5.8 sec in total
329 ms
5.1 sec
445 ms
Click here to check amazing Schoo content for Japan. Otherwise, check out these important facts you probably never knew about schoo.jp
365日、オンライン学習できる無料の動画授業をライブ配信。「一生学べる学校」をテーマに、デジタルスキル・ビジネス力・デザイン・テクノロジー・リベラルアーツなどの最先端を皆で一緒に学んでいきます。
Visit schoo.jpWe analyzed Schoo.jp page load time and found that the first response time was 329 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
schoo.jp performance score
name
value
score
weighting
Value6.3 s
3/100
10%
Value12.7 s
0/100
25%
Value17.4 s
0/100
10%
Value1,440 ms
15/100
30%
Value0.11
87/100
15%
Value29.3 s
0/100
10%
329 ms
978 ms
789 ms
797 ms
753 ms
Our browser made a total of 88 requests to load all elements on the main page. We found that 10% of them (9 requests) were addressed to the original Schoo.jp, 61% (54 requests) were made to S3-ap-northeast-1.amazonaws.com and 5% (4 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.8 sec) relates to the external source S3-ap-northeast-1.amazonaws.com.
Page size can be reduced by 825.9 kB (43%)
1.9 MB
1.1 MB
In fact, the total size of Schoo.jp main page is 1.9 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. 55% of websites need less resources to load. Images take 826.0 kB which makes up the majority of the site volume.
Potential reduce by 71.0 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 71.0 kB or 79% of the original size.
Potential reduce by 25.5 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. Schoo images are well optimized though.
Potential reduce by 290.6 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 290.6 kB or 61% of the original size.
Potential reduce by 438.8 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. Schoo.jp needs all CSS files to be minified and compressed as it can save up to 438.8 kB or 82% of the original size.
Number of requests can be reduced by 26 (32%)
81
55
The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Schoo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
schoo.jp
329 ms
guest
978 ms
font-awesome.min.css
789 ms
font-awesome.min.css
797 ms
app-e824656974c5aacb70b0b10ac5da5bb1.min.css
753 ms
app-5127aebb7a0448aabf9d886280abbf2b.min.css
475 ms
jquery.min.js
74 ms
jquery.easing.min.js
62 ms
underscore-min.js
685 ms
backbone.min.js
818 ms
jquery.circliful.min.js
817 ms
jquery.flexslider-min.js
853 ms
angular.min.js
86 ms
angular-resource.min.js
99 ms
angular-sanitize.js
103 ms
app-f9b4586629abaf9425ca0d354ea43f45.min.js
481 ms
app-45a41df23ebc74a064587e5a6c0f5660.min.js
489 ms
s_retargeting.js
956 ms
conversion.js
51 ms
app-3d3c3d72aad2bf197929e573e2bc94d0.min.js
809 ms
app-1d8d6f7bea2c5393b0ba26935ddda866.min.js
999 ms
iframe_api
168 ms
logo_big_white.png
175 ms
bn600x120.png
377 ms
bnr_masterplan.jpg
335 ms
biz600x120b.png
335 ms
2966.jpg
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img_faculty_design_v02.png
690 ms
img_faculty_programming_v02.png
767 ms
img_faculty_biz_english_v02.png
765 ms
img_faculty_startup_v02.png
830 ms
img_faculty_marketing_v02.png
832 ms
img_culture.png
912 ms
bnr_masterplan720_90.jpg
651 ms
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sec02_figure.png
1417 ms
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3049.jpg
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3056.jpg
1408 ms
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app_store.png
1386 ms
analytics.js
167 ms
ja_app_rgb_wo_60.png
1409 ms
sdk.js
100 ms
102 ms
65 ms
www-widgetapi.js
85 ms
xd_arbiter.php
68 ms
collect
41 ms
collect
84 ms
fontawesome-webfont.woff
1531 ms
58 ms
MHRElraLtv4
72 ms
fontawesome-webfont.woff
1724 ms
www-embed-player-vflQrT_sR.css
21 ms
www-embed-player.js
51 ms
base.js
134 ms
grid_dot.png
1240 ms
icon_job01.png
1260 ms
icon_job02.png
1362 ms
icon_job03.png
1437 ms
icon_job04.png
1396 ms
yrK4EqpSRdoujKQmsJoZ5WaLgeULvcWnibQMQSxOOnM.js
9 ms
ad_status.js
54 ms
icon_job06.png
1338 ms
icon_job05.png
1345 ms
loading-bar.gif
1341 ms
2UX7WLTfW3W8TclTUvlFyQ.woff
62 ms
RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff
74 ms
loading.gif
1430 ms
get_watch_cnt
509 ms
sprite_watch_btn.png
991 ms
schoo.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-hidden="true"] elements contain focusable descendents
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
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.
schoo.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
schoo.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Schoo.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 Schoo.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.
schoo.jp
Open Graph data is detected on the main page of Schoo. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: