HTTP Header reponses of big-red.com.hk 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.
HTTP/1.1 200 OK Date: Mon, 17 Dec 2012 12:02:46 GMT Server: Apache Accept-Ranges: bytes Content-Length: 484 Connection: close Content-Type: text/html
DNS Record Analysis
There are total 7 records in domain name system (DNS) of big-red.com.hk, which includes 1 Address(A) record, 1 Mail Exchange(MX) record, 4 Name Server(NS) records and 1 Start of Authority(SOA) 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
big-red.com.hk
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.
202.155.223.21
14400
big-red.com.hk
MX Mail Exchange Record: Maps a domain name to a list of message transfer agents for that domain.
big-red.com.hk
14400
pri: 0
big-red.com.hk
NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers.
dns1.hostingspeed.net
28799
big-red.com.hk
NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers.
dns4.hostingspeed.net
28799
big-red.com.hk
NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers.
dns3.hostingspeed.net
28799
big-red.com.hk
NS Name Server Record: Delegates a DNS zone to use the given authoritative name servers.
dns2.hostingspeed.net
28799
big-red.com.hk
SOA Start of Authority Record: Specifies authoritative information about a DNS zone, including the primary name server, the email of the domain administrator, the domain serial number, and several timers relating to refreshing the zone.