osint writeups
find osint ctf writeups.
osint writeups document the investigation trail — the photo detail that pinned a location, the username that linked accounts, or the DNS record that exposed infrastructure. they show how open-source clues chain together.
search osint writeups on ctftime
what osint writeups cover
- geolocationwriteups identify a location from signage, architecture, sun position, and street furniture, confirmed in Street View.
- reverse image searchwriteups match a photo across Google, Yandex, and TinEye to find its origin.
- username enumerationwriteups pivot one handle across platforms with Sherlock / WhatsMyName to map an identity.
- domain & WHOIS reconwriteups mine WHOIS, DNS, and certificate transparency to surface related infrastructure.
- social mediawriteups reconstruct timelines from posts, follower graphs, and tagged locations.
- metadatawriteups read EXIF GPS and device data left in uploaded images.
read writeups after you've tried
writeups teach the most when you've already spent real time on a osintchallenge. if you're stuck mid-solve, get a spoiler-free hint first — then read a writeup to see the gap between your approach and the intended one.