web sleuthing
/wɛb ˈsluːθɪŋ/
CommonAmateur online investigation using publicly available sources to research crimes, people, or mysteries.
Neutral to positive in true crime communities. Can shade negative when it involves digging into private individuals without cause or when the conclusions are wrong and spread publicly.
Real-world examples4 examples
| # | Example | What it means | Source |
|---|---|---|---|
| 01 | did some web sleuthing and found three separate forum posts from 2012 that contradict the official timeline | Online research uncovered information that challenges the accepted version of events. | reddit, 2023 |
| 02 | I went web sleuthing for one hour and now I have a whole theory and nowhere to put it | Developing a detailed amateur theory through online research with no obvious outlet. | x, 2023 |
| 03 | web sleuthing is just OSINT with a more chaotic energy | Drawing a parallel between amateur internet research and professional open-source intelligence. | x, 2024 |
| 04 | started web sleuthing this cold case and the archived news articles alone could fill a folder | Describing how much publicly available material exists for a well-documented case. | reddit, 2022 |
Use it when
- Someone is researching a person or case using open-source internet tools.
- Describing the activity of amateur online investigation generally.
- Discussing how online communities collectively research cases.
Do not use it when
- Referring to hacking or accessing private or protected information.
- Describing professional journalism or licensed investigation.
Variations and related forms
Origin and context
Emerged from online true crime and missing persons communities in the 2000s. Websleuth was also the name of one of the earliest dedicated forums for online crime investigation, which grew noticeably after the 2005 Natalee Holloway case.
- First seen
- 2000s
- Confidence
- medium
Cite this page
Use this stable URL to reference the entry.
https://slang.fyi/web-sleuthingUpdated: 2026-08-28License: CC BY 4.0