Source of Trust audits GEO and AEO signals -- schema, crawlability, and citation readiness -- so your site gets discovered and cited by ChatGPT, Gemini, and…
Category
AI
Pricing
Freemium -- free Quick Check with no card required, a not-yet-launched Pro subscription, and custom-quoted Deep Audit plans for larger sites, publishers, agencies, or enterprises
Verified
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Last updated
August 7, 2026
SaaSFree PlanWeb AppReportingAIFreemium
Source of Trust is an AI Search Optimization (GEO/AEO) platform built by EEOOM, founded by Stefan Mayr, that helps websites become visible, citable, and understandable to AI systems such as ChatGPT, Gemini, and Perplexity. It combines two disciplines: GEO (Generative Engine Optimization), which evaluates crawlability, entity clarity, and trust signals across an entire site, and AEO (Answer Engine Optimization), which improves individual pages so they surface as direct, citable answers. The platform includes a suite of free diagnostic tools -- a GEO Visibility Check, AI Search Audit, JSON-LD Checker, Entity Readiness Checker, Organization Schema Checker, and Brand Mention Tracking -- that validate structured data, robots.txt and llms.txt accessibility, sitemap health, and organization schema so AI crawlers can correctly parse and cite a site. For teams that need deeper insight, the Deep Audit tier measures actual AI mentions, citation position, AI-recognized alternatives, and content gaps versus competitors, producing a prioritized action plan. Source of Trust is aimed at content teams, SEO professionals, and web teams who want to track and improve how often their brand and content get surfaced by AI answer engines rather than only traditional search results.
Key Features
GEO Visibility Check & AI Search Audit — Scores a website's overall AI-search discoverability, covering crawlability, entity clarity, and citation readiness across the whole site.
JSON-LD Checker — Validates a site's structured data to confirm a clean, machine-readable identity graph, flagging critical issues (missing JSON-LD, invalid syntax, duplicate IDs, broken publisher links) and warnings (missing logos, unresolved references).
Entity & Organization Schema Checkers — Evaluates entity readiness and organization schema so AI systems can correctly identify and contextualize a brand.
Access & Crawlability Checks — Audits robots.txt, llms.txt, and sitemap accessibility to confirm AI crawlers can reach and index a site's content.
AEO Page Tools — Surfaces FAQ opportunities, follow-up questions, and answer-structure improvements at the individual page level so pages read as direct, citable answers.
AI Mention & Citation Tracking (Deep Audit) — Measures actual AI mentions, citation position, AI-recognized alternatives, and content gaps versus competitors, producing a prioritized action plan.
Pros & Cons
Pros
Free Quick Check requires no credit card and gives an instant GEO/AEO visibility score
Covers both site-wide GEO signals (crawlability, schema, entity clarity) and page-level AEO opportunities (FAQ and answer-structure gaps)
Dedicated JSON-LD Checker validates structured data for a clean, machine-readable identity graph, flagging critical issues like missing IDs or broken publisher links
Deep Audit tier tracks actual AI mentions, citation position, and AI-recognized alternatives versus competitors, not just technical checks
Cons
The Pro (subscription) tier is listed as 'coming soon' with no published pricing yet
Deep Audit pricing is custom/quote-based, so cost isn't transparent for larger sites, agencies, or enterprise use upfront
No third-party integrations (e.g., CMS, analytics, or workflow tools) are publicly documented
As a newer product from a small team (EEOOM), it lacks the published customer case studies or testimonials of more established SEO platforms