Domains & DNS
Why does a DNS query return NXDOMAIN? How negative caching works
After creating a DNS record, some queries can still return NXDOMAIN. A resolver may retain an earlier nonexistence response for a period determined from the SOA record.
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Domains & DNS
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Domains & DNS
How Does a CAA Record Restrict Certificate Issuance?
A CAA record lets you state which certificate authorities may issue certificates for your domain. Learn the record format, wildcard precedence and critical-tag cautions.
Domains & DNS
DNS records explained: A, CNAME, MX and TXT
Your website and email can share a domain while relying on different DNS records. Learn which record to change and what to check before you do.