DNSdumpster

Domain OSINTDNS Investigation

Manual review advised
Checked 8/29/2026

DNSdumpster is a free online tool that performs passive DNS reconnaissance on a domain, showing MX records, TXT records, host records, and subdomains without directly scanning the target. It generates a visual network map showing relationships between hosts.

Open Tool Report incorrect information

Features

✓DNS record lookup
✓Subdomain discovery
✓Network map visualization
✓MX/TXT records
✓Host mapping
✓Export to XLS

Limitations

✗No API
✗Limited depth compared to paid alternatives

Related Tools

🌍

SecurityTrails

Domain OSINT

Historical DNS data, IP history, subdomain enumeration, and WHOIS for any domain.

◆ FreemiumWEB●Intermediate

Open Tool Details →

🌐

Censys

IP Intelligence

Internet-wide scanning for hosts, certificates, and attack surface analysis.

◆ FreemiumWEB●Intermediate

Open Tool Details →

🌍

Subfinder

Domain OSINT

Discover subdomains passively through configured public sources and APIs.

✓ FreeCLI●Intermediate

Open Tool Details →

Tool Details

Interface WEB

Pricing Free

Skill Level Beginner

Open Source No ✗

Maintenance Reported active

Reported Update 2024-11

Platforms

🌐 web

Accepts Input Types

domain

DNSdumpster

Features

Limitations

Related Tools

SecurityTrails

Censys

Subfinder

Tool Details

Platforms

Accepts Input Types

Tags