domainSummarykrustofski.w3.org has one IP number , which also has a corresponding reverse pointer. validator.w3.org point to the same IP. w3.org is a domain controlled by three nameservers at w3.org themselves. All of them are on different IP networks. Incoming mail for w3.org is handled by two mailservers also at w3.org. They are on different IP networks. w3.org has one IP number. krustofski.w3.org is hosted on a server in United States.DNS Records
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