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Report Summary

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    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

rois.ac.jp

情報・システム研究機構

Page Load Speed

8 sec in total

First Response

795 ms

Resources Loaded

6.9 sec

Page Rendered

299 ms

rois.ac.jp screenshot

About Website

Welcome to rois.ac.jp homepage info - get ready to check Rois best content for Japan right away, or after learning these important things about rois.ac.jp

情報・システム研究機構は、全国の大学等の研究者コミュニティと連携して、極域科学、情報学、統計数理、遺伝学、データサイエンスの国際水準の総合研究を推進するとともに、現代の諸問題を情報とシステムという視点から捉え、分野の枠を越えた融合的な研究を行っています。

Visit rois.ac.jp

Key Findings

We analyzed Rois.ac.jp page load time and found that the first response time was 795 ms and then it took 7.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

rois.ac.jp performance score

0

Network Requests Diagram

rois.ac.jp

795 ms

import.css

370 ms

top.css

378 ms

jquery-1.7.2.min.js

1003 ms

runs.js

396 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that all of those requests were addressed to Rois.ac.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Rois.ac.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 238.0 kB (27%)

Content Size

887.8 kB

After Optimization

649.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rois.ac.jp main page is 887.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 600.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 36.8 kB

  • Original 44.7 kB
  • After minification 41.4 kB
  • After compression 7.9 kB

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 36.8 kB or 82% of the original size.

Image Optimization

-4%

Potential reduce by 21.8 kB

  • Original 600.3 kB
  • After minification 578.6 kB

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. Rois images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 162.1 kB

  • Original 220.9 kB
  • After minification 216.7 kB
  • After compression 58.8 kB

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 162.1 kB or 73% of the original size.

CSS Optimization

-79%

Potential reduce by 17.4 kB

  • Original 22.0 kB
  • After minification 15.0 kB
  • After compression 4.6 kB

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. Rois.ac.jp needs all CSS files to be minified and compressed as it can save up to 17.4 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (11%)

Requests Now

64

After Optimization

57

  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rois. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rois.ac.jp

rois.ac.jp

795 ms

import.css

import.css

370 ms

top.css

top.css

378 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

1003 ms

runs.js

runs.js

396 ms

amazingslider.js

amazingslider.js

1036 ms

initslider-1.js

initslider-1.js

589 ms

base.css

base.css

1418 ms

common.css

common.css

422 ms

module.css

module.css

452 ms

bg_green.jpg

bg_green.jpg

227 ms

bg_top.jpg

bg_top.jpg

357 ms

logo.gif

logo.gif

383 ms

subnav01.gif

subnav01.gif

386 ms

subnav02.gif

subnav02.gif

389 ms

subnav-staff.jpg

subnav-staff.jpg

440 ms

subnav-english.jpg

subnav-english.jpg

638 ms

g-navi_home_o.jpg

g-navi_home_o.jpg

752 ms

g-navi_topics.jpg

g-navi_topics.jpg

756 ms

g-navi_guide.jpg

g-navi_guide.jpg

793 ms

g-navi_info.jpg

g-navi_info.jpg

798 ms

g-navi_link.jpg

g-navi_link.jpg

829 ms

g-navi_access.jpg

g-navi_access.jpg

1057 ms

02.jpg

02.jpg

1461 ms

03.jpg

03.jpg

1525 ms

04.jpg

04.jpg

1582 ms

05.jpg

05.jpg

1591 ms

06.jpg

06.jpg

1566 ms

07.jpg

07.jpg

1815 ms

08.jpg

08.jpg

2299 ms

btn_toplist01.jpg

btn_toplist01.jpg

1940 ms

btn_toplist02.jpg

btn_toplist02.jpg

1930 ms

btn_toplist03.jpg

btn_toplist03.jpg

2009 ms

btn_toplist04.jpg

btn_toplist04.jpg

2024 ms

btn_toplist05.jpg

btn_toplist05.jpg

2203 ms

btn_toplist06.jpg

btn_toplist06.jpg

2288 ms

h2_news.jpg

h2_news.jpg

2302 ms

tolist.gif

tolist.gif

2412 ms

ico_newsa_nii.gif

ico_newsa_nii.gif

2409 ms

ico_newsa_research.gif

ico_newsa_research.gif

2593 ms

new.jpg

new.jpg

2691 ms

ico_newsa_rois.gif

ico_newsa_rois.gif

2683 ms

ico_newsa_nipr.gif

ico_newsa_nipr.gif

2736 ms

ico_newsa_coop-math.gif

ico_newsa_coop-math.gif

2790 ms

ico_newsa_togoob.gif

ico_newsa_togoob.gif

2802 ms

ico_newsa_nig.gif

ico_newsa_nig.gif

2986 ms

h2_event.jpg

h2_event.jpg

2850 ms

banner_4kikou.jpg

banner_4kikou.jpg

2730 ms

banner_rc2015_5.jpg

banner_rc2015_5.jpg

2981 ms

ura.jpg

ura.jpg

3019 ms

danjyo_banner2015.jpg

danjyo_banner2015.jpg

2829 ms

yakushin_banner.jpg

yakushin_banner.jpg

2954 ms

woman190_researchers.gif

woman190_researchers.gif

2811 ms

rep_banner25.jpg

rep_banner25.jpg

2775 ms

saiyou2012_2.jpg

saiyou2012_2.jpg

2845 ms

saiyou_shokuin.jpg

saiyou_shokuin.jpg

2957 ms

bnr_titeki.gif

bnr_titeki.gif

2973 ms

banr_dbcls.jpg

banr_dbcls.jpg

3129 ms

cybersecurity2015.gif

cybersecurity2015.gif

2772 ms

fusei2.gif

fusei2.gif

2434 ms

security_site190.gif

security_site190.gif

2448 ms

jishinkanren_banner.gif

jishinkanren_banner.gif

2580 ms

setsuden_taisaku_banner.gif

setsuden_taisaku_banner.gif

2585 ms

allow01.gif

allow01.gif

2623 ms

btn_pagetop.gif

btn_pagetop.gif

2506 ms

ico-pdf-01.gif

ico-pdf-01.gif

2430 ms

playvideo-64-64-0.png

playvideo-64-64-0.png

2409 ms

SEO Factors

rois.ac.jp SEO score

0

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rois.ac.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Rois.ac.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

rois.ac.jp

Open Graph description is not detected on the main page of Rois. 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: