{
  "id": 10816642,
  "title": "DNS Records Explained — What A, CNAME, and TXT Records Actually Point To",
  "url": "https://urgent.news/2026/09/30/dns-records-explained-what-a-cname-and-txt-records-actually-point-to",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-30T00:40:54.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/susumun/dns-records-explained-what-a-cname-and-txt-records-actually-point-to-3of6"
  },
  "original_language": "en",
  "account": "DNS records serve as the building blocks for translating human-friendly domain names into computer-friendly IP addresses. There are three primary record types: A, CNAME, and TXT. To illustrate, let's examine their functions through two real-world examples involving our domain.\n\nAn A record is the most fundamental type. It directly maps a hostname, such as wpmm.jp, to a specific IPv4 address. This creates a straightforward connection - traffic meant for the domain is routed to that particular IP. When launching a new web server, an A record is typically the first configuration step.\n\nA CNAME record, on the other hand, treats one hostname as an alias for another. Instead of pointing directly at an IP, it indicates that the actual content resides elsewhere - at a different hostname. The key difference is that a CNAME record provides an indirect reference compared to the direct IP mapping an A record provides. However, there are limitations. A CNAME record cannot be paired with other record types at the same time, like MX or TXT. It also cannot be placed at the domain apex (e.g., wpmm.jp without a subdomain). Instead, an A record is used in such scenarios.\n\nTXT records are a bit different. They attach an arbitrary text string to a domain name rather than an IP or another hostname. Initially intended for human-readable notes, today they're almost exclusively used by machines for various purposes. Two common uses include proving domain ownership to external services through a random string confirmation and configuring email authentication protocols. In one instance, we added a TXT record for _dmarc.wpmm.jp, which enabled DMARC email authentication. DMARC combines SPF and DKIM checks to determine how to handle emails that fail these checks, providing a policy response.",
  "summary": "\"Configuring a domain\" usually boils down to \"adding a DNS record.\" Setting up a subdomain, improving email deliverability, proving ownership of a domain to some external service — the goals differ, but the actual task is often the same: add one line in a domain management panel. This post walks through three of the most common DNS record types — A, CNAME, and TXT — what each one actually points…",
  "key_points": [
    "A record maps a hostname to an IPv4 address for direct routing.",
    "CNAME record serves as an alias, pointing to another hostname indirectly.",
    "TXT record attaches text strings to domains for various machine uses."
  ],
  "editors_take": "Understanding DNS record types like A, CNAME, and TXT helps clarify how domain names are translated into IP addresses and how domains interact with external services and email authentication protocols.",
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}