DNS latency is important to measure because it shows how users perceive the responsiveness of the DNS service is.
Most users won't know it's the DNS that is slow, but it has a direct impact on how they perceive the speed of the internet service in general.
The DNS Cache service is intended to promote the speed of resolutions by using the storage of records in a memory database and can also use a long retention memory base (Redis)
The DNS Cache service supports DNS-over-TLS and DNS-over-HTTPS which allows DNS clients to encrypt their communication.
In addition, it supports various modern standards that limit the amount of data exchanged with authoritative servers.
These standards do not only improve privacy but also help making the DNS more robust.
The most important are Query Name Minimisation, the Aggressive Use of DNSSEC-Validated Cache and support for authority zones, which can be used to load a copy of the root zone
Your computer uses recursive DNS as the first step to connect to places on the Internet.
Unfortunately, so do cyber criminals. Malware, ransomware, phishing and other scams use DNS servers to look up and connect to infrastructure that is set up by cyber criminals to power these attacks
The DNS Firewall feature inside the DNS Cache service is able to analyze requests and answer before forward them to applications ( browsers, softwares systems… ).
Search engines such as Qwant, Bing; Youtube, DuckDuckGo, Yandex, Pixabay offer a way to impose SafeSearch on all browsers and devices using your network. To do this, the The SafeSearch feature is used, which cannot be overridden at the browser level.