DNS

What DNS actually decides

Before any page opens, the device asks for the address of a name. That query is the most wasted control point on the internet, and the most useful when done right.

• 01How DNS turns a name into an addressWhat happens between typing an address and the page opening, why DNS is the best place to turn trackers off, and where it does not reach.
• 02Block trackers and ads at DNS levelHow a blocklist works in practice, why one profile per device beats a single rule, and why the ads do not all disappear.
• 03Encrypted DNS: what changes with DoH and DoTWhat encrypted DNS hides, who still sees the queries, and why the browser sometimes decides on its own which server to use.