Analyze Chatwork - 中小企業向けビジネスチャット 国内利用者数No.1

Chatwork(チャットワーク)はメール、電話、会議・訪問など仕事で必要なコミュニケーションをより効率的にする国内利用者数No.1 の中小企業向けビジネスチャットです。社内外のコミュニケーション活性化や業務効率化を実現します。導入企業は30万社をこえ、ICTを活用したワークスタイルの変革や業務プロセスの革新をサポートします。 Nielsen NetView 及びNielsen Mobile Ne...

Page load speed analysis

  • 46/100

    Normal result
  • 4

    Successful tests
  • 4

    Failed tests
  • First response

    649 ms

  • Resources loaded

    5 sec

  • Page rendered

    975 ms

  • Total page load time

    6.6 sec

Click here to check amazing Ecstudio content for Japan. Otherwise, check out these important facts you probably never knew about

We analyzed page load time and found that the first response time was 649 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Page optimization

  • HTML 42.1 kB
    Images 2.7 MB
    Javascripts 84.9 kB
    CSS 41.9 kB

    In fact, the total size of main page is 2.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

    • Original 42.1 kB
    • After minification 39.5 kB
    • After compression 11.0 kB

    HTML optimization

    HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 31.1 kB or 74% of the original size.

    • Original 2.7 MB
    • After optimization 2.3 MB

    Image optimization

    Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Ecstudio needs image optimization as it can save up to 409.4 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 84.9 kB
    • After minification 81.9 kB
    • After compression 30.5 kB

    JavaScript optimization

    It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 54.4 kB or 64% of the original size.

    • Original 41.9 kB
    • After minification 33.2 kB
    • After compression 7.1 kB

    CSS optimization

    CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. needs all CSS files to be minified and compressed as it can save up to 34.8 kB or 83% of the original size.

Network requests diagram

  • ecstudio_new.css
  • jquery.min.js
  • ECF.js
  • jquery.easingscroll.min.js
  • modernizr-1.5.min.js
  • config.js
  • dc.js
  • bg_cloud.png
  • logo.png
  • scroll.png
  • bg_news.png
  • img_header_chatworkinc.jpg
  • img_web_chatwork.png
  • ico_facebook_chatwork_siliconvalley.jpg
  • btn_index_prev.png
  • img_index_ecstudio.jpg
  • img_index_staff.jpg
  • img_index_service.jpg
  • img_index_itkeiei.jpg
  • btn_index_next.png
  • ico_anchor.png
  • img_news_ad_book2.png
  • obj_seagull.png
  • img_cloud_front.png
  • img_cloud_back.png
  • bg_blog.png
  • img_workstyle_cnn.jpg
  • img_workstyle_bizspo.jpg
  • img_workstyle_wbs.jpg
  • img_workstyle_ohayoukansai.jpg
  • img_workstyle_gigazine.jpg
  • img_workstyle_book2.png
  • btn_itkeiei.png
  • img_workstyle_study.png
  • img_workstyle_lecture.png
  • obj_hotballoon.png
  • bg_service.png
  • img_service_logo_chatwork.png
  • bg_birds.png
  • obj_bigbird.png
  • __utm.gif
  • btn_company_feature_chatwork.png
  • btn_company_feature_paperless.png
  • btn_company_feature_motivation.png
  • btn_company_feature_iphone.png
  • btn_company_feature_ps3.png
  • btn_company_feature_twitter.png
  • btn_ecstudio_vision.png
  • btn_ecstudio_14.png
  • btn_ecstudio_promise.png
  • btn_ecstudio_tokyo.png
  • btn_ecstudio_osaka.png
  • img_airship.png
  • img_history_label_2011.png
  • img_history_thumbnail_20110301.jpg
  • img_history_thumbnail_20110118.jpg
  • img_history_label_2010.png
  • img_history_thumbnail_20101217.jpg
  • img_history_thumbnail_20101202.jpg
  • img_history_thumbnail_20100721.jpg
  • img_history_thumbnail_20100715.jpg
  • img_history_thumbnail_20100630.jpg
  • img_history_thumbnail_20100614.jpg
  • img_history_thumbnail_20100512.jpg
  • img_history_thumbnail_20100309.jpg
  • img_history_thumbnail_20100223.jpg
  • img_history_thumbnail_20100208.jpg
  • img_history_label_2009.png
  • img_history_thumbnail_20090915.jpg
  • img_history_thumbnail_20090715.jpg
  • img_history_thumbnail_20090513.jpg
  • img_history_thumbnail_20090324.jpg
  • img_history_label_2008.png
  • img_history_thumbnail_20080827.jpg
  • img_history_thumbnail_20080514.jpg
  • img_history_thumbnail_20080212.jpg
  • img_history_label_2007.png
  • img_history_thumbnail_20071111.jpg
  • img_history_thumbnail_20070901.jpg
  • img_history_thumbnail_20070622.jpg
  • img_history_label_2006.png
  • img_history_thumbnail_20060104.jpg
  • img_history_label_2005.png
  • img_history_thumbnail_20050401.jpg
  • img_history_label_2004.png
  • img_history_thumbnail_20041111.jpg
  • img_history_label_2000.png
  • img_history_thumbnail_20000715.jpg
  • btn_airship_down.png
  • btn_footer_blog.png
  • btn_footer_techblog.png
  • btn_footer_designblog.png
  • btn_footer_reportblog.png
  • obj_cloud.png
  • bg_ground.png
  • bg_building.png
  • btn_scrollable_navigater.png

Our browser made a total of 100 requests to load all elements on the main page. We found that 96% of them (96 requests) were addressed to the original, 2% (2 requests) were made to and 1% (1 request) were made to The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain

Additional info on


The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ecstudio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.









Possible request optimization











Normal result

IP address uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 5
NS 300
NS 300
NS 300
NS 300

Language and encoding

Normal result


N/A  language flag


JA ja language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Japanese. Our system also found out that main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Poor result

Visitor World Map

Country of origin for 100% of all visits is Japan. It’s good for that their server is also located in Japan, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Ecstudio. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

Share this report in social media

Analyze another website