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What is a reverse look-up?

April 26, 2017Look-Up reverse

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Posted

What is a reverse look-up?

2 Answers

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Anonymous Posted

Reverse ip helps to finding how many sites hosted in same ip address ..You can check the details at Whoisxy.com/ip-to-domain.aspx
You can find Resolved Hosts and Reverse IP Hosts details here.

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Posted

Most DNS queries involve looking up a domain name to find its IP address, i.e. its “A” record(s). However, there are instances where a lookup is done on an IP address to find its domain name . The process of translating from an IP address to a domain name is termed a “reverse look-up”. A DNS PTR record (also called a reverse pointer) must exist for an IP address for a reverse lookup on the address to work. The name of the PTR record is determined by the IP address – by convention, you reverse the IP address and append the string in-addr.arpa to create the domain name. For example, to provide a reverse lookup for the IP address 12.0.1.77, you would create a PTR record with the domain name 77.1.0.12.in-addr.arpa.