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Editorial Team
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Asked: 2026-05-11T19:23:53+00:00

I was wondering is there any difference in terms of performance between the two

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I was wondering is there any difference in terms of performance between the two approaches? Any good articles on this?

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  1. Editorial Team

    Lets think about the difference in what’s actually happening:

    URL rewriting:

    • IIS receives request and passes it to unmanaged module
    • Module matches the request against a set of patterns and returns a transformation
    • IIS passes the returned transformation to the ASP.NET module and starts request lifecycle

    Routing:

    • IIS receives request and passes it to ASP.NET
    • ASP.NET matches the request against a set of patterns and determines an entry point for handling the request
    • ASP.NET begins request lifecycle on that handler

    I’d say the two are so close you’d be hard-pressed to find a situation where the difference is noticeable.

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