: How does Google bot know that my page content has changed? Let's say I've a page which is already indexed in Google Search. If I make a change to the content of that page, how would Google

@Michele947

Update your website to google search console. Add your sitemap to google search console and put google analytics code to your web page could easy to understand. if you want to update your content update through google search console and this could be easy to find by google that content updating has been done.

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@Gonzalez347

Google uses an algorithm to index your page at calculated intervals. The more frequent your updates are - more often the bot will index your page.


The bot only needs to compare the html which is on average around 10kb. To do proper comparison the bot is quite likely to hash the content, so if you got extra space it will be accounted for.
I've never used any types of timestamps for the bot to recognise changes
You can manually request for re-index using Google Search Console which takes about a minute to take effect. (You will need to add the domain to your google account to manage it with google tools, just like Analytics)


Even if your site is not often busy with changes or stale all together, the bots will index it at least 3 times a week. Search Console also displays when google indexes your site. I got a year old site which is indexed few times a ~3 times a week, because it's not very resource intensive task for google.

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