CDN

How can we improve Azure CDN?

You've used all your votes and won't be able to post a new idea, but you can still search and comment on existing ideas.

There are two ways to get more votes:

  • When an admin closes an idea you've voted on, you'll get your votes back from that idea.
  • You can remove your votes from an open idea you support.
  • To see ideas you have already voted on, select the "My feedback" filter and select "My open ideas".
(thinking…)

Enter your idea and we'll search to see if someone has already suggested it.

If a similar idea already exists, you can support and comment on it.

If it doesn't exist, you can post your idea so others can support it.

Enter your idea and we'll search to see if someone has already suggested it.

  1. Provide API to access CDN analytic data

    API is needed to access analytic data (e.g. hits, cache/hit ratio, GB usage, bandwidth, etc.)

    24 votes
    Vote
    Sign in
    Check!
    (thinking…)
    Reset
    or sign in with
    • facebook
    • google
      Password icon
      Signed in as (Sign out)
      You have left! (?) (thinking…)
      planned  ·  0 comments  ·  Flag idea as inappropriate…  ·  Admin →
    • There seems to be a issue when enabling compression when using Akamai

      It seems when using Akamai as the CDN and compression is enabled, static content which isn't compressed (e.g. images) always returns a pragma: no-cache header.

      Either this is a bug, or an undocumented 'feature' .

      23 votes
      Vote
      Sign in
      Check!
      (thinking…)
      Reset
      or sign in with
      • facebook
      • google
        Password icon
        Signed in as (Sign out)
        You have left! (?) (thinking…)
        5 comments  ·  Flag idea as inappropriate…  ·  Admin →
      • Test Azure CDN Rule Engine before sending for approval

        At this moment, you cann't test Azure CDN Rule Engine before sending for approval, approval of new Rules takes up to 4 hours. Which make things very difficult.

        20 votes
        Vote
        Sign in
        Check!
        (thinking…)
        Reset
        or sign in with
        • facebook
        • google
          Password icon
          Signed in as (Sign out)
          You have left! (?) (thinking…)
          0 comments  ·  Flag idea as inappropriate…  ·  Admin →

          Rule approval is currently automatic with no delay. We will follow up on having the 4 hour approval message you see in the CDN supplemental portal updated to remove this confusion. While approval is automatic it can currently take 90 minutes for updates to propagate to all CDN POPs. Work is under way to significantly reduce this to a much lower value in the next few months.

        • 17 votes
          Vote
          Sign in
          Check!
          (thinking…)
          Reset
          or sign in with
          • facebook
          • google
            Password icon
            Signed in as (Sign out)
            You have left! (?) (thinking…)
            under review  ·  0 comments  ·  Flag idea as inappropriate…  ·  Admin →
          • Add more endpoints outside of EU

            https://azure.microsoft.com/en-us/documentation/articles/cdn-pop-locations/
            Open CDN map- and you will find that for MOST geographical regions- CDN is irrelevant. For exUSSR region closest CDN is in Poland but latency just on a few millisecond less than directly from WE region. For MEA region- the same...

            16 votes
            Vote
            Sign in
            Check!
            (thinking…)
            Reset
            or sign in with
            • facebook
            • google
              Password icon
              Signed in as (Sign out)
              You have left! (?) (thinking…)
              1 comment  ·  Flag idea as inappropriate…  ·  Admin →

              Work is ongoing to provide POPs in additional Geographical regions. In November POP’s were added in India and South America. Additional POP’s in South America and in Oman will be added in the next few months. We also announced last year a partnership with Akamai which will allow us later this year to provide access to the entire Akamai network. Akamai has POP’s in over 110 countries. The following link from Akamai will help us see the level of coverage that they have today: http://wwwnui.akamai.com/gnet/globe/index.html

            • Wants to add CORS headers in HTTP response sending through Azure Akamai CDN

              Wants to add CORS headers in HTTP response sending through Azure Akamai CDN

              13 votes
              Vote
              Sign in
              Check!
              (thinking…)
              Reset
              or sign in with
              • facebook
              • google
                Password icon
                Signed in as (Sign out)
                You have left! (?) (thinking…)
                planned  ·  0 comments  ·  Flag idea as inappropriate…  ·  Admin →
              • Allow different CDN cache and client cache times for Azure CDN Standard

                Currently the only option is to set the Max-Age header on the content which sets the TTL on the CDN endpoints AND on the clients.

                If we use the Purge API to refresh the CDN content, the clients still have the cached version.

                Akamai has a "downstream-ttl" attribute on the Edge-control header that allows for client expiration customization while letting the "max-age" header set the CDN expiration.

                This way you can set the downstream-ttl to 0 (client always requests to CDN) while CDN can cache the original content until Purged.

                Without this, the Purge command is not entirely useful.

                12 votes
                Vote
                Sign in
                Check!
                (thinking…)
                Reset
                or sign in with
                • facebook
                • google
                  Password icon
                  Signed in as (Sign out)
                  You have left! (?) (thinking…)
                  1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                • Support compression directly from IIS Origin

                  Azure CDN adds the Via header when it communicates with origin servers as this is required by HTTP/1.1 - (http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html). IIS by default does not apply HTTP compression to requests that have the "Via" header. This prevents gzip compression from working by default with Azure CDN as IIS by default will not compress content when it receives a request with a Via header. This default setting for IIS can be changed by setting the noCompressionForProxies to false.

                  This is not intuitive and should "just work". The whole point of having combined services in Azure is that we shouldn't…

                  11 votes
                  Vote
                  Sign in
                  Check!
                  (thinking…)
                  Reset
                  or sign in with
                  • facebook
                  • google
                    Password icon
                    Signed in as (Sign out)
                    You have left! (?) (thinking…)
                    0 comments  ·  Flag idea as inappropriate…  ·  Admin →

                    I significantly updated the title and contents of this request to accurately reflect why compression from an IIS origin does not work with Azure CDN. The CDN does support HTTP/1.1 when communicating with origin servers. We are planning on adding support in the future that will allow one to prevent the Via header from being sent to IIS.

                    In the next month we are also targeting to enable one to have the CDN compress files directly – see http://feedback.azure.com/forums/169397-cdn/suggestions/1074433-automatic-http-compression-on-azure-blob-cdn-gzip.

                  • Provide the ability to prevent hotlinking in Azure CDN Standard

                    The ability to deny content or serve alternate content when hotlinking is detected, via whitelist / blacklisting referrers.

                    This would help us protect our CDN from third-party usage and is something AWS provides already.

                    11 votes
                    Vote
                    Sign in
                    Check!
                    (thinking…)
                    Reset
                    or sign in with
                    • facebook
                    • google
                      Password icon
                      Signed in as (Sign out)
                      You have left! (?) (thinking…)
                      0 comments  ·  Flag idea as inappropriate…  ·  Admin →

                      I’ve update the title to indicate that this is a request for Azure CDN Standard. This capability is available to today with Azure CDN from Verizon Premium via the rules engine. Via the rules engine you can match on a specific referer and deny a request or redirect / rewrite the request to a different location.

                    • Signed cookie in CDN

                      Enable authenticated access to CDN without the need to change URL or headers. This is especially useful for referencing a static web page in an IFRAME.

                      Scenario. When user signs in to example.com, we would first redirect users to a non-cached page on CDN cdn.com, which would set the signed cookies, before redirecting back to example.com.

                      On example.com, we have an IFRAME that references a static webpage on cdn.com. The static webpage references other images, JavaScript and CSS on cdn.com. The access to the webpage and other resources are authenticated by the signed cookie.

                      AWS implementation http://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/private-content-signed-cookies.html

                      9 votes
                      Vote
                      Sign in
                      Check!
                      (thinking…)
                      Reset
                      or sign in with
                      • facebook
                      • google
                        Password icon
                        Signed in as (Sign out)
                        You have left! (?) (thinking…)
                        0 comments  ·  Flag idea as inappropriate…  ·  Admin →

                        If you are using Azure CDN from Verizon Premium, you can open a technical support case to have this capability setup for you via the rules engine. Overall you would use the token authentication capabilities in Azure CDN from Verizon Premium to accomplish this – https://docs.microsoft.com/en-us/azure/cdn/cdn-token-auth. With token authentication the signed token is sent by default in the query string for your URL’s. The capability you are looking for is the ability to instead have the token sent as a cookie in the client request to the CDN.

                        We will look at enabling this capability long term without the need to open a support case.

                      • Allow a CDN to be a linked resource

                        We want the ability to see CDNs which are related to a particular property as well prevent accidental deletion if linked.

                        8 votes
                        Vote
                        Sign in
                        Check!
                        (thinking…)
                        Reset
                        or sign in with
                        • facebook
                        • google
                          Password icon
                          Signed in as (Sign out)
                          You have left! (?) (thinking…)
                          1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                        • Purging via CNAME

                          Currently purging is just supported by specifying the CDN endpoint. For case where a rewrite rules is used to direct customers to different content based on the CNAME (e.g. by selecting content to return based on host name) it is valuable to have the ability to purge content based on CNAME. Without this capability one needs to create individual CDN endpoints to use for each CNAME that has different content returned based on the CNAME.

                          8 votes
                          Vote
                          Sign in
                          Check!
                          (thinking…)
                          Reset
                          or sign in with
                          • facebook
                          • google
                            Password icon
                            Signed in as (Sign out)
                            You have left! (?) (thinking…)
                            under review  ·  0 comments  ·  Flag idea as inappropriate…  ·  Admin →
                          • Dashboard with CDN Information

                            1. The current CDN portal provides the required information, but it would be good to have something in the form of an Dashboard, which can provide an complete view of the performance and utilization.

                            2. Region/Country wise cache status and the hit and miss ration is good to have to understand the traffic and to be aware of the performance from the different regions.

                            7 votes
                            Vote
                            Sign in
                            Check!
                            (thinking…)
                            Reset
                            or sign in with
                            • facebook
                            • google
                              Password icon
                              Signed in as (Sign out)
                              You have left! (?) (thinking…)
                              under review  ·  0 comments  ·  Flag idea as inappropriate…  ·  Admin →
                            • Is there any plan to implement how to operate Azure CDN by JAVA SDK?

                              We are now using JAVA SDK to access Azure service but it seems no api to operate CDN service. We need to use the "query string" function of azure cdn with java, i would like how to define the file name pattern of resource like css or javascript.
                              So, we would like to know is there any schedule of this request will be planned? Thanks.

                              7 votes
                              Vote
                              Sign in
                              Check!
                              (thinking…)
                              Reset
                              or sign in with
                              • facebook
                              • google
                                Password icon
                                Signed in as (Sign out)
                                You have left! (?) (thinking…)
                                1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                              • Request filtering like AWS WAF

                                Add request filtering ability like in AWS WAF

                                7 votes
                                Vote
                                Sign in
                                Check!
                                (thinking…)
                                Reset
                                or sign in with
                                • facebook
                                • google
                                  Password icon
                                  Signed in as (Sign out)
                                  You have left! (?) (thinking…)
                                  planned  ·  0 comments  ·  Flag idea as inappropriate…  ·  Admin →
                                • 7 votes
                                  Vote
                                  Sign in
                                  Check!
                                  (thinking…)
                                  Reset
                                  or sign in with
                                  • facebook
                                  • google
                                    Password icon
                                    Signed in as (Sign out)
                                    You have left! (?) (thinking…)
                                    planned  ·  0 comments  ·  Flag idea as inappropriate…  ·  Admin →
                                  • Provide access control feature

                                    I'm looking to use Azure CDN to replace a password-protected FTP area. The lack of access control is preventing me using the CDN.

                                    7 votes
                                    Vote
                                    Sign in
                                    Check!
                                    (thinking…)
                                    Reset
                                    or sign in with
                                    • facebook
                                    • google
                                      Password icon
                                      Signed in as (Sign out)
                                      You have left! (?) (thinking…)
                                      under review  ·  1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Provide Access to CDN Storage

                                      Currently there seems to be no way to access the storage the CDN is using.

                                      I would like to use Function App with a NodeJS Blob Trigger to minify any CSS and JS files that land up on the CDN Storage.

                                      Another scenario is to jslint & css lint any js and css files that gets stored in CDN storage and send notifications if there's anything that won't lint.

                                      Yet another scenario is to use a blob trigger blobs and optimize any images that gets stored.

                                      6 votes
                                      Vote
                                      Sign in
                                      Check!
                                      (thinking…)
                                      Reset
                                      or sign in with
                                      • facebook
                                      • google
                                        Password icon
                                        Signed in as (Sign out)
                                        You have left! (?) (thinking…)
                                        0 comments  ·  Flag idea as inappropriate…  ·  Admin →

                                        There currently isn’t any way to access storage that is used by the CDN for caching purposes. Content is never permanently stored in the CDN cache. By default content is stored for a max of 7 days. Longer or shorter times for this TTL can also be specified. However, in all cases this is just a max value and content can be removed from the CDN’s cache if it isn’t being actively accessed.

                                        Long term we are investigating the ability to have the CDN automatically optimized images and reduce the size of content (e.g. minify files) before they are delivered to clients.

                                      • Minimal rules to Azure CDN to support static websites based on Blob Storage

                                        The Azure Blob Storage is lacking a few features to actually support a static website. Namely, there is no way to have a "default blob" fallback to emulate the behavior of a default file in every "folder". Right now, the Verizon Premium CDN (abyssally bad UX) is the only option if one ever hope to host a static website backed by the Blob Storage on Azure. It would be much nicer if the Azure CDN could provide minimal features. No need for a full URL rewrite engine, a few minimal options tailored for the Blob Storage should be enough.

                                        6 votes
                                        Vote
                                        Sign in
                                        Check!
                                        (thinking…)
                                        Reset
                                        or sign in with
                                        • facebook
                                        • google
                                          Password icon
                                          Signed in as (Sign out)
                                          You have left! (?) (thinking…)
                                          1 comment  ·  Flag idea as inappropriate…  ·  Admin →
                                        • CDN should support ETAGS just like they support last modification date

                                          When performing a request with 'If-Modified-Since' header, CDN correctly respond 304 if data is not modified. But they ignore equivalent ETAGS directive: IF-None-Match and always return OK 200. They should consider it. Just as described in RFC 7234.

                                          6 votes
                                          Vote
                                          Sign in
                                          Check!
                                          (thinking…)
                                          Reset
                                          or sign in with
                                          • facebook
                                          • google
                                            Password icon
                                            Signed in as (Sign out)
                                            You have left! (?) (thinking…)
                                            0 comments  ·  Flag idea as inappropriate…  ·  Admin →

                                            This is a limitation just with Azure CDN from Akamai. With Azure CDN from Verizon ETag support is enabled by default. Supporting ETags is an optional and not a mandatory header per HTTP RFC. We are working long term to mitigate / remove differences in caching behavior between Verizon and Akamai.

                                          • Don't see your idea?

                                          CDN

                                          Feedback and Knowledge Base