Focusing on DNS queries and user profiling construction, starting from principles and risks, this article elaborates on feasible privacy protection strategies and considerations based on public standards and materials, avoiding speculative evaluations and hands-on operations.
A comparison of Plain DNS, DoT, DoH, and DoQ, covering their layered relationships, ports, performance differences, and suitable scenarios, with practical selection and configuration advice.
Introducing methods to implement DDNS without purchasing a domain name, using NullPrivate or AdGuardHome services
Introduces two ways to use the curl command to obtain DNS query results.
DNS is the entry point for almost all network requests. Resolving a domain name typically takes only tens of milliseconds, but these milliseconds determine which server the subsequent connection will point to, whether it hits a nearby CDN node, and whether it will be hijacked by the ISP or observed by certain intermediate nodes. This article is aimed at ordinary internet users, using a continuous narrative to explain the relationship between DNS and the internet experience.