Dev tools · alternatives · 2026
24 alternatives to Reverse IP/DNS
DNS history data repository covering billions of DNS records
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Reverse IP/DNS launched in 2021; newer entries below may have overtaken it.
- 14D
Hi HN, I've been working on building a pipeline to create a DNS records database lately. The goal is to enable research as well as competitive landscape analysis on the internet. The dataset for now spans around 4 billion records and covers all the common DNS record types: A AAAA ANAME CAA CNAME HINFO HTTPS MX NAPTR NS PTR SOA SRV SSHFP SVCB TLSA TXT Each line in the CSV file represents a single DNS record in the following format: www.example.com,A,93.184.215.14 Let me know if you have any questions or feedback!
2024 · merklemap.com · its alternatives →
- 2IN
2024 · iphistory.net · its alternatives →
- 3
Find historic IP addresses from websites and reverse IP
2024 · iphistory.net · its alternatives →
- 4
Hey HN, I saw a thread a while ago (linked in README) discussing how Wikipedia does a good job keeping track of the domains of websites like Sci-Hub or The Pirate Bay. Someone mentioned checking Wikipedia to find links to these sites, so I thought this would be a fun thing to automate! To try it out, install an extension or modify your hosts file, then type in the name of a website with the TLD `.idk`. For example: scihub.idk -> sci-hub.tw Cheers!
2020 · github.com · its alternatives →
- 5
DNS record lookups just as you like 'em
2017 · dnsrecords.io · its alternatives →
- 6
Tired of companies snooping through your DNS traffic? Don't you wish you could get advertisements with your DNS records? Today we're introducing the innovative, privacy-focused, ad-supported DNS resolver - DN$! Traditional DNS resolvers provided by your internet service provider, cloudflare, or google could be tracking your internet activity and selling it to third-party data vendors. We at DN$ want to fix that and cut out these nefarious actors (until we've amassed a critical number of users to exploit). In order to support such a radically new business model, our service needs to serve…
2024 · github.com · its alternatives →
- 7
Hey HN! We built DNS Directory (https://dnsdirectory.com), a free, searchable database of public DNS servers with live monitoring every 10 minutes. We needed to find an up-to-date list of DNS servers used by carriers around the world for a proxy fingerprinting / web-scraping project but we were shocked to find that it didn’t exist so we built it ourselves in an internal Hackathon We’re adding more features but so far we: Test 77K+ servers every ~10 minutes Allow filtering by uptime, location, security features (ad blocking, malware protection, DNSSEC) Show info on IPv6…
Dec 2025 · dnsdirectory.com · its alternatives →
- 8
Hey all, wanted to share my recent weekend hack project. I wanted to improve upon the existing space for looking up information about IP addresses and ASNs. The backend is written in Rust and pulls BGP data every 8 hours from the RIPE RIS project to build up a routing table and also adds geolocation information. The frontend is using React and Tailwind. Would love any feedback or suggestions on what to improve.
2023 · ip.guide · its alternatives →
- 9
2023 · eighty-twenty.org · its alternatives →
- 10
NsLookup▲72A simple and powerful tool for querying DNS records
2020 · nslookup.io · its alternatives →
- 11
2012 · millionshort.com · its alternatives →
- 12
Free domain lookup for DNS records, RDAP, WHOIS, subdomains, IPs, and email security. Research any domain in one fast report.
Jul 2026 · digga.dev · its alternatives →
- 13
Instantly returns the subdomains of 582 million domain names
2021 · subdomains.whoisxmlapi.com · its alternatives →
- 14
I was setting up tests involving DNS resolution recently, where something like 127.0.0.1.service.foo would have been tremendously useful. Back in the day, I'd have used xip.io - but sadly that service died. Well, every excuse is a good one when it comes to writing a DNS server! Backname.io joins nip.io and sslip.io in the wildcard DNS game.
2023 · backname.io · its alternatives →
- 15IS
2023 · v01.io · its alternatives →
- 16RD
2017 · recdnsfp.github.io · its alternatives →
- 17
Discover obscure subdomains w/ this DNS recon tool 4 hackerz
2016 · dnsdumpster.com · its alternatives →
- 18DB
We’ve just launched NUM [1] in the UK, it’s an alternative to the semantic web [2] but based in DNS. We’ve published 23 million data points about 4.8m UK businesses. We had some really interesting HN feedback when we previously posted about one of our example apps [3] so keen to hear what the community has to say this time round. 1. https://www.num.uk 2. https://num.uk/blog/we-crawled-5m-uk-websites-and-published-23m-data-points-to-dns 3. https://news.ycombinator.com/item?id=27598164
2021 · its alternatives →
- 19
#1 repository of historical domain name ownership records
2021 · whois-history.whoisxmlapi.com · its alternatives →
- 20
DNS cleanup is security. We help you automate it.
Nov 2025 · its alternatives →
- 21DB
2020 · num.uk · its alternatives →
- 22
Fast, reliable IP info without apis, just pure dns magic
2025 · resolver.one · its alternatives →
- 23
Free & Private domain research - right in your browser
Dec 2025 · domaindetails.com · its alternatives →
- 24
2020 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →