Popular error 404 pages
The next section deals with 404 pages. These are pages that do not exist on your site, but for some reason they are visited by search engines, people or robots. This section is also quite important for analysis. Third-party services do not monitor this information, yet it is very important for a site owner. Using these pages you can figure out who or what collects information on your website, as a rule it is crawlers or spiders. For example, if you see a lot of hits on such a page, it may mean that the site is scanned and monitored. The scanning may be aimed at finding vulnerabilities, standard security gaps of the site, possibilities for unauthorized access to your site or a way to introduce a malicious code. This information will be useful for administrators and programmers and it can help reveal hidden threats before they are implemented.
