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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How to warm a pull CDN?

I have low traffic on my website. When a (rare) user load my page the CDN is often cold / out-dated so it needs to pull the content from my origin. How can I keep the cache warm in every CDN edge? ...
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1answer
175 views

Media Server Stack [closed]

What would be, software wise, a good Stack to use for a media server, considering the Ubuntu OS (8.10 up)? This is supposed to serve large QuickTime video files (.mov) with > 100Mb in average. We ...
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2answers
2k views

How to Tell Whether a site is using Akamai Networks

I'm trying to understand precisely how Akamai uses DNS lookups to redirect users to proximate servers. As I understand it, the client's browser tries to resolve a DNS name, such as ...
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1answer
20 views

CDN - find the source IP [closed]

I want to communicate directly with website using CDN (Akamai, CloudFlare, etc.) Anyone knows if is it possible to find the IP address of websites using Akamai? or CloudFlare? I have tried to ping ...
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3answers
160 views

CDN question - factor bandwidth

I am new to cdn but want an idea of bandwidth use so i can plan budgeting. I am starting a social network and want to use a CDN for static content and user photos. Let's say in total i have 15 ...
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0answers
20 views

Misses in cloudfront CDN

I am a bit new to the world of CDN's. I am also running an internationa site, which we hope will one day have a lot of traffic, but for now trickles in. Site uses a image resizer behind a CDN to serve ...
2
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0answers
30 views

Most bandwidth efficient setup for video sharing [closed]

I built a video sharing platform for a popular french podcast I contribute to. Initially I used S3 and linked directly to it, bad idea. Then I used a pull CDN to better optimize my bandwidth, but s3 ...
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5answers
39k views

How can I verify that an RTMP stream URL is working?

I have been put in charge of setting up a CDN account for streaming video but am not actually running the site that will host the content. How can I test that a published RTMP URL is working? Do I ...
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0answers
21 views

Cloudfront objects being ejected from edge locations too early?

Cloudfront does not guarantee that it will hold an object in it's edge locations for any duration, however, typically, if I set a Cache-Control:public, max-age=31550000, smax-age=31550000 or a ...
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2answers
4k views

Using Google's App Engine as CDN for static files

I am planning on moving my static files to Google's App Engine. I was wondering if this is a good idea to do. I have read that is it possible that Google will cache your files on multiple locations, ...
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1answer
16 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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2answers
490 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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1answer
2k views

Akamai / CDN - How much do CDNs like akamai cost? [closed]

I haven't been able to find any numbers related to cost via google or price sheets. How much do these services realistically cost (akamai, limelight, any of them)? Are there any good CDN ...
5
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3answers
5k views

Akamai NetStorage vs. Akamai edge service

What's the difference between using Akamai NetStorage vs. Akamai's Edge Service? Below are the concepts that I believe differentiate them but I'd like more details from more experienced people. ...
5
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3answers
3k views

Akamai vs smaller CDN for small/medium-size ecommerce traffic? (caching, latency, NetStorage)

The small/medium sized online retail company I work for uses Akamai as our CDN for static images, but I'm wondering whether it might be hurting rather than helping and, if it's suboptimal, what we ...
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0answers
359 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: ...
6
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3answers
2k views

Using EC2 as a Cloudfront Origin Server

Amazon has recently added the ability to use any server as an origin server for Cloudfront, removing the original S3 only restriction. My question is- how do I set this up? The AWS web-gui seems to ...
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0answers
130 views

Receiving a CORS header error while loading a font from CDNify

Description I am receiving a few issues loading fonts for my website from my Content Delivery Network (CDNify). When I load my website http://techgroove.net/ (I will refer to this as [link] from here ...
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2answers
658 views

How can I handle big traffic spikes on my dedicated server?

I have an E-Commerce site, which gains a sudden peak of very high traffic when I turn on different ads campaigns. From this moment on, my current dedicated server (Hostgator, 4GB Memoray, 100mbps ...
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2answers
203 views

Do CDN providers run their own DNS servers?

In order to have efficient CDN, it needs to direct requests to the server nearest to the requester. How do they do that? Do they run their own DNS server that, when asked to resolve an address, it ...
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1answer
93 views

Force AWS CloudFront to refresh resources from origin without user requests

I'm deploying a CloudFront distribution for a widely distributed network. I'm using my own server as origin and I've configured the cache expiration to a custom value (say 24 hours). Everything works ...
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4answers
4k views

Should AWS CloudFront *increase* load time for infrequently accessed files?

I am new to CDNs and experimenting with CloudFront. I have set everything up and all appears to be working fine. I can create a static image on a page and access it though my CloudFront distribution. ...
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2answers
47 views

Do I need CDN if I am target to small region?

I have website which is targeting to small geografical area, the bigest CDN companies don't even have CDN servers close to this area. I am wondering will I get any benefit to use CDN, becouse main ...
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1answer
97 views

some european CDNs? [closed]

someone knows some CDN providers in Europe? cause i keep seeing big names like amazon, google, akamai, simplecdn, yahoo in all google searches. does it even matter where the CDN providers are ...
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6answers
3k views

When does a CDN (content delivery network) become worth it?

At what point is it worth adding a CDN (content delivery network) to your website? Does it make sense to use it for a relatively low traffic website that's a web application? The clients are all over ...
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0answers
86 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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2answers
409 views

How do CDNs that don't require url rewriting work?

Will I have to change some DNS settings? If so, what would I have to change? Will they work automatically as long as I set the correct cache-control headers? EDIT: I'm completely new to CDNs and ...
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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
44 views

Problems accessing my servers - but only from German providers

I'm having a problem that I've been trying to resolve for months to no avail. I have several websites hosted on a dedicated server in the US. Those include http://noduslabs.com ...
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1answer
259 views

Slow Website Access from China

I just made a wordpress based website for a client that operates in China. The website is being cached completely by W3 Total Cache and served very fast in Europe (where our main server is located). ...
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1answer
55 views

CDN and TTL on local EC2 files

I Have a file in CDN and I need a local copy of it in all of my EC2 instances. I like to set a TTL on the local copy of 5 minute, and have one of the following: Have it Fetch automatically as soon ...
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0answers
197 views

Cloudfront - How to invalidate objects in a distribution that was transformed from secured to public?

The setting I have an Amazon Cloudfront distribution that was originally set as secured. Objects in this distribution required a URL signing. For example, a valid URL used to be of the following ...
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5answers
3k views

Pointing www to a CDN(Akamai)

Why would someone point(CNAME) www.example.com to a cdn? When I run host on Etsy, I get a [c]$ host www.etsy.com www.etsy.com is an alias for www.etsy.com.edgekey.net. www.etsy.com.edgekey.net is an ...
58
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11answers
16k views

Multiple data centers and HTTP traffic: DNS Round Robin is the ONLY way to assure instant fail-over?

Multiple A records pointing to the same domain seem to be used almost exclusively to implement DNS Round Robin as a cheap load balancing technique. The usual warning against DNS RR is that it is not ...
4
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1answer
367 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 ...
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1answer
87 views

Redirect to a CDN

I will like to distribute a javascript file with several of my clients, they have several thousands of unique visits a day on their pages, so my file will be called a lot of times, i don't want that ...
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1answer
62 views

Running a database heavy webapp in the UK and Aus server setup

I am running a webapp from a uk datacenter. Speed is fine as expected. The webapp relies heavily on a database. I would like to open the webapp to Australia and New Zealand but maintain good response ...
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3answers
611 views

How to block CloudFront or other CDN to access my website

Some guys create a CloudFront CDN to proxy my site, so people can access my website using url like df03039lsls933.cloudfront.net instead of www.example.com How to block this using nginx? From ...
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1answer
1k views

Google Cloud Storage vs Amazone S3 + Cloudfront? [closed]

So I am building a web service which is going to be hosting files up to 500mb in size, and am finished with the coding and now deciding on hosting. I see that Amazon Web Services is very popular, but ...
8
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2answers
10k views

How do CDN (Content Delivery Networks) server work?

There are many CDN (Content Delivery Networks) for hosting mainly static content. How do they work? How they handle http requests?
3
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1answer
336 views

How to do 'naked domain aliasing' like DNS hosts that support it?

My goal is to use GitHub Pages and also benefit from their CDN, without having to use a third-party DNS host that supports DNS ALIAS record types (or ANAME - neither are accepted standards). I want to ...
3
votes
1answer
1k views

Setting up CloudFront CDN on a cookieless root domain

I have recently set up an AWS S3 bucket for my site's static content, along w/ a CloudFront distribution for my CDN. I have this working using a sub-domain. However, after running YSlow, I realized ...
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1answer
148 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
61 views

AWS: In what situations would you NOT want to put your entire domain in front of a CloudFront distribution?

Given the relatively recent support for POST/PUT/etc. (http://aws.amazon.com/about-aws/whats-new/2013/10/15/amazon-cloudfront-now-supports-put-post-and-other-http-methods/), if you don’t require any ...
2
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0answers
191 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 ...
1
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1answer
776 views

Whole-site delivery on CloudFront

After much searching, I can't seem to find the question to whether it's viable to cache my entire website in Cloudfront. (Static assets as well as the HTML returned on a dynamic request). The Setup ...
2
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0answers
430 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 ...
2
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3answers
312 views

How to host a Wordpress site on multiple servers due to geographical siteload issues?

Wordpress website is currently hosted in the US, this is where 40% of our target audience is. The rest of visitors are coming form Middle east, Australia, Russia, China, Singapore, UK, Switzerland, ...
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1answer
265 views

Reverse HTTP proxy as CDN origin server, how to handle last modified since?

I'm trying to set up redundant origin servers for a CDN that will deliver on demand video files. The current setup is that I have two "media" servers that have a large storage capacity and are running ...
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2answers
460 views

How long does azure cdn live before updating

I am using the windows Azure CDN, And not like Amazon's one cannot configure any TTL regarding the files, I was wondering if there is any official document microsoft had regarding to the ...