What to Know about Domain Names


  • Created date: 20220423
  • Updated date: 20220423

It is cool to own your own domain names for your online profiles. However, except for being an easy to remember name for IP addresses, domain names can do a lot of other things.

Topics

DNS Record Types

SOURCE: https://en.wikipedia.org/wiki/List_of_DNS_record_types, List of DNS record types

SOURCE: https://en.wikipedia.org/wiki/List_of_DNS_record_types#/media/File:All_active_dns_record_types.png

TTL

TTL stands for time-to-live which specifies how how any DNS resolver is suggested to hold the DNS records in cache.

The TTL values set have an effect when changing DNS records for domain names. The larger the values are, the slower the new DNS records will take effects.

Different people have different opinion as for which values to use.

NSLookUp.io gives the following suggestion which I think reasonable.

SOURCE: https://www.nslookup.io/blog/what-is-a-good-ttl-for-dns/


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