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.

learn more… | top users | synonyms (1)

0
votes
1answer
185 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 ...
1
vote
1answer
183 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 ...
0
votes
1answer
243 views

CDN CNAMEs not resolving to customer origin

I have set up an Edgecast CDN to mirror all my static content. Because I use the root of my domain (donaldjenkins.com) to host my main site—using Google Analytics which sets cookies—I've stored the ...
2
votes
1answer
197 views

Does changing the picture folder path of older website affect SEO?

I have a 2 years old WordPress based picture website. Now I am planning to use CDN for my website. But the problem is I have to move my picture folder to a subdomain. For instance my current path is ...
3
votes
5answers
2k views

Does it matter where a server's physical location is?

I am located in the UK, and most of my clients are also in the UK. However. I find some of the products available in the US to be easier to use. I won’t name specific companies, but the price and ...
2
votes
1answer
432 views

Problems Using CloudFlare On Blogger

Here's the situation. I got a TLD for my blogger blog and set it up using the instructions from blogger. Blogger asks to: Add two CNAME records. For the first CNAME, where it says Name, Label or ...
35
votes
4answers
6k views

Why do big sites host their images/css on external domains?

Why do big sites (Facebook, Twitter, Google, Tumblr & so on) host their images/css on external domains? Facebook: http://static.ak.fbcdn.net/ Twitter: http://a0.twimg.com Google: ...
1
vote
2answers
390 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 ...
3
votes
1answer
146 views

CName for static images - will Google crawl?

I am planning to serve images on a CDN using a CNAME: images.mysite.com. I am doing this because CDNname.mysite.com makes ugly URL's and MAY be bad for SEO (debatable). Will Google crawl the ...
2
votes
1answer
411 views

Could a CDN serving static images result in decreased search engine rankings? [duplicate]

I have set up Cloudfront on my site to serve static files only. This results in the image file's URL to change from: mysite.com/image.jpg to uniqueid.cloudfront.net/image.jpg Will this affect how ...
6
votes
3answers
486 views

Creating a CDN to boost page ranking?

I had a thought about CDNs and if they affect page rankings. Lets say hypothetically if I was to create a CDN as a subfolder in my site. This folder would contain a resource that is useful e.g. ...
0
votes
1answer
146 views

Will moving Images to CDN effect Google Image search results? [duplicate]

I'f moving images on a site to a CDN how does this effect the image results in Google image search? Will any images come up in Google image search coming from the site?
7
votes
2answers
172 views

Separating static/uploaded content from the site

I have a site where I anticipate to have a large amount of users. I've heard that it is a good idea to separate user content (uploaded images) and place them on a separate static server where lighttpd ...
0
votes
1answer
197 views

Should I add the CDN or the source URL of an image to the XML image sitemap?

I'm creating a WP plugin and I have the source URL for the image and the CDN URL to the image as well that is generated by replacing the host to the CDN host. Which is better, if I add the source URL ...
3
votes
9answers
253 views

How do you enhance your websites speed without compromising the design and access?

How do you enhance your websites load speed without killing the design and accessibility? File compression, CDN, Gzip? What are the best tools for doing so? For example, Google has optimized their ...
2
votes
1answer
221 views

Internal CDN and setting up subdomain to increase maximum parallel connections

I've heard that browsers can have around maximum of 6 parallel connections per domain at a time. So I decided to have another subdomain "cdn." then use mod_rewrite to point to media folder then ...
0
votes
2answers
70 views

Does google take into account page load differences from caching?

Here's what I mean by that. If I use internal CSS, the page will load a bit quicker on the first time it is visited, but with external CSS a user can cache the document and load the rest of the site ...
4
votes
5answers
776 views

Is it ethical to use Google Analytics on a site crime victims use to make 'anonymous' reports?

Our local police force have a website for rape victims to use to report attacks anonymously. At the top of the page is a 'Report anonymously' link, which takes you to a page using Google Analytics as ...
2
votes
0answers
12 views

I want to build a script CDN for my place of employment [duplicate]

I write a bunch of scripts (javascript, php, perl) for my work. Right now, people have to get the scripts themselves from our sharepoint, and then install it as either a bookmarklet or a greasemonkey ...
3
votes
2answers
716 views

Images on a subdomain, hosted on the same server — will simultaneous downloads increase? (CDN)

Browsers only allow you to download a limited number of concurrent files from the same domain. Would a subdomain for images (basically as a content delivery network) on the same web hosting server ...
3
votes
2answers
241 views

prevent hotlinking of off-site content?

I have a www.example.com site where I serve all static content (e.g. http.//www.example.com/image.jpg) off a CDN with URLs like http://static.example.com/image.jpg An Apache 2 .htaccess rule ...
17
votes
4answers
21k views

Is the Bootstrap CSS on a CDN yet?

Just checking to see if anyone knows of a CDN for the bootstrap css framework.
2
votes
1answer
58 views

Slower site with the *same* configuration than a mirror copy…?

I've got this Drupal site (ligadelconsorcista.org) that I have to move it from one server to another. The reason was that my older host even when it was pretty decent, it started a couple of months ...
6
votes
1answer
639 views

Does google contribute ranking from cdn.example.com to example.com?

Background From my understanding, http://mywebsite.com/image.jpg, can help the ranking of http://mywebsite.com in a search engine, such as Google (obviously the search engine of primary concern). ...
2
votes
0answers
100 views

CDN for zocial css file [closed]

I am looking to use zocial css file for a site and need to figure out if any CDN hosts this file. If not, I will resort to using the local server (or my own CDN package). I do not think relying on ...
0
votes
1answer
133 views

Setting Up CDN…beginner questions

I am using MediaTemple web hosting and they are using Edgecast's CDN network. I am planning to join CDN service, so I read through the guide, but I am confused about the 'Update your code' section: ...
1
vote
1answer
131 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 ...
1
vote
1answer
205 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 ...
2
votes
1answer
82 views

CDN for site with target market in Australia

I was told that http://www.edgecast.com/ is very good CDN provider for Australian market. I have a cloud server based in Sydney Australia but was wondering whether it's even worth getting cdn as my ...
10
votes
2answers
2k views

Image CDN with API?

My company uses flickr and picasa web albums as poor man's content delivery networks (CDN) for image hosting, but I'm curious if anyone has any recommendations on any other services that might be ...
0
votes
0answers
9 views

Non-dynamic CMS [duplicate]

Some of the web sites I visit every day (news, sports, etc..), although the content changes very often (several times per day), the URLs always have .html extension, what makes me thing that the ...
3
votes
3answers
74 views

About cdn architecture to route way

Our web system, use the third-party cdn service. Assume that the user set the local dns with the googledns or opendns to visit our web sites, so cdn service will select the closest cdn proxy node. ...
5
votes
1answer
199 views

Is Cloudflare unzipping gzipped dynamic content?

I'm using Cloudflare for a small website that is frequently accessed from mobile phones where bandwidth usage is crucial. I used to gzip every php response and this reduced my bandwidth usage, ...
1
vote
2answers
79 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 ...
3
votes
2answers
71 views

Web hosting for Israeli visitors

I developed a version of a client's main website in Hebrew. Most of the Hebrew site visitors will be coming from Israel. My server is fast in the States but sluggish in Israel (per some ping testing). ...
5
votes
1answer
3k views

HTTP Header Cache Time: s-maxage and max-age

I am setting up a CDN for my website, I found the following sample for adding to the 'httpd.conf' file, this is used to adjust the cache-time for client and CDN: ExpiresActive On ExpiresByType ...
3
votes
3answers
322 views

Cloudflare in cpanel is it a no brainer?

I recently noticed Cloudflare cdn service add on in my cpanel. I understand what CDN is, but though it was a more complicated process than the one-click solution that seems to be offered in cpanel ...
1
vote
1answer
123 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 ...
2
votes
2answers
298 views

Do Google/Twitter etc actually use distributed servers to serve their resources?

I'm trying to optimize my website and running a few tests using webpagetest.org. I tried the test from Singapore and Hongkong. I saw that while all facebook, quantcast, chitika scripts were loading ...
2
votes
2answers
225 views

Do any CDN services offer multiple urls (or aliases) for your files?

Lets say a company has multiple commercial web properties that happen to use a lot of the same images on each site. For SEO reasons, the sites must not appear to be related to eachother in any way. ...
3
votes
1answer
3k views

Can Amazon Cloudfront files be served GZIP'd?

If i'm running a WordPress website with the W3TC plugin installed, and have my static CSS/JS minified files hosted on Amazon's CDN, is there a way to serve them GZIP'd? I have the basic understanding ...
1
vote
1answer
219 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 ...
3
votes
1answer
116 views

Significant drop in SERPs on 12th November 2011

Earlier this year I decided to have a look at the SEO of our website. We noticed almost immediately that we dropped significantly in the SERPs for the keyword 'probiotics' (plural) on the 12th ...
2
votes
3answers
537 views

DNS lookup when using a CDN

Using a CDN can vastly improve the load time of a website. I been thinking of using it to host all my external files like CSS, JS, Images, Videos etc. However I was thinking when linking to a CDN, ...
1
vote
2answers
761 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 ...
1
vote
2answers
2k views

why is my site slower with amazons cdn?

so I have move most of the static objects to amazons Cloudfront CDN example: http://images.storyfollower.com/images/cycleOfStories.jpg which through cname point to the cdn Now I just ran a speed ...
2
votes
1answer
247 views

Is there any other CDN than Amazon which supports hadoop?

I need know about CDN which offers to store HDFS . I know amazon offers such service but i am looking out if some others are giving some better service , additional features or cheaper service. Please ...
1
vote
2answers
424 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 ...
6
votes
2answers
859 views

How does a CDN work on the tech side?

I never used a CDN before so this is a noob question, but how does it work on the tech side. For example right now when a user uploads an image on my site it is uploaded to the "/uploads" folder at ...
0
votes
1answer
46 views

Content Delivery Policy setup

I want to secure my website using a Content Security Policy. I'm came up with the following policy: X-Content-Security-Policy: default-src https://www.example.com https://static.example.com; ...