Bulk DNS lookup, many domains at once.
Paste up to 5 domains, pick the record types, and read every answer in one place. A, AAAA, MX, NS, CNAME, TXT, SOA and CAA.
8
record types per query
5
domains at a time
0
accounts required
One per line, or comma separated.
Presets
Nothing queried yet.
Add domains on the left, pick record types, and every answer lands here grouped by domain. 10 queries per day, no account.
What each record type tells you.
Read left to right when auditing a new domain.
A / AAAAAddress
IPv4 and IPv6 endpoints. A missing AAAA is fine; an unexpected A often means a forgotten host.
MXMail exchange
Which servers accept mail, in priority order. No MX means the domain cannot receive mail.
NSName servers
Who is authoritative. Mismatched NS between registrar and zone causes intermittent failures.
CNAMEAlias
Points at another hostname. A target that no longer resolves is a takeover risk.
TXTText
Holds SPF, DKIM, DMARC and verification strings. Two SPF records here is an immediate error.
SOAStart of authority
Serial and timers for the zone. A stale serial hints at edits that never propagated.
CAACertificate authority
Restricts which CAs may issue certificates. Absent means any CA can.
PTRReverse
Maps an IP back to a name. Sending mail without matching PTR hurts deliverability.
5 domains by hand, or every domain every day.
ZeroHook watches DNS across your whole portfolio, flags dangling CNAMEs and takeover risk, and keeps an audit trail of every change.