Is your website visible to ChatGPT, Claude and Perplexity? Free 9-point audit for LLM visibility, Schema.org entity graphs, AI crawler access, generative engine optimization (GEO) and answer engine optimization (AEO). Check your llms.txt, robots.txt, SSR and sitemap — instantly.
Your site is built with client-side rendering (React / Vue / Angular)
AI crawlers like GPTBot, ClaudeBot and PerplexityBot do not execute JavaScript.
They send one HTTP request, read the raw HTML, and move on.
If your content is rendered by JavaScript in the browser, they see an empty page.
GPTBot (ChatGPT) - does not execute JS, sees empty HTML shell
ClaudeBot (Anthropic) - does not execute JS, sees empty HTML shell
PerplexityBot - does not execute JS, sees empty HTML shell
Google-Extended (Gemini) - renders JS via Googlebot infrastructure
Next.js SSR / Nuxt SSR / WordPress - content in initial HTML, fully visible
Source: Vercel + MERJ analysis of 500M+ GPTBot requests - zero JavaScript execution detected.
Pure CSR apps have a median 97% "ghost ratio" - almost all content invisible to AI.
The fix: migrate to SSR (Next.js, Nuxt) or add server-side prerendering.
NEED HELP FIXING THIS?
I can fix your AI visibility issues
SSR setup, llms.txt, sitemap, AI crawler access — I audit and implement the fixes. Freelance SEO & AI optimization consultant based in Munich.
Does your website load fast enough for mobile users and Google Ads? Free real-time Google Lighthouse mobile audit for Largest Contentful Paint (LCP), First Contentful Paint (FCP), and critical request chains. Stop burning your paid ad budget on slow mobile bounces.
Running Google Lighthouse Mobile Audit... (10-15s)
ANALYZED URL
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Largest Contentful Paint (LCP)
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Target: < 2.5s. Main visual content rendered. Directly affects mobile bounce rate.
First Contentful Paint (FCP)
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Target: < 1.8s. Time until the browser renders first text or image.
Cumulative Layout Shift (CLS)
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Target: < 0.1. Visual stability during render (prevents accidental misclicks).
Total Blocking Time (TBT)
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Target: < 200ms. CPU main thread blockage from heavy JavaScript execution.
🎯Paid Ad & Conversion Impact
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⛓️Network Dependency Tree
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🚀Top Speed Opportunities
NEED HELP SPEEDING UP YOUR SITE?
I eliminate critical request chains and boost Core Web Vitals to 95–100
Font self-hosting, CSS inlining, SSR optimization, JavaScript debloating — I personally diagnose and implement the engineering fixes. Freelance AI & Performance Consultant based in Munich.
What is AI Visibility and Why Does Your Website Need It?
AI visibility means whether your website can be found and read by AI-powered search engines like ChatGPT, Perplexity, and Google AI Overviews. These systems do not work like traditional search engines — they send a single HTTP request, read the raw HTML, and move on. If your content is rendered by JavaScript, they see an empty page.
Businesses with low AI visibility miss out on a fast-growing traffic channel. When someone asks ChatGPT "best AI automation consultant in Munich" or Perplexity "how to automate invoices in Germany", only websites that AI crawlers can actually read appear in the answers. This is where generative engine optimization (GEO) becomes critical.
How AI Search Engines Read Websites
AI crawlers — GPTBot (ChatGPT), ClaudeBot (Anthropic), PerplexityBot — work differently from Googlebot. They do not execute JavaScript. They fetch the raw HTML of a page in a single request. If your site uses React, Vue, or Angular without server-side rendering (SSR), the AI crawler sees a blank shell with no content.
Three technical signals determine whether an AI crawler can index your site: server-side rendering (content in the initial HTML), an open robots.txt that permits AI bots, and an llms.txt file that tells AI systems what your site is about. This free AI readiness checker audits all three in 10 seconds.
What is Generative Engine Optimization (GEO)?
Generative engine optimization (GEO) is the practice of making websites readable and citable by AI language models. Unlike classic SEO which optimizes for keyword ranking in blue links, GEO optimizes for citation in AI-generated answers. Answer engine optimization (AEO) is a related term used specifically for voice search and conversational AI platforms.
The core GEO checklist: server-side rendering so AI crawlers can read your content, structured data (Schema.org) so AI understands your entities, an llms.txt file as a machine-readable site summary, and a sitemap so crawlers can discover all your pages. This AI readiness checker scores your site across 8 GEO metrics instantly.
KI Sichtbarkeit fur Unternehmen
Immer mehr Nutzer suchen mit ChatGPT, Perplexity oder Google AI Overviews statt mit klassischen Suchmaschinen. Wenn Ihre Website technisch nicht fur KI-Crawler zugaenglich ist, erscheint sie in diesen Antworten nicht. KI Sichtbarkeit zu optimieren bedeutet: serverseitiges Rendering, offene robots.txt fur KI-Bots und eine llms.txt-Datei.
Als KI Berater in Munchen helfe ich Unternehmen dabei, ihre Website fur ChatGPT, Perplexity und Google AI sichtbar zu machen. Das umfasst technische Audits, SSR-Migration, llms.txt-Setup und strukturierte Daten. Wenn Sie wissen mochten, wie Ihre Website fur KI-Suche aufgestellt ist: Nutzen Sie den kostenlosen Checker oben.
Why Mobile Speed & Core Web Vitals Protect Your Paid Ad Budget
When running paid search and social campaigns via Google Ads or LinkedIn Ads, every mobile click carries a direct cost ($15 to $45+ CPC in B2B). However, if your mobile landing page takes longer than 2.5 seconds to render, bounce probability increases by 32% to 90%. Users abandon the page before seeing your headline, causing severe conversion loss and wasting ad budgets.
The most frequent hidden bottleneck flagged by Google Lighthouse audits is Critical Request Chains ("Avoid chaining critical requests"). This occurs when a landing page fetches dependent assets sequentially — such as an external Google Fonts CSS file that triggers a second-round font download, alongside blocking CSS and synchronous scripts. Eliminating critical request chains via local font hosting and inlining critical CSS directly resolves the latency bottleneck, boosting mobile performance scores to 95–100.
Why Fast Speed is the Foundation of AI Agent Discovery
Speed is equally vital for autonomous AI crawlers (PerplexityBot, ChatGPT Search, WebMCP). AI agents crawl under strict latency timeouts (often 2.5 to 4.0 seconds). A sluggish server with render-blocking dependency chains causes AI crawlers to time out or parse incomplete DOM snapshots, making your brand invisible in conversational search results.
Frequently Asked Questions
Why does a slow mobile landing page destroy Google Ads ROAS?
Google Ads bills you the moment a user clicks your ad. If your landing page Largest Contentful Paint (LCP) takes over 3 seconds, up to 50% of mobile users bounce before the page visually loads. Furthermore, Google Ads Quality Score penalizes slow landing pages, driving up your Cost Per Click (CPC) and reducing ad rank.
How do I fix "Avoid chaining critical requests" in Google Lighthouse?
To eliminate critical request chains: (1) Self-host web fonts as WOFF2 files and preload them directly from your origin instead of relying on external Google Fonts stylesheets. (2) Inline critical above-the-fold CSS directly into your HTML <style> block. (3) Defer non-critical scripts with defer and fetchpriority="low". Switch to the "Mobile UX & Speed" tab above to audit your site's request chains instantly.
How do I make my website visible to ChatGPT and Perplexity?
To make your website visible to ChatGPT (GPTBot) and Perplexity (PerplexityBot), you need three things: (1) server-side rendering so AI crawlers can read your content without executing JavaScript, (2) an open robots.txt that explicitly allows GPTBot, ClaudeBot, and PerplexityBot, and (3) an llms.txt file that gives AI systems a summary of your site. Use this free AI visibility checker to audit all three in 10 seconds.
What is the difference between SEO and GEO (Generative Engine Optimization)?
Classic SEO optimizes for ranking in traditional search results — blue links ranked by keyword relevance and backlinks. Generative engine optimization (GEO) optimizes for citation in AI-generated answers from ChatGPT, Perplexity, and Google AI Overviews. GEO focuses on technical crawlability (SSR, llms.txt), structured data (Schema.org FAQPage, HowTo), and authoritative content that AI models cite as sources. A site can rank well on Google but be completely invisible to AI systems.
Wie optimiere ich meine Website fur KI-Suche?
Um Ihre Website fur KI-Suche (ChatGPT, Perplexity, Google AI Overviews) zu optimieren, sind drei Schritte entscheidend: (1) Serverseitiges Rendering (SSR) statt reinem JavaScript-Rendering, damit KI-Crawler Ihre Inhalte lesen koennen. (2) Eine llms.txt-Datei, die KI-Systemen einen strukturierten Uberblick uber Ihre Website gibt. (3) Eine offene robots.txt, die GPTBot, ClaudeBot und PerplexityBot erlaubt. Nutzen Sie den kostenlosen AI-Checker auf dieser Seite, um zu sehen, wo Ihre Website steht.