A Content Delivery Network is used to distribute data to end users of an Internet service. It is typically used for large scale distribution, and employs caching and numerous edge locations to speed up and reduce the bandwidth requirements of the process.

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649 views

How do I configure an SSL only site, in a way that doesn't affect browser connection limits

The Yahoo Developer Best Practices recommend using multiple hosts (host1.company.com, host2.company.com, etc..) as a way of overcoming a webbrowsers built in limitation of only issuing two concurrent ...
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2answers
54 views

Processing files from a Content Distribution Network problem

From what I understand that CDNs are meant to physically cache your static files in multiple regions closer to your users. However, I've noticed a few websites that when a page is requested from their ...
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2answers
508 views

Chrome not caching CloudFront video/audio; CloudFront delivers http 1.0 headers

With the following response header: HTTP/1.0 200 OK Content-Type: video/mp4 Content-Length: 3294545 Connection: keep-alive Date: Thu, 30 May 2013 21:17:34 GMT x-amz-meta-s3cmd-attrs: ...
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2answers
615 views

Wordpress feed does not update after APC and Cloudflare

I am running a Wordpress site on a Ubuntu server. I installed APC and setup Cloudflare. After that I started having a strange problem with the feed. When I check the feed on the browser, I can see ...
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2answers
1k views

Adding expire headers to content served from CDN?

I'm using MaxCDN to serve content to my blog using W3 Total Cache. The problem I'm running into when evaluating my site using Google Page Speed and YSlow! is that expire headers are not being sent on ...
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1answer
499 views

Amazon S3 appears to be blocking cloudflare IP addresses. How do I fix it?

I have static content that is being served by Cloudflare. Cloudflare points to Amazon S3 to pick up the static content and serves it via a CNAME (cdn.mydomain.com). The bucket is setup properly and ...
2
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1answer
117 views

Hosted file is downloaded damaged by IE

I have a ZIP file hosted via Apache with Akamai as CDN, the problem is when trying to download it with IE (and just IE) it is damaged and I'm unable to open it. Since the problem occurs in other ...
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1answer
180 views

Amazon CloudFront Synchronization

I want to leverage Amazon CloudFront to "cache" my webserver such that my website stays up even if my webserver goes down. I understand CloudFront has many edge servers that facilitate the ...
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1answer
890 views

htaccess - How to allow access only to static files for specific domain

The idea is to serve js,css, img files using different domains so I created following domains: css.mydomain.com js.mydomain.com img.mydomain.com The main site URL is www.mydomain.com. When I ...
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1answer
144 views

Test site speed

I am test driving an Akmai CDN architecture and before committing to buy, I would like to gauge the real performance gain from the acceleration feature. What would be the best MO for doing speed ...
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1answer
11 views

Log access to cached content by 3rd party

The question is pretty much the same as this one: How to log a request to apache access log if it's cached by Varnish but instead of varnish let's say I am using CloudFlare. Is there any way to ...
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1answer
16 views

Using local server as a part of CDN

I would like to use CDN for my website. But more than 70% of the requests would be from within my own network. so I am planning to use my local server as part of the CDN, so that when somebody from ...
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1answer
77 views

How do I find the actual domain for an IP addresses in my web log that uses a CDN?

I'm trying to analyze our web access log to report on which organizations are accessing our website. But for many of the IP addresses in the log, the reverse DNS lookup resolves to CDN domain names ...
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1answer
24 views

Rewrite subdomains in Nginx

Because I don't want to use CDN anymore I would like to rewrite cdn.example.com to www.example.com. How to do this with Nginx? There is only www.example.com in my server block.
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1answer
44 views

Cloudfront: Pulling content from subdomain - serving it on main domain

I'm setting up CloudFront (CF) using third party hosting as the origin. What I want is to have the CF servers act as my own hosting, meaning I don't want to fetch files from the likes of ...
0
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1answer
30 views

Heroku redirect file to serve from CDN

My Heroku backed app is now serving a certain JS file, but due to high rpms I would like to serve it from my CDN. Is it possible to make a redirect from myapp.herokuapp.com/file.js to ...
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1answer
2k views

Azure CDN returning 404 not found for Storage Container Blob endpoints

My Azure CDN does not appear to be correctly mapped to my Storage Container Blob data. Storage I've created a Storage, which is online: Inside is a Storage Container: ...
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1answer
596 views

Check whether CDN is working or not

Is there any way to find whether the static content is being served by CDN or not. Using curl, can i find whether the static file is being served by CDN or by the webserver.
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1answer
129 views

CDN that pulls content from 3xx redirect target?

Storing data in Amazon's S3. Some of the data is for public viewing, and some is for private. I'd rather have everything in S3 marked as private, and enforce viewing constraints through my web app. ...
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1answer
113 views

CloudFlare dashboards empty, or performance issues

I wanted to test CloudFlare performance so I set my image gallery domain on it and started testing. I have added PageRules for caching. And chose the Security: Essentially Off. I checked NS check ...
0
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1answer
186 views

Subdomains with some dynamic content and some static content on a CDN

Here's what I want to do. I know I can't do everything; I'm looking to see how close I can get or if anyone has a creative solution. The goal is to make it so I can deploy HTML+CSS+JS to ...
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1answer
715 views

Google Analytics setting cookies on static content despite being on entirely separate domain

I recently decided to comply with the YSlow recommendation that static content is hosted on a cookieless domain. As I already use the root of my domain (donaldjenkins.com) to host my website—on which ...
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1answer
448 views

CDN Rerouting on 404 (file not yet in synch with original storage)

Here is the problem. I've setup my app(on EC2) to store uploaded images directly on Amazon S3. I'd like to be able to serve static files(cdn) from my 'home' server so I wrote script that does sync ...
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1answer
8 views

Can you configure a CDN to cache pages based on the browser language?

Many websites do not have the language or locale set in the URL string. They instead pull this out of the "Accept-Language" HTTP header. Is it possible with CDN's like CloudFlare and CloudFront to ...
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0answers
245 views

Is it possible to configure a CDN so that it will step out of the way for a subset of regional IPs?

We have a website which targets customers in China, both expat and local Chinese. We have an ICP license which allows us to host in a datacenter inside China. Internet in China is actually as fast as ...
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0answers
557 views

High latency on domain with CDN

High latency on domain with CDN I have problems with latency on my server, these are the tests I made with blitz.io Latency album http://imgur.com/a/bCmwo I would uploaded images here but it ...
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0answers
15 views

Route content using nginx if a specific condition is met

I have 2 LAN networks which are united w/ IPSec tunnel: 10.10.10.1/24 10.10.20.1/24 One of my internal sites is running on 10.10.10.50, which is serving users heavy content, such as 300-400MB ...
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20 views

Using a Cisco WebVPN with a CDN

We have a set of users who access some of our web applications through WebVPN, however where an application uses resources on a CDN e.g. CSS/JS, the url for the resources is being rewritten by WebVPN ...
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0answers
241 views

How to fix/troubleshoot AkamaiGHost TCP_Miss and 500 Errors

I have a java application running on a server in South America at the moment, and using Akamai's CDN. When I check the errors, i sometimes get the error: "HTTP/1.1 503 Service Unavailable" and "500 ...
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0answers
131 views

How to use an origin-pull CDN with external CNAMEs?

I have a particular issue that I'm struggling with regarding setting up a CDN. To describe our situation: We are running an ASP.NET based CMS(DotNetNuke), configured with two different web heads on ...
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0answers
572 views

Testing image load times CDN vs Nginx server

We have been running a website that contains quite large image gallery. We started growing and we need a new place to keep our images. So I started looking and testing. For testing purposes I created ...
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0answers
10 views

nginx proxy_cache store callback - store cache keys in mysql

I have multiple servers with nginx installed on them. We would like to cache large static content (> 1gb) on our nginx servers which is fetched from a remote storage server. We are trying to set up a ...
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32 views

Why does Cloudflare DNS always resolve to the same edge servers?

Cloudflare has servers all around the globe, yet it always returns the same set of servers for a website regardless of the requester's location. For example I've run dig for curse.com (which uses ...
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0answers
18 views

CloudFront CDN breaks due to DirectorySlash behavior of Apache

My CDN domain is set to www.mysite.com, and it reads from origin.mysite.com. mod_dir is enabled on apache, and so any request without a trailing slash is redirected with a 301 to the equivalent URL ...
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0answers
14 views

How to make amazon s3 files fast from anywhere in the planet?

I'm working on a project with user created content, users basically upload long mp3 files to the server which can then be played by other users. Recently users not from europe reported slow "seek ...
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40 views

Nginx Cache alterntive where two requests can populate large cache files simultaneously?

I am using Nginx as a caching reverse proxy for large files. It is important to me that the origin server does not have to output more bandwidth than necessary. So if the download of the file gets ...
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0answers
40 views

Is there a limit for the overall cache size on cloudflare?

I want to cache and pressed static JPG map tiles on cloudflare. Those around 10KB files each, but in total quite some GB. Is there a limit of objects or total size of cached objects? (Free Plan if ...
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0answers
38 views

DNS load balancing with multiple IPs on the same domain in GoDaddy

Looking for a cheaper solution than amazon CloudFront, I placed two "A" records with different IPs to different servers on the same subdomain in a NameSever managed by GoDaddy in order to achieve some ...
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0answers
251 views

Nginx CORS – Access-Control-Allow-Origin Header not added

I am struggling to get CORS header added to barely any file. I know the if statement might causes nginx to behave wired (http://wiki.nginx.org/IfIsEvil) but I haven't found another approach. Using ...
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57 views

Methods for selecting log_format with nginx for every request?

I'm using nginx/1.9 and CloudFlare as CDN. For one virtual host within my nginx web server there is the possibility to route through the CDN and route directly to my origin. Due to some legal stuff I ...
0
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0answers
47 views

How Do I Mask the CDN Domain with My Own Domain Name?

So i've been trying out cloudfront from AWS. Why is the URL 'example.com' resolving to 'example.com.s3.eu-west-1.amazonaws.com' in the Address Bar? I've tried googling loads of questions with this ...
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0answers
60 views

How to troubleshoot an invalid cached response

I've a Google Cloud Engine instance with Suse Linux 13.2 with original network config and without any configured proxy. And I've a problem with an invalid CACHED response I receive from a server. ...
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0answers
33 views

How can I find out if the response came from the edge server or the origin (CDN)

Is there a way to find out where the response response came from? From the CDN in Korea or my origin in L.A? Example1: Response headers: Server: Apache Example2: Response headers Server: AkamaiGHost ...
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0answers
137 views

Configure pagespeed nginx when used cdn url on html already

I'm using pagespeed for Nginx. I've used AMZ CloudFront and in my website html rendered, the urls are something like: <script type="text/javascript" ...