To check if a webpage has been indexed by Google, you can use the “site:” operator in Google search. For example, if you want to check if the webpage “www.example.com/page1” has been indexed by Google, you can search for “site:www.example.com/page1” in Google. Make sure there are no spaces between the colon (:) and the www.
If the webpage has been indexed, it will appear in the search results.
Another way to check if a webpage has been indexed is to use Google Search Console, which is a free tool provided by Google for website owners. With Search Console, you can see which pages on your website have been indexed by Google and whether there are any issues with those pages.
To use Search Console, you will need to verify that you are the owner of the website by adding a small piece of code to your website or by linking your Google account to your website.
Keep in mind that it may take some time for a newly created or updated webpage to be indexed by Google, as the search engine needs to discover and crawl the page before it can be included in the search results.
If you have recently created or updated a webpage and it does not appear to have been indexed, you may need to wait a few days for Google to crawl and index it.
Read about how to speed up the indexing process here.