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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98 views

Why does a CDN strip the file extension of an image to protect against leeching

So I was reading on Quora and came across this awesome picture: http://qph.is.quoracdn.net/main-qimg-fa81af575c5e0ef69d78fc011a71e865?convert_to_webp=true Trying to isolate this resource I noticed ...
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3answers
971 views

Cloudflare is it safe?

I am thinking of signing up with cloud flare, but since i'm not very familiar with the technical side of things, I wanted to ask here first. How safe is it to sign up with services, like cloud flare? ...
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2answers
2k views

How does a CDN like CloudFlare work?

What I understand so far: You keep your current web hosting, but you change the DNS servers for your site from the DNS servers of your current hosting to CloudFlare's DNS servers. CloudFlare serves ...
4
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2answers
174 views

Do browsers recognize the same files served by different subdomains?

I have my website assets stored on Amazon S3 and served by CloudFront, from a separate domain name, to act as a cookie-less domain (so website.com for the website and websitestatic.com for static ...
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2answers
55 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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0answers
17 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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0answers
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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1answer
4k views

How does CloudFlare's Rocket Loader actually work (and how can a developer ensure compatibility)?

CloudFlare has quite a ground-breaking technology called Rocket Loader (both on free and paid accounts). But how does it actually work? They have a couple of pages that describe the technology, but ...
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3answers
2k views

Does CloudFlare cache videos, and would this wildcard Page Rule work for that?

I'm setting everything up in my website to use CloudFlare. This is my example: On videos.domain.com/Folder-A/Folder-B/ there are some HTML files that I would NOT like CloudFlare to cache. But inside ...
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3answers
12k views

Is it possible to use cloudflare without having them managing my DNS?

I need to use cloudflare without having them managing my DNS, My DNS server have much more options that I do need. Instead of setting cloudflare as my dns server, I have added it as a NS record from ...
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1answer
3k views

How to make CloudFlare cache everything?

I want CloudFlare to cache everything, PHP files too, every request from the domain, I want it to cache it. Is this possible? (There are PHP scripts on the domain that print out images, JS and CSS, ...
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2answers
734 views

What's the most efficient & economical way to do GeoIP redirects for a high traffic site?

So, I'm setting up a new potentially high traffic site that's made up of several simple static pages. We want to host it as efficiently as possible, as we're both on a non-existent budget and may have ...
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2answers
12k views

Is there a way of using HTTPS with Amazon's CloudFront CDN and CNAMEs?

We use Amazon's CloudFront CDN with custom CNAMEs hanging under the main domain (static1.example.com). Although we can break this uniform appearance and use the original ...
0
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1answer
168 views

How to invalidate images on Amazon CloudFront after optimising them?

After checking on Google PageSpeed Insights, I have optimised the images on several websites using jpegoptim and optipng. Obviously a lot of the images are now smaller and they have new timestamps, ...
4
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2answers
375 views

Concerns about moving media files to a CDN and impact on SEO

I'd like to move all my media files to a CDN (Windows Azure is my best choice for now). Two questions : How can I avoid SEO and redirections issues for the previously uploaded media files ? For ...
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1answer
74 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. ...
3
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1answer
791 views

Do I set a DNS A Record for the new GitHub Pages to use their CDN?

GitHub updated their Pages service for custom domains yesterday and I'm not clear on one small detail. They recommend a CNAME record for www.example.com but do not recommend using A records for the ...
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2answers
697 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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3answers
639 views

Podcast site - Serve audio files with CDN

I am managing a small podcast website hosted on a shared server. Currently there are only eight or nine episodes, each of which are about 50 MB, so bandwidth is not really an issue at the moment. ...
2
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4answers
157 views

Splitting big CSS file into parts for quicker loading

So I have a relatively big CSS file. I thought about doing the following, splitting it to 3 parts: 1st part will have the main selectors that are needed to run on the main page that gets the biggest ...
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2answers
918 views

Is there a CDN for backbone.marionette?

Getting started with Backbone and Marionette, I was about to copy the file at https://github.com/marionettejs/backbone.marionette/blob/master/lib/backbone.marionette.js to my local server, but ...
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1answer
211 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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3answers
303 views

Is it possible to know where a CDN's servers are located?

Are there any tools or online applications that can list where a CDN's servers are located?
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1answer
161 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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5answers
3k views

What is the advantage to hosting static resources on a separate domain?

I notice a lot of sites host their resources on a separate domain from the main site, e.g. StackExchange using sstatic.net, Barnes & Noble using imagesbn.com, etc. I understand that there are ...
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3answers
967 views

Need a CDN with SSL [closed]

We currently use Edgecast through Speedyrails. Back when I did my research they were both fast and very cost-effective. I haven't looked in a while, but now we need SSL on our assets as well. I ...
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0answers
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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1answer
381 views

Using CNAME to point a subdomain to a CDN, will that affect SEO of the subdomain?

I want to install a CDN service on a subdomain of my site. Since the service requires the subdomain to use CNAME (to point to their servers), will that affect the SEO of the subdomain? I know that ...
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1answer
311 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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1answer
306 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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1answer
310 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 ...
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1answer
269 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 ...
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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 ...
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4answers
7k 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: ...
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2answers
554 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 ...
4
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1answer
201 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
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1answer
625 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
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3answers
513 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. ...
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1answer
174 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
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2answers
197 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
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1answer
304 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
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9answers
270 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
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1answer
289 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
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2answers
83 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
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5answers
836 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 ...
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0answers
13 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 ...
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2answers
1k 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
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2answers
350 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 ...
18
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4answers
22k 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
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1answer
61 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 ...