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RESEARCH 》 How to check a website using CDN ?

If you are new to CDN Technology, you can read the Introduction of CDN (Content Delivery Networks or Content Distribution Networks) over HERE.

Using a CDN for a website is a always suggested based on the popularity of your website. But do you know how to check if a website is using a CDN ?

Here is how you can check quite easily.

Lets take for example Facebook. Open the Facebook website in your browser.
1-research-how-to-check-a-website-using-cdn-facebook

Do right-click and select the “View Page Source” option in the menu:
2-research-how-to-check-a-website-using-cdn-facebook-view-page-source

Now search for keywords such as “cdn”, “edge”, etc. You can find the website resources (such as scripts/images/etc) should be pointing to alternative links as shown below:
3-research-how-to-check-a-website-using-cdn-facebook-page-source

In this case Facebook contains the resources with URLs pointing to CDN hosted locations. As you can see it has the location “m-static.ak.fbcdn.net”. This stands for: Static Akamai Facebook CDN. So this is a clue that Facebook is majorly hosted on Akamai CDN.

But one should also understand since Facebook is so massive, Facebook may/will contain its own CDN (or cloud sort of) infrastructure. But if this goes beyond a massive scale, certainly they can get outside world CDN subscriptions as in this case they got via Akamai.

Let us see another example such as the website ComputerWorld online magazine.
4-research-how-to-check-a-website-using-cdn-computerworld-page-source

In this case ComputerWorld is using the Edgesuite.net. Edgesuite.net is run by Akamai Technologies more specific for AD content. So once again we can see how a website uses a CDN Service.

In the case of Linkedin, it uses the Limelight CDN service/vendor. You can see the resource URLs containing static.licdn.com.
5-research-how-to-check-a-website-using-cdn-linkedin-page-source



Suggested Topics:


Generic CDN


Building my own CDN

💎 TOFFEE-MOCHA new bootable ISO: Download
💎 TOFFEE Data-Center Big picture and Overview: Download PDF


Tópicos recomendados:

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TOFFEE-Butterscotch Documentation :: TOFFEE-Butterscotch-1.0.11-rpi2-23-nov-2016

TOFFEE Download :: TOFFEE-1.1.70-1-portable ↗
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TOFFEE-DataCenter as a VNF for NFV ↗
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VPN Network Optimization via TOFFEE WAN Optimization ↗
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VPN Networks may degrade network performance due to various packet processing overheads such as encryption and by adding extra network protocol header(s) (such as IPv4/IPv6, IPSec, etc). This may inflate near MTU sized packets and causes excessive packet fragmentation. Here are the few examples of packet processing involved in a VPN (or a VPN like) Tunnel. With TOFFEE you can optimize these packets even before they get processed on to a VPN device. TOFFEE optimizes packet contents (application payload and transport headers) so that these TOFFEE optimized packets when they get processed by VPN devices (or VPN software stack) they may never need further packet fragmentation. Here is a deployment scenario of TOFFEE with VPN devices.



TEST CASES :: TEST RESULTS :: TOFFEE-Mocha-1.0.32 asymmetric constant packet delay feature ↗
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TOFFEE deployment topology guide ↗
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Assume you have two sites (such as Site-A and Site-B) connected via slow/critical WAN link as shown below. You can optimize this link by saving the bandwidth as well possibly improve the speed. However, the WAN speed can be optimized only if the WAN link speeds are below that of the processing latency of your TOFFEE installed hardware. Assume your WAN link is 12Mbps, and assume the maximum WAN optimization speed/capacity of Raspberry Pi is 20Mbps, then your link will get speed optimization too. And in another case, assume your WAN link is 50Mbps, then using the Raspberry Pi as WAN Optimization device will actually increase the latency (i.e slows the WAN link). But in all the cases the bandwidth savings should be the same irrespective of the WAN link speed. In other words, if you want to cut down the WAN link costs via this WAN Optimization set up, you can always get it since it reduces the overall bandwidth in almost all the cases (including encrypted and pre-compressed data).

Replacing in Lab Intel Core i7 5820K Desktop PC with Intel Celeron 1037U Mini-PC ↗
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As a research experiment I replaced my Intel Core i7 5820K desktop PC with my Intel Celeron 1037U Mini-PC as my everyday desktop system. This is an attempt to reduce my overall monthly power consumption. As well an attempt to do feasibility tests and research to know how far Mini PC will dominate the market in future and to study the real potential of Mini PCs.

Tracking Live TCP Sessions (connections) - WAN Optimization Device ↗
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Featured Educational Video:
Assista no Youtube - [89//1] B.E and M.E Final Year Projects - Form your Team ↗

TOFFEE-DataCenter Live Demo with Clash of Clans game data - 30-Aug-2016 ↗
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Today I have done a test setup so that I can able to connect my Android Samsung Tab via TOFFEE DataCenter. Below is my complete test topology of my setup. For demo (and research/development) context I configured TOFFEE DataCenter in engineering debug mode. So that I do not need two devices for this purpose.

TOFFEE-Mocha Documentation :: TOFFEE-Mocha-1.0.18-1-x86_64 ↗
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TOFFEE-Mocha WAN emulator Lab deployment and topology guide ↗
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TOFFEE WAN Optimization software development, roadmap, live-demo - Update: 06-Nov-2016 ↗
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Here are some of the screenshots of the new upcoming TOFFEE WAN Optimization release and live demo.




Demo TOFFEE-DataCenter WAN Optimization packaging feature ↗
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Research :: Optimization of network data (WAN Optimization) at various levels:
Network File level network data WAN Optimization


Learn Linux Systems Software and Kernel Programming:
Linux, Kernel, Networking and Systems-Software online classes [CDN]


Hardware Compression and Decompression Accelerator Cards:
TOFFEE Architecture with Compression and Decompression Accelerator Card


TOFFEE-DataCenter on a Dell Server - Intel Xeon E5645 CPU:
TOFFEE-DataCenter screenshots on a Dual CPU - Intel(R) Xeon(R) CPU E5645 @ 2.40GHz - Dell Server