Content filtering, also called web content filtering, refers to the use of software or even hardware-based solutions for screening and excluding content that is deemed intrusive, harmful, or objectionable on web pages, in emails, etc. It’s used by companies to implement an appropriate Internet usage and access policy.
For instance, to filter sites which are unrelated to work or host malware and exploits. Content filtering is also used at homes and schools to prevent children from accessing content that is offensive or questionable, such as hate and pornographic sites.
Source:
https://www.purevpn.com/content-filtering
