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$27.04 $14.37
$22.50
$17.50
$12.50
Jan 14
Jan 22
Jan 30
Feb 7
Feb 15
Feb 23
Mar 2
Mar 11
Mar 19
Mar 27
Apr 4 2016
$27.04, Jan 14 - Jan 22 $16.51, Jan 14 - Jan 17 $14.47, Jan 14 6:29 pm $27.04, Jan 14 - Jan 22 $16.51, Jan 14 - Jan 17 $14.37, Jan 17 6:44 am $27.04, Jan 14 - Jan 22 $15.85, Jan 22 7:09 am $15.17, Jan 22 7:09 am $26.76, Jan 27 9:32 am $15.51, Jan 27 9:32 am $14.50, Jan 27 9:32 am $26.49, Feb 1 - Feb 6 $15.33, Feb 1 8:43 am $14.37, Feb 1 - Feb 22 $26.49, Feb 1 - Feb 6 $14.86, Feb 6 11:41 am $14.37, Feb 1 - Feb 22 $26.22, Feb 11 2:19 pm $14.80, Feb 11 2:19 pm $14.37, Feb 1 - Feb 22 $25.95, Feb 16 11:33 pm $14.65, Feb 16 11:33 pm $14.37, Feb 1 - Feb 22 $25.68, Feb 22 - Feb 25 $14.41, Feb 22 12:14 pm $14.37, Feb 1 - Feb 22 $25.68, Feb 22 - Feb 25 $16.43, Feb 25 7:47 am $16.33, Feb 25 7:47 am $25.42, Mar 6 6:49 am $15.38, Mar 6 6:49 am $15.27, Mar 6 6:49 am $25.16, Mar 17 6:07 pm $15.35, Mar 17 6:07 pm $14.89, Mar 17 6:07 pm $24.90, Mar 29 - Apr 4 $14.60, Mar 29 7:09 am $14.43, Mar 29 7:09 am $24.90, Mar 29 - Apr 4 $15.03, Apr 4 3:33 am $14.58, Apr 4 3:33 am 110,124 1,315,266
1,562,500
1,171,875
781,250
390,625
0
Jan 14
Jan 22
Jan 30
Feb 7
Feb 15
Feb 23
Mar 2
Mar 11
Mar 19
Mar 27
Apr 4 2016
Price Details
New
Latest
$24.90 1 day ago
Highest
$27.04 Jan 14, '16
Lowest
$24.90 Mar 29, '16
Average
$25.21 (30d avg)
Added
Jan 14, 2016
3rd Party New
Latest
$15.03 1 day ago
Highest
$16.51 Jan 14, '16
Lowest
$14.41 Feb 22, '16
Average
$15.21 (30d avg)
Added
Jan 14, 2016
3rd Party Used
Latest
$14.58 1 day ago
Highest
$16.43 Feb 25, '16
Lowest
$14.37 Feb 1, '16
Average
$14.95 (30d avg)
Added
Jan 14, 2016
Sales Rank
30 day average: 515,985
Product Description
Learn basic and advanced uses of WebPagetest, the performance measurement tool for optimizing websites. This practical guide shows users new to this tool how run tests and interpret results, and helps experienced users gain a better and more thorough understanding of hidden features in WebPagetest that make testing easier.Written by WebPagetest power users and performance experts, this book will help web developers and frontend engineers solve the problem of slow sites. Topics include:
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