Browsers are not completely consistent in how they report screen and window sizes, and various of these computations may not work on your browser, which appears to be Other based on your
User Agent String: "CCBot/2.0 (https://commoncrawl.org/faq/)"
Tested in Firefox 55, Chrome 60, and Internet Explorer 11, all on Windows 7. Copyright © 2018 Jefferson Scher. Updated 6/7/2018.