binfield tools dns-lookup

dns-lookup

DNS lookup.

Every DNS record for a domain, checked against three public resolvers so you can see whether they agree.

questions

Good to know

Which DNS records can I see?

A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records, plus DNSSEC details where they exist.

Why do the resolvers show different answers?

Each resolver remembers answers for the record’s TTL. Right after a change, some will still show the old value. This is called propagation.

How long do DNS changes take?

Usually minutes to a few hours, depending on the TTL. Allow a day to be safe.

Which resolvers does it use?

Cloudflare, Google and Quad9, all public and free.

$ ls related

$ mail

SPF and DMARC checker

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Whois lookup

Who registered a domain, the registrar and the key dates.open →$ whois

Domain checker

Owner, DNS, hosting, email, security and uptime in one report.open →$ read

What is DNS? Records explained in plain English

DNS is the internet’s address book. It turns the name people type into the address of the server that…open →$ read

How to set up SPF, DKIM and DMARC for your domain

These three records stop other people sending fake email as you, and help your real email reach the inbox…open →

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