Useful links 01
- This tool is an ongoing experiment in better HTML checking/validating validator.w3.org
- REDbot checks HTTP resources to see how they'll behave, pointing out common problems and suggesting improvements redbot.org
- Free image cache & resizing service that just works images.weserv.nl
- Free to use tool for sketching diagrams Excalidraw
- Create diagrams and visual documentation. Free for now Eraser