case study - image optimization · all plugins tested have at least one compressionsetting in their...

THEGREATIMAGEOPTIMIZATIONCASESTUDY

Proudly brought to you by

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-WP Compress-FAST,FREE,UNLIMITED

-Smush-800,000+Downloads

-EWWW IO-500,000+Downloads

ORIGINALFILESIZE 78.9MB

FREEVERSION(SMUSH)

0.5%78.51MB

MAXIMUM(SUPER-SMUSH- $50/MO)

47.5%41.3MB

RESIZE(SUPER-SMUSH+2048px)

91.4%6.75MB

TIMETOCOMPRESS 1min45sec


FREEVERSION(INTELLIGENT)

67.5%41.3MB

MAXIMUM(ULTRA- STILLFREE)

78.9%16.63MB

RESIZE(ULTRA+2048px)

96.1%3.05MB

TIMETOCOMPRESS 25sec


FREEVERSION(LOSSLESS)

2.1%77.19MB

MAXIMUM(MAXLOSSY – PayPerImage)

69.1%24.32MB

RESIZE(MAXLOSSY+2048px)

94.1%4.71MB

TIMETOCOMPRESS 5-15Minutes

Results Summary

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This case study is brought to you by WP Compress, we personally completed all testing and data was recorded by an independent third party. If you have any questions or would like to obtain

additional information about this case study, please contact us via the support center.

The Experiment

ORIGINALFILESIZE Thetotal combinedfilesizeofthe20highresolutioncasestudyimages.(78.9MBacross theboard)

FREEVERSIONAllpluginstestedhaveatleastonecompression settingintheirfree

version.Somepluginsoffermultiple settingsinthefreewhileothersmaybemoreofatrialordemo.

MAXIMUM Wetestedthemaxcompressionoption ofeachplugin,thesewereinthepaidversion,otherthanWPCompresswhereULTRAwasstillfree.

RESIZE(MAXIMUM+RESIZE)

Wedefinedoptimalasamixofqualityandsize.Typicallythiswasnotthemaxversion,butthenextstrongestcompressionlevelwithimageresizing

to2048pxasinallstandardcases,imagesdonotneedtobelarger.

TIMETOCOMPRESS Wetestedthetimeneeded formaxcompressionandresizing.Thiswastypicallyinthepaidversionoftheplugins.

KEYTERMS

The data presented is based on a

collection of 20 images from

Unsplash.com and was tested

with the free & premium versions

of the most downloaded image

optimization plugins.

THEIMAGES

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Case Study Notes

The Findings

LongTimeToCompressTeststook5to15minstocomplete.Alsoreceivedfailureerrorsandhadtorestartmultipletimes.

LimitedFreeVersionFreeversionsavedonly2.1%(1.6MBof78.7MB).Onlyonemodeandlimitedfeatureswithoutupgrading

GetsCostlyQuickCost$.84inAPIcreditstocompressjust20imagesandtheirthumbnails

ExpensiveManyfeaturesareblockedoffuntilyouforkover$50/mo fortheirentirepackage.

GreatUserInterfaceSmushhasanamazinguserinterfaceandstorylinebehindthebrand

LimitedFreeVersionWithoutSuper-Smush,freeoptionssavedonly.5%andwasslower

CoreVersionFreeWPCompresspridesitselfonhavingallnecessaryimageoptimizationfeaturescompletelyfree

UnlimitedCompressionNomaxfilesize,noGB/mo transferlimit,unlimitedimagecompressionandnoAPIusagecharges

QuickBulkOptimizationLessthan30secondstobackup,optimizeandresizeallimages

IMAGIFYExcludedasImagifyislimitedto2MBperimageinfreeversionand25MBtotal– basicallyaglorifieddemo.Theimageswecouldcompressaveraged59.38%savings.

SHORTPIXELCouldnottestorgetproperresultsastheplugincrashedoursitemultipletimes,froze,andevensetusbacktothe“InstallWordPress”selectyourlanguagepage.

KRAKEN.IOInitially,theirserversweredownforoptimizing.Greatuserinterface,,butthefreeversiononlyallowed100MBoftestingsothefullcasestudywasnotabletobecompleted.

WPCompress- PromiseIfyoufindabetterfreealternativetoWPCompress,letusknow.Weprideourselvesinprovidingthemosteasytouse,featurerichandfastestimageoptimizationoutthere,andevenbeatthepaidversionsofotherplugins.

EWWWIOCompressionTime

WPCOMPRESS EWWWIO SMUSH

OtherPlugins

Runningmaxlossy andresizeon20imagesandtheirrespectivethumbnailstook5+minutes.

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Demonstrated on Image 1

Case Study Key

Original Image4272 x 2848

5.41 MB

50.1%

78.6%

81.3%

91.6%

93.5%EWWW(Max Lossy + Resize to

2048px | $ per image)

Smush(Super-Smush + Resize

to 2048px | $50/mo)

WP CompressULTRA (FREE)

EWWWMax Lossy ($ per image)

SmushSuper-Smush($50/mo)

Compression + Resizing

Compression

455.85KB

351.32KB

96.6%WP Compress(ULTRA + Resize to

2048px | FREE)

182.59KB

2.7MB

1.16MB

1.01MB

Bars indicate the % saved after optimizing

These are the plugins tested with their max optimization settings

These are the resulting file sizes

Unless it is a background image, there is typically no need to have images larger than 2048px – the file size savings from compressing

and resizing can be massiveOriginal Image Dimensions and File Size for reference

Bars indicate the % saved after optimizing and resizing to 2048px

ForSmushAndEWWWwetestedthePAIDversiononmaximumcompressionforallimageswhileWPCompresswasFREE

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Image Optimization Case Study

Image 1


5.41 MB

50.1%

78.6%

81.3%

91.6%

93.5%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

455.85KB

351.32KB

96.6%WP Compress(2048px)

182.59KB

2.7MB

1.16MB

1.01MB

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Image 2


3.53 MB

61.8%

90.1%

89.3%

96.0%

97.4%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

141.65KB

92.72KB


68.2KB

1.35MB

350.7KB

377.31KB

8


Image 3


7.2 MB

51.1%

83.5%

83.8%

94.3%

96.8%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

407.09KB

228.61KB


203.23KB

3.23MB

1.19MB

1.17MB

9


Image 4


3.44 MB

44.5%

70.6%

73.1%

84.9%

90.6%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

518.09KB

323.55KB


264.98KB

1.91MB

1.013MB

926.53KB

10


Image 5


4.04 MB

51.7%

77.8%

79.4%

90.4%

93.1%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

388.57KB

277.6KB


184.89KB

1.95MB

895.9KB

833.98KB

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Image 6


7.18 MB

41.4%

60.6%

73.1%

90.5%

92.2%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

679.97KB

560.18KB


291.99KB

4.21MB

2.83MB

1.93MB

12


Image 7


7.52 MB

32.7%

1.2%

74.3%

93.7%

95.2%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

474.46KB

362.63KB


230.13KB

5.06MB

7.43MB

1.93MB

13


Image 8


2.24 MB

31.3%

54.8%

59.8%

84.7%

87.7%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

343.11KB

275.72KB


129.82KB

1.54MB

1.012MB

901.57KB

14


Image 9


836 KB

59.6%

80.0%

86.9%

83.7%

88.8%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

136.64KB

93.3KB


53.11KB

338.13KB

167.3KB

109.87KB

15


Image 10


4.49 MB

43.7%

79.9%

81.1%

92.9%

94.7%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

317.05MB

239.42KB


125.19KB

2.53MB

902.72KB

847.18KB

16


Image 11


3.15 MB

56.2%

83.2%

83.5%

93.3%

95.6%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

211.74KB

139.79KB


102.86KB

1.38MB

528.36KB

518.31KB

17


Image 12


2.58 MB

46.9%

75.2%

77.0%

82.0%

86.3%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

464.51KB

352.96KB


218.47KB

1.37MB

641.03KB

593.01KB

18


Image 13


691 KB

30.1%

52.3%

55.1%

63.1%

75.1%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

254.76KB

172.22KB


127.98KB

483.25KB

330.04KB

310.56KB

19


Image 14


2.67 MB

48.7%

76.4%

78.9%

88.1%

92.2%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

318.87KB

208.42KB


160.11KB

1.37MB

631.16KB

563.64KB

20


Image 15


1.29 MB

46.9%

75.7%

78.3%

94.7%

96.7%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

68.45KB

42.44KB


35.26KB

684.61KB

313.09KB

279.76KB

21


Image 16

51.4%

81.4%

82.6%

97.1%

98.8%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

455.85KB

351.32KB


129.58KB

2.70MB

1.16MB

2.37MB


13.6 MB

22


Image 17


801 KB

43.7%

61.9%

74.2%

43.7%

61.9%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

450.99KB

305.46KB


206.69KB

450.99KB

305.46KB

206.69KB

23


Image 18


3.16 MB

49.4%

75.1%

76.7%

88.5%

92.1%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

362.44KB

248.95KB


184.37KB

1.6MB

785.32KB

735.94KB

24


Image 19


3.65 MB

49.0%

74.6%

78.1%

93.8%

95.3%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

224.89KB

172.25KB


86.18KB

1.86MB

928.54KB

798.79KB

25


Image 20


1.21 MB

42.1%

70.1%

81.4%

88.4%

91.6%EWWW(2048px)

Smush(2048px)

WP Compress

EWWW

Smush


Compression

140.58KB

101.05KB


65.04KB

700.07KB

362.18KB

224.49KB

case study - image optimization · all plugins tested have at least one compressionsetting in their...

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