This provides you with information

[hasibaakterss3309]

Robots.txt file issues . This file is used to tell search engines which pages to crawl and which not to. However, when configured incorrectly it can end up blocking key pages or even the entire site. On the other hand, the lack of a robots.txt file makes crawling difficult as the crawler does not have those directives to follow. The same applies to sitemaps.

Multiple redirects or 404s . Redirects to non- bulgaria mobile database existent pages (404) and multiple redirects confuse search engines. This not only makes indexing difficult, but also negatively affects your ranking in the SERPs when indexing is successful.
Duplicate content . This means pages with similar content and keywords , but different URLs. If canonical tags or redirects are not used , the Google crawler will not know which version to index, which prevents indexing.

Noindex tags . As their name suggests, these tags prevent indexing. They are used to temporarily hide test pages or URLs that do not add value to the site's positioning. When used in a non-strategic manner, they are considered an error.
Loading issues . A page that takes too long to load won't always be fully crawled by Google. Server errors (such as a 500 error) can cut off the crawler 's access to the page, causing the indexing to be half-finished.

All of these can be discovered using the “Indexing Status” section in Search Console. that will help you fix any errors that are preventing indexing.