Cyberattacks often start with a single click, making content filtering essential for modern security. DNS and URL filtering serve different purposes in protecting web access. DNS filtering operates at the Domain Name System level, blocking entire domains before a connection is made—preventing threats like phishing sites from loading. For example, if a user clicks a link to malicious-phish.com, DNS filtering stops it from resolving. URL filtering, on the other hand, works at a more granular level, inspecting specific URLs within a domain. This is crucial when a generally safe site hosts malicious files, such as example.com/freeware.exe. Combining both methods creates a layered defense strategy against evolving cyber threats.

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