Hi there! I understand you're having trouble accessing the Chem Quiz app site with the error "site cannot be reached." Let's work through this together.

First, can you tell me if this happens right when you try to open the site, or does it happen after some loading? Also, do other websites load fine on your browser? This will help me understand if it's a site-specific issue or something with your internet connection or device.

In the meantime, here are some initial steps you can try on your Windows device with the WebKit browser:

1. Check your internet connection: Make sure you are connected to the internet and that the connection is stable.
2. Restart your browser: Sometimes simply closing and reopening the browser clears temporary issues.
3. Clear browser cache and cookies: Sometimes old data can cause loading problems.
- Go to your browser settings.
- Find the option to clear browsing data.
- Select cache and cookies, then clear them.
4. Try accessing the site in a private/incognito window: This disables extensions and cached data.
5. Check your firewall or security software: Sometimes, these can block access to certain sites. Temporarily disable them to test.
6. Use a different browser or device: This can help pinpoint whether the issue is specific to the WebKit browser on your Windows machine.

If you've already tried these steps, let me know which ones so we can dig deeper. Also, if you could share the exact error message or any error code appearing, that would help a lot.

Looking forward to your reply so we can get this sorted out!