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Domain DNS Lookup
Domain fb.com DNS records ( whois )
A
IPv4 address TTL
157.240.27.35 60
CNAME
Cname Data TTL
TXT
Records TTL
586957ce-d11e-4efa-9fe5-a887498bf8383600
MS=ms569271463600
atlassian-domain-verification=I7HLjLnlhJiDT58wzrru2Pd/2cRWa3AKlgCjDPOO43GMP7H0QuafH6eBts3D1GaP3600
v=spf1 redirect=_spf.fb.com3600
G3X1k1XGYGra1nUpTv7Rdk2wAEFHfkKIr9/4/6+Nu67Ks9cR8xaiqAZPPhis9lGD6mb/+9vygIr4QKXIpxIc7w==3600
I2B7AuxY6G1G_NeiaHF-9A0zn-3NDBnlOBi4zItNCU83600
smartsheet-site-validation=sB5xgx-1nsnQCgORYUhnyDG3Jr739OxJ3600
mentimeter-16bdc82d-93be-47de-a6d4-fd6adb17c4033600
parkable-domain-verification=N89SxXel0S4pUXDFVpckFmXIO9MUvN4Or0bO_Lcb8Os=3600
docusign=ad7f789d-eff1-4283-9d90-fdc9484527e13600
smartsheet-site-validation=r-TtxwzdAh2KN_Zi6mTLGu02fz-9vQU43600
google-site-verification=Dsycvk_Ky3uQjdvuPrI_Z6A98lWghNTntdS4LuATOj83600
mentimeter-8599dcd1-e0da-4326-882e-7570e7c942fb3600
SOA
Primary NS Responsible Email TTL
a.ns.facebook.comdns.facebook.com3600
NS
Canonnical Name TTL
d.ns.facebook.com 28724
a.ns.facebook.com 28724
b.ns.facebook.com 28724
c.ns.facebook.com 28724
MX
Address Perference TTL
mxb-00082601.gslb.pphosted.com 10 4166
mxa-00082601.gslb.pphosted.com 10 4166
AAAA
IPv6 address TTL
2a03:2880:f13f:83:face:b00c::25de 60

What is a DNS lookup?

A DNS lookup typically refers to the process of converting easy to remember names called domain names (like www.google.com) into numbers called IP addresses (like 8.8.8.8).

Computers use these numbers to communicate with each other on the Internet, but these numbers would be difficult for humans to remember and can change from time to time when network configuration changes are required.

What DNS record types can be looked up?

A DNS lookup typically refers to the process of converting easy to remember names called domain names (like www.google.com) into numbers called IP addresses (like 8.8.8.8).

The DNS lookup tool lets you perform a DNS lookup for any domain name on the below record types.

A Record Lookup - Address or IPv4 DNS records, these store IP addresses for domain names.

AAAA Record Lookup - Address v6 or IPv6 DNS records, same as A records but store IPv6 IP addresses.

CAA Record Lookup - Certificate Authority Authorization DNS records are used to store which certificate authorities are allowed to issue certificates for the domain.

CNAME Record Lookup - Canonical Name or sometimes known as Alias records are used to point to other DNS records. Often used for subdomains like www.

MX Record Lookup - Mail Exchanger DNS records are used to store which email servers are responsible for handling email for the domain name.

NS Record Lookup - Nameserver DNS records store the authoritative nameserver for a domain name.

PTR Record Lookup - Pointer or reverse DNS records. This is the opposite of A or AAAA DNS records and is used to turn an IP address into a hostname.

SOA Record Lookup - Start of Authority DNS records store meta details about a domain name such as the administrator contact email address and when the domain last had changes made to its DNS configuration.

SRV Record Lookup - Service DNS records store protocol and port numbers for services offered by the domain name, for example VoIP or chat server.

TXT Record Lookup - Text records are used to store notes as DNS records, however they are typically used to store configuration settings for various services like SPF records which are used to define which email servers are allowed to send email from the domain or verification codes for some webmaster tools.

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