The Multi-Engine OSINT Methodology
No single reverse image search engine indexes the entire web. A professional open-source investigator must pivot across specialized engines based on the subject matter.
Use Yandex for facial identification, Eastern European sources, and obscure forum avatars. Use Google Lens for commercial products, landmarks, and high-volume media. Use TinEye for chronological timeline indexing to discover the earliest historical upload.
Always crop tightly to individual faces, landmarks, or background signage to force reverse search engines to match on unique features rather than generic scene layout.