Security Intelligence#
Base64#
Network Intelligence#
- DNS recon with DNSdumpster.
SSL/TLS#
- Scan SSL/TLS client at How’s My SSL.
- Scan domain with TLS checker.
Web Scan#
- Web scan with URLscan.
- Security Headers by Probely.
- Observatory by Mozilla: HTTP, TLS, SSH.
- tls-observatory
- http-observatory
- (Deprecated) ssh_scan
Others#
Generative AI#
- Gemini by Google.
- chatGPT by OpenAI.
- chatGPT Playground
- Claude.AI by Anthropic.
- POE by Quora.
Images#
Diagram#
Markdown#
- Emoji markup list gistfile1.md
- GitHub Emoji Picker
- Graphemica
- Fuck Yeah Markdown
Performance#
- Use the online version PageSpeed Insights.
- Discover tools and information to build high-performance websites with Google Speed.
- Use browser’s built-in
lighthouse
to test page performance.