Comments for Now You Can - Rent An Encoder http://www.rentanencoder.com Thriller Media Group Tue, 26 Oct 2010 20:48:12 -0500 http://wordpress.org/?v=2.8.6 hourly 1 Comment on 8 Things to condsider when choosing a CDN by Rentanencoder http://www.rentanencoder.com/archives/236/comment-page-1#comment-114 Rentanencoder Tue, 26 Oct 2010 20:48:12 +0000 http://www.rentanencoder.com/?p=236#comment-114 <strong>Rentanencoder...</strong> [...] something about rentanencoder[...]... Rentanencoder…

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]]> Comment on Preparing and delivering content on a Content Delivery Network (CDN). by Mike http://www.rentanencoder.com/archives/283/comment-page-1#comment-101 Mike Tue, 18 May 2010 14:41:40 +0000 http://www.rentanencoder.com/?p=283#comment-101 The tool I'm using is something my company wrote. I can not share it with you, sorry. I think you are wasting your time trying to figure this out for Microsoft. They have built out their own CDN, they don't a commercial one always. Figuring out which piece of content is coming from the CDN or not will be nearly impossible. Plus MSN is behind a ton of load balancers and hundreds or thousands of servers. CDN is webservers, they just cache content and deliver it closer to the end user. Mainly, it's just Apache or IIS. I'm just curious, what is the point of this? It seems if you want to learn more about this, you could pick a smaller target. You might as well be trying to figure out how Google Works The tool I’m using is something my company wrote. I can not share it with you, sorry. I think you are wasting your time trying to figure this out for Microsoft. They have built out their own CDN, they don’t a commercial one always. Figuring out which piece of content is coming from the CDN or not will be nearly impossible. Plus MSN is behind a ton of load balancers and hundreds or thousands of servers. CDN is webservers, they just cache content and deliver it closer to the end user. Mainly, it’s just Apache or IIS.

I’m just curious, what is the point of this? It seems if you want to learn more about this, you could pick a smaller target. You might as well be trying to figure out how Google Works

]]> Comment on Preparing and delivering content on a Content Delivery Network (CDN). by siva.lanka http://www.rentanencoder.com/archives/283/comment-page-1#comment-100 siva.lanka Tue, 18 May 2010 04:54:42 +0000 http://www.rentanencoder.com/?p=283#comment-100 <a href="#comment-99" rel="nofollow">@Mike </a> Mike, Can you please let me know the tool you are using? Is it a freeware or commericial? Actually Iam trynig to know the cdn data from MSN. What are all the data that is coming from a CDN and what are from the webserver directly. Thanks, @Mike

Mike,
Can you please let me know the tool you are using? Is it a freeware or commericial? Actually Iam trynig to know the cdn data from MSN. What are all the data that is coming from a CDN and what are from the webserver directly.

Thanks,

]]> Comment on Preparing and delivering content on a Content Delivery Network (CDN). by Mike http://www.rentanencoder.com/archives/283/comment-page-1#comment-99 Mike Mon, 17 May 2010 14:38:25 +0000 http://www.rentanencoder.com/?p=283#comment-99 Siva, Level3 is a CDN Provider. Why are you trying to analyze MSN? Seems like a a big task. Microsoft uses a combination of their own network, components from Limelight, and caching from Akamai. It also depends which Microsoft domain you are talking about too. If you look at the page, there are a number of HOSTS, most of which are coming from 3rd parties. Things like advertisements, and other widgets. Those providers may or may not be using CDN to deliver their content. In this case, www.msn.com is an A-RECORD not a CNAME. It resolves to a single IPAddress, probably a Load Balancer of something similar. nslookup www.msn.com Non-authoritative answer: Name: us.co1.cb3.glbdns.microsoft.com Address: 65.55.17.26 Aliases: www.msn.com I have a tool which will analyze a web site. Below are all the HOSTS on the MSN.COM home page, where they resolve to and who owns the IPAddresses. What is your goal here? Just personal knowledge or are you trying to discover some piece of information? Hostnames for msn.com Hostname: www.w3.org Record Type: A IP: 128.30.52.168 Owner: Massachusetts Institute of Technology Hostname: col.stc.s-msn.com Record Type: CNAME CNAME Target: colstc.co1.cb3.glbdns.microsoft.com IP: 198.78.206.126 Owner: Level 3 Communications, Inc. Hostname: www.icra.org Record Type: A IP: 213.249.189.194 Owner: % This is the RIPE Database query service. Hostname: www.msn.com Record Type: CNAME CNAME Target: us.co1.cb3.glbdns.microsoft.com IP: 65.55.17.27 Owner: Microsoft Corp Hostname: www.rsac.org Record Type: CNAME CNAME Target: www.icra.org IP: 213.249.189.194 Owner: % This is the RIPE Database query service. Hostname: col.stj.s-msn.com Record Type: CNAME CNAME Target: colstj.co1.cb3.glbdns.microsoft.com IP: 205.128.65.126 Owner: Level 3 Communications, Inc. Hostname: ads1.msn.com Record Type: CNAME CNAME Target: global.msads.net.c.footprint.net IP: 198.78.206.126 Owner: Level 3 Communications, Inc. Hostname: msnportal.112.2o7.net Record Type: A IP: 66.235.139.121 Owner: Omniture, Inc Hostname: amer.rel.msn.com Record Type: CNAME CNAME Target: amer.hops.glbdns.microsoft.com IP: 64.4.18.73 Owner: MS Hotmail Hostname: exp.www.msn.com Record Type: CNAME CNAME Target: ro-msn.exp.glbdns.microsoft.com IP: 65.55.18.18 Owner: Microsoft Corp Hostname: g.msn.com Record Type: CNAME CNAME Target: g.msn.com.nsatc.net IP: 207.46.216.54 Owner: Microsoft Corp Hostname: analytics.live.com Record Type: CNAME CNAME Target: analytics.live.com.nsatc.net IP: 65.55.149.119 Owner: Microsoft Corp Hostname: www.bing.com Record Type: CNAME CNAME Target: search.ms.com.edgesuite.net IP: 63.110.246.16 Owner: WS/Akamai Technologies/Akamai Technologies UU-63-110-246-D6 (NET-63-110-246-0-1) Hostname: login.live.com Record Type: CNAME CNAME Target: login.live.com.nsatc.net IP: 65.54.186.47 Owner: Microsoft Corp Hostname: download.live.com Record Type: CNAME CNAME Target: download.live.com.nsatc.net IP: 65.55.61.125 Owner: Microsoft Corp Hostname: col.stb.s-msn.com Record Type: CNAME CNAME Target: colstb.co1.cb3.glbdns.microsoft.com IP: 65.54.75.140 Owner: Microsoft Corp Hostname: www.msnbc.msn.com Record Type: CNAME CNAME Target: www.msnbc.msn.com.edgesuite.net IP: 63.110.246.17 Owner: WS/Akamai Technologies/Akamai Technologies UU-63-110-246-D6 (NET-63-110-246-0-1) Hostname: local.msn.com Record Type: CNAME CNAME Target: local.blu.cb3.glbdns.microsoft.com IP: 65.55.206.199 Owner: Microsoft Corp Hostname: today.msnbc.msn.com Record Type: CNAME CNAME Target: msnbc.msn.com IP: 65.55.53.233 Owner: Microsoft Corp Hostname: entertainment.msn.com Record Type: A IP: 65.55.14.126 Owner: Microsoft Corp Hostname: wonderwall.msn.com Record Type: A IP: 67.201.39.229 Owner: Mzima Networks, Inc. NETBLK-MZIMA-04 (NET-67-201-0-0-1) Hostname: zone.msn.com Record Type: A IP: 207.46.166.10 Owner: Microsoft Corp Hostname: movies.msn.com Record Type: CNAME CNAME Target: entertainment.msn.com IP: 65.55.14.126 Owner: Microsoft Corp Hostname: music.msn.com Record Type: CNAME CNAME Target: entertainment.msn.com IP: 65.55.14.126 Owner: Microsoft Corp Hostname: tv.msn.com Record Type: CNAME CNAME Target: entertainment.msn.com IP: 65.55.14.126 Owner: Microsoft Corp Hostname: msn.foxsports.com Record Type: CNAME CNAME Target: www.foxsports.com.edgesuite.net IP: 63.110.246.11 Owner: WS/Akamai Technologies/Akamai Technologies UU-63-110-246-D6 (NET-63-110-246-0-1) Hostname: moneycentral.msn.com Record Type: CNAME CNAME Target: moneycentral.com IP: 65.54.150.19 Owner: Microsoft Corp Hostname: autos.msn.com Record Type: CNAME CNAME Target: web.autos.glbdns.microsoft.com IP: 65.55.182.112 Owner: Microsoft Corp Hostname: msn.careerbuilder.com Record Type: CNAME CNAME Target: www.careerbuilder.com IP: 208.88.80.22 Owner: CareerBuilder, LLC Hostname: realestate.msn.com Record Type: CNAME CNAME Target: lifestyle.blu.cb3.glbdns.microsoft.com IP: 65.55.206.197 Owner: Microsoft Corp Hostname: articles.moneycentral.msn.com Record Type: CNAME CNAME Target: articles.moneycentral.blu.cb3.glbdns.microsoft.com IP: 65.55.206.205 Owner: Microsoft Corp Hostname: lifestyle.msn.com Record Type: CNAME CNAME Target: lifestyle.blu.cb3.glbdns.microsoft.com IP: 65.55.206.197 Owner: Microsoft Corp Hostname: www.delish.com Record Type: CNAME CNAME Target: www.delish.com.edgesuite.net IP: 64.211.21.103 Owner: Global Crossing Hostname: glo.msn.com Record Type: A IP: 68.71.242.140 Owner: Zero Lag Communications Hostname: health.msn.com Record Type: CNAME CNAME Target: health.blu.cb3.glbdns.microsoft.com IP: 65.55.206.198 Owner: Microsoft Corp Hostname: astrocenter.astrology.msn.com Record Type: CNAME CNAME Target: www.astrocenter.com IP: 149.7.36.148 Owner: PSINet, Inc. ASTROCENTER (UK ) Ltd Hostname: dating.msn.com Record Type: CNAME CNAME Target: msn.match.com IP: 208.83.241.16 Owner: Match.com, L.L.C. Hostname: specials.msn.com Record Type: CNAME CNAME Target: specials.blu.cb3.glbdns.microsoft.com IP: 65.55.228.106 Owner: Microsoft Corp Hostname: my.msn.com Record Type: CNAME CNAME Target: my.co1.cb3.glbdns.microsoft.com IP: 65.55.17.32 Owner: Microsoft Corp Hostname: careers.msn.com Record Type: CNAME CNAME Target: us.chan.blu.cb3.glbdns.microsoft.com IP: 65.55.228.106 Owner: Microsoft Corp Hostname: msn.whitepages.com Record Type: CNAME CNAME Target: www.whitepages.com IP: 64.124.61.10 Owner: Abovenet Communications, Inc ABOVENET (NET-64-124-0-0-1) Hostname: yellowpages.msn.com Record Type: A IP: 65.55.241.167 Owner: Microsoft Corp Hostname: secure.opinionlab.com Record Type: A IP: 66.77.28.111 Owner: Qwest Communications Company, LLC QWEST-INET-12 (NET-66-77-0-0-1) Hostname: help.live.com Record Type: A IP: 65.55.162.252 Owner: Microsoft Corp Hostname: latino.msn.com Record Type: CNAME CNAME Target: latino.co1.cb3.glbdns.microsoft.com IP: 65.55.17.37 Owner: Microsoft Corp Hostname: blst.msn.com Record Type: CNAME CNAME Target: blst.blu.cb3.glbdns.microsoft.com IP: 205.128.93.126 Owner: Level 3 Communications, Inc. Hostname: view.atdmt.com Record Type: A IP: 65.55.116.181 Owner: Microsoft Corp Hostname: www.vacationstogo.com Record Type: CNAME CNAME Target: vacationstogo.com IP: 206.222.179.99 Owner: Insync Internet Services Hostname: www.forcefactor.com Record Type: CNAME CNAME Target: forcefactor.com IP: 174.143.32.234 Owner: Rackspace Hosting Hostname: ad.doubleclick.net Record Type: CNAME CNAME Target: dart-ad.l.doubleclick.net IP: 74.125.19.148 Owner: Google Inc. Hostname: ccc01.opinionlab.com Record Type: A IP: 66.77.28.73 Owner: Qwest Communications Company, LLC QWEST-INET-12 (NET-66-77-0-0-1) Hostname: www.ie8optimized.com Record Type: A IP: 174.143.45.130 Owner: Rackspace Hosting RSCP-NET-4 (NET-174-143-0-0-1) Hostname: go.microsoft.com Record Type: CNAME CNAME Target: www.go.microsoft.akadns.net IP: 207.46.16.233 Owner: Microsoft Corp Hostname: advertising.microsoft.com Record Type: CNAME CNAME Target: advertising.microsoft.com.nsatc.net IP: 65.55.249.222 Owner: Microsoft Corp Hostname: rss.msn.com Record Type: CNAME CNAME Target: rss.blu.cb3.glbdns.microsoft.com IP: 204.160.102.126 Owner: Level 3 Communications, Inc. Hostname: careers.microsoft.com Record Type: CNAME CNAME Target: careers.microsoft.akadns.net IP: 65.55.186.234 Owner: Microsoft Corp Siva,

Level3 is a CDN Provider. Why are you trying to analyze MSN? Seems like a a big task. Microsoft uses a combination of their own network, components from Limelight, and caching from Akamai. It also depends which Microsoft domain you are talking about too.

If you look at the page, there are a number of HOSTS, most of which are coming from 3rd parties. Things like advertisements, and other widgets. Those providers may or may not be using CDN to deliver their content.

In this case, http://www.msn.com is an A-RECORD not a CNAME. It resolves to a single IPAddress, probably a Load Balancer of something similar.

nslookup http://www.msn.com

Non-authoritative answer:
Name: us.co1.cb3.glbdns.microsoft.com
Address: 65.55.17.26
Aliases: http://www.msn.com

I have a tool which will analyze a web site. Below are all the HOSTS on the MSN.COM home page, where they resolve to and who owns the IPAddresses.

What is your goal here? Just personal knowledge or are you trying to discover some piece of information?

Hostnames for msn.com
Hostname: http://www.w3.org
Record Type: A
IP: 128.30.52.168
Owner: Massachusetts Institute of Technology

Hostname: col.stc.s-msn.com
Record Type: CNAME
CNAME Target: colstc.co1.cb3.glbdns.microsoft.com
IP: 198.78.206.126
Owner: Level 3 Communications, Inc.

Hostname: http://www.icra.org
Record Type: A
IP: 213.249.189.194
Owner: % This is the RIPE Database query service.

Hostname: http://www.msn.com
Record Type: CNAME
CNAME Target: us.co1.cb3.glbdns.microsoft.com
IP: 65.55.17.27
Owner: Microsoft Corp

Hostname: http://www.rsac.org
Record Type: CNAME
CNAME Target: http://www.icra.org
IP: 213.249.189.194
Owner: % This is the RIPE Database query service.

Hostname: col.stj.s-msn.com
Record Type: CNAME
CNAME Target: colstj.co1.cb3.glbdns.microsoft.com
IP: 205.128.65.126
Owner: Level 3 Communications, Inc.

Hostname: ads1.msn.com
Record Type: CNAME
CNAME Target: global.msads.net.c.footprint.net
IP: 198.78.206.126
Owner: Level 3 Communications, Inc.

Hostname: msnportal.112.2o7.net
Record Type: A
IP: 66.235.139.121
Owner: Omniture, Inc

Hostname: amer.rel.msn.com
Record Type: CNAME
CNAME Target: amer.hops.glbdns.microsoft.com
IP: 64.4.18.73
Owner: MS Hotmail

Hostname: exp.www.msn.com
Record Type: CNAME
CNAME Target: ro-msn.exp.glbdns.microsoft.com
IP: 65.55.18.18
Owner: Microsoft Corp

Hostname: g.msn.com
Record Type: CNAME
CNAME Target: g.msn.com.nsatc.net
IP: 207.46.216.54
Owner: Microsoft Corp

Hostname: analytics.live.com
Record Type: CNAME
CNAME Target: analytics.live.com.nsatc.net
IP: 65.55.149.119
Owner: Microsoft Corp

Hostname: http://www.bing.com
Record Type: CNAME
CNAME Target: search.ms.com.edgesuite.net
IP: 63.110.246.16
Owner: WS/Akamai Technologies/Akamai Technologies UU-63-110-246-D6 (NET-63-110-246-0-1)

Hostname: login.live.com
Record Type: CNAME
CNAME Target: login.live.com.nsatc.net
IP: 65.54.186.47
Owner: Microsoft Corp

Hostname: download.live.com
Record Type: CNAME
CNAME Target: download.live.com.nsatc.net
IP: 65.55.61.125
Owner: Microsoft Corp

Hostname: col.stb.s-msn.com
Record Type: CNAME
CNAME Target: colstb.co1.cb3.glbdns.microsoft.com
IP: 65.54.75.140
Owner: Microsoft Corp

Hostname: http://www.msnbc.msn.com
Record Type: CNAME
CNAME Target: http://www.msnbc.msn.com.edgesuite.net
IP: 63.110.246.17
Owner: WS/Akamai Technologies/Akamai Technologies UU-63-110-246-D6 (NET-63-110-246-0-1)

Hostname: local.msn.com
Record Type: CNAME
CNAME Target: local.blu.cb3.glbdns.microsoft.com
IP: 65.55.206.199
Owner: Microsoft Corp

Hostname: today.msnbc.msn.com
Record Type: CNAME
CNAME Target: msnbc.msn.com
IP: 65.55.53.233
Owner: Microsoft Corp

Hostname: entertainment.msn.com
Record Type: A
IP: 65.55.14.126
Owner: Microsoft Corp

Hostname: wonderwall.msn.com
Record Type: A
IP: 67.201.39.229
Owner: Mzima Networks, Inc. NETBLK-MZIMA-04 (NET-67-201-0-0-1)

Hostname: zone.msn.com
Record Type: A
IP: 207.46.166.10
Owner: Microsoft Corp

Hostname: movies.msn.com
Record Type: CNAME
CNAME Target: entertainment.msn.com
IP: 65.55.14.126
Owner: Microsoft Corp

Hostname: music.msn.com
Record Type: CNAME
CNAME Target: entertainment.msn.com
IP: 65.55.14.126
Owner: Microsoft Corp

Hostname: tv.msn.com
Record Type: CNAME
CNAME Target: entertainment.msn.com
IP: 65.55.14.126
Owner: Microsoft Corp

Hostname: msn.foxsports.com
Record Type: CNAME
CNAME Target: http://www.foxsports.com.edgesuite.net
IP: 63.110.246.11
Owner: WS/Akamai Technologies/Akamai Technologies UU-63-110-246-D6 (NET-63-110-246-0-1)

Hostname: moneycentral.msn.com
Record Type: CNAME
CNAME Target: moneycentral.com
IP: 65.54.150.19
Owner: Microsoft Corp

Hostname: autos.msn.com
Record Type: CNAME
CNAME Target: web.autos.glbdns.microsoft.com
IP: 65.55.182.112
Owner: Microsoft Corp

Hostname: msn.careerbuilder.com
Record Type: CNAME
CNAME Target: http://www.careerbuilder.com
IP: 208.88.80.22
Owner: CareerBuilder, LLC

Hostname: realestate.msn.com
Record Type: CNAME
CNAME Target: lifestyle.blu.cb3.glbdns.microsoft.com
IP: 65.55.206.197
Owner: Microsoft Corp

Hostname: articles.moneycentral.msn.com
Record Type: CNAME
CNAME Target: articles.moneycentral.blu.cb3.glbdns.microsoft.com
IP: 65.55.206.205
Owner: Microsoft Corp

Hostname: lifestyle.msn.com
Record Type: CNAME
CNAME Target: lifestyle.blu.cb3.glbdns.microsoft.com
IP: 65.55.206.197
Owner: Microsoft Corp

Hostname: http://www.delish.com
Record Type: CNAME
CNAME Target: http://www.delish.com.edgesuite.net
IP: 64.211.21.103
Owner: Global Crossing

Hostname: glo.msn.com
Record Type: A
IP: 68.71.242.140
Owner: Zero Lag Communications

Hostname: health.msn.com
Record Type: CNAME
CNAME Target: health.blu.cb3.glbdns.microsoft.com
IP: 65.55.206.198
Owner: Microsoft Corp

Hostname: astrocenter.astrology.msn.com
Record Type: CNAME
CNAME Target: http://www.astrocenter.com
IP: 149.7.36.148
Owner: PSINet, Inc. ASTROCENTER (UK ) Ltd

Hostname: dating.msn.com
Record Type: CNAME
CNAME Target: msn.match.com
IP: 208.83.241.16
Owner: Match.com, L.L.C.

Hostname: specials.msn.com
Record Type: CNAME
CNAME Target: specials.blu.cb3.glbdns.microsoft.com
IP: 65.55.228.106
Owner: Microsoft Corp

Hostname: my.msn.com
Record Type: CNAME
CNAME Target: my.co1.cb3.glbdns.microsoft.com
IP: 65.55.17.32
Owner: Microsoft Corp

Hostname: careers.msn.com
Record Type: CNAME
CNAME Target: us.chan.blu.cb3.glbdns.microsoft.com
IP: 65.55.228.106
Owner: Microsoft Corp

Hostname: msn.whitepages.com
Record Type: CNAME
CNAME Target: http://www.whitepages.com
IP: 64.124.61.10
Owner: Abovenet Communications, Inc ABOVENET (NET-64-124-0-0-1)

Hostname: yellowpages.msn.com
Record Type: A
IP: 65.55.241.167
Owner: Microsoft Corp

Hostname: secure.opinionlab.com
Record Type: A
IP: 66.77.28.111
Owner: Qwest Communications Company, LLC QWEST-INET-12 (NET-66-77-0-0-1)

Hostname: help.live.com
Record Type: A
IP: 65.55.162.252
Owner: Microsoft Corp

Hostname: latino.msn.com
Record Type: CNAME
CNAME Target: latino.co1.cb3.glbdns.microsoft.com
IP: 65.55.17.37
Owner: Microsoft Corp

Hostname: blst.msn.com
Record Type: CNAME
CNAME Target: blst.blu.cb3.glbdns.microsoft.com
IP: 205.128.93.126
Owner: Level 3 Communications, Inc.

Hostname: view.atdmt.com
Record Type: A
IP: 65.55.116.181
Owner: Microsoft Corp

Hostname: http://www.vacationstogo.com
Record Type: CNAME
CNAME Target: vacationstogo.com
IP: 206.222.179.99
Owner: Insync Internet Services

Hostname: http://www.forcefactor.com
Record Type: CNAME
CNAME Target: forcefactor.com
IP: 174.143.32.234
Owner: Rackspace Hosting

Hostname: ad.doubleclick.net
Record Type: CNAME
CNAME Target: dart-ad.l.doubleclick.net
IP: 74.125.19.148
Owner: Google Inc.

Hostname: ccc01.opinionlab.com
Record Type: A
IP: 66.77.28.73
Owner: Qwest Communications Company, LLC QWEST-INET-12 (NET-66-77-0-0-1)

Hostname: http://www.ie8optimized.com
Record Type: A
IP: 174.143.45.130
Owner: Rackspace Hosting RSCP-NET-4 (NET-174-143-0-0-1)

Hostname: go.microsoft.com
Record Type: CNAME
CNAME Target: http://www.go.microsoft.akadns.net
IP: 207.46.16.233
Owner: Microsoft Corp

Hostname: advertising.microsoft.com
Record Type: CNAME
CNAME Target: advertising.microsoft.com.nsatc.net
IP: 65.55.249.222
Owner: Microsoft Corp

Hostname: rss.msn.com
Record Type: CNAME
CNAME Target: rss.blu.cb3.glbdns.microsoft.com
IP: 204.160.102.126
Owner: Level 3 Communications, Inc.

Hostname: careers.microsoft.com
Record Type: CNAME
CNAME Target: careers.microsoft.akadns.net
IP: 65.55.186.234
Owner: Microsoft Corp

]]> Comment on Preparing and delivering content on a Content Delivery Network (CDN). by siva.lanka http://www.rentanencoder.com/archives/283/comment-page-1#comment-98 siva.lanka Mon, 17 May 2010 08:32:34 +0000 http://www.rentanencoder.com/?p=283#comment-98 <a href="#comment-97" rel="nofollow">@Mike </a> I am testing it for MSN.com. I got it some extent here. But can you please clear me what does Level3 mean? (If in the Addresses tag if we could found 3 IP's does it mean that it is level 3 there? and If it doesnt show 3 IP's/(level 3) then all those objects or not in CDN. Is that right? Iam not sure ??) Kindly give a clarification. Thank you, @Mike

I am testing it for MSN.com.
I got it some extent here. But can you please clear me what does Level3 mean?
(If in the Addresses tag if we could found 3 IP’s does it mean that it is level 3 there? and If it doesnt show 3 IP’s/(level 3) then all those objects or not in CDN.
Is that right? Iam not sure ??)

Kindly give a clarification.

Thank you,

]]> Comment on Preparing and delivering content on a Content Delivery Network (CDN). by Mike http://www.rentanencoder.com/archives/283/comment-page-1#comment-97 Mike Fri, 14 May 2010 14:59:16 +0000 http://www.rentanencoder.com/?p=283#comment-97 What is the URL you trying to look at? You would look for anything that says like video.domain.com or static.domain.com something like that. Then go out to a command prompt and type nslookup videos.domain.com. For example. Go to CNN.COM right click on an image, choose properties and you see the URL like this: http://i2.cdn.turner.com/cnn/2010/WORLD/asiapcf/05/14/thailand.anti-government.protests/t1main.thaiprotest2.gi.jpg nslookup i2.cdn.turner.com and that resolves to: Non-authoritative answer: Name: cdn.cnn.com.c.footprint.net Addresses: 204.160.119.126, 8.12.218.126, 199.93.46.126 Aliases: i2.cdn.turner.com Look up footprint.net and it belongs to Level3. Level3 is the CDN for that Image. Finding the CDN for videos might be more difficult as many times the URL is embedded in a SWF or JS. You might need a pack sniffer software to see where the video is loading from and then resolve that URL. What is the URL you trying to look at? You would look for anything that says like video.domain.com or static.domain.com something like that. Then go out to a command prompt and type nslookup videos.domain.com.

For example. Go to CNN.COM right click on an image, choose properties and you see the URL like this:
http://i2.cdn.turner.com/cnn/2010/WORLD/asiapcf/05/14/thailand.anti-government.protests/t1main.thaiprotest2.gi.jpg

nslookup i2.cdn.turner.com and that resolves to:

Non-authoritative answer:
Name: cdn.cnn.com.c.footprint.net
Addresses: 204.160.119.126, 8.12.218.126, 199.93.46.126
Aliases: i2.cdn.turner.com

Look up footprint.net and it belongs to Level3. Level3 is the CDN for that Image.

Finding the CDN for videos might be more difficult as many times the URL is embedded in a SWF or JS. You might need a pack sniffer software to see where the video is loading from and then resolve that URL.

]]> Comment on Preparing and delivering content on a Content Delivery Network (CDN). by siva.lanka http://www.rentanencoder.com/archives/283/comment-page-1#comment-96 siva.lanka Fri, 14 May 2010 07:50:11 +0000 http://www.rentanencoder.com/?p=283#comment-96 <a href="#comment-95" rel="nofollow">@Mike </a> Mike could you pls show me a screenshot (from Firebug) of the CNAMEs and the NS Lookup's for any site of your choice that represents the CDN redirection in it. I would apprecite your help if you could do this. Thanks, Siva. @Mike

Mike could you pls show me a screenshot (from Firebug) of the CNAMEs and the NS Lookup’s for any site of your choice that represents the CDN redirection in it.
I would apprecite your help if you could do this.

Thanks,
Siva.

]]> Comment on Preparing and delivering content on a Content Delivery Network (CDN). by Mike http://www.rentanencoder.com/archives/283/comment-page-1#comment-95 Mike Thu, 13 May 2010 16:47:19 +0000 http://www.rentanencoder.com/?p=283#comment-95 I would use Firebug in Firefox. Look at the CNAMEs that are loading then do a NSLookup on the CNAME and see if it's redirecting to a CDN I would use Firebug in Firefox. Look at the CNAMEs that are loading then do a NSLookup on the CNAME and see if it’s redirecting to a CDN

]]> Comment on Preparing and delivering content on a Content Delivery Network (CDN). by siva.lanka http://www.rentanencoder.com/archives/283/comment-page-1#comment-94 siva.lanka Thu, 13 May 2010 10:57:44 +0000 http://www.rentanencoder.com/?p=283#comment-94 Can you please let me know How I can identify whether a site is CDN enabled or not. ? Is there any tool which can tell me the all the cdn objects with in the site. ? Can you please let me know How I can identify whether a site is CDN enabled or not. ?
Is there any tool which can tell me the all the cdn objects with in the site. ?

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