HTTP Header reponses of us-mg5.mail.yahoo.com is the information we get when HTTP request sent to a server from connecting clients(e.g. chrome, firefox). When you input an address into your browser it sends a request to the server hosting the domain and the server responds. HTTP Header information is not directly displayed by normal web browsers like chrome, firefox etc.
There are total 8 records in domain name system (DNS) of us-mg5.mail.yahoo.com, which includes 5 Address(A) records, 2 IPv6 Address(AAAA) records and 1 Canonical Name(CNAME) record.
Host Name of the node to which this record pertains
Type Type of resource record in symbolic representation.
IP/Target
TTL Count of seconds that the resource record stays valid.
Extra Info Additional resource record-specific data
ds-any-ycpi-uno.aycpi.b.yahoodns.net
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
216.115.107.206
225
ds-any-ycpi-uno.aycpi.b.yahoodns.net
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
98.138.81.73
225
ds-any-ycpi-uno.aycpi.b.yahoodns.net
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
98.138.81.82
225
ds-any-ycpi-uno.aycpi.b.yahoodns.net
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
98.138.81.72
225
ds-any-ycpi-uno.aycpi.b.yahoodns.net
A Address Record: A 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host, but also used for DNSBLs, storing subnet masks in RFC 1101.
98.138.81.83
225
ds-any-ycpi-uno.aycpi.b.yahoodns.net
AAAA IPv6 Address Record: A 128-bit IPv6 address, most commonly used to map hostnames to an IP address of the host.
239
ipv6: 2001:4998:4:2::3001
ds-any-ycpi-uno.aycpi.b.yahoodns.net
AAAA IPv6 Address Record: A 128-bit IPv6 address, most commonly used to map hostnames to an IP address of the host.
239
ipv6: 2001:4998:4:2::3000
us-mg5.mail.yahoo.com
CNAME Canonical Name Record: Alias of one name to another: the DNS lookup will continue by retrying the lookup with the new name.