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Reverse Proxy

A simple ASP.NET reverse proxy website that anyone can use.

This project aims to create a very simple mechanism for serving static files from a separate domain than the main website.

The Reverse Proxy site can then easily be deployed to any web server or to Azure and then use the Traffic Manager to distribute the files globally.

There are several reasons why it's a good idea to serve static files from separate domains (or subdomains).

  1. No cookies are sent or received making the payload smaller
  2. Free up the browser's request limit to serve the pages faster
  3. Distribute globally so the files has the shortest route to the users


Fork or copy this project and deploy it to your own web server. No server components or NuGet packages needed to run this site.

The reverse proxy mechanism is all located in a very small HttpModule. This module activates when a file is requested that doesn't exist. In that case, the module will download the file and serve it immediately to the user and then save it to disk. Any subsequent request will then hit the static file on disk and served super fast without ASP.NET is involved at all.

Let's say you create a website at where you host this Reverse Proxy site.

You also have an existing website at You can now send a request to that looks like this:

Notice that the domain is the first path segment in the URL to the Reverse Proxy website. That informs the Reverse Proxy how to resolve the actual image located on

As of recently, MiniBlog has native support for reverse proxy file serving and is fully compatible with this Reverse Proxy.