https://github.com/255kb/stack-on-a-budget
- https://mxtoolbox.com/
- https://www.whatsmydns.net/ - check DNS propogation
- https://www.diggui.com/ - online dig command
Check SSL:
- From web UI: https://www.ssllabs.com/ssltest/analyze.html
- Using nmap: nmap — script ssl-enum-ciphers -p 443 www.your-site.com
- Using openssl: openssl s_client -connect www.your-site.com:443 -tls1 < /dev/null
- https://gtmetrix.com/ - Performance, TTFB (time to first byte) and First Contentful Paint
- Chrome DevTools LightHouse
- view traffic in dev tool like panel by using proxy: https://github.com/kdzwinel/betwixt
- https://readability-score.com/text/
- http://www.hemingwayapp.com/
- http://www.thewriter.com/what-we-think/readability-checker/
- Figma - awesome Sketch replacement and free
- screen size and view ports for different devices: http://mydevice.io/devices/
- favicon: http://realfavicongenerator.net/
- App icon generator (iOS and Android): https://appicon.co/
- LucidChart
- Draw in ASCII: http://asciiflow.com/
- ASCII to hand drawn diagram: http://shakydraw.com/
- Sequence Diagram
- Swimlane (text driven): https://swimlanes.io/
- PlantUML (can do more than just sequence diagram): https://plantuml.com/