AltDNS
Generates variations of known subdomains (dev-, -staging, numbers) and resolves them to find hidden hosts.
Open AltDNS ↗https://github.com/infosec-au/altdns
- Type
- Command line
- Cost
- Free
- Touches the target?
- Yes, can be active
- Account needed
- No
- Category
- Domains & DNS
- Language
- Python
- License
- Apache-2.0
- Platforms
- linux, macos
- GitHub stars
- 2,508
- Last updated
- 2025-01-09
- Link status
- Online, checked 2026-09-26
Takes
Gives you
Where to go next
Found something with AltDNS? These tools take it as input.
Domain →
- AA419 Fake Sites Database
- AbuseIPDB
- AlienVault OTX
- Apollo.io
- Blacklist Checker
- BrightCloud URL/IP Lookup
- BuiltWith
- CC.LA
- Censys
- Cerast Intelligence
- CertGraph
- CertKit CT Search
- CloudFail
- CompleteDNS DNS History
- CrawlGraph
- Criminal IP
- crt.sh
- Daily DNS Changes
- digga
- DNSDumpster
- DNSlytics
- DNSRecon
- dnstwist
- dnstwister
- DNSViz
- Domain Dossier
- DomainCrawler
- DomainHelp
- DomainTools Whois
- Email Format
- Email Permutator
- FullHunt
- Google Safe Browsing site status
- GrayhatWarfare Public Buckets
- Hunter
- Hurricane Electric BGP Toolkit
- IBM X-Force Exchange
- ICANN Lookup
- ImmuniWeb
- ip.thc.org
- IP2WHOIS
- isMalicious
- Maltego
- Maltiverse
- Malwagon
- MerkleMap
- mnemonic Passive DNS
- MultiRBL
- MxToolbox
- NameCheckup
- Namechk
- Netcraft Site Report
- Netlas.io
- Nikto Online
- Nmap
- onion-lookup
- ONYPHE
- OWASP Amass
- Pentest-Tools Google Hacking
- Pentest-Tools Subdomain Finder
- PhishStats
- PingCastle Azure Tenant Resolution
- Pulsedive
- Recon-ng
- Robtex
- scumware.org
- SecurityTrails
- Shodan
- Skymem
- Spamhaus Reputation Checker
- SpiderFoot
- SSL Labs Server Test
- Subfinder
- Sublist3r
- Sucuri SiteCheck
- SWITCH WHOIS (.ch / .li)
- SynapsInt
- theHarvester
- Trend Micro Site Safety Center
- urlDNA
- URLhaus
- urlscan.io
- URLVoid
- utrace
- Validin
- ViewDNS.info
- VirusTotal
- VoilaNorbert
- Wappalyzer
- Wayback Machine
- Web-Check
- Webscout
- Website Informer
- Who.is
- Whoisology
- YouGetSignal
- Zone-H
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