3.7 sec in total
698 ms
2.8 sec
180 ms
Welcome to data-science.gr.jp homepage info - get ready to check Data Science best content for Japan right away, or after learning these important things about data-science.gr.jp
統計検定に関する事柄についてのまとめ.
Visit data-science.gr.jpWe analyzed Data-science.gr.jp page load time and found that the first response time was 698 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
data-science.gr.jp performance score
name
value
score
weighting
Value3.8 s
28/100
10%
Value3.8 s
56/100
25%
Value6.0 s
46/100
10%
Value1,010 ms
27/100
30%
Value0
100/100
15%
Value10.2 s
25/100
10%
698 ms
486 ms
345 ms
349 ms
351 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 44% of them (15 requests) were addressed to the original Data-science.gr.jp, 12% (4 requests) were made to Googleads.g.doubleclick.net and 6% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Data-science.gr.jp.
Page size can be reduced by 308.2 kB (62%)
493.5 kB
185.3 kB
In fact, the total size of Data-science.gr.jp main page is 493.5 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. 60% of websites need less resources to load. Javascripts take 263.4 kB which makes up the majority of the site volume.
Potential reduce by 36.2 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. 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 36.2 kB or 80% of the original size.
Potential reduce by 0 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. Data Science images are well optimized though.
Potential reduce by 116.6 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 116.6 kB or 44% of the original size.
Potential reduce by 155.4 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. Data-science.gr.jp needs all CSS files to be minified and compressed as it can save up to 155.4 kB or 85% of the original size.
Number of requests can be reduced by 20 (67%)
30
10
The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Data Science. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
data-science.gr.jp
698 ms
shCore.js
486 ms
shBrushBash.js
345 ms
shBrushPython.js
349 ms
shBrushR.js
351 ms
shBrushCpp.js
351 ms
shBrushPerl.js
379 ms
shCoreDefault.css
518 ms
bootstrap.css
1391 ms
font-awesome.min.css
699 ms
common.css
526 ms
brand
15 ms
brandjs.js
22 ms
adsbygoogle.js
39 ms
jquery.js
1146 ms
bootstrap.min.js
638 ms
common.js
523 ms
MathJax.js
21 ms
analytics.js
67 ms
fontawesome-webfont.woff
697 ms
branding.png
102 ms
widgets.js
81 ms
collect
85 ms
zrt_lookup.html
97 ms
show_ads_impl.js
263 ms
collect
87 ms
js
140 ms
MathJax.js
51 ms
widget_iframe.2f70fb173b9000da126c79afe2098f02.html
324 ms
TeX-AMS_HTML.js
99 ms
settings
145 ms
ads
152 ms
ads
167 ms
ads
203 ms
data-science.gr.jp accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
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
<frame> or <iframe> elements do not have a title
Form elements do not have associated labels
data-science.gr.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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
data-science.gr.jp SEO score
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
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Data-science.gr.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Data-science.gr.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.
data-science.gr.jp
Open Graph description is not detected on the main page of Data Science. 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: