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Coblis
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Dr. Link Check - Broken link checker with malware and parked domain detection
Sim Daltonism - From the perspective of a color blind person, some colors are impossible to distinguish.
Check a Site - Scan websites for over 700 quality problems
Colour Blindness Simulator - Use our Colour Blindness Simulator to reveal how your images may appear to users with a variety of...
Karate - Web-services testing made simple 🥋
Colorblind Web Page Filter - Enter a URL, and this tool will render it as someone with color blindness will see it.