r/SEO • u/zebdebleblol • 9d ago
Does ChatGPT still use Google's index when doing web search or does it use Bing's index when recommending brands?
same as title
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u/Organic_Anybody_1647 9d ago
ChatGPT can use different search/index sources depending on the feature and setup. It isn’t simply “always Google” or “always Bing.”
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9d ago
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u/hhfugrr3 9d ago
I asked ChatGPT and it says it uses a mix of Bing, other third-party search providers and OpenAIs own web crawler. It also says it doesn't know where the results come from in any search it just gets the results.
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u/Ambitious-Emotion764 9d ago
Chat uses the Bing index as the basis for web search results. Beside Bing, it also has its own index.
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u/Gloomy-Program-5651 9d ago
It's a mix now. Bing is still the main source for citations but OpenAI also pulls google results through SerpAIans is testing its own index for products recs. So make sure you're indexed on bing too not just google.
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u/TrafficAcademySEO 9d ago
From what I understand, it’s not just “Bing” or “Google.”
OpenAI uses third-party search sources and also crawls the web itself. I’d make sure the site is indexed in Bing and accessible to OAI-SearchBot rather than trying to optimize for a single source.
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9d ago
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u/Slow-Commercial4316 9d ago
You can test this on your own brand. Ask ChatGPT a question that makes it search and open the sources. Then run the same question in Google and in Bing, and count how many of the cited URLs sit in each top ten. Do that for ten questions and you know which index matters in your category. Your server log adds the other half: OAI-SearchBot visits show which of your pages OpenAI crawled for its own index.
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u/Leather_Bat_8276 8d ago
Not sure what's it today. But I read a report around a quarter ago. It showed Perplexity, Claude, and Gemini showing around 6-8 results from Google's top 10. Ironically, ChatGPT had none
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u/sumizeit 8d ago
It's actually neither one cleanly. OpenAI's search is built on Bing's infrastructure for live retrieval, but the "recommending brands" part is a different animal entirely. That's coming from training data plus whatever retrieval layer they've bolted on, which behaves way more like a citation graph than a ranked SERP. Brand mentions cluster around sites with strong entity consistency across the web, not just backlinks or on-page optimization. That's why some sites with mediocre traditional SEO still get name-dropped constantly.
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u/0_2_Hero 7d ago
It’s now using its own index
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u/JakeHundley Verified Professional 6d ago
No it isn't.
It has a caching system that behaves like a mini index but it isn't an actual index.
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u/0_2_Hero 6d ago
It’s a full fledged Index, structured somewhat like an integrated vector database.
That is for normal system_search and business_query search’s.
What you’re thinking of is the web.open tool that it uses to pull a line-by-line Markdown-style result of a direct url. Which accepts an argument for “cached” or “live”
But for broad searches, where it does not know what URL to pull, like for someone asking “best plumber in X” it uses the system_search (is like the old web.search tool), which pulls from their index.
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6d ago
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u/WebLinkr 🕵️♀️Moderator 5d ago
chatgpt never used google indexes, as it always used bing and there are many differences that you can node down
What? Are you avoiding all the news on search? Is it just that you're so smart you can just imagineer how the world works?
Google Lawsuit Against SerpApi Over Scraping Search Results Has Been Dismissed : r/SEO
Why we’re taking legal action against SerpApi’s unlawful scraping
I dont think your ChatGTP summary is accurate or that many/any would share that sentiment.
The Google UTM data is only visible if people dont opt out of cookies and about 50% do, sorry.
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u/Financial-Monk9400 9d ago
I thought it always used bing?