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For years, the honest answer to “when will Google notice my changes?” has been a shrug and an anecdote. That changed this week. At Search Central Live Deep Dive Europe in Barcelona, Google’s Gary Illyes put actual numbers on the table, from a 20 hour average for discovering a new URL to a 3 to 6 month average for recovering from a core update, and the gap between “typical” and “slowest” cases is wide enough to reshape how agencies set client expectations.
Executive Summary
Here’s what you need to know before diving in:
- Gary Illyes presented specific timing ranges for crawling, indexing, and serving at Search Central Live Deep Dive Europe in Barcelona (September 30 to October 2, 2026), an event confirmed on Google’s own Search Central Blog.
- New URL discovery runs about 20 hours typically, but can take weeks or never happen at all; end to end indexing typically takes about 1.5 hours once a URL is in the queue.
- Core update recovery is the slowest process Google disclosed: 3 to 6 months typical, stretching to 6 months or a full year in slower cases.
- Illyes stressed that these stages are interconnected, so a delay at the crawling stage pushes back every stage that follows it.
What Google Actually Said
The data came out of a three day Google Search Central Live Deep Dive event in Barcelona, Spain, which Google’s own developer blog confirmed was happening with a lineup of Google speakers and community presenters (Google Search Central Blog). Gary Illyes used the event to walk through, stage by stage, how long it typically takes for a page to move from “published” to “ranking normally,” and how long the slowest cases can run.
On the crawling side, Illyes put new URL discovery at roughly 20 hours typical, with a worst case of weeks or, for some URLs, never. Refreshing a URL Google already knows about takes about 30 days typical. Sitemap processing runs about 24 hours typical but can stretch to 14 days, and robots.txt updates are picked up in about 24 hours typical, with a slowest case of around 25 hours, a narrow window compared to everything else on the list (reported by Search Engine Roundtable and Search Engine Journal from attendee recaps of the Barcelona session).
Indexing has its own range. End to end indexing, meaning the full trip from crawled to indexed, runs about 1.5 hours typical but can take months or never resolve. Canonicalization changes take 1 to 3 weeks typical, and a full site move takes 1 to 3 months typical, with slower cases running 6 months to over a year.
The number that matters most for client reporting is core update recovery. Illyes put that at 3 to 6 months typical, with slower cases taking 6 months to a full year. Manual action removal, by contrast, is much faster: 1 to 2 weeks typical once the issue is fixed and reconsideration is granted.
Illyes also made a point that agencies should take seriously: these stages are not independent. A delay in crawling delays indexing, which delays serving changes, which delays any ranking recovery. As ppc.land summarized from the session, Illyes emphasized that “many of the processes are linked,” so a slow crawl at the front end compounds into a much longer wait for visible results.
It’s worth noting, as both Search Engine Roundtable and Search Engine Journal flagged, that Illyes later described the numbers as “an exercise to see if the audience can relate to,” meaning these are Google’s own working ranges rather than a formal, published SLA. No official Google Search Central Blog post with these exact figures had gone live as of this writing; the data comes from attendee recaps of the live session.
ARC Marketing’s Take
“Clients ask us every week why a fix they made on Monday hasn’t shown up in rankings by Friday,” said ARC Marketing. “Now we have Google’s own numbers to show them why that question doesn’t make sense. A core update recovery timeline of three to six months isn’t a failure on our end, it’s the baseline.”
ARC Marketing has already changed how it structures client reporting cadences in response to this kind of data: rather than measuring technical fixes against weekly ranking movement, we now set a minimum 45 day measurement window before drawing conclusions from any crawl or indexing related change, and we flag core update recovery explicitly as a 90 to 180 day metric in client dashboards instead of a monthly one. We’d also predict that agencies who keep reporting week over week ranking swings as if they reflect real cause and effect will see client churn rise over the next two quarters, simply because Google is now handing clients the receipts to question that framing.
Sources
- Search Engine Roundtable, “Google: How Long It Takes Google Search For Crawling, Indexing & Serving,” October 5, 2026: https://www.seroundtable.com/google-crawling-indexing-serving-data-42225.html
- Search Engine Journal, “Google Shows How Long Crawling, Indexing & Recovery Can Take,” October 2026: https://www.searchenginejournal.com/google-crawling-indexing-recovery-timing-ranges/591829/
- ppc.land, “Google says new pages take about 20 hours to be found, some never are,” October 2026: https://ppc.land/google-says-new-pages-take-about-20-hours-to-be-found-some-never-are/
- Google Search Central Blog, “Search Central Live Deep Dive Europe 2026: Meet the community speakers,” September 2026: https://developers.google.com/search/blog/2026/09/scl-dd-europe-2026-community-speakers