Workflow

Research a Domain

Investigate domains, DNS, infrastructure, and ownership signals.

Begin with WHOIS and DNS visibility, then pivot into infrastructure, hosting history, and reputation signals.

18 direct workflow tools
1 supporting tools
5 related categories
Step 1

Start Here

Open with the strongest domain intelligence sources to establish ownership, records, and core infrastructure quickly.

Step 2

Core Tools

Then widen into IP, hosting, and URL analysis tools to trace relationships, changes, and technical dependencies.

4
IP Address OSINT Cost: Free Access: Open Source

IP Void

IP Void provides capabilities for IP attribution, network reconnaissance, and infrastructure analysis. We offer a vast range of IP address tools to discover details about IP addresses.

5
Domain OSINT Cost: Paid Access: Open Source

Security Trails

SecurityTrails provides domain and DNS intelligence, including historical records and infrastructure correlations for online investigations. This resource supports WHOIS research, DNS history analysis, and infrastructure mapping.

6
Domain OSINT Cost: Free Access: Open Source

Whoxy

Whoxy is a powerful WHOIS lookup API and domain ownership search tool. Access parsed WHOIS data in JSON/XML for over 2,000 domain extensions at the lowest prices

7
Domain OSINT Cost: Free Access: Open Source

Whoisology

Whoisology provides capabilities for WHOIS research, DNS history analysis, and infrastructure mapping. A searchable cross referenced database of current and historic domain name ownership records.

8
Domain OSINT Cost: Free Access: Open Source

Domainiq

Domainiq provides capabilities for WHOIS research, DNS history analysis, and infrastructure mapping. domainIQ provides a comprehensive set of tools for whois and domain name research, specifically tools that assist in brand.

9
IP Address OSINT Cost: Free Access: Open Source

Viewdns Tools

ViewDNS.info offers DNS, IP, and domain lookup tools for pivoting across infrastructure during OSINT investigations. This resource supports IP attribution, network reconnaissance, and infrastructure analysis.

10
Domain OSINT Cost: Free Access: Open Source

DNS History

DNS History is an OSINT resource for domain and infrastructure intelligence. It supports WHOIS research, DNS history analysis, and infrastructure mapping.

11
Domain OSINT Cost: Free Access: Open Source

ARIN

ARIN provides capabilities for WHOIS research, DNS history analysis, and infrastructure mapping. ARIN is a nonprofit, member-based organization that administers IP addresses & ASNs in support of the operation and growth of the.

12
Domain OSINT Cost: Free Access: Open Source

Central Ops

Central Ops provides capabilities for WHOIS research, DNS history analysis, and infrastructure mapping. Free online network tools, including traceroute, nslookup, dig, whois, ping, and our own Domain Dossier and Email Dossier.

13
Domain OSINT Cost: Free Access: Open Source

Who Is

Who Is provides capabilities for WHOIS research, DNS history analysis, and infrastructure mapping. Find information on any domain name or website.

14
IP Address OSINT Cost: Free Access: Open Source

Domain/IP lookup

Domain/IP lookup is an OSINT resource for domain and infrastructure intelligence. It supports IP attribution, network reconnaissance, and infrastructure analysis.

15
Web & URL OSINT Cost: Free Access: Open Source

Builtwith

BuiltWith profiles website technology stacks, tracking frameworks, hosting signals, and third-party services for web reconnaissance. This resource supports URL analysis, website intelligence, and online risk assessment.

16
Web & URL OSINT Cost: Free Access: Open Source

URL Query

URL Query provides capabilities for URL analysis, website intelligence, and online risk assessment. urlquery is an online service that scans webpages for malware, suspicious elements and reputation.

17
Cyber Threat OSINT Cost: Free Access: Open Source

Spamhaus

Spamhaus provides capabilities for threat intelligence, vulnerability research, and IOC investigation. Strengthening trust and safety online through IP and domain reputation intelligence, expertise, education, and community.

18
Archive & Capture Cost: Free Access: Open Source

SingleFile

SingleFile helps you to save a complete web page into a single HTML file. SingleFile is a Web Extension (and a CLI tool) compatible with Chrome, Firefox (Desktop and Mobile), Microsoft Edge, Safari, Vivaldi, Brave, Waterfox, Yandex browser, and Opera.

Step 3

Also Useful

Use supporting tools for supplementary evidence such as reputation, snapshots, and deeper technical context.

Category: Cyber Threat OSINT Cost: Free Access: Open Source

VirusTotal

File, URL, domain, and IP analysis platform that aggregates antivirus engines and other signals for malware and infrastructure investigation.

Related Categories