A content delivery network or content distribution network (CDN) is a system of computers containing copies of data placed at various nodes of a network.

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Where does content distribution network come into picture for youtube

I have vaguely heard of CDNs (Content Distribution Network) and I suppose they come into picture in context of multimedia(audio/video) online sites like youtube. My question is what really are these ...
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996 views

Why does Google PageSpeed Insights show a lower score for my website when using a CDN?

I'm trying to improve my site's PageSpeed. So far so good, I received score of 91 points for mobile and 97 points for desktops using Google PageSpeed Insights. However, when I add a CDN service for ...
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78 views

Determine Original Domain from CDN URL

Given a URL with a CDN domain (e.g. a1856.g2.akamai.net), is there a way to find out the original webpage/service that was requested when it was delivered via that CDN? I am monitoring my internet ...
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102 views

Possible SEO issues with setting up CDN

I am about to enable CDN on one of my new sites and want to avoid any duplicate content/ranking issues. By default WP engine CDN url's are configured the following way: This url: ...
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1k views

Webmaster Tools “Fetch as Google” doesn't fetch my js/css/images on a CDN

I've discovered that when I do Google Webmaster Tools --> Fetch as Google on a page on my site (let's call it http://example.com), it shows the static assets (js, css, and images) as Temporarily ...
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38 views

SSL website with non-SSL images only content delivery network

I am serving my own CDN using subdomains for static images only, and want to use a SSL cert on the main website. For example; https://www.example.com would download images from ...
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398 views

Alternatives to google static maps [closed]

Goood Day Essentially I am getting hammered with costs for google static maps as I have a reasonably high traffic website and need to place a static map image on many of the web pages. Google want to ...
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393 views

Amazon Cloud Front - Changing the origin domain

Currently have a Cloudfront CDN with an Origin pointed to http://mysite.com. The CDN URL is something like jr27a8vopf32a.cloudfront.net. Currently there are a lot of external consumers of a file ...
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1k views

Is there a CDN for large files that doesn't need a manual upload?

I have a MaxCDN account. I am using their pull zones and it works perfectly (they autoamtically download .css, .js etc from my server) Now I would like to use the cdn for large file too, but MaxCDN's ...
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279 views

Is Google Page Speed Service a competitor for CDN services

I've been googling around for a cheap CDN service and came across: http://code.google.com/speed/pss/index.html This seems to be a competitor to other CDN services, is this the case? Thanks
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1k views

What is the difference between CDN networks and which one is the best out there?

I run a popular site for which I would like to use a CDN network. So far I have found NetDNA since it is easier to setup with W3 Total Cache plugin. There is Rackspace Couldfiles and Amazon. But ...
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40 views

Which is better for linking to external resources on a webpage?

What is the recommended way for linking to external CSS files and JavaScript files on a HTTPS secure webpage, e.g is it better to use: ...
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26 views

When CloudFront is activated some elements are failing to load

I use WordPress and I'm using CloudFront as my content delivery network. When activating CloudFront some elements, practically icons are not loading, what could be the problem?
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97 views

Low cache hit rate with Cloudflare

I am using a free Cloudflare account with a WordPress site and have seen consistently poor cache hit rates. After several weeks using Cloudflare, only about 22% of requests and 50% of traffic by ...
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65 views

How to SpeedUp? Small Wordpress page, 447kb, load time ~3sec

Testing: Under NameCheap shared hosting my 5 page Wordpress site first page is 447kb HTTPS and 23 requests but takes 3 seconds to load (pingdom). That is rather poor right? Tried a second time ...
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88 views

Setup www as main domain on Cloudflare

I'm trying to setup Cloudflare so my www subdomain doesn't redirect to the http naked domain and do exactly the opposite: mydomain.com redirecting to www.mydomain.com Cloudflare automatically ...
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38 views

Full Boostrap from CDN vs custom version from own server

The last few versions of Twitter Bootstap can be customized to include only the components you need. The full version, with all the components, can be served from a wide variety of public CDNs ...
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74 views

Can I make CloudFlare alias any /* request to a specific page?

I would like to serve any www.domain.com/* route with a specific static HTML page in my server. Is it possible to do this at a CDN level, for example using CloudFlare? For example: ...
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438 views

Google crawl rate dropped after activating CloudFront

Previously we've been using Amazon CloudFront for our static content (js, css etc). But to be able to reduce load on our origin servers and to be able to give our international users a good user ...
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179 views

How to identify and control which CDN location serves my website?

I have configured Akamai CDN for my site. I need to know which CDN location is used when I load my site. Is it possible to specify the CDN location to use? Can we by-pass the Akamai CDN so that site ...
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144 views

How to cache on CloudFlare images that are served to client as JSON?

I am using a gallery on my website that gets list of images from a JSON sent by a php script. So, the javascript gallery calls PHP backend and it replies with complex JSON where images are specified ...
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190 views

CDN virtual subdomain causes duplicated content

I have created a subdomain and a CNAME record which points to the domain root. The subdomain www.static.example.com is actually a copy of the entire website www.example.com and it is supposed to act ...
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61 views

How do I pick a host with the fastest access to a third party API?

I'm developing an application that relies on an API that is very time-sensitive. Every millisecond advantage I have over my competitors the better. Is there a good way to determine the optimal ...
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83 views

Why do CDNs charge so much for private SSL? [closed]

I've been looking at various CDN services, and many of them seem to charge a pretty hefty fee compared to the free shared SSL offering. One in particular, CDN77, is offering private SSL for $700/year. ...
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257 views

Using a CDN for CMS software (multiple sites)

I'm currently researching ideas for the media management side of a CMS I'm writing. I was looking at having images served from a CDN which is fine on a single site, but I want all sites that run the ...
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657 views

Impact of using a CDN Proxy (like Incapsula or Cloudlfare) with numerous websites

We have a network of something like 70 websites. We have one IP by website for SEO reason. We are planning to move to CDN service like Cloudflare, Incapsula or Google PageSpeed Service to speed up our ...
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160 views

One CDN with origin pull and two servers

I have two dedicated servers serving the same website. I am thinking of adding CDN to it... Since the CDN will pull the contents from server, my concern is won't it have any naming conflicts ??? To ...
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91 views

Cache website via CDN for visitors, not for users

I'm not sure what this is called. For example, if you're logged out of Reddit, you see a cached, static version of the site from the CDN. When you're logged in, you don't hit the CDN and instead ...
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132 views

CDN help, who should I go with and any alternatives? [closed]

I have a image hosting site which has grown rapidly over the last 3months and I feel I need to look at a CDN. The dedicated server the site runs on is located in Holland (Europe) whilst image load ...
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232 views

How to update DNS Zone for a static domain

I am running this site: www.thetechnofreaks.com on Wordpress. Recently I came across a plugin that claims to increase the page load efficiency of my site. the plugin details can be found here: ...
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3k views

Using CDN vs having your own static server, and how it's done?

I would like to speed up my site and am considering moving all static files and user uploaded content to a separate server. I have an option to use a CDN or to setup my own static server and serve ...
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2answers
514 views

Whole site caching on MediaTemple's ProCDN - cname setup

Am unable to properly configure ProCDN to point to my website's root. I have a completely static website: http://thaifood-recipes.com no PHP, MySQL, etc. Just static HTML, images, CSS, etc. I have ...
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117 views

Use a CDN to handle UGC uploads

I was on the phone with a sales guy from Akamai and he mentioned that they offer a service that can handle user generated content uploads (videos in our case) to their edge network. Unfortunately, ...
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19 views

CDNify Not Getting Assets

I'm trying to add my website as a resource on CDNify, but it doesn't seem to be fetching my assets nor caching them. From their website: How long does it take the CDN to setup? 5-10 minutes, ...
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29 views

How to prime cache on all location of a cdn

I have just started using MaxCDN to serve static resources faster (images, js and css mostly). It works great, as long as the data is cached on the cdn's location that is close to where I live. But ...
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19 views

speed boost for just a subdomain

Because I'm hesitant to jump into new products for my website, I'm looking for a special free CDN that I don't know if it exists or not. I tried incapsula on my mobile site, and unfortunately, it ...
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25 views

CDN change check

After I push a change to our assets origin, is there a way for me to check if this change has indeed cascaded everywhere on our CDN? I am looking at something similar to what OpenDNS Cache check does ...
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377 views

Does Server Location matter for SEO if you have a CDN?

I'm looking into specialised hosting for WP, one provider has three different server locations but none in the UK. However, they have over 30 CDN locations. My question is, if I decide to put my site ...
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149 views

Google PageSpeed: Generating critical css for css file served from CDN

We were trying to optimise the website using google pagespeed and now having some issue: We're using nginx_pagespeed module Trying to enable the prioritize_critical_css filter Since the CSS files ...
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20 views

Does hosting images on a CDN impact SEO? [duplicate]

I manage two sites (foo.com and bar.com) which share image assets. Currently the images are all on the foo.com domain which is a bit confusing if you open the image on bar.com and see a foo.com URL. ...
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12 views

How to combine GZip + CDN for faster page loads? [duplicate]

I made a Speed Test on my site via online tool. The tool recommended enabling compression to speed up the site. As far as I understand this requires some changes on server (already done by hosting ...
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77 views

What is the best way to invalidate an entire Amazon CloudFront cache or recreate the entire distribution?

After asking this question, I have decided to recreate some CloudFront distributions, as so many files need to be invalidated. But instead of creating a new distribution, is it possible to just ...
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17 views

Hosting of static content without server, only through CDN [duplicate]

My content is fully static, using only HTML, CSS, JS. It's only one page, which needs to load really fast from any country, and should be online for only 3 months. I already have the domain name. I ...
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373 views

How to view website from different locations [duplicate]

I'm trying to view my website from different locations around the world. I tried browser shot but it's not really accurate and does not allow me to select which country I want. I specifically want ...
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1answer
260 views

How to keep a local copy of all images and still serve images from Amazon S3?

I'm using amazon s3 to host assets for my site (mainly images). At the moment when a user uploads an image via a form, the php script uploads the image directly to my bucket on s3. I would like to ...
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188 views

Is there a limit of emails/pictures per Gravatar account?

I'm building a site to connect patients to doctors. Each doctor will have a profile picture. I'm quite happy to manually maintain the profile pictures as there won't be that many doctors nor will they ...
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148 views

Most immediate CDN

I'm interested in the user experience effects of a near-instantly loading home page. Are there CDNs specifically designed to serve tiny data, like a 500-byte HTML page, to the browser as fast as ...
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134 views

Reference single javascript file from many web applications

I have a javascript file (called secure.js that has several functions defined in it. I also have a Visual Studio solution with ten different ASP.NET web applications. I want to be able to call the ...
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38 views

What CDN features are the most important when picking a CDN provider?

Price and a number of PoP's surely do matter. But if I was after choosing one CDN provider out of 10 similar ones, what CDN features would be the most important? Which ones do really matter for ...
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2answers
75 views

Why is there a DNS lookup from Bootstrap CDN that is no longer installed on my site?

I am having a BIG problem. Most of the DNS lookups are suppose to be on the following site: http://gtmetrix.com/reports/ytadvisers.com/6eIsggZE Again this one DNS lookup URL will not go away. ...