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[译]Chrome网上应用店扩展的探索性分析

自8年前启动Chrome Web Store以来,可供用户安装的扩展程序数量已增加到约18.8万,目前的安装数量已超过10亿。尽管网上商店与其他发行平台(如Google Play(270万个应用程序)和Apple App Store(约200万个))相比显得相形见,,但Chrome扩展程序具有特权访问特定的敏感环境,即用户的浏览器。多年来,众所周知的安全挑战是我们启动Extension Monitor的原因。在本文中,我们探讨了Chrome网上应用店的一些指标。

使用者

根据我们的最新统计,Chrome扩展程序的数量为188,620,而安装的下限为1,230,081,087(1.2B)。

总安装次数可能会更高,但我们只能得出一个下限,因为Google不会报告拥有超过1000万用户的扩展程序的完整用户数。该荣誉仅在下面13个扩展中

name installs
Cisco Webex Extension 10m+
Google Translate 10m+
Avast Online Security 10m+
Adobe Acrobat 10m+
Grammarly for Chrome 10m+
Adblock Plus - free ad blocker 10m+
Pinterest Save Button 10m+
Skype 10m+
AdBlock 10m+
Avast SafePrice 10m+
uBlock Origin 10m+
Honey 10m+
Tampermonkey 10m+

如果我们看下一层扩展,即安装量少于1000万的扩展,我们可以了解最受欢迎的扩展:广告拦截器,通信,优惠券/购物,安全性,密码管理器等…

name installs
Google Photos 9,288,594
LastPass: Free Password Manager 9,173,056
Text 9,043,745
Avira Browser Safety 8,782,312
Rung Rinh: Free Cash Back Shopp... 8,538,120
[AVG SafePrice \ Comparison, de...](https://chrome.google.com/web... 8,363,869
Video Downloader for Chrome 8,281,833
Google Hangouts 7,711,927
Hola Free VPN Proxy Unblocker 7,533,902
Amazon Assistant for Chrome 6,805,387

在另一个极端,我们发现19,379个扩展名带有0 installs。这只是所有扩展的10%以上。25,540个用户中有一个(另外13.5%)。50%的安装次数少于16次

我们看了一个直方图,以了解扩展在安装次数上的频率分布。数据向右偏斜很大,也就是说,大多数扩展安装的相对较少,因此将其分解为四个直方图最为有用。

约有87%的扩展程序的安装次数少于1000

以下直方图显示了安装数量少于1k的扩展的计数,但安装数量少于10的扩展的数量除外。

img

在低端,此直方图显示了扩展数量少于1000k的用户(1000个用户)。在75k标记附近有一个奇怪的峰值,我们尚未调查。

img

在中间范围内,以下直方图显示了由10,000个用户存储的10万至100万用户之间的扩展。

img

而且,在高端,直方图显示了拥有100,000个用户的1m至10m用户扩展。

img

付费与免费

Chrome网上应用店支持两种类型的付费扩展,即应用内购买和店内购买。他们只占扩展的8.9%,

img

且不到安装次数的2.6%(这超出了我们的估计,因为我们的1.2B总安装次数只是一个下限)

img

16,718个付费扩展中的5,885个(〜35%)根本没有任何用户。

付费最高的扩展名为IE Tab,安装量为410万,约占所有付费扩展安装量的31.5%。前5名付费安装量的48.5%

name payment type installs
IE Tab in_app 4,177,911
Lucidchart Diagrams in_app 615,789
anonymoX in_app 613,183
Gantter Project Management in_app 448,481
Polarr Photo Editor in_app 441,189

这些前5个扩展都是应用程序内购买扩展。第六名是第一个店内付费扩展,Open SEO Stats(以前为:PageRank Status)安装424,549,目前每月收费$ 3.99 /月。

语言

Chrome网上应用店提供55种语言的版本。这是每种扩展可用数量的细分,但需要注意的是,单个扩展可以用多种语言发布。

img

分类目录

Chrome网上应用店有84个类别。快速浏览一下,最受欢迎的类别是“生产力”,占大约40,000扩展名和676M安装次数

让我们细分每个类别中扩展的数量,不包括未分类的〜18k。

category # of extensions
productivity 39,765
fun 24,773
photos 21,742
web_development 12,252
communication 11,953
accessibility 9,716
search_tools 8,319
shopping 6,313
games 4,749
news 3,308
education 3,146
business_tools 2,695
blogging 1,913
arcade_action 1,882
sports 1,843
lifestyle 1,717
entertainment 1,492
utilities 1,363
academic_resources 1,149
office_applications 1,133
puzzle_brain 1,048
arcade_games 1,033
action_and_adventure_games 849
puzzle_games 738
teacher_and_admin_tools 668
creative_tools 632
marketing_and_analytics 571
teacher_tools 524
accounting_and_finance 507
music_and_radio 502
board_card 485
news_reporting 425
food_and_health 411
role_playing_strategy 408
music 384
sales_and_crm 357
administration_and_management 311
educational_games 310
task_management 299
travel 294
health_fitness 287
search_and_browsing_tools 270
board_games 246
foreign_languages 246
social_networks 242
sports_game 241
strategy_games 241
card_games 239
online_documents_and_file_storage 224
blogs 223
calculators 177
online_videos 172
tv_movies 169
role_playing_games 167
test_preparation 163
family 156
virtual_worlds 156
school_administration 144
chat_and_im 142
hr_and_legal 140
calendar_and_scheduling 139
money 129
food 124
books 119
radio 118
by_artists 118
religion 117
alarms_and_clocks 116
design_essentials 106
erp_and_logistics 103
notepads 99
news_aggregators 91
phone_and_sms 89
email_and_contacts 82
bookmarks 72
dictionaries 66
newspapers 61
weather_forecasts 54
magazines 50
fashion 48
social_news 44
astrology 42
dating 33
by_google 26

通过按安装来查看类别,我们发现生产力是下一个最大类别的5倍。

category installs
productivity 676,147,676
communication 111,671,905
photos 109,103,337
fun 105,043,823
web_development 96,030,111
education 92,387,979
accessibility 83,818,353
shopping 82,272,965
entertainment 62,567,535
search_tools 56,028,934
office_applications 43,787,834
teacher_and_admin_tools 37,722,599
teacher_tools 37,253,849
games 31,956,052
academic_resources 29,329,452
utilities 18,612,225
creative_tools 16,075,901
music_and_radio 15,835,473
music 15,405,296
news 11,800,107
puzzle_brain 11,106,842
online_videos 10,683,185
arcade_action 9,458,576
puzzle_games 8,831,266
sports 8,011,173
books 7,075,610
business_tools 6,044,918
arcade_games 5,187,204
foreign_languages 4,443,957
action_and_adventure_games 4,271,372
role_playing_strategy 3,477,493
accounting_and_finance 3,399,186
board_card 3,329,450
lifestyle 3,166,890
tv_movies 3,121,885
search_and_browsing_tools 2,863,272
family 2,823,010
task_management 2,812,489
by_artists 2,799,974
calculators 2,630,775
news_reporting 2,452,372
chat_and_im 2,427,633
social_networks 2,398,029
educational_games 2,275,576
sports_game 2,257,231
blogging 2,254,597
news_aggregators 2,247,684
online_documents_and_file_storage 2,224,125
strategy_games 2,031,811
card_games 1,927,321
notepads 1,917,882
weather_forecasts 1,658,244
role_playing_games 1,445,682
board_games 1,402,129
alarms_and_clocks 1,284,219
design_essentials 1,158,893
virtual_worlds 1,061,502
by_google 934,725
email_and_contacts 887,331
money 816,862
food_and_health 667,544
phone_and_sms 614,531
health_fitness 586,593
bookmarks 529,347
calendar_and_scheduling 525,551
marketing_and_analytics 516,461
dictionaries 501,876
school_administration 468,750
radio 430,177
travel 412,941
sales_and_crm 378,473
religion 349,069
test_preparation 345,080
hr_and_legal 163,105
newspapers 122,894
administration_and_management 119,053
food 80,951
erp_and_logistics 75,896
blogs 66,189
astrology 44,267
social_news 41,701
dating 31,096
magazines 15,605
fashion 3,155

使用率在这里起着举足轻重的作用,大多数安装都归因于每个类别中最受欢迎的扩展。下表显示了每个类别中最受欢迎的扩展。其中一些类别的获胜者领导多个类别,而另一些则显得并列,这仅是因为Chrome网上应用店不会报告任何给定扩展程序的安装次数超过1000万次。 WeVideo在“ online_video”类别中占据了约60%的安装量,而Movistar +在“ fun”类别中仅占1.8%的份额。

category extension installs
productivity AdBlock 10M+
productivity Adblock Plus - free ad blocker 10M+
productivity Adobe Acrobat 10M+
productivity G Suite Training 10M+
productivity Google Translate 10M+
productivity Grammarly for Chrome 10M+
productivity LastPass: Free Password Manager 10M+
productivity Pinterest Save button 10M+
productivity Tampermonkey 10M+
productivity uBlock Origin 10M+
productivity, web_development Text 10M+
shopping Avast SafePrice 10M+
shopping Honey 10M+
entertainment, photos Google Photos 10M+
accessibility Read&Write for Google Chrome™ 10M+
communication Cisco Webex Extension 10M+
communication Skype 10M+
education, teacher_tools, teacher_and_admin_tools Google Classroom 10M+
online_videos WeVideo - Video Editor and Maker 6,365,591
office_applications Google Drawings 6,037,852
search_tools Search Encrypt 4,368,672
music, music_and_radio Google Play 4,358,041
books Kindle Cloud Reader 3,908,443
academic_resources Desmos Graphing Calculator 3,806,791
utilities ScanQR 2,563,113
foreign_languages Duolingo on the Web 2,416,798
puzzle_brain, puzzle_games, games Entanglement Web App 2,276,047
fun Player para ver Movistar+ 1,920,870
creative_tools MindMeister 1,674,734
family DOGOnews 1,383,257
social_networks TweetDeck by Twitter 1,381,555
accounting_and_finance, business_tools Click&Clean App 1,323,158
tv_movies TV 1,312,229
search_and_browsing_tools mydlink services plugin 1,093,352
news, news_reporting, news_aggregators Google News 917,371
notepads Sticky Notes 863,619
weather_forecasts Full Screen Weather 773,916
blogging Google Voice (by Google) 701,640
calculators Calculator 689,957
card_games, board_card Solitaire 618,533
design_essentials Chrome Apps & Extensions Developer Tool 609,556
arcade_action, arcade_games Canvas Rider 585,230
chat_and_im WhatsChrome 555,504
educational_games Typing Test - KeyHero 550,270
task_management Wunderlist - To-do and Task list 524,525
money, lifestyle Google Finance 493,632
action_and_adventure_games Free Rider HD 472,382
alarms_and_clocks Timer 436,182
role_playing_games, role_playing_strategy グランブルーファンタジー[ChromeApps版] 397,469
sports_game WGT Golf Challenge 360,595
strategy_games Command & Conquer Tiberium Alliances 358,288
sports Baseball Wallpaper HD - MLB New Tab 301,355
by_artists Cath Kidston 280,015
phone_and_sms mysms - SMS from Computer 265,928
online_documents_and_file_storage Network File Share for Chrome OS 263,209
email_and_contacts Google Groups 231,937
dictionaries Dictionary 209,591
board_games Dominoes 186,887
religion Bible 185,440
school_administration My Study Life 180,459
virtual_worlds Stardoll 177,921
by_google Brushed 174,083
calendar_and_scheduling Calendar Clock 165,428
food_and_health, health_fitness Personal Trainer 138,420
bookmarks New Tab Page by Speed Dial Team 127,151
marketing_and_analytics vidIQ for Chrome 108,316
travel Booking.com 96,992
test_preparation ProConnect 76,072
hr_and_legal Resume (CV) Maker 75,405
radio Mixcloud 66,962
newspapers USA TODAY 66,033
sales_and_crm Zoho CRM 63,065
administration_and_management TeamGantt Project Management 48,552
erp_and_logistics W2MO: Logistics Design, Optimization, 3D 37,462
food Simply Recipes 28,735
astrology What do your dreams mean 17,808
dating Sender.Services 15,090
blogs Roblox News 12,982
social_news reddit 10,057
magazines DER SPIEGEL 4,360
fashion NEW 2014 Virtual Hairstyle Gallery 1,854

作者

在大约190k扩展中,我们发现某些扩展作者比其他作者多产。Google自己编写了155个扩展程序,占安装量约1.33亿。Google前十大扩展程序是:

name installs
Google Photos 10M+
G Suite Training 10M+
Google Translate 10M+
Google Classroom 10M+
Share to Classroom 8,893,309
Google Hangouts 8,543,463
Google Keep Chrome Extension 7,691,324
Legacy Browser Support 6,690,616
Google Drawings 6,037,852
Save to Google Drive 5,330,714

但是,Google并不是扩展程序最多产的作者。Chrome HD主题已经发布了6,000多个扩展程序。前5位最丰富的扩展程序作者似乎是主题/壁纸发行商。

name # of extensions
Chrome HD Themes 6,128
Lovely Tab 1,343
Takato Knights 1,181
NEWTAB WALLPAPERS THEMES 1,006
NIFTY NEW TAB 979

最后,通过对安装量最多的作者进行调查,我们发现FreeAddon已在618个已发布扩展中累积了约7200万次安装

等级

用户可以给Chrome扩展程序评分1到5星。70,547个分机的评级为0,表示它们尚未评级。2,663个扩展名的最低评分为1,而41,141(〜21%)个扩展名的评分为5

img

未分级的扩展程序的安装量为〜1800万,而具有完美分级的扩展程序的安装量为〜58M。最后,总扩展安装总数的约55%*用于评级在4到5星之间的扩展。

img

*我们只能得出下限的总扩展安装基础1,561,796,203(1.56B),因为Google并未报告安装数量超过1000万的扩展的准确数字。截至19/12/9为止,已有19个此类扩展名。

名字

只是为了好玩,让我们看一下扩展名背后的一些指标。11个字符的名称最受欢迎,并且在45个字符(字符数限制)之后会急剧下降。

并非所有扩展名都遵守45个字符的限制。在514个似乎不受此扩展的扩展中,大多数都是Google Docs,表格,表格等的附件。因此,Google似乎在其名称中添加了“-Google Docs附件”。但是,其他人似乎通过使用破折号,竖线,逗号或其他特殊字符来避开45个字符的限制

img

例如:

name # characters
[Dark theme for VK.COM \ Night Mode for Vkontakte™](https://chrome.google.com/web... 49
sVPN - Simple VPN to unlock internet with our proxy 51
Thunder,QQDownload,FlashGet Files Downloader Pro 48
Word card: word translation / collection / back word 52

有20,408个扩展名与另一个扩展名共享一个名称。亮点包括22个扩展名为Hello World,另外21个扩展名为Hello World !, 18个扩展名为2048,以及29个扩展名为New Tab。不过,这是前三名:

name # of extensions
ThemeBeta.com 137
Reptile 79
Screen Capturing 77

Screen Capturing?是的,同一作者Atavi.com发布了79个名为Reptile的扩展,每个扩展都是具有不同背景图片的浏览器主题。总安装基数为721,其中374个用户青睐此背景

“截屏”是一个不同的故事,各种各样的作者都以相同的名字出版。总安装基数为45,300,其中最高扩展几乎构成了所有这些安装(44,542次安装)。

我们将扩展名分解为词素,以探索最常用的词素以及某些我们发现有趣的术语的普遍性。前5个最受欢迎的词素似乎都与主题Chrome有关。他们是:

lexeme # of extensions
new 25,137
tab 23,703
wallpapers 19,628
hd 19,367
theme 18,391

此外,我们发现1,586个扩展名中每个前5个词素都包括在内。它们表示总安装基数为1,767,944。

对于威胁情报,我们有兴趣探索许多相关词素的详细信息。其中一些列在这里:

lexeme # of extensions installs
vpn 132 32,611,139
adblock 68 28,526,932+
password 290 23,155,172+
search 2,361 22,847,412
security 92 20,277,902+
ublock 8 12,311,322+
tracking 154 2,809,981
roblox 106 2,555,684
bitcoin 177 562,471
cookies 66 521,332
cryptocurrency 49 24,621

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