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Webpagetest & Other Browser data donot match
11-11-2014, 01:01 PM
Post: #1
Webpagetest & Other Browser data donot match
Hi

I Work at Kohls.com and have noticed the following.
------------------
Note01: Testing Kohls.com production website
Note02: Clear Cookies & Cache for the past one day.
-----------------
1) Webpagetest always gives number of requests to be around 180.
2) Chrome and Mozilla browser gives the number of requests to be around 240-300
3) We have two questions
a) Why is webpagetest requests so low consistently. (we are assuming that underneath you are using the same browsers)
b) Why is the number of requests constantly changing for the same website for the same day.

Thanks
Sunil Allapureddy
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11-12-2014, 07:13 AM
Post: #2
RE: Webpagetest & Other Browser data donot match
Do you have a link to a test result? Sometimes Chrome and Firefox will show resources served from cache as well as Data URI's as requests but WPT only includes traffic that actually hits the network.

Presumably the number of requests change because there is some content on the page that is dynamic (in the case of kohls.com's main page it looks like there is an adsense ad near the bottom for example which will be different every time).
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11-12-2014, 11:16 AM
Post: #3
RE: Webpagetest & Other Browser data donot match
Hi
Thanks for the response

pmeenan) Sometimes Chrome and Firefox will show resources served from cache as well as Data URI's
Sunil) We are hitting kohls.com using mozilla or chrome browser after clearing the Cache & Cookies which can be accessed from History menu.
sunil) Our assumption is that underneath webpagetest, you are using Mozilla and chrome, so why are our requests consistently higher than webpagetest.
pmeenan) in the case of kohls.com's main page it looks like there is an adsense ad near the bottom for example which will be different every time
sunil) This makes sesne, it still does not explain why sometimes we see a difference of 50 or more requests when compared to webpagetest, Does webpagetest not use adsense on kohls.com make to make requests.
pmeenan) Do you have a link to a test result
sunil) We can send you a Har file, is that acceptable.
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11-14-2014, 05:29 AM
Post: #4
RE: Webpagetest & Other Browser data donot match
(11-12-2014 11:16 AM)allred.sun@gmail.com Wrote:  Hi
Thanks for the response

pmeenan) Sometimes Chrome and Firefox will show resources served from cache as well as Data URI's
Sunil) We are hitting kohls.com using mozilla or chrome browser after clearing the Cache & Cookies which can be accessed from History menu.

Right, but depending on where you are looking for the information on the requests, it might be including things that do not actually hit the network (data URIs in particular).

Have you looked through to see what actual requests you are seeing that are not showing up on WebPagetest?

Quote:sunil) Our assumption is that underneath webpagetest, you are using Mozilla and chrome, so why are our requests consistently higher than webpagetest.
pmeenan) in the case of kohls.com's main page it looks like there is an adsense ad near the bottom for example which will be different every time
sunil) This makes sesne, it still does not explain why sometimes we see a difference of 50 or more requests when compared to webpagetest, Does webpagetest not use adsense on kohls.com make to make requests.

Sure, I was just explaining how the numbers can vary from one run to another and why they will not always be the same.

Quote:pmeenan) Do you have a link to a test result
sunil) We can send you a Har file, is that acceptable.

HAR file from the desktop browser or WebPagetest? Both need to be compared to each other to see what the requests are that are different.
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11-14-2014, 08:34 AM
Post: #5
RE: Webpagetest & Other Browser data donot match

.xlsx  WebPageTest_Nov-13-2014.xlsx (Size: 82.79 KB / Downloads: 91)    
(11-14-2014 05:29 AM)pmeenan Wrote:  
(11-12-2014 11:16 AM)allred.sun@gmail.com Wrote:  Hi
Thanks for the response

pmeenan) Sometimes Chrome and Firefox will show resources served from cache as well as Data URI's
Sunil) We are hitting kohls.com using mozilla or chrome browser after clearing the Cache & Cookies which can be accessed from History menu.

Right, but depending on where you are looking for the information on the requests, it might be including things that do not actually hit the network (data URIs in particular).

Have you looked through to see what actual requests you are seeing that are not showing up on WebPagetest?

Quote:sunil) Our assumption is that underneath webpagetest, you are using Mozilla and chrome, so why are our requests consistently higher than webpagetest.
pmeenan) in the case of kohls.com's main page it looks like there is an adsense ad near the bottom for example which will be different every time
sunil) This makes sesne, it still does not explain why sometimes we see a difference of 50 or more requests when compared to webpagetest, Does webpagetest not use adsense on kohls.com make to make requests.

Sure, I was just explaining how the numbers can vary from one run to another and why they will not always be the same.

Quote:pmeenan) Do you have a link to a test result
sunil) We can send you a Har file, is that acceptable.

HAR file from the desktop browser or WebPagetest? Both need to be compared to each other to see what the requests are that are different.
--------------------------------------------------------
Sunil: Comparing Har files which are turned into Excel sheets is in progress.
but here is a quick observation.
1) Webpagetests tells that there were 162Req (onLoad) & 192Req (pageLoad)
2) When we download the Excel sheet via the "RawObjectData" Link the number of lines is 265. We are assuming that these lines correspond to the number of requests. Can you please look into this. An attachment is provided for the Excel and a screenshot of the test.
3) Run on Nov-13-2014 using Webpagetest.
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11-15-2014, 02:01 AM
Post: #6
RE: Webpagetest & Other Browser data donot match
The Raw Object Data includes both first and repeat view runs. There was a bug where I wasn't including a column to indicate if the requests were from the cached run or not so I just fixed that.
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11-15-2014, 02:02 AM
Post: #7
RE: Webpagetest & Other Browser data donot match
BTW, the URL from the test result is permanent. You can just share the URL rather than screen shots.
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11-15-2014, 10:23 AM
Post: #8
RE: Webpagetest & Other Browser data donot match
(11-15-2014 02:01 AM)pmeenan Wrote:  The Raw Object Data includes both first and repeat view runs. There was a bug where I wasn't including a column to indicate if the requests were from the cached run or not so I just fixed that.

--------------------------------------------------------
Sunil:
Hi Patrick We have checked the Excel download from webpagetest. You have added an extra column called Cached with 0 & 1. We think it would be less confusing to have column name as RUN and its values as First or Repeat.
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11-18-2014, 06:13 AM
Post: #9
RE: Webpagetest & Other Browser data donot match
There is already a column name called Run for the run # in a multi-run test.
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