Robots.txt file not shown on azure static web app

96979168 5 Reputation points

I have a project which consists of couple of static web pages. In the root directory besides index.html I have "robots.txt" and "sitemap.xml".
When I try to access "robots.txt" I get a 404 - example: "https://blue-grass-2222afaf032/robots.txt"

However when I access "https://blue-grass-2222afaf032/sitemap.xml" I get its contents.

I haven't fiddled with any configurations regarding the routing. It is as stock as it can be.

Azure Static Web Apps
Azure Static Web Apps
An Azure service that provides streamlined full-stack web app development.
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  1. brtrach-MSFT 15,791 Reputation points Microsoft Employee

    @96979168 It seems that you are having trouble accessing the robots.txt file on your Azure Static Web App. The robots.txt file is used to give instructions to web robots about which pages or files to crawl or not to crawl on your website.

    Based on the information you provided, it seems that the sitemap.xml file is accessible but the robots.txt file is not. This could be due to a misconfiguration in the routing rules of your web app.

    To resolve this issue, you can try adding a routing rule to your staticwebapp.config.json file to explicitly allow access to the robots.txt file. Here is an example of what the routing rule should look like:

      "routes": [
          "route": "/robots.txt",
          "serve": "/robots.txt"
      "navigationFallback": {
        "rewrite": "/index.html",
        "exclude": ["/robots.txt"]

    This routing rule will allow access to the robots.txt file and exclude it from the navigation fallback rule.

    If this does not resolve the issue, you can try checking the permissions of the robots.txt file to ensure that it is accessible to the public.