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AIResearchGuide

If I update my pricing page, how long until ChatGPT, Gemini and Perplexity show the change?

EasyFound · · 8 min read

TL;DR

There's no set time, and no AI company publishes one for a changed page. On our small website, ChatGPT's search crawler came back for only about one in fifteen of our page changes in the days we watched, and Perplexity's sent no request at all. An answer can show your change sooner if the AI opens your page live. Make the change easy to spot, then re-check after a week.

There's no set time. ChatGPT, Gemini and Perplexity don't publish how long they take to show a change to an existing page, and on our own website their search crawlers re-read only a few changed pages in the days after we changed them. An answer can still show your change sooner if the AI opens your page live while answering.

Say you raise your aircon servicing package on Monday and a customer asks ChatGPT about it on Wednesday. In our server logs, ChatGPT's search crawler came back for 6 of our 87 page changes (about one in fifteen) before the page changed again or our logs ended. This is a living check: we plan to re-run it weekly and log each result at the end of this page.

How long do ChatGPT, Gemini and Perplexity take to show a change to my website?

None of the three companies gives a timetable for a changed page. Each answer engine reads the web through its own crawler, and each says something different about timing:

What each company's documentation says about re-reading a changed page
AI tool What reads your page What the company says about timing
ChatGPT OAI-SearchBot; ChatGPT-User for live visits No page timing; robots.txt changes take "~24 hours"1
Gemini, Google AI Overviews, AI Mode Google Search, built by Googlebot "Crawling can take anywhere from a few days to a few weeks"2
Perplexity PerplexityBot; Perplexity-User for live visits No page timing; robots.txt changes take "up to 24 hours"5

Google's AI features need the page "indexed and eligible to be shown in Google Search with a snippet"3, so a change reaches them through Google's index, as our new-page timeline explains for Gemini too4. Google doesn't say how the Gemini app chooses between a live search and what the model already learned.

What an AI learned in training, rather than from a search, generally changes only when the model is updated. So a question answered without a web search can repeat an old price long after you've changed it.

How often did AI crawlers re-read our pages after we changed them?

AI search crawlers rarely came back to a page soon after we changed it. Between 2 and 5 October 2026 we made 87 changes to 47 existing pages on easyfound.co. Most were small. Half (44) added a single internal link, and 26 more shortened a summary. The rest rewrote an opening (14) or corrected facts or the homepage headline. We then checked every request to our server for a re-read before the page changed again or our logs ended on 6 October.

Changed easyfound.co pages each crawler re-read, 2–6 October 2026, out of 87 page changes (CSV)
Crawler (whose) Changes it came back for
OAI-SearchBot (ChatGPT search) 6
Googlebot (Google Search and its AI features) 4
bingbot (Microsoft Bing) 0
PerplexityBot (Perplexity) 0 (no request at all, 25 Sep–6 Oct)
Claude-SearchBot (Claude) 0 (no request at all, 25 Sep–6 Oct)

Read "0" as "not within the time we watched", not "never". Each change was watched only until the page changed again or our logs ended, from under two hours to about four days. The link changes got two days at most. Cloudflare serves some requests from its cache without reaching our server, so every count here is a minimum. PerplexityBot and Claude-SearchBot sent no request that reached our server in the 11 days of logs we hold, from 25 September to 6 October. Those logs have no gap longer than three hours.

When ChatGPT's crawler did come back, it was quick. After we rewrote the openings of 14 articles on 2 October, it re-read 4 of them within about a day, the fastest in under two hours. Then it went quiet: from late on 3 October (UTC) it fetched no article page for about two and a half days, only our robots.txt.

Googlebot came back for its four changes within a day each. Our reading is that both crawlers revisit pages on their own schedule, and our edits didn't seem to bring them back sooner. Bing matters a little too, because OpenAI uses Bing in part for ChatGPT search, and Bing's crawler re-read none of these changes.

Why can ChatGPT or Perplexity show my update before their crawlers come back?

ChatGPT and Perplexity can open your page live while answering a question, and a live visit reads the current version. OpenAI says that when users ask a question, ChatGPT "may visit a web page with a ChatGPT-User agent"1. Perplexity says Perplexity-User "might visit a web page to help provide an accurate answer"5.

We saw one such visit in our window. ChatGPT-User fetched our homepage about 14 hours after we changed its headline. We can't tell whether a customer's question or one of our own ChatGPT tests triggered it.

You can't trigger these visits for your customers. That's one reason the same question can show your new price one day and the old one the next.

This is different from a brand-new page, where the first job is getting found at all; our new-page timeline covers that.

What can't our logs tell me about how AI picks up website changes?

  • Other websites. This is one small site over a few days. A busy site with many links to it may be re-read more often.
  • What the answers said. A re-read isn't an answer. Our live re-check of ChatGPT and Gemini answers hasn't run yet; the update log below says why.
  • Every route in. We only see requests that reached our server. Google and Bing can also learn about a page in other ways.

How do I get ChatGPT, Gemini and Perplexity to pick up my pricing page change faster?

You can't set the date, but you can make sure the next visit sees one clear, current version.

  1. Request EasyFound's free check. See which version of your details ChatGPT gives customers today, then go through it with us on a free call.
  2. Remove the old price everywhere you control. Check your other pages, PDF price lists, Facebook posts and directory listings. An AI that can't reach your updated page can still quote any of them.
  3. Change your page's "last updated" date when the facts change. Google says it uses a sitemap's last-modified date (lastmod) if it's "consistently and verifiably" accurate6. Only two of the 46 articles we changed moved that date.
  4. Ask Google to re-crawl the page with Search Console's URL Inspection tool. Google says this doesn't guarantee inclusion, and asking twice won't make it faster.
  5. Re-check the answer after a week, not the next morning, with the same customer questions each time. Keep a simple change log so you know which version you're looking for.

EasyFound, an AI SEO service for Malaysian businesses, checks six AI tools in English, Malay and Chinese and finds where an old detail is still being picked up. The free check is below.

Which version of your page is AI showing?

See what ChatGPT tells customers about your business today, old details and all, then go through it with us on a free call.

Frequently asked questions

How often do AI tools update their knowledge — is it days, weeks, or months before they pick up changes we make to our site?

No AI company promises a time. For answers built from web search, Google says crawling can take anywhere from a few days to a few weeks, and OpenAI and Perplexity publish no timing for a changed page. On EasyFound's own website in early October 2026, ChatGPT's search crawler re-read 6 of 87 page changes before the page changed again or our logs ended, the quickest within two hours; half the changes were a single added link, and some were watched for only a day or two. Facts an AI learned in training generally change only when the model is updated.

Why does ChatGPT still show my old price after I updated my website?

Most likely it is answering from an earlier copy of your page or from another site that still shows the old price. ChatGPT's search crawler, OAI-SearchBot, doesn't re-read every page soon after it changes: on EasyFound's own site in October 2026 it re-read only a few changed pages in the following days. ChatGPT can also open a page live with its ChatGPT-User agent when a question needs it, which shows the current version. Check that no old price is left on your other pages and listings.

Can I make ChatGPT or Perplexity re-read my page after I change it?

Not directly. OpenAI and Perplexity describe no tool for asking them to re-crawl a page. What you control is access: allow OAI-SearchBot and PerplexityBot in robots.txt and in your firewall. For Google, which feeds AI Overviews and AI Mode, you can request indexing of a changed page in Search Console's URL Inspection tool, though Google says that doesn't guarantee when or whether it appears.

Does requesting indexing in Google Search Console update Gemini and AI Overviews?

It can help Google's own AI features, because a page must be indexed in Google Search to be a supporting link in AI Overviews or AI Mode. Google says a crawl request doesn't guarantee inclusion and that crawling can take a few days to a few weeks. Google doesn't say whether the Gemini app uses the same index for every answer; its developer documentation says Gemini's Google Search grounding connects it to real-time web content.

How often will we re-check how fast AI shows website changes?

We plan to pull our server logs again each Wednesday and count which crawlers re-read the pages we changed. When our API access allows, we will also ask ChatGPT (OpenAI's API, web search on) and Gemini (Google's API, Google Search grounding) three questions whose answers depend on text we changed, twice each, and record whether each answer gives the new version, the old one, or neither:

  • our homepage headline, changed on 4 October 2026;
  • one row of the table in our website article, corrected on 5 October;
  • one line of our homepage FAQ, changed on 6 October.

Perplexity has no API in our setup, so for Perplexity we rely on its documentation and our server logs. We don't promise any outcome; the log records what we find.

Updated:

  • 7 October 2026: first entry. Server logs to 6 October, 15:52 UTC: the crawler figures above. The ChatGPT and Gemini answer re-checks did not run and are still pending: our OpenAI API account was out of credit, and Google's Gemini API returned "high demand" errors on three tries. Next: run the ChatGPT and Gemini re-checks first, then repeat the logs.

Sources

Our data: EasyFound, Did AI and search crawlers re-fetch easyfound.co pages after they changed? Every request that reached easyfound.co's server from 25 September 2026, 15:35 UTC, to 6 October 2026, 15:52 UTC (9,872 requests in Railway's HTTP logs). A change counts when a page's source file differs between two versions of the site that served traffic, from 2 to 5 October; it is watched until the page's next change or the end of the logs, from under two hours to about four days. Crawlers were identified by user agent and counted only when the IP address was in the company's published list. Site-wide design changes, such as menus, aren't counted as page changes. Cloudflare cache hits never reach our server, so they aren't counted and every figure is a minimum. Of the 87 changes, 44 were a single added internal link. Download the CSV.

Other sources:

  1. OpenAI, Overview of OpenAI Crawlers, read 6 October 2026 (link)
  2. Google Search Central, Ask Google to recrawl your URLs, last updated 10 December 2025, read 6 October 2026 (link)
  3. Google Search Central, AI features and your website, last updated 10 December 2025, read 6 October 2026 (link)
  4. Google AI for Developers, Grounding with Google Search, read 6 October 2026 (link)
  5. Perplexity, Perplexity Crawlers, read 6 October 2026 (link)
  6. Google Search Central, Build and submit a sitemap, read 6 October 2026 (link)

The results are shared under CC BY 4.0: you're free to reuse them, with credit to EasyFound.

Crawlers change their schedules; treat these figures as a dated measurement of one website.

Research by Janice Pang, EasyFound.