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How are some TLDs less stable than others? Isn't DNS distributed? (I'm not a networking engineer.)
by Hydraulix989 7y ago
How are some TLDs less stable than others? Isn't DNS distributed? (I'm not a networking engineer.)
- kevingadd 7y agoIf you have a domain under .io or .com you're relying on the root servers for that TLD to be run properly. For .io, for example, these appear to be the roots: https://www.iana.org/domains/root/db/io.html https://www.iana.org/domains/root/db/io.html You also risk having bad things happen to your domain as a result of social engineering or other problems at the administrator and the risk of that may vary between TLDs since they're run by different companies.
- deleted 7y ago[deleted]
- mey 7y agoEach Top level domain has an administrator responsible for running that tld. Including running it's DNS. The root domain ".", routes the request to the correct TLD DNS server. So technically, first you ask the root server for the DNS server of .com, then ask .com for google.com, etc. (Technically the DNS entry is google.com. ) .com is administrated by Verisign. https://en.m.wikipedia.org/wiki/List_of_Internet_top-level_domains https://en.m.wikipedia.org/wiki/List_of_Internet_top-level_d... has more info.
- em-bee 7y agosimplified, dns being distributed means that an outage in one domain doesn't affect an outage in another domain. but each domain still can and should protect itself against outages by having multiple servers for that domain. a second level domain is usually required to provide at least two DNS servers for that domain. a top level domain like .io better have a dozen or more spread over multiple networks.