Google Search Console Is a Tool That Delivers Plentiful Information
The most rudimentary step in any newly launched website's campaign to appear on relevant SERPs generated on Google's search service is to allow Google's crawlers to discover and index the website and its pages to begin with. Since search engines' crawlers in general cannot discover a website that is effectively confined to a computer or server that exists in an isolated state, websites' owners need to establish their profiles on the landscape of the Internet by spreading awareness and making links appear that point to them. Today's social media culture makes opening a website to the attention of the crawlers as easy as maintaining rudimentary profiles on established social media outlets, but the art of performing enough SEO-related steps to make the website appear in high positions on SERPs is constantly evolving as a field of study.
However, since web crawlers will not discover and index any page on a website if no links pointing to it exist whatsoever and the website features an incomplete sitemap, web designers need to be mindful of avoiding letting any of their pages be orphaned as they change their pages' contents and rearrange their internal links. Surprisingly, anyone who uses Google is free to use its iconic search service to essentially generate a full list of every page on a website that is currently indexed. Entering the URL of the website's primary landing page into the URL bar but replacing the letter sequence that usually consists of "https://" with "site:" generates a SERP that lists every indexed page associated with that domain, and the listed number of results is a fair indicator of the number of pages that have been indexed.
However, Google Search Console is widely considered a far superior method of working out the precise number of pages that have been indexed and identifying which ones are currently not indexed at all. Whereas the aforementioned method is subject to the aspects of the search service's algorithms that provide estimates based on incomplete data, the Search Console provides functions that draw directly from Google's database of collected information about the website. For more information click here https://www.reddit.com/r/SEO/comments/bh5ynv/howtofindthenumberofindexedpagesof_your/.