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nyushi-sugaku.com screenshot

Report Summary

  • 64

    Performance

    Renders faster than
    78% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

nyushi-sugaku.com

塾講師が公開！わかる中学数学

Page Load Speed

4.4 sec in total

First Response

1.4 sec

Resources Loaded

2.8 sec

Page Rendered

163 ms

nyushi-sugaku.com screenshot

About Website

Click here to check amazing Nyushi Sugaku content for Japan. Otherwise, check out these important facts you probably never knew about nyushi-sugaku.com

中学 数学は全ておまかせ！中学数学塾講師による定期テスト数学対策から高校入試の数学対策まで、中学生の数学を全面サポート！高校入試数学研究所です

Visit nyushi-sugaku.com

Key Findings

We analyzed Nyushi-sugaku.com page load time and found that the first response time was 1.4 sec and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

nyushi-sugaku.com performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

nyushi-sugaku.com

1441 ms

calendar.css

397 ms

style.css

590 ms

jquery.js

981 ms

jquery.droppy.js

400 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 88% of them (29 requests) were addressed to the original Nyushi-sugaku.com, 3% (1 request) were made to Nyushi-sugaku.sakura.ne.jp and 3% (1 request) were made to Assoc-amazon.jp. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Nyushi-sugaku.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 162.3 kB (59%)

Content Size

276.7 kB

After Optimization

114.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nyushi-sugaku.com main page is 276.7 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. 15% of websites need less resources to load. HTML takes 121.1 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 106.0 kB

  • Original 121.1 kB
  • After minification 120.1 kB
  • After compression 15.1 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 106.0 kB or 88% of the original size.

Image Optimization

-2%

Potential reduce by 1.4 kB

  • Original 80.4 kB
  • After minification 79.0 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. Nyushi Sugaku images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 46.2 kB

  • Original 64.7 kB
  • After minification 61.9 kB
  • After compression 18.5 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 46.2 kB or 71% of the original size.

CSS Optimization

-83%

Potential reduce by 8.6 kB

  • Original 10.4 kB
  • After minification 6.4 kB
  • After compression 1.7 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. Nyushi-sugaku.com needs all CSS files to be minified and compressed as it can save up to 8.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (42%)

Requests Now

31

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nyushi Sugaku. 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 as a result speed up the page load time.

Network Requests Diagram

nyushi-sugaku.com

nyushi-sugaku.com

1441 ms

calendar.css

calendar.css

397 ms

style.css

style.css

590 ms

jquery.js

jquery.js

981 ms

jquery.droppy.js

jquery.droppy.js

400 ms

droppy.css

droppy.css

404 ms

side_bar1.js

side_bar1.js

580 ms

script.php

script.php

1058 ms

ir

ir

240 ms

ir

ir

238 ms

back.gif

back.gif

238 ms

SK_ROGO1.gif

SK_ROGO1.gif

239 ms

icon.gif

icon.gif

240 ms

yellowgreen_mozi_a.gif

yellowgreen_mozi_a.gif

238 ms

tama_05a.gif

tama_05a.gif

239 ms

blue_mozi_a.gif

blue_mozi_a.gif

557 ms

red_mozi_a.gif

red_mozi_a.gif

356 ms

green_mozi_a.gif

green_mozi_a.gif

588 ms

orange_mozi_a.gif

orange_mozi_a.gif

394 ms

line.gif

line.gif

481 ms

teisei130807b.png

teisei130807b.png

604 ms

teisei1304-09.png

teisei1304-09.png

533 ms

jw100-teisei-01.png

jw100-teisei-01.png

588 ms

jw100-teisei-02.png

jw100-teisei-02.png

595 ms

mail4.gif

mail4.gif

711 ms

tama_03.gif

tama_03.gif

742 ms

hyoushi_sansu.png

hyoushi_sansu.png

787 ms

icon01.gif

icon01.gif

786 ms

main_photo.jpg

main_photo.jpg

894 ms

titlebar.gif

titlebar.gif

707 ms

sidebar.gif

sidebar.gif

791 ms

51r%2BG7q5irL._SL110_.jpg

51r%2BG7q5irL._SL110_.jpg

9 ms

right.gif

right.gif

180 ms

Accessibility Review

nyushi-sugaku.com accessibility score

61

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

nyushi-sugaku.com best practices score

42

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

nyushi-sugaku.com SEO score

67

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nyushi-sugaku.com 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 Nyushi-sugaku.com 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

nyushi-sugaku.com

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