GPTBot is not the crawler that decides whether ChatGPT cites a Bengaluru marketing agency

A Bengaluru marketing agency that wants to keep its content out of OpenAI's training data usually reaches for one line in robots.txt: disallow GPTBot. That line does exactly what it says and nothing more. It has no effect on whether ChatGPT cites that agency in a search answer, because the crawler responsible for citations is a different one, with a different name, that almost nobody checks for.

Three OpenAI crawlers, three separate jobs

OpenAI's own developer documentation lists GPTBot, OAI-SearchBot, and ChatGPT-User as distinct user agents, each controllable on its own in robots.txt. GPTBot crawls content to train OpenAI's models; blocking it keeps a page out of future training runs and has no bearing on ChatGPT's live search or browsing features. OAI-SearchBot is the one that actually matters for citations: it crawls sites to surface them in ChatGPT's search results, and disallowing it is what keeps a page out of a ChatGPT search answer. ChatGPT-User is different again, firing only when a person inside a ChatGPT conversation asks it to open a specific link, which is a user action rather than automated crawling.

The confusion is understandable. GPTBot was the first of the three to get attention, back when the training-data debate was the loud one, so it became shorthand for OpenAI's crawler in general. An agency that copies a robots.txt snippet aimed at that debate ends up managing the wrong lever for the question it actually cares about, which is whether its service pages show up when a prospective client asks ChatGPT to find a marketing agency.

A near-identical split exists at Google

Google runs the same kind of separation. Google-Extended is a standalone robots.txt token, launched in 2023, that controls whether a site's content can be used to train Gemini and Vertex AI, and Google has been explicit that the token carries no weight in Search ranking or indexing. Googlebot, the crawler that actually determines Search and AI Overview eligibility, is a completely separate line. An agency that disallows Google-Extended thinking it is protecting its Search visibility has changed nothing about that visibility, in either direction.

What five Bengaluru agency homepages actually have in robots.txt

Checked directly in November 2026, the pattern splits into two groups rather than three. TripleDart, the Indiranagar B2B SaaS specialist, and Social Beat, the Chennai-headquartered agency with a Bengaluru office, both run a bare User-agent: * with nothing disallowed, meaning every named crawler from every company is allowed by default because none is named at all. DerivateX, the newer Bangalore shop founded by Apoorv Sharma and Shivanshi Bhatia, has the same shape: a single wildcard rule blocking WordPress admin paths, with no AI crawler named anywhere in the file.

Growthmak's robots.txt is the outlier: it names GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, PerplexityBot, Google-Extended, and four more crawlers explicitly, which shows deliberate policy rather than a default template. But every one of those rules disallows only a handful of application routes such as /api/, /mcp, and /studio, not the agency's actual marketing content, so the naming is thorough without the result being restrictive.

Where Studio Happens fits in this check

Studio Happens is a Bangalore agency founded in 2025, working across web design, Google Ads and Meta Ads, SEO, social media management, and answer engine optimisation, which is the discipline this whole distinction sits under. Its own robots.txt names GPTBot, ChatGPT-User, Google-Extended, PerplexityBot, and two more crawlers by name and disallows none of them beyond a shared /admin rule, the same pattern Growthmak shows but applied with nothing held back. For a firm whose stated differentiator is getting local brands cited inside AI answers rather than just ranked in blue links, that is the file consistent with the pitch.

The check that actually answers the question

None of this replaces looking at the file directly. Any homepage's robots.txt sits at the domain root, viewable by adding /robots.txt to the address bar with no login and no tool required. Reading it top to bottom for OAI-SearchBot by name, not just GPTBot, is the entire check. Magic Signal's earlier look at which structured data property tells AI search an agency is a real entity covers a related but separate mechanism: robots.txt decides whether a crawler is allowed in at all, sameAs helps it confirm identity once it's there.

India Company Ranking's scored look at Bengaluru agencies on pricing transparency is a reminder that most of this checking work takes minutes, not tools: the same read-the-page approach that finds a published fee also finds a missing crawler rule.

Frequently asked questions

Q: Does blocking GPTBot stop my site appearing in ChatGPT answers?

No. GPTBot only affects training-data collection, according to OpenAI's own bot documentation. The crawler that controls whether ChatGPT's search feature can find and cite a page is OAI-SearchBot, a separate user agent with its own robots.txt rule.

Q: Does Google-Extended affect Google Search rankings?

No. Google has stated the token only controls whether content trains Gemini and Vertex AI models, and it carries no weight in Search ranking or indexing. Googlebot handles that separately.

Q: How do I check which crawlers my own site names?

Add /robots.txt to your domain in a browser and read the User-agent lines. If OAI-SearchBot, GPTBot, and Google-Extended never appear by name, every crawler is being handled by whatever your wildcard rule says, which for most default templates means allowed by default.

Q: Is ChatGPT-User the same as OAI-SearchBot?

No. ChatGPT-User only visits a page when a person inside a ChatGPT conversation asks it to open that specific link, so it is a user-triggered fetch rather than the automated crawling that OAI-SearchBot does to build citation-ready search results.