https://protonvpn.com/blog/what-is-dns
What is a DNS lookup? | Proton VPN
Jun 14, 2024 - In this article, we discuss DNS — what it is, how it works, and how it impacts issues such as online privacy and censorship.
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https://spf.fbin.in/
SPFToolbox - DNS Lookup Tool
SPFtoolbox is a Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more
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https://www.dnswatch.info/
DNS Lookup tool, Reverse DNS lookup tool - www.DNSWatch.info
Lookup DNS records with exact performance measuring, monitor your dns servers!
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ClouDNS: What is a PTR Record? Reverse DNS Lookup Made Easy
Mar 26, 2025 - Learn how PTR records map IP addresses to domain names for reverse DNS lookups. Create PTR records with ClouDNS for improved email and server authentication.
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https://dns-loopup.wpx.nl/
WPX DNS Lookup
Simple PHP script to lookup entries of A, AAAA, NS, MX, SOA and TXT records
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https://ping.eu/
Online Ping, Traceroute, DNS lookup, WHOIS, Port check, Reverse lookup, Proxy checker, Bandwidth...
Easy to use web-based service.
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https://dns-lookup.com/developers
DNS Lookup API Documentation - Free DNS API | DNS Lookup | DNS Lookup
Free DNS lookup API for developers. Query DNS records, WHOIS data, SSL certificates, and more. RESTful API with JSON responses. No authentication required.
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https://dns-lookup.com/
DNS Lookup - Find DNS Records for Any Domain
Free DNS lookup tool. Query A, AAAA, MX, NS, TXT, CNAME, SOA, CAA, and SRV records from Cloudflare, Google, and other DNS servers.
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https://dnslookup.pro/
DNS Lookup - Essential Tools for Webmasters and Site Owners
Get the essential tools you need to manage your website and improve your online experience with DNS Lookup. Check DNS and IP information, test internet speed,...
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https://toolbox.googleapps.com/apps/dig/
Dig (DNS lookup)
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https://www.tutorialspoint.com/dns_lookup.htm
DNS Lookup for a Website | Tutorialspoint
DNS Lookup for a Website - A free online collection of network and website penetration testing tools including port scan, information gathering, ping,...
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https://www.nslookup.io/
DNS Lookup Tool – Check DNS Records and Nameservers
Explore fast and reliable DNS lookup tools, domain information, and essential network utilities all in one place on NSLookup.io.
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https://dns-lookup.com/records/srv
SRV Record - Service Record | DNS Lookup | DNS Lookup
Learn about DNS SRV records. Specifies the location of servers for specific services. See examples, common uses, and best practices.
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https://snapshot.internetx.com/en/what-is-a-dns-lookup-and-how-does-it-work/
What is a DNS lookup and how does it work? | Snapshot Hub by InterNetX
Dec 15, 2025 - Learn what a DNS lookup is, how it works, the DNS lookup types and how to run them for better performance, security and reliability.
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https://dns-lookup.jvns.ca/
a simple DNS lookup tool
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https://mxtoolbox.com/TXTLookup.aspx
DNS Lookup Text Record - MxToolbox
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https://www.139cha.cn/
DNS Lookup
Simple PHP script to lookup entries of A, AAAA, NS, CNAME, MX, SOA and TXT records
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https://dns.fish/cookies
DNS.fish - Professional DNS Lookup Tool
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https://dns.fish/
DNS.fish - Professional DNS Lookup Tool
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https://howdns.works/ep4/
How DNS works. How do you do a DNS lookup?
What is DNS? Learn how DNS works and how to perform a DNS lookup, including reverse DNS. Explore TLDs, ICANN, name servers, and TLD name servers.
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https://dnsclient.net/
Technitium DNS Client | An online domain name lookup service
Technitium DNS Client is an online domain name lookup service to quickly query any name server including root servers.
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https://dns.fish/documentation
DNS.fish - Professional DNS Lookup Tool
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https://dig.ua/en/
DIG.UA — Domain Lookup, WHOIS, DNS and Domain History
Check Ukrainian domains: WHOIS, DNS, registrar, registration dates, IP addresses, NS servers and domain history.
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https://uptimerobot.com/free-tools/dns-lookup/?ref=header
DNS Record Lookup Tool – A, AAAA, CNAME, TXT, NS, SOA | UptimeRobot
Free DNS record lookup for any domain. Inspect common record types, confirm TTL, and diagnose DNS propagation and configuration problems quickly.
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https://www.dndetails.com/
Domain Analysis Tool — DNS, WHOIS & Security Lookup 🧰
Analyze any domain by submitting it to multiple DNS lookup, WHOIS, and security analysis websites at once. Free online domain analysis and diagnostic tool. 🔧🛠
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https://dnsrecords.io/
DNS records lookup ~ dnsrecords.io
DNS record lookups just as you like 'em
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https://emailtoolbox.io/
EmailToolBox - DNS MX Record Lookup-Free Email System Testing Tools Collection
Professional email testing platform with MX records lookup, SPF/DKIM/DMARC validation, DNS propagation checking, and blacklist monitoring. Surpass your email...
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https://mxtoolbox.com/
MX Lookup Tool - Check your DNS MX Records online - MxToolbox
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https://my-addr.com/
Online Free Network tools lookup:IP,Domains,Emails,Trace,Ping,DNS, etc.
Online Free Network tools lookup:IP,Domains,Emails,Trace,Ping,DNS, etc.
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NsTools: Analyse DNS de domaine ou IP, test DNS lookup
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https://dnsdumpster.com/
DNSDumpster - Find & lookup dns records for recon & research
Nov 18, 2024 - Free domain research tool to discover hosts related to a domain. Find visible hosts from the attackers perspective for Red and Blue Teams.
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https://www.ns-lookup.io/
ns-lookup - DNS lookup
Ns-lookup analyse the dns zone, dkim and spf of your domain. Also, it will check the health of the server and the HTTP status. Best of dns lookup, and http...
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https://lookup-dns.com/
Lookup DNS - Professional DNS Resolution Testing & Network Diagnostic Tool - Lookup DNS
Professional DNS online lookup and network diagnostic tool providing MX mail server resolution, A record IP address lookup, CNAME alias resolution, NS...
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https://sitechecker.pro/dns-checker/
DNS Checker: Lookup DNS Records for a Specific Website
Free DNS lookup tool will help you to view DNS records of a specific website.
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https://domainlookup.com/
Domain Lookup - Domain Search & AI Based Generator | WHOIS, DNS & Valuation
Find the perfect domain name with Domain Lookup. Get AI-powered domain suggestions, exact match TLDs, premium domains, and domains under auction. Access WHOIS...
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https://github.blog/security/application-security/dns-rebinding-attacks-explained-the-lookup-is-coming-from-inside-the-house/
DNS rebinding attacks explained: The lookup is coming from inside the house! - The GitHub Blog
Jun 10, 2025 - DNS rebinding attack without CORS against local network web applications. See how this can be used to exploit vulnerabilities in the real-world.
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https://dns-lookup.whoisxmlapi.com/
DNS records lookup products for MX, NS, SPF, etc. record | WhoisXML API
Check the NS, MX, SPF, A, SOA, TXT, etc. records / DNS server info of a domain name with our API, lookup tool, and database covering 2B hostnames.
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https://urls.com/whois-lookup/
Whois Lookup Tools: Find Domain Registration and DNS data
Mar 18, 2026 - Unlock the secrets of domain registration with a whois lookup and gain insights into ownership, status, DNS and more of any domain name.
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https://dnsanalyze.com/whois
WHOIS Lookup - DNS Analyze
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https://whoer.com/
WHOER IP Lookup - Check IP Location, DNS & Privacy
WHOER provides complete IP address services, including privacy inspection, DNS leak search, and anonymous assessment.
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