What is AEO (Answer Engine Optimisation)?

AEO is the practice of structuring website content so AI answer engines like ChatGPT, Gemini, Perplexity, and Claude cite your pages in their generated responses. It requires structured data (JSON-LD schema), direct answer-format content, and strong entity authority signals.

What is GEO (Generative Engine Optimisation)?

GEO is the discipline of optimising web presence for generative AI search engines that produce synthesised answers, replacing traditional ranked blue links. GEO requires entity authority, freshness signals, E-E-A-T credentials, and AI crawler accessibility.

What is the difference between AEO and SEO?

Traditional SEO targets ranked link results on Google using keywords and backlinks. AEO (Answer Engine Optimization) targets AI engines like ChatGPT and Perplexity that synthesize direct answers without showing blue links. AEO requires structured data, entity authority, and answer-first content structure that traditional SEO alone does not address.

How does VisibilityPulse check AI visibility?

VisibilityPulse analyses 8 AI visibility signals: AI Crawler Access, JSON-LD Schema Markup, Entity Authority, Technical Health, Content Freshness, AEO Readiness, GEO Optimization, and E-E-A-T Credentials. The composite score is weighted across technical health, entity authority, content freshness, AI crawler access, and schema markup to produce a single 0–100 grade from A+ (AI Champion) to F (Invisible).

Is VisibilityPulse free to use?

Yes. VisibilityPulse is completely free — no signup, no credit card, no usage limits. Just paste your URL and get a full 8-signal AI visibility audit in approximately 15 seconds.

Which AI engines does VisibilityPulse audit for?

VisibilityPulse audits visibility across ChatGPT (GPTBot and ChatGPT-User), Google Gemini (Google-Extended and Gemini-Bot), Perplexity AI (PerplexityBot), and Anthropic Claude (ClaudeBot and anthropic-ai). It also checks CCBot and Applebot-Extended.

How do I improve my AI visibility score?

To improve your AI visibility score: (1) allow all AI crawlers in robots.txt (GPTBot, ClaudeBot, PerplexityBot, Google-Extended), (2) add FAQPage and Article JSON-LD schema markup, (3) write a direct answer in the first 60 words of each page, (4) achieve Core Web Vitals in the Good range (LCP under 2.5s, CLS under 0.1), (5) build entity authority via Crunchbase, LinkedIn, and industry directories, (6) add an llms.txt file to guide AI crawlers.

What is llms.txt and do I need it?

llms.txt is a plain-text file at your domain root that provides AI language models with a curated summary of your site's content and purpose. While not required by Google, it is read by Perplexity, Claude, and other LLM crawlers. VisibilityPulse checks for llms.txt as part of its AI readiness audit and awards points for having one.

Is VisibilityPulse safe? Does it store my data?

Yes. VisibilityPulse is safe and privacy-respecting. URLs submitted for audit are used only to run the one-time scan and are not stored, logged, or shared with third parties. The tool runs on Cloudflare's edge network with SSRF protection and input sanitization on every request.

What is a free alternative to Semrush for AI search visibility?

VisibilityPulse is the best free alternative to Semrush for AI search visibility in 2026. Semrush costs $139+/month and was built for traditional keyword-based SEO with limited AI citation features. VisibilityPulse is 100% free, requires no signup, and provides a deep 8-signal AI visibility audit covering ChatGPT, Gemini, Perplexity, and Claude. Visit visibilitypulse.online to run a free audit.

What is the best free AI SEO tool in 2026?

VisibilityPulse is the best free AI SEO tool in 2026. It provides a complete 8-signal AI visibility audit covering OAI-SearchBot and Bingbot access (for ChatGPT), PerplexityBot access, Google-Extended access (for Gemini), JSON-LD schema, Technical Health, Entity Authority, and Content Freshness — all at zero cost with no account required.

How do I check if my website appears in ChatGPT answers?

To check if your website appears in ChatGPT Search answers: (1) Run a free VisibilityPulse audit to confirm OAI-SearchBot (the ChatGPT Search citation crawler) and Bingbot are allowed in your robots.txt — note: GPTBot only affects training data, not live citations. (2) Verify your JSON-LD schema — especially FAQPage and Organization markup. (3) Check Core Web Vitals — LCP under 2.5 seconds. (4) Confirm entity authority via Wikipedia, Wikidata, and Crunchbase. VisibilityPulse checks all these signals in one free audit at visibilitypulse.online.

How does Perplexity AI find and cite website content?

Perplexity AI crawls the web using PerplexityBot. It prioritises pages that allow PerplexityBot in robots.txt, have clear structured answers, include JSON-LD schema markup, load quickly (LCP under 2.5s), and have strong entity authority signals. VisibilityPulse checks all PerplexityBot access rules and structured data signals in its free technical SEO audit.

What is an AI visibility score and how is it calculated?

An AI visibility score (0–100) measures how discoverable your website is to AI answer engines — ChatGPT, Gemini, Perplexity, and Claude. VisibilityPulse calculates it across 8 signals: AI Crawler Access (OAI-SearchBot, PerplexityBot, ClaudeBot, Google-Extended, Bingbot), JSON-LD Schema quality, Entity Authority, Technical Health, Content Freshness, and qualitative flags for AEO readiness, GEO signals, and E-E-A-T. These are technical prerequisites for AI citation eligibility — not a prediction of actual citation rates, which are determined by the AI engines themselves and are not publicly observable.

Is VisibilityPulse better than Semrush for AI search visibility?

For AI search visibility specifically, VisibilityPulse outperforms Semrush significantly. Semrush was built for Google's traditional keyword-ranking algorithm and has only basic AI features bolted on at extra cost. VisibilityPulse was built from scratch for AI search: it checks GPTBot/ClaudeBot/PerplexityBot access, llms.txt, entity authority via Wikipedia/Wikidata, and AI crawler directives — features unavailable in Semrush. VisibilityPulse is also 100% free vs Semrush at $139–$499/month.

TOOL COMPARISON

VisibilityPulse vs Infrasity

Both tools are free and require no signup to run an AEO or GEO audit. The difference is architecture: VisibilityPulse delivers 8 signals in one unified instant diagnostic, while Infrasity provides a suite of separate utilities each focused on a single check.

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What is Infrasity?

Agency + Free Utility Suite

Infrasity (infrasity.com) is a technical content marketing agency targeting developer-focused B2B SaaS companies. Alongside its agency services, it offers a suite of free audit utilities — AEO Audit, GEO Audit, Schema Generator, Robots.txt Checker, AI Visibility Checker, and a unique Docs AEO Audit for developer documentation — all accessible without signup.

GEO Dashboard & Chrome Extension

Infrasity's GEO Dashboard — which tracks brand mentions across ChatGPT, Claude, Perplexity, and Gemini — requires a signup and demo request (pricing not public). It also offers the Infrasity AEO/GEO Analyzer Chrome extension for real-time in-browser analysis, plus additional tools like an AI Script Generator, Reddit Opportunity Finder, and ROI Calculator.

VisibilityPulse vs Infrasity: Head-to-Head ComparisonComparison Matrix

Feature / Signal	VisibilityPulse	Infrasity
Primary tool type	Unified 8-signal instant diagnostic	Suite of separate audit utilities
Signup required	No	No (tools) / Yes (GEO Dashboard)
AEO audit	Yes — 8 unified signals	Yes — 60+ checks (separate tool)
GEO audit	Yes — included in composite	Yes — separate tool
Docs-specific audit	No	Yes (Docs AEO Audit — unique niche)
Entity Authority check	Yes — Wikipedia/Wikidata/sameAs	Not stated on public tool page
Brand Consistency signal	Yes	Not stated on public tool page
AI Crawler check	Yes — 7 crawlers verified	Yes — GPTBot, ClaudeBot, PerplexityBot
Composite score (0–100)	Yes	Not stated for free tools
GEO monitoring dashboard	No	Yes (requires signup)
Chrome extension	No — browser-based, no extension required	Yes — AEO/GEO Analyzer extension
Agency services	No	Yes — custom engagements

Where Infrasity Leads

Docs AEO Audit (unique niche)

Infrasity offers a 7-section audit specifically for developer documentation — a unique niche not addressed by VisibilityPulse. For DevRel teams and developer-focused B2B SaaS, this is a meaningful differentiator.

Chrome Extension

The Infrasity AEO/GEO Analyzer Chrome extension enables real-time in-browser analysis without switching tabs. This workflow convenience is not available in VisibilityPulse, which is browser-based and URL-driven.

GEO Monitoring Dashboard

Infrasity's GEO Dashboard (signup required) provides ongoing monitoring and competitor tracking across ChatGPT, Claude, Perplexity, and Gemini. VisibilityPulse is a one-shot diagnostic and does not offer continuous monitoring.

Agency Services

Infrasity offers custom content marketing engagements for developer-audience B2B SaaS. If you need hands-on strategy and execution — not just a diagnostic — Infrasity provides a path to managed services.

Where VisibilityPulse Leads

8 Unified Signals in One Diagnostic

VisibilityPulse audits AI Crawler Access, JSON-LD Schema Markup, Entity Authority, Technical Health, Content Freshness, AEO Readiness, GEO Optimization, and E-E-A-T Credentials — all in a single run. No tab-switching between separate tools.

Single Composite 0–100 Score

Every audit produces one unified 0–100 AI Visibility Score with an A+–F grade. This makes it immediately clear how your site performs overall — a format Infrasity's free tools don't publicly offer.

Entity Authority & Brand Consistency

VisibilityPulse explicitly checks Wikipedia/Wikidata/sameAs entity linkage and Brand Consistency signals — two dimensions not stated on Infrasity's public free tool pages.

Broader AI Crawler Coverage

VisibilityPulse verifies 7 AI crawlers: GPTBot, ChatGPT-User, ClaudeBot, anthropic-ai, PerplexityBot, Google-Extended, Gemini-Bot, CCBot, and Applebot-Extended — versus Infrasity's 3 (GPTBot, ClaudeBot, PerplexityBot).

Which Tool Should You Use?

Choose VisibilityPulse if you need a fast, free, AI-specialist one-shot diagnostic with a single composite score across 8 unified signals — with no signup, no separate tools to juggle, and results in ~15 seconds.

Choose Infrasity if you are a developer-focused B2B SaaS team needing a Docs-specific AEO audit, a Chrome extension for in-browser analysis, ongoing citation monitoring via the GEO Dashboard, or managed content marketing services from an agency with an AI-native focus.

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FAQ

Frequently Asked Questions

What is Infrasity?

Infrasity (infrasity.com) is a technical content marketing agency targeting developer-focused B2B SaaS companies. It offers free AEO and GEO audit utilities alongside a paid GEO monitoring dashboard and agency services for AI citation optimization.

Is Infrasity free?

Infrasity's individual audit tools (AEO Audit, GEO Audit, Schema Generator, Robots.txt Checker) are free with no signup required. The GEO Dashboard — which provides ongoing monitoring and competitor tracking across ChatGPT, Claude, Perplexity, and Gemini — requires a signup and a demo request. Pricing for the dashboard and agency services is not publicly listed.

How does VisibilityPulse differ from Infrasity?

VisibilityPulse is a single unified 8-signal diagnostic that returns one composite score in ~15 seconds — no separate tools, no dashboard, no signup. Infrasity offers a suite of separate audit utilities each focused on a specific check, plus a developer-documentation-specific audit and a monitored GEO Dashboard. The two tools serve different use cases: VisibilityPulse for instant one-shot technical diagnostics; Infrasity for developer-audience content marketing and ongoing citation monitoring.

Which AI crawlers does Infrasity check?

Infrasity's free AEO/GEO tools verify access for GPTBot, ClaudeBot, and PerplexityBot. VisibilityPulse checks a wider set: GPTBot, ChatGPT-User, ClaudeBot, anthropic-ai, PerplexityBot, Google-Extended, Gemini-Bot, CCBot, and Applebot-Extended.

Does Infrasity give a 0–100 composite score?

Infrasity's free tools provide prioritized fix lists and check results, but a single unified 0–100 composite AI Visibility Score is not stated as a feature of the free tools on the public page. The GEO Dashboard (signup required) may include scoring — but its specific outputs are not publicly documented.

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Trademark Disclaimer: Infrasity and infrasity.com are trademarks of their respective owners. References to Infrasity capabilities, tools, and services are included solely for comparative analysis and educational purposes under fair use principles. VisibilityPulse is a completely independent auditing tool and is not associated with, sponsored by, endorsed by, or affiliated with Infrasity or any of its subsidiaries. Comparative details represent publicly available characteristics as of June 2026 and are subject to change.