1
DomainRecon
kriztalz.sh/domain-reconAlso covers security and security tools · same kind of website
DomainRecon looks up DNS records, WHOIS details, SSL certificates, and IP addresses for a domain.
Alternatives
The Best DNSai Alternatives in 2026
17 alternatives4 free · 2 open source
Looking for something like DNSai? Here are 17 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 4 are free or have a free plan and 2 are open source.
DNSai provides DNS lookups and analysis tools for records, WHOIS, blacklists, email authentication, and domains.
Top picks at a glance
First suggestionDomainReconDomainRecon looks up DNS records, WHOIS details, SSL…Free or freemium optionisMaliciousisMalicious checks IP addresses, domains, URLs, emails…Open source optionopenSquatopenSquat detects look-alike domains that resemble an…Another optionTracerouteVisualizerTracerouteVisualizer maps network traceroute paths and…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | DomainRecon | — | Not stated | Web |
| 2 | TracerouteVisualizer | — | Not stated | Web |
| 3 | isMalicious | Freemium | Not stated | Web |
| 4 | openSquat | — | Yes | — |
| 5 | Web Check | — | Not stated | Web |
| 6 | Islegitsite | — | Not stated | Web |
| 7 | IntoDNS.AI | Free | Not stated | Web |
| 8 | osint-recon | — | Not stated | — |
| 9 | digga | — | Not stated | Browser extension, Web |
| 10 | ViewDNS.info | Freemium | Not stated | Web |
All DNSai alternatives
2
TracerouteVisualizer
kriztalz.sh/traceroute-visualizerAlso covers security and security tools · same kind of website
TracerouteVisualizer maps network traceroute paths and displays the route between a device and a destination.
3
Also covers security · same kind of website · free plan
isMalicious checks IP addresses, domains, URLs, emails, phone numbers, and cryptocurrency wallets against threat intelligence data.
4
Also covers security tools · open source
openSquat detects look-alike domains that resemble an organization’s legitimate domains, helping identify possible impersonation.
5
Web Check
web-check.as93.netAlso covers security · same kind of website
Web Check analyzes a website’s infrastructure and security signals through an OSINT and site diagnostics tool.
6
Islegitsite
islegitsite.comAlso covers security · same kind of website
IsLegitSite checks whether a website may be a scam and reports its reputation through the Site Trustworthiness API.
7
Also covers security · same kind of website · free
IntoDNS.AI checks DNS and mail server settings including SPF, DKIM, and DMARC, combining results in one report.
8
osint-recon
github.com/JMarchiori13/osint-reconAlso covers security
Passive subdomain reconnaissance for authorized testing is available through openSquat, a framework written in Rust.
9
digga
digga.devSame kind of website
Research a domain’s DNS records, RDAP, WHOIS, subdomains, IP addresses, and email security in one report.
10
Same kind of website · free plan
ViewDNS.info is a web-based collection of DNS, domain, and IP lookup tools, including reverse IP, WHOIS, DNS records, subdomain discovery, port scanning, and traceroute. It also offers an API for domain and IP data.
11
Who.is
who.isSame kind of website
Who.is searches domain and website registration records, including WHOIS, RDAP, DNS, and related information.
12
Mark Monitor WHOIS
whois-webform.markmonitor.com/whoisSame kind of website
MarkMonitor WHOIS looks up domain registration records, with notices about contact information withheld for some registrations.
13
Domain Dossier
centralops.net/co/DomainDossier.aspxSame kind of website
Domain Dossier investigates domains and IP addresses through lookups for ownership, DNS, and network details.
14
Azure Tenant Resolution by PingCastle
tenantresolution.pingcastle.comSame kind of website
Azure Tenant Resolution by PingCastle maps domain information to Azure tenant data using an online lookup.
15
Same kind of website · free plan
DNS History stores historical DNS records, allowing users to review past domain and infrastructure changes.
16
Icann Lookup
lookup.icann.org/en/lookupSame kind of website
ICANN Lookup searches registration data for domain names and related internet number resources.
17
Open source
dnsx provides a fast DNS reconnaissance toolkit for resolving records and collecting DNS information from domains.
No alternatives match this filter.
Alternatives to similar tools
openSquat12 alternativesWho.is9 alternativesAzure Tenant Resolution by PingCastle7 alternativesWeb Check8 alternativesosint-recon9 alternativesdnsx12 alternatives
What is the best alternative to DNSai?
Based on features, tags and platforms, the closest alternatives to DNSai are DomainRecon, TracerouteVisualizer, and isMalicious.
Is there a free alternative to DNSai?
Yes. isMalicious, IntoDNS.AI, and ViewDNS.info are free or offer a free plan.
Are there open-source alternatives to DNSai?
Yes: openSquat and dnsx.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative