MxToolBox
mxtoolbox.com › DNSLookup.aspx
DNS Lookup Tool - DNS Tools - MxToolbox
This test will list DNS records for a domain in priority order. The DNS lookup is done directly against the domain's authoritative name server, so changes to DNS Records should show up instantly. By default, the DNS lookup tool will return an IP address if you give it a name (e.g.
NSLookup
nslookup.io
DNS Lookup
Online nslookup is a web based DNS client that queries DNS records for a given domain name. It allows you to view all the DNS records for a website.
A simple DNS lookup tool : programming
Posted in r/programming by u/jarrett__ • 4 points and 13 comments More on old.reddit.com
Reverse DNS Lookup with 123Reg
You're looking for updating your PTR records, I found this when looking for 123Reg PTR records https://www.123-reg.co.uk/support/servers/how-can-i-setup-a-reverse-dns-record-on-my-vps-server/ More on reddit.com
3
0
October 27, 2021Really awesome domain whois/dns lookup?
I like this one http://whois.domaintools.com/ More on reddit.com
9
3
June 5, 2014[deleted by user]
Hi Nice tool, and I had to try that out immediately. How does this actually work differently than the DNSleaktest.com ? I do get different results on your website, although your results seem to be more in line with what I experience. I have some strange phenomenon on a WireGuard connection. I have a VPN connection (specifying the Pihole as the DNS) to a Pihole running Unbound. When using the VPN and connecting to DNSleaktest.com , I get the Pihole's external IP address as the sole resolver. When doing the test on your site, I get the same IP address as the first resolver, but also 6+ Google resolvers on 172.253.X.X plus some on IP6 addresses. I also noticed, that during the VPN connection, that I still get some ads showing, whereas they should actually be blocked by the Pihole. While I guess it's a WireGuard problem, it might help me troubleshoot by understanding your checks a bit better. More on reddit.com
32
22
September 23, 2021What is a forward DNS lookup?
Forward DNS, also known as a forward DNS lookup, is one of the two different types of DNS lookup. This type follows the standard DNS query journey when you type in a URL or send an email and receive the related IP address in response to your request. This process allows an end client (your device) to translate a domain name or email address into the address of the device that would handle the server-side communication.
digicert.com
digicert.com › faq › dns › how-does-dns-lookup-work
How does DNS lookup work? | DigiCert FAQ
What is a reverse DNS lookup?
Reverse DNS, also known as a reverse DNS lookup, is the second type of DNS lookup. This lookup request is used to obtain the domain name related to an IP address. Reverse lookups are typically used by email servers to ensure the servers they’re receiving messages from are valid. To complete this process, the mail server must have a pointer (PTR) record established. This type of record informs other mail servers that its IP address is authoritative for sending and receiving mail for its related domain.
digicert.com
digicert.com › faq › dns › how-does-dns-lookup-work
How does DNS lookup work? | DigiCert FAQ
What is a query journey?
A query journey includes every step taken to translate the domain name you’re trying to reach into an IP address. The journey begins when you enter a web address into your browser. The recursive server is the query’s first stop. From there, the recursor contacts a series of authoritative nameservers to gain the information it needs to translate the domain name into a language the computer can read. Finally, the IP address of the desired domain is returned. DNS records set the rules and lay down the paths the query will travel along. They store all the relevant information servers need to prop
digicert.com
digicert.com › faq › dns › how-does-dns-lookup-work
How does DNS lookup work? | DigiCert FAQ
Videos
09:14
How To Lookup DNS Records With The dig Command - YouTube
12:22
How to use the nslookup command to query DNS - YouTube
07:47
Nslookup in 5 minutes. A command line utility for querying DNS ...
14:17
How to Use the dig Command in Linux | DNS Lookup Tutorial - YouTube
08:13
DNS Lookup Tools: Dig vs nslookup - A Beginner's Guide - YouTube
DNS Checker
dnschecker.org › all-dns-records-of-domain.php
DNS Lookup - Check All DNS Records for Any Domain
Our DNS Lookup tool directly queries the domain's authoritative name server. It let you check all DNS records of a domain. Enter domain, and get results.
WhatIsDNS
whatsmydns.net › dns-lookup
DNS Lookup - Check All DNS records for any domain
Instant DNS Lookup. Check DNS records and propagation globally.
Misk
misk.com › tools
DNS Lookup / NSLookup: Check DNS Records - Misk.com
Domain name and ip address tools for DNS Lookup (nslookup), Reverse DNS Lookup (rDNS), Whois, and Traceroute. IPv4, IPv6, DMARC, and FCrDNS (forward confirmed reverse dns) lookups supported.
Google
toolbox.googleapps.com › apps › dig
Dig (DNS lookup)
To make a DNS lookup: Enter domain name (trailing dot will be auto-appended). Lookup and enjoy the output. Google Admin Toolbox · This site uses cookies from Google to deliver its services and to analyze traffic.
DigiCert
digicert.com › faq › dns › how-does-dns-lookup-work
How does DNS lookup work? | DigiCert FAQ
A DNS lookup, or DNS record lookup, is the process through which human-readable domain names (www.digicert.com) are translated into a computer-readable IP address (216.168.246.55).
IBM
ibm.com › think › topics › dns-lookup
What is DNS Lookup? | IBM
1 month ago - DNS lookup is the process of translating human-readable domain names into IP addresses.
ICANN
lookup.icann.org
ICANN Lookup
The ICANN registration data lookup tool gives you the ability to look up the current registration data for domain names and Internet number resources.
Wikipedia
en.wikipedia.org › wiki › Reverse_DNS_lookup
Reverse DNS lookup - Wikipedia
June 15, 2025 - In computer networks, a reverse DNS lookup or reverse DNS resolution (rDNS) is the querying technique of the Domain Name System (DNS) to determine the domain name associated with an IP address – the reverse of the usual "forward" DNS lookup of an IP address from a domain name.
DigitalOcean
digitalocean.com › community › tools › dns
DNS Lookup | DigitalOcean
A simple browser-based tool to perform DNS lookups. Type a domain, search, and instantly get results.
Microsoft Learn
learn.microsoft.com › en-us › windows-server › administration › windows-commands › nslookup
nslookup | Microsoft Learn
Reference article for the nslookup command, which displays information that you can use to diagnose Domain Name System (DNS) infrastructure.
What's My DNS
whatsmydns.net
DNS Propagation Checker - Global DNS Testing Tool
When you visit a website, your computer, phone or tablet will first check your local DNS cache for the corresponding IP address. If your device has not recently looked up this website, then it will need to ask your configured DNS server which will forward the request on to the DNS server responsible for managing the records. This process is known as a DNS lookup request.
ViewDNS.info
viewdns.info
ViewDNS.info - Your trusted source for domain and IP intelligence!
View all DNS records for a specified domain.
EasyDMARC
easydmarc.com › home › tools › dns record checker
Free DNS Record Checker | EasyDMARC
Use our DNS lookup tool to check your DNS records and verify that you’ve configured the correct DNS records for your domain, so you can avoid any downtime. Just enter a domain or IP, choose a DNS server, and select the records you want to view.
Dnslookup
dnslookup.online
DNS Lookup - Check DNS Records of Domain
DNS Lookup is a browser based network tool that displays DNS records showing publicly for the domain name being queried.
Kickbox
blog.kickbox.com › how-to-perform-reverse-dns-lookup
How to Do a Reverse DNS Lookup (and Why)
June 27, 2023 - An rDNS lookup is a process through which an IP address is mapped to its respective domain name. A DNS lookup involves using a domain name to look up an IP address.
Cloudflare
cloudflare.com › learning › dns › glossary › reverse-dns
What is reverse DNS? | Cloudflare
A reverse DNS lookup takes an IP address and returns the domain name associated with that IP.
grep Flags
zwischenzugs.com › 2018 › 06 › 08 › anatomy-of-a-linux-dns-lookup-part-i
Anatomy of a Linux DNS Lookup – Part I – zwischenzugs.com
June 8, 2018 - It’s also used for passwords and user lookup information (for example). NSSwitch was originally created as part of the Solaris OS to allow applications to not have to hard-code which file or service they look these things up on, but defer them to this other configurable centralised place they didn’t have to worry about. ... passwd: compat group: compat shadow: compat gshadow: files hosts: files dns myhostname networks: files protocols: db files services: db files ethers: db files rpc: db files netgroup: nis
Hackertarget
hackertarget.com › home › dns lookup
DNS Lookup - Online Tool | HackerTarget.com
April 27, 2025 - Use this online DNS lookup tool to quickly review the standard DNS records for a domain. Additional tools and advanced security scanners are also available.