Domain Glossary
7 terms matching your filter
DMARC
An email security policy that instructs receiving servers how to handle emails that fail SPF/DKIM checks.
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DNSSEC (DNS Security Extensions)
Cryptographic extensions that verify DNS records haven't been tampered with — protection against spoofing.
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Glue Record
A special DNS record providing a nameserver's IP address when the nameserver is within the domain it serves.
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Root Zone
The top of the DNS hierarchy listing all TLDs and their nameservers — managed by ICANN/IANA.
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SOA Record (Start of Authority)
The first DNS record in a zone file — contains administrative data about the domain's DNS zone.
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Wildcard DNS
A DNS record using * to match any subdomain that doesn't have a specific record.
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Zone File
The file on a nameserver containing all DNS records for a domain.
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