DNS 查询

检查 A、MX、NS 记录。

ALL
A
AAAA
CNAME
MX
TXT
NS
SOA

了解 DNS 记录

主要记录类型

  • A Record: Maps a host to an IPv4 address. The most fundamental record.
  • MX Record: Specifies mail servers for email delivery. Critical for email functionality.
  • CNAME: Aliases one name to another (e.g., www to non-www).

验证与安全

  • TXT Record: Used for SPF, DKIM, and DMARC configuration to prevent email spoofing, as well as domain ownership verification for Google/Meta services.
  • NS Record: Delegating authority to specific name servers.

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