Meta search
- Kagi ↗️ premium (paid for and ad-free) search prioritising privacy and user experience. Reminiscent of the good-old-days
- SearXNG ↗️ self-hostable, open-source metasearch engine that aggregates results from 200+ engines. There are hosted versions but privacy or veracity is not guaranteed
Specialist
- Virus Total ↗️ meta engine for checking files and their hashes against virus databases
- Shodan ↗️ is an engine to find devices connected to the internet
- Censys ↗️ searches hosts, IPs, certificates