Ask how long SEO takes and you will usually get the same frustrating answer: it depends.
That answer is not very helpful when you have just published a new page, changed an important title or launched a new website. You want to know when Google will notice the work and when you might see a result from it.
Google recently gave us a little more context. At Search Central Live Deep Dive Europe, Google’s Gary Illyes shared internal timing ranges for several common search processes. They covered everything from discovering a new page to processing a website migration and reassessing a site after a core update.
Before getting into the numbers, there is an important bit of context.
The figures were presented during a live Google event and later shared in an attendee recap from ROAST. Google has not published the complete data or explained exactly how the typical timeframes were calculated.
Illyes also noted that many of these processes depend on one another. Google cannot index a page before it crawls it, for example. If crawling is delayed, everything that comes after it may be delayed too.
So, we should not read “20 hours” as a promise that Google will discover every new page within 20 hours. These numbers are better used as reference points for setting expectations.
These are some of the figures that are most relevant to businesses:
| Change or process | Reported typical timeframe | What it means |
|---|---|---|
| Google discovers a new page | About 20 hours | Google may learn that the page exists within a day. That does not mean it will immediately be indexed or rank. |
| Google refreshes a known page | About 30 days | An update to an existing page may not be noticed right away, particularly if Google does not visit it often. |
| Google processes a sitemap | About 24 hours | A sitemap can help Google find your pages, but it does not guarantee that all of them will be indexed. |
| A title or search-result description changes | 1–2 days | The change may appear fairly quickly after Google revisits the page, although some cases can take much longer. |
| Google processes a canonical change | 1–3 weeks | If several similar URLs exist, Google needs time to review the signals and decide which version to show. |
| A website migration settles | 1–3 months | Rankings and traffic can fluctuate while Google follows redirects, finds the new pages and transfers signals. |
| A manual action is reviewed and removed | 1–2 weeks | Google still needs to review the reconsideration request after the problem has been fixed. Ranking recovery may take longer. |
| A site recovers after improvements following a core update | 3–6 months | Google needs time to recrawl and reassess the improvements, sometimes during a later core update. |
The slower cases can take considerably longer. A website migration or recovery following a core update may take up to a year, while some pages may never be crawled or indexed. These ranges are reference points, not a countdown. Simply waiting longer will not solve an underlying SEO problem.
The reported 20-hour timeframe for discovering a new URL sounds encouraging, but discovery is only the beginning.
Google first has to find the page. It then has to crawl it, understand the content, decide whether to add it to the index and work out which searches it may be relevant for. Even if the page is indexed, that does not mean it will immediately appear near the top of the results.
It is a little like opening a new store. Opening the doors makes it possible for customers to visit, but it does not guarantee that they will know about it or choose it over the alternatives.
Instead of focusing only on how quickly Google discovers the URL, it is worth asking:
If the foundation is right, the page has a much better chance of performing. If it is not, repeatedly asking Google to crawl the page is unlikely to fix the real issue.
It can be confusing when you change a service description, page title or important offer and Google continues showing the old version.
The reported figures help explain why. Google reportedly takes about 30 days to refresh a known URL in a typical case. Once it returns, a new title or search-result description may appear within one or two days.
In other words, the visible update may happen quickly, but only after Google has revisited the page. Frequently updated or important pages may be crawled more often, while other pages can take longer.
Internal links, accurate sitemaps and a technically reliable website can make important pages easier for Google to find. They cannot force Google to update a search result immediately.
A website migration can include a new platform, design, domain, navigation or URL structure. Visitors may see the new website immediately, but Google still has to revisit the old URLs, follow the redirects, discover the replacements and reassess their signals. That is why the reported one-to-three-month range makes sense.
Some ranking and traffic fluctuations during that period are normal. However, a large and sustained loss across important pages should not simply be ignored for three months because the migration is “still settling.”
We recently worked on a website redesign for a client that involved moving from a legacy custom CMS to HubSpot. Preparation began in fall 2025, and the final switch took place in February 2026. This was much more than a visual update: the site contained nearly 450 pages covering 10 locations and more than 35 programs.
The project included reorganizing the site structure, changing URLs, rewriting content and mapping old pages to their most relevant replacements. Around 100 outdated or thin blog posts were also removed rather than automatically carrying everything over to the new website.
After launch, Google still needed to follow the redirects, discover the new URLs and understand how hundreds of pages fit into the new structure. We continued monitoring redirects, indexing, sitemaps and organic visibility while those changes were processed.
By the six-month mark, the results were visible. Organic traffic had increased when compared with the equivalent seasonal period, while the faster website also delivered better Core Web Vitals performance.
Those improvements followed months of planning, content work, technical implementation and post-launch monitoring. This does not mean every migration will produce the same results within six months, but it shows that meaningful improvements can become visible within the broader timeframe Google described.
After a migration, someone should be checking:
There is a difference between giving Google time to process a well-planned migration and waiting without knowing whether it was implemented correctly.
The reported three-to-six-month timeframe for recovery following a core update may be the hardest one for businesses to hear.
When traffic drops, the natural response is to change a few pages and hope rankings return. A broad Google update, however, is not usually a simple penalty that can be switched off once one issue is fixed. It may reflect a wider reassessment of which pages provide the most useful results.
Real improvement can involve updating important pages, consolidating weak or overlapping content, adding firsthand knowledge, making information easier to verify and improving the experience for visitors. Google then needs to recrawl those changes and compare the site with the other options available to searchers.
Some improvements may help sooner. Others may not be fully reflected until a later update. The three-to-six-month figure gives us a better idea of what recovery can look like, but it is not a reason to make changes and then ignore the site for half a year.
SEO requires patience. But there is a difference between giving a change enough time and simply hoping a problem will fix itself.
It may be reasonable to wait when:
It is worth investigating when:
The timeframes provide context. They do not replace actually checking what is happening.
These figures also reinforce something that can easily get lost when SEO is presented as a project with a beginning and an end.
A successful migration can protect existing visibility, but it will not keep every page accurate forever. A good service page may perform well today, but competitors can improve their content. Services change. Prices, locations and customer questions change. The way people search changes. Google’s systems and search-result formats change too.
SEO is closer to maintaining a physical business than installing a piece of software. Opening the doors is an important milestone, but you still have to update what you offer, answer customer questions, fix problems and keep up with the market.
Ongoing SEO does not mean changing pages just to look busy. It means reviewing what your customers and your data are telling you, then improving the website where there is a good reason to do so.
That might include:
Google’s reported ranges give businesses more realistic expectations. Some changes may become visible within a day or two, while migrations and recovery work may take months. They are not guaranteed deadlines, so the sensible approach is a balance of patience, active monitoring and continued improvement.
SEO rarely rewards panic. It also rarely rewards standing still.