SIGNAL & SHADOW · ARCHIVE

Guides

The start-to-finish workflow for a whole investigative domain, mapping the public tools and method before you go field-deep

All Posts

Phone number OSINT: carrier, line type and reverse lookup

Guides

Aug 21, 2026

Phone number OSINT: carrier, line type and reverse lookup

Derek Bowler

Kali Linux for OSINT: setup and toolchain

Guides

Aug 11, 2026

Kali Linux for OSINT: setup and toolchain

Derek Bowler

SpiderFoot OSINT: automated reconnaissance scanning

Guides

Aug 10, 2026

SpiderFoot OSINT: automated reconnaissance scanning

Derek Bowler

Discord OSINT: Resolving User IDs and Verifying Server Activity

Guides

Aug 9, 2026

Discord OSINT: Resolving User IDs and Verifying Server Activity

Derek Bowler

Instagram OSINT: metadata, network and identity checks

Guides

Aug 8, 2026

Instagram OSINT: metadata, network and identity checks

Derek Bowler

Reddit OSINT: investigating accounts and deleted content

Guides

Aug 7, 2026

Reddit OSINT: investigating accounts and deleted content

Derek Bowler

Maltego OSINT: building an investigation graph

Guides

Aug 6, 2026

Maltego OSINT: building an investigation graph

Derek Bowler

TikTok OSINT guide: tracing and archiving video content

Guides

Aug 5, 2026

TikTok OSINT guide: tracing and archiving video content

Derek Bowler

GitHub OSINT guide: finding exposed secrets, infrastructure

Guides

Aug 4, 2026

GitHub OSINT guide: finding exposed secrets, infrastructure

Derek Bowler

Shodan OSINT: finding exposed infrastructure behind a domain

Guides

Aug 4, 2026

Shodan OSINT: finding exposed infrastructure behind a domain

Derek Bowler

Sherlock OSINT: username pivoting beyond WhatsMyName

Guides

Aug 3, 2026

Sherlock OSINT: username pivoting beyond WhatsMyName

Derek Bowler

Email account enumeration: tools beyond Holehe check

Guides

Aug 2, 2026

Email account enumeration: tools beyond Holehe check

Derek Bowler

Free OSINT tools and frameworks: 2026 toolkit guide

Guides

Aug 1, 2026

Free OSINT tools and frameworks: 2026 toolkit guide

Derek Bowler

How to use Copernicus EMS when a disaster zone is sealed

Guides

Jul 31, 2026

How to use Copernicus EMS when a disaster zone is sealed

Derek Bowler

How to investigate a company with OSINT: a full guide

Guides

Jul 30, 2026

How to investigate a company with OSINT: a full guide

Derek Bowler

Email OSINT: trace an address to accounts and infrastructure

Guides

Jul 29, 2026

Email OSINT: trace an address to accounts and infrastructure

Derek Bowler

How to verify a source: OSINT identity checks for journalists

Guides

Jul 28, 2026

How to verify a source: OSINT identity checks for journalists

Derek Bowler

How to investigate an aircraft: tail number to owner

Guides

Jul 27, 2026

How to investigate an aircraft: tail number to owner

Derek Bowler

Telegram OSINT: investigate channels, groups and users

Guides

Jul 26, 2026

Telegram OSINT: investigate channels, groups and users

Derek Bowler

Maritime OSINT: how to investigate vessels

Guides

Jul 25, 2026

Maritime OSINT: how to investigate vessels

Derek Bowler

The method that separates OSINT from casual searching

Guides

Jul 24, 2026

The method that separates OSINT from casual searching

Derek Bowler