Page Weight Testing
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ABCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAE
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page- Firefox
WebPagetest
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Page
weight.js
Chrome
mobiReady
Inspector
Firebug
Dev Tools
Safari
(Chrome)
sitetest.io
IE 11.0.9879.0
MINMAX
MAX / MIN
NotesWPT test URL
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plain.html0.80.81.00.70.40.70.72.01.81.00.42.04.8
Response headers=313 bytes
http://www.webpagetest.org/result/150403_FV_PM1/
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plain_with_10_icons.html9.39.39.08.56.07.06.796.07.99.96.096.016.0
http://www.webpagetest.org/result/150403_ZY_Q1Y/
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plain_with_10_icons_iframe.html
11.711.710.017.112.113.013.496.09.319.99.396.010.3
http://www.webpagetest.org/result/150403_TK_QN9/
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plain_with_ajax_load.html464.3464.0464.0619.1463.62.0927.6466.03.3305.52.0927.6463.8
http://www.webpagetest.org/result/150403_PE_SG4/
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plain_with_iframe_plane.html1.61.62.01.50.92.01.53.02.62.10.93.03.4
http://www.webpagetest.org/result/150403_PW_SHR/
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plain_with_jpeg.html49.949.950.065.849.23.049.551.051.850.13.065.821.9
http://www.webpagetest.org/result/150403_7Y_SJH/
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plain_with_png.html463.8464.0464.0617.7463.25.0463.5465.0475.7464.05.0617.7123.5
http://www.webpagetest.org/result/150403_F9_SKG/
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plain_with_sharing_addthis.html236.0236.0236.0985.9324.2989.0988.2242.0259.5985.3236.0989.04.2
http://www.webpagetest.org/result/150403_6M_SN3/
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plain_with_sharing_sharethis.html
91.792.5102.0340.887.291.0337.699.0149.7348.787.2340.83.9
http://www.webpagetest.org/result/150403_QE_SNW/
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plainhtml_big.html1.91.92.03.91.54.03.93.05.13.61.55.13.4
http://www.webpagetest.org/result/150403_4R_SPP/
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plainhtml_with_analytics.html16.916.917.040.816.210.040.818.042.841.310.042.84.3
http://www.webpagetest.org/result/150403_WC_SQB/
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plainhtml_with_youtube.html464.2480.0479.0770.6402.9198.01330.0504.01333.5817.5198.01333.56.7
http://www.webpagetest.org/result/150403_9V_SQY/
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redirect_step1.html3.54.33.09.73.68.09.86.011.110.93.011.13.7
Diff between page-weight.js and Chrome is that Chrome includes all headers along the way
http://www.webpagetest.org/result/150403_J5_SRQ/
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51.5
<-- average ratio between max & min
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Sizes in KB (1 KB = 1024 bytes)
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Undercount
of weight
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Overcount
of weight
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Chrome is reference weight because it always gets it right
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For each test tool, the whiter the column the better
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Notes
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Safari
Lists payload size, uncompressed, doesn't include response headers
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Chrome
Lists over-the-air size of assets + response headers
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Firefox
Lists payload size, uncompressed, doesn't include response headers
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Internet Explorer
Lists payload size, uncompressed, includes response headers
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Firefox (Firebug)
Seems to list over-the-air size of payload, without response headers
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Firefox (Web Developer Tools)
Lists payload size, uncompressed, doesn't include response headers
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WebPageTest
Lists payload size, uncompressed, doesn't include response headers but adds favicon.ico (1456 bytes)
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sitetest.io
Lists payload size, uncompressed, doesn't include response headers but adds favicon.ico (1456 bytes)
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page-weight.js is a tool we wrote for testing purposes
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Chrome and Chrome Canary produced identical results and hence are not listed separately
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Firefox and Firefox Developer Edition produced identical resuls and hence are not listed separately
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Test data can be found at https://github.com/ronancremin/webpage-size-tests
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Tests
Notes