brand-lens / free AI visibility checker
See your brand the way AI sees it.
ChatGPT, Claude, Perplexity and Google AI describe your brand from what your website lets them read: your name, your colors, your fonts, your logo, your words. Paste a URL and get the extraction, scored across 14 checks.
$ fetch yoursite.com → extract identity → score. No signup, nothing stored.
AI already has an opinion about your brand.
Marketing Stack reads the same signals, learns your voice, palette and logo, then publishes on-brand content every day. It teaches AI, and your audience, exactly who you are.
Put your brand on autopilotWhat happens when you run the lens
We fetch like a machine
Your homepage is requested exactly the way an AI crawler requests it: raw HTML, no JavaScript execution, plus robots.txt and llms.txt. What comes back is all the machines get.
Your identity, machine-read
From the markup and your stylesheet we pull the brand AI perceives: title, description, logo, structured data, plus your actual color palette and typefaces straight from the CSS.
14 checks, each with a fix
Every signal is scored: brand and design, content, and AI access. Failed checks come with the concrete fix, so the report is a to-do list, not a diagnosis.
Why AI visibility matters now
Source: HubSpot State of Marketing 2026
Questions people ask
How do AI tools like ChatGPT decide what to say about a brand?
They build their picture from machine-readable signals on your website: the page title, meta description, headings, structured data (JSON-LD), Open Graph tags and the readable text itself. When those signals are missing or inconsistent, the AI fills the gaps by guessing, and the guess becomes your brand description in millions of answers.
What is an AI visibility checker?
A tool that fetches your website the way an AI crawler does and reports what machines can actually read: your brand name, description, logo, colors, typography, structured data and whether AI crawlers are allowed in at all. Brand Lens scores 14 of these signals and shows you the exact identity AI extracts.
Can AI really detect my brand colors and fonts from my website?
Yes. Your stylesheets declare your palette and typefaces explicitly, and systems that analyze brands (including Marketing Stack) read them from there. If your CSS is a soup of one-off colors, machines extract a muddled identity. That is usually a sign human visitors experience the same inconsistency.
Should I block GPTBot and other AI crawlers?
If you want your brand to appear in AI answers, no. Blocking GPTBot, ClaudeBot, PerplexityBot or Google-Extended in robots.txt removes you from the sources those systems can cite, and AI-referred visitors are among the highest-intent traffic there is.
What is llms.txt and do I need one?
An emerging convention: a plain-text file at yoursite.com/llms.txt that briefs AI systems on what your site is, in your own words. Very few sites have one yet, which is exactly why adding it puts you ahead: you author the summary machines would otherwise infer.
Does AI visibility affect SEO?
Increasingly, yes. The signals that make you legible to AI (clear titles, structured data, consistent identity, accessible content) are the same fundamentals search engines reward, so improving one improves both. Our guide on how AI detects brand voice goes deeper.