Typical timeline
Small technical or on-page changes can be crawled within a few days on active sites, but ranking movement often takes longer. For many pages, a realistic window is two to twelve weeks.
What changes faster
Fixes that remove crawl blockers, broken canonical tags, noindex mistakes, or serious performance issues can show faster impact because search engines can process the page more correctly after the next crawl.
What takes longer
Content quality improvements, topical authority, link earning, and competitive keyword movement take more time. Search engines need to compare the page against other results and gather more confidence.
How to track it
Track the exact change date, affected URLs, crawl status, impressions, average position, and clicks. Do not judge a change from one day of ranking data. Compare several weeks before and after the update.