DNS/US-Govについて、ここに記述してください。

[[DotGov]] を見よ。

https://www.bleepingcomputer.com/news/security/us-govt-rolls-out-new-dns-security-measures-for-gov-domains/

US Govt Rolls Out New DNS Security Measures for .gov Domains
By Sergiu Gatlan

    July 17, 2019 02:37 PM

The DotGov Program "operates the .GOV top-level domain (TLD) and makes it available to US-based government organizations, from Federal agencies to local municipalities," as per the U.S. General Services Administration (GSA).

Starting today, domain point of contacts will automatically be sent email alerts whenever the official .gov registrar will make DNS changes:

In response to recent incidents affecting other top-level domains, authorized .gov domain POCs will now receive a system-generated email when a change is made to their DNS in the DotGov Registrar.

The email will alert the POCs that a change was made to their DNS information and include instructions for mitigation should it be necessary.

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"If you’re planning to make critical changes to your name servers over the weekend, please contact us before 5 p.m. on the prior Thursday to ensure the information propagates during weekend hours," adds the registrar.