Articles & Guides

What is DNS and how it works: the full path of a lookup, resolver roles, caching and TTL, private DNS over TLS and HTTPS, plus how to check records with dig.

How to configure DNS: change the DNS server on Windows 10 and 11, macOS, Android and your router, set domain A, CNAME, MX and NS records, then verify the result.

How to change the DNS server on Windows 10 and 11, macOS, Linux, Android, iOS and your router: step-by-step paths, PowerShell and resolvectl commands, verification.

The best public DNS servers of 2026 ranked: Cloudflare 1.1.1.1, Google 8.8.8.8, Quad9 9.9.9.9, AdGuard DNS, Yandex.DNS and OpenDNS. Addresses, filtering, DoH/DoT support, logging policies and how to measure resolver latency from your own network.

How to check a domain's MX record: a DNS check or dig, what the priorities and an empty answer mean, common mail problems and the link to SPF/DKIM/DMARC.

Two ways to connect a domain to hosting: change the NS servers or add an A record. Step by step, how long DNS takes to update, and how to confirm it worked.

DNS_PROBE_FINISHED_NO_INTERNET means Chrome cannot reach a DNS resolver. Causes and step-by-step fixes: flush DNS, reset Winsock, change DNS servers.

Understand the SOA DNS record: all fields (MNAME, RNAME, serial, refresh, retry, expire, minimum), the YYYYMMDDnn serial format, zone transfers, and dig checks.

What an SRV DNS record is per RFC 2782: the _service._proto.name syntax, how priority and weight work, examples for SIP and XMPP, and common mistakes.

What a TXT DNS record is and why you need it (verification, SPF, DKIM, DMARC, BIMI), the 255-character limit, quoting syntax, and how to add and verify it.