IP address of test location

Support
1

[Couldn’t seem to find a better location for this subject…]

Is there a list of the IP addresses of the test locations? Or can I trust that the first (public) IP address listed on a tracert from a test location is the IP address of the test location?

I have searched the forums and the wiki without any luck.

I need this because I submitted a support case with a CDN vendor on a case where content was not fetched from the nearest CDN PO (Singapore) even though I was testing from the Singapore test location.

Thanks in advance,
Kenneth

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2

You can get the IP address of each of the test machines from here: http://www.webpagetest.org/getTesters.php

If it helps, the Singapore location is running in Amazon’s EC2 cloud and I have seen CDN’s have problems with that before.

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Thanks Patrick, I appreciate the quick reply!

/Kenneth

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Ive seen this in Asia very often.

When testing CDNs from both Amazon EC2 (singapore) and various ISPs in Thailand, many CDNs fluctuate between Asian POPs. Usually I get Singapore, Hongkong or Japanese POPs. – Even Amazon cloudfront occasionally gets it wrong when testing from singapore EC2 which is probably a few racks away…

Probably they are load balancing or something.

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I would like to open the port for WebPageTest for our internal QA boxes. Looking at this page http://www.webpagetest.org/getTesters.php I am able to see some IP addresses, but some of them are using private addresses like 192.168.

So how do I know public IP addresses of test server for certain locations?

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The Dulles test agents should be the only ones listing 192.168.x.x (they talk to the server through an intranet). They will all egress from 72.66.115.14

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I have whitelisted 72.66.115.14 in order to run Dulles test agent (iPhone6) testing, however I’m getting no data back. Is 72.66.115.14 still correct?

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Yep, still accurate. Try with the desktop browsers first because those are a lot more stable and should give you something back (even if it is a page load error). Android is the next most reliable and iOS is by far the least.

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All good with desktop browsers (chrome, IE11), the IP is whitelisted and I can get results back without entering auth info
No joy with android or iOS unfort, the screenshots still indicate that the authentication prompt is still firing on devices.

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Are you using a script to manipulate the requests in some way (adding cookies for example)? Most script features don’t work on the mobile devices which is the only thing that comes to mind.

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no scripts at the moment, just hitting the homepage directly

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One trick I use to get the IP address of an agent is to make a request for http://whatismyip.akamai.com/ and look at the screen capture. This will show the IP of the agent as seen on the internet. You could then use this for white-listing purposes.

eg: here’s the test run from a Nexus browser in Dulles:
https://www.webpagetest.org/result/160906_06_90045cdb7d9e264bf33a531f438c5ab8/

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thats a great idea! i will do this, many thanks!