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Editorial Team
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Asked: 2026-06-01T05:26:01+00:00

When I load the following page in IE9 on Windows 7 then it loads

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When I load the following page in IE9 on Windows 7 then it loads fine. But when I load the same page in WebBrowser control in C#, it takes 10+ seconds to load. Why is that?

http://www.edu.gov.on.ca/eng/sift/index.asp

I am simply using webbrowser.Navigate with this URL as parameter.

EDIT

Ok after little investigation I found out that it could be due to page size. The combined page size with images and scripts (when I save it in IE9 as “File –> Save As”) becomes 596KB.
But if WebBrowser itself is actually IE9 then why loading in IE9 is faster but in WebBrowser control is slower?

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1 Answer

  1. Editorial Team

    It’s taking about 12 secs on Chrome, IE, Firefox, Safari and Opera here. Tested right now.

    Are you 100% sure that there is no caching on the way?
    Propably your IE is caching pages (Temporary Internet Files) and the C# WebBrowser is not using that cache, though I’ve never used this control to say it for sure…

    All tests here were made with a clean cache, so it will always fetch the whole page from the server.

    I’m testing this from Brazil using two ISP links (10Mbps 10% guarantee coaxial + 1Mbps 50% guarantee fiber).

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