Enter a URL
It checks factors like:
If Google has indexed your page and included it in its index acreage,
If Google were to crawl and index the content of your page to allow your page to be displayed in search results
If your page has any crawling issues or limitation to crawl your website fully
The Page Index Checker shows the time when Google the last time visited and crawled through your URL. This helps in knowing how recent Google has been in crawling your site.
It also appears to be of the order of the number of pages from your domain known by Google. This provides information on just how well Google has actually scoured your website.
Also, it determines if a page has a manual action threat or any algorithm threat imposed on it. This assists in determining the likely cause for poor search rankings of any specific page.
Most of the times after making changes to the site, it becomes rather challenging to determine how these changes are going to affect the search visibility of the site, sometimes one might even end up making the site worse and that is why the Google Page Index Checker can really help in this. It can be quite useful in terms of better understanding the effort to ramp up the traffic and the rankings.