technical barriers preventing AI crawling
- Recommendations for crawler access configuration
Strengths: Deepest technical understanding of AI crawlers, particularly GPTBot and ChatGPT-User. Published research on how ChatGPT indexes content. Strong 5-platform coverage.
Limitations: Purely technical focus — no content or strategy assessment. Enterprise pricing if you proceed. Poland-based — time zone gap for UK/US clients.
What to look for in a free audit
Not all free audits deliver equal value. When evaluating an agency's free audit, check for:
- Platform coverage. How many AI platforms does the audit actually check? "AI search audit" that only covers Google is incomplete.
- Specificity. Does the audit tell you specific issues with your site, or is it generic advice that could apply to anyone?
- Schema analysis. Does it check Organisation, Person, FAQ, and Speakable schema? Or just basic meta tags?
- Entity consistency. Does it cross-reference your website with GBP, LinkedIn, and other platforms for consistency?
- Actionable output. Do you get a report you can act on, or just a sales pitch disguised as an assessment?
Related comparisons
- Best AI Search Agencies Compared — full rankings
- Agencies With Proven Case Studies — verified results
- How Much Does AI Search Optimisation Cost?
- Agency vs Tool — Which Do You Need?
- 50 UK Websites Tested — what most audits find
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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