HOW TO USE

Host intelligence across 15 sources — in seconds

What is SeekOSINT?

SeekOSINT is a free, open-source OSINT (Open Source Intelligence) tool that aggregates host data from 15 different intelligence sources into a single, unified view. Enter any IP address, domain name, or ASN and get a comprehensive threat and infrastructure profile instantly — no sign-up required.

Quick Start

1. Enter a target

  • IPv4: e.g. 8.8.8.8
  • IPv6: e.g. 2001:4860:4860::8888
  • Domain: e.g. example.com
  • ASN: e.g. AS15169

2. Hit Look up

SeekOSINT validates your input and routes you to a results page. Queries are normalised automatically — no need to strip http:// or trailing slashes.

3. Read the report

Results are fetched in parallel from all available sources and displayed as soon as each one responds. Slow or unavailable sources time out gracefully without blocking the rest.

Intelligence Sources

SeekOSINT queries up to 15 sources depending on query type. Not all sources support all query types.

Threat Intelligence

  • InternetDB — banners, ports, CVEs
  • URLhaus — malware URLs
  • ThreatFox — IOC feeds
  • MalwareBazaar — malware samples
  • Feodo / SSLBL — botnet blocklists

Network & Routing

  • ip-api — geolocation, ASN, carrier
  • BGPView — routing, prefix, peers
  • Robtex — reverse DNS, shared hosts
  • RDAP / WHOIS — registration data

Certificates & DNS

  • crt.sh — certificate transparency logs
  • CIRCL Passive DNS — DNS history
  • Cloudflare DoH — live DNS resolution

Recon

  • GrayHatWarfare — exposed buckets
  • Wayback Machine — web archive snapshots
  • NVD — CVE vulnerability details

Query Types

IP Address (IPv4 / IPv6)

Geolocation, ASN, open ports, banners, CVEs, abuse history, threat score, BGP routing, reverse DNS.

Domain

DNS resolution, WHOIS registration, certificate transparency, passive DNS history, threat indicators, exposed buckets, web archive.

ASN

Organisation name, announced prefixes, peer ASNs, BGP community tags, country of origin, representative IP intelligence.

Privacy & Ethics

  • All data is sourced from public, passive intelligence — no active scanning
  • No queries are logged or stored beyond anonymous recent-search counts
  • Results are cached at the edge for performance, not linked to any identity
  • Use responsibly — only investigate hosts you own or have permission to investigate

Rate Limits

SeekOSINT enforces per-IP rate limiting to protect upstream API quotas:

  • 500 requests / hour per IP — generous for research workflows
  • Limits reset automatically on a rolling window
  • Self-hosting removes this constraint entirely

Self-Hosting

SeekOSINT is open source. Deploy your own instance on Cloudflare Pages:

  • Clone the repo and copy .env.example to .env
  • Add your API keys for each source you want enabled
  • Run npm run deploy to publish to Cloudflare Pages
  • Sources without keys are automatically skipped
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