Try the full version of PR-CY: find errors on internal pages and fix them with the help of the service's tips.
It is impossible to know how many pages Google correctly indexed on the site. The search engine does not maintain a database by URLs.
The approximate number of pages in the search results will be shown by the site operator, which we rely on. The number can be distorted by pages that are banned from indexing in robots.txt, but hit the search results because of external links to them.
The “Indexing Status” section in Google Search Console will show a slightly more correct number, but this data can also be distorted by the filters’ application.