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Nice, but I can't help but think this would be better as a browser extension instead. That way you could use it on your own URL without going back and forth.

• sdfjkl 15y ago
  A bookmarklet can probably perform this.
• iaskwhy 15y ago
  For those with Chrome, you can try Resolution Test: https://chrome.google.com/webstore/detail/idhfcdbheobinplaamokffboaccidbal https://chrome.google.com/webstore/detail/idhfcdbheobinplaam...