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ViewDNS.info
viewdns.info
ViewDNS.info - Your trusted source for domain and IP intelligence!
View the reverse DNS (PTR) entry for an IP address. Checks whether a site is accessible from Iran. Ping a server from multiple locations worldwide. Test if any domain name is configured for DNSSEC. Convert a URL with '%##' values to a readable format. Find the abuse contact address for a domain name. Determine the manufacturer of a network device. Determine if a domain provides free email addresses. Lookup details on an Autonomous System Number.
ViewDNS.info API
Comprehensive data APIs for domains, IPs, and more. Enhance your capabilities with powerful insights at your fingertips · Designed for cybersecurity professionals, our APIs help you automate the discovery of linkages between domain names, enrich your SIEM data, and stay ahead of emerging threats
IP History
Shows a historical list of IP addresses a given domain name has been hosted on as well as where that IP address is geographically located, and the owner of that IP address.
Reverse IP Lookup
Takes a domain or IP address and does a reverse lookup to quickly shows all other domains hosted from the same server. Useful for finding phishing sites or identifying other sites on the same shared hosting server.
Reverse Whois Lookup
This free tool will allow you to find domain names owned by an individual person or company. Simply enter the email address or name of the person or company to find other domains registered using those same details.
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Info by IP
infobyip.com › ipbulklookup.php
Domain and IP bulk lookup tool
Domain and IP bulk lookup tool allows to lookup domain, location, ISP and ASN for multiple hosts (IPs or domains) at once. It also supports lookup of MX or NS DNS records for multiple domains.
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IPVoid
ipvoid.com
IP Address Tools, Network Tools, DNS Tools | IPVoid
Convert IPv6 CIDR to IP range · DNS Propagation · DNS propagation checker · DiG DNS Lookup · Run a DiG DNS lookup · MX Records Lookup · View MX DNS records · Reverse DNS Lookup · Run a PTR lookup on an IP · Find Website IP · Find IP address of a website ·
Discussions

Any bulk reverse IP-domain name look up tools, that are free?
I believe with Dnstrails.com you can do this. More on reddit.com
🌐 r/webhosting
3
2
February 14, 2020
What's your go-to for finding IP address information?
I like ipinfo.io for getting full ISP data. Sometimes they have business/organizational records attributed that ipinfo will show you, if the ISP had designated as much detail. Also sometimes if you have a large netblock, the ISP may also have provided a smaller netblock designation for that IP within their greater netblock that ipinfo will show you, but other tools wouldn't. I then use something like shodan or binaryedge to look at the whole netblock to see if any sort of certain business/industry/operation may be attributed to it. More on reddit.com
🌐 r/OSINT
16
28
August 1, 2021
Reverse IP Lookup Tool
I went there, entered one ip, got results, got distracted for 5 minutes, came back and tried a second IP and it says it thinks I'm a bot, try again in a minute... after being idle for 5 minutes... More on reddit.com
🌐 r/webdev
6
1
June 17, 2019
ELI5: How does Reverse IP lookup work?
Visit https://whatismyipaddress.com/ and click on the digital IP address. The hostname shown is the result of the reverse IP lookup. The IP address owner voluntarily publishes the hostname associated with the IP address. For example 8.8.8.8 IP address has "dns.google" hostname. Some other Google's IP address may have a hostname like 38404.corp.google.com. If that IP address is used as an intermediate node for Google employees visiting some websites, the reverse IP lookup reveals the company of the visitor. It is not as useful as the tools make you believe. The vast majority of IP addresses have either no hostname or the hostname reflects an ISP name such as .. More on reddit.com
🌐 r/explainlikeimfive
6
5
June 24, 2024
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ShowMyIP
showmyip.com › bulk-ip-lookup
Bulk IP Lookup - Multiple IP Address Information
Bulk IP Lookup geolocates multiple IP addresses at once. You can also download the geolocation result as a CSV file. CSV file contains the following data: IP, Country, City, Region, ZIP, Timezone, ISP, Organization, ASN, Latitude and Longitude. Our bulk IP lookup tool can instantly output location ...
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Online DNS Tools
onlinednslookup.com › bulk-reverse-dns-lookup
Bulk Reverse DNS Lookup
This tool allows you to perform reverse DNS lookups on domains or hostnames in large batches, with the capacity to handle up to 500 at once. It offers the flexibility to use a custom DNS server of your choice for these lookups.
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Hackertarget
hackertarget.com › home › reverse ip lookup
Reverse IP Lookup, Find Hosts Sharing an IP | HackerTarget.com
April 27, 2025 - Use the reverse IP address lookup service to identify other sites on your host. Next, use investigative tools to identify if these other hosts are of poor quality, perhaps even spam or phishing sites. The bulk of the data for the reverse IP lookup tool comes from our crawls of the Alexa Top 1 Million sites, Search Engines (Bing), Common Crawl, Certificate Transparency, and the excellent scans.io project.
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Domaintools
reverseip.domaintools.com › search
Reverse IP Lookup - All Names Hosted at an IP - DomainTools
Reverse IP Lookup lets you discover all the domain names (in the primary TLDs) hosted on any given IP address.
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GitHub
github.com › topics › bulk-ip-lookup
bulk-ip-lookup · GitHub Topics · GitHub
python tools network cybersecurity infosec defense blacklist-ips abuseipdb bulk-ip-lookup ... python web-scraping reverse-dns bulk-ip-lookup ip-address-tool ip-to-domain website-grabber url-to-ip mass-reverse-ip mass-domain-extraction
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Bulk Seo Tools
bulkseotools.com › bulk-ip-to-location.php
IP to Location. IP Checker. Bulk IP Lookup Tool | Bulk Seo Tools
There's no charge, no CAPTCHA and no limit to how often you want to use this IP address lookup tool. The results you get include the coordinates, city, region and country so you can be sure to pinpoint it pretty accurately. * Your IP Address search results are not being recorded. Protect Yourself from Identity Theft. Save 35% on a VPN from hide.me · Input IP Address line by line. (Max 500 IPs)
Find elsewhere
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Ipapi
app.ipapi.co › bulk
ipapi - Bulk IP Lookup Tool | Locate IP Address on a Map
Analyze up-to 1000 IPs per request ( or up-to 100 IPs with hostname lookup enabled ).
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IPAPI
ipapi.com
IP Address Lookup and Geolocation API | IPapi
Free IP to geolocation REST API supporting IPv4 or IPv6 GeoIP and reverse IP lookup using JSON and XML in PHP, JavaScript, Node, Python, Java, and more.
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Adver
adver.tools › reverse-dns-lookup
Bulk reverse DNS lookup - advertools
Reverse DNS Lookup tool for analyzing IP addresses in bulk. Upload a long list of duplicated IP addresses and for each of them, get the host name, alias list, and IP address list. Also get their counts, absolute, relative, and cumulative.
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MxToolBox
mxtoolbox.com › ReverseLookup.aspx
Reverse IP Lookup - MxToolbox
The Reverse Lookup tool will do a reverse IP lookup. If you type in an IP address, we will attempt to locate a dns PTR record for that IP address. You can then click on the results to find out more about that IP Address. Please note that in general, your ISP must setup and maintain these Reverse ...
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DNSlytics
dnslytics.com
Online investigation tool - Reverse IP, NS, MX, WHOIS and Search Tools
DNSlytics provides the ultimate online investigation tool. See detailed information about every IP address, domain name and provider. Perform network tests like DNS lookup, email testing and WHOIS lookups.
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Hackertarget
hackertarget.com › home › reverse dns lookup
Reverse DNS Lookup Online Tool | HackerTarget.com
April 27, 2025 - By gathering a list of possible host names, IP addresses, and IP network blocks that are related to the targeted organization, an attack surface can be developed. With this reverse DNS tool, you cannot only resolve single IP addresses but also a range of IP addresses or search for all the reverse DNS containing a domain name.
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Team Cymru
team-cymru.com › ip-asn-mapping
IP to ASN Mapping Service | Team Cymru
IPv6 queries are formed by reversing the nibbles of the address, and placing dots between each nibble, just like an IPv6 reverse DNS lookup, except against origin6.asn.cymru.com instead of ip6.arpa. Note that you must pad out all omitted zeroes in the IPv6 address, so this can get quite long!
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MaxMind
maxmind.com › en › geoip-demo
GeoIP databases demo | MaxMind
Demo MaxMind’s GeoIP databases by entering up to 25 IP addresses and access valuable global IP geolocation and network data.
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WhoisXML API
ip-geolocation.whoisxmlapi.com › bulk-gui
Bulk IP lookup | Batch IP address checker | WhoisXML API
Registrant Alert Reverse IP Reverse MX Reverse NS Reverse WHOIS · Screenshot Service Subdomains Lookup Website Categorization · WHOIS API Bulk WHOIS API Reverse WHOIS API WHOIS History API Domains & Subdomains Discovery API Domain Availability API Domain Info API