7 sec in total
444 ms
5.1 sec
1.5 sec
Click here to check amazing Keio content for Japan. Otherwise, check out these important facts you probably never knew about keio.ac.jp
Keio University is a leading research university committed to excellence and innovation in education, research and medicine. It is located in central Tokyo.
Visit keio.ac.jpWe analyzed Keio.ac.jp page load time and found that the first response time was 444 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
keio.ac.jp performance score
name
value
score
weighting
Value8.0 s
0/100
10%
Value10.5 s
0/100
25%
Value12.8 s
3/100
10%
Value60 ms
100/100
30%
Value0
100/100
15%
Value8.2 s
41/100
10%
444 ms
807 ms
182 ms
44 ms
171 ms
Our browser made a total of 60 requests to load all elements on the main page. We found that 92% of them (55 requests) were addressed to the original Keio.ac.jp, 3% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Cloud.typography.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Keio.ac.jp.
Page size can be reduced by 608.3 kB (19%)
3.2 MB
2.6 MB
In fact, the total size of Keio.ac.jp main page is 3.2 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 2.4 MB which makes up the majority of the site volume.
Potential reduce by 53.2 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. This page needs HTML code to be minified as it can gain 19.9 kB, which is 33% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 53.2 kB or 88% of the original size.
Potential reduce by 421 B
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. Keio images are well optimized though.
Potential reduce by 148.8 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 148.8 kB or 65% of the original size.
Potential reduce by 405.9 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. Keio.ac.jp needs all CSS files to be minified and compressed as it can save up to 405.9 kB or 93% of the original size.
Number of requests can be reduced by 18 (32%)
56
38
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Keio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
keio.ac.jp
444 ms
www.keio.ac.jp
807 ms
182 ms
fonts.css
44 ms
base.css
171 ms
module_common.css
344 ms
module_layout.css
639 ms
global.css
657 ms
index.css
493 ms
lib.js
523 ms
initialize.js
698 ms
cn.cgi
786 ms
index.js
549 ms
brand
16 ms
print.css
231 ms
analytics.js
164 ms
title_01.png
416 ms
canvas_01.gif
289 ms
menu_btn_canvas_01.gif
250 ms
pic_07.jpg
1163 ms
pic_07_sp.jpg
494 ms
pic_06.jpg
1966 ms
pic_06_sp.jpg
735 ms
pic_05.jpg
1300 ms
pic_05_sp.jpg
718 ms
pic_02.jpg
1404 ms
pic_02_sp.jpg
1035 ms
pic_37.jpg
1220 ms
pic_36.jpg
1512 ms
pic_33.jpg
1487 ms
pic_34.jpg
1705 ms
pic_35.jpg
1645 ms
pic_29.jpg
2051 ms
pic_26.jpg
1813 ms
pic_25.jpg
1987 ms
pic_01.jpg
1818 ms
pic_02.jpg
1867 ms
pic_03.jpg
2138 ms
pic_04.jpg
2163 ms
pic_05.jpg
2189 ms
pic_06.jpg
2135 ms
pic_07.jpg
2304 ms
pic_08.jpg
2416 ms
facebook_01.png
2305 ms
twitter_01.png
2299 ms
youtube_01.png
2335 ms
linkedin_01.png
2349 ms
logo_01.png
2462 ms
name_01.png
2463 ms
name_01_en.png
2473 ms
logo_02.png
2506 ms
search_01.png
2415 ms
collect
18 ms
access_01.png
2334 ms
language_01.png
2325 ms
main_01.jpg
2212 ms
main_01.jpg
2134 ms
main_01.jpg
1968 ms
main_01.jpg
1943 ms
main_01.jpg
1751 ms
keio.ac.jp accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
keio.ac.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
keio.ac.jp SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Keio.ac.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Keio.ac.jp 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.
keio.ac.jp
Open Graph description is not detected on the main page of Keio. 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: