Tools & Wizards About Us
suralajuku.jp screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

suralajuku.jp

塾開業『すらら』【公式】｜オンライン教材を使って低リスクの塾開業

Page Load Speed

6.4 sec in total

First Response

658 ms

Resources Loaded

4.5 sec

Page Rendered

1.2 sec

suralajuku.jp screenshot

About Website

Click here to check amazing Suralajuku content for Japan. Otherwise, check out these important facts you probably never knew about suralajuku.jp

オンライン教材を使って低リスクの塾開業ができます。数百もの独立開校をサポートし、支援を続けている「すらら」が塾の成功に焦点をあてた塾経営をご提案します。

Visit suralajuku.jp

Key Findings

We analyzed Suralajuku.jp page load time and found that the first response time was 658 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

suralajuku.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.0 s

1/100

10%

LCP (Largest Contentful Paint)

Value18.0 s

0/100

25%

SI (Speed Index)

Value10.8 s

6/100

10%

TBT (Total Blocking Time)

Value3,670 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value23.3 s

1/100

10%

Network Requests Diagram

suralajuku.jp

658 ms

suralajuku.jp

1103 ms

gtm.js

87 ms

reset.css

434 ms

style.css

1212 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 80% of them (32 requests) were addressed to the original Suralajuku.jp, 8% (3 requests) were made to Use.typekit.net and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Suralajuku.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 595.7 kB (12%)

Content Size

5.1 MB

After Optimization

4.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Suralajuku.jp main page is 5.1 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. 50% of websites need less resources to load. Images take 4.6 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 20.7 kB

  • Original 28.5 kB
  • After minification 28.2 kB
  • After compression 7.8 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 20.7 kB or 73% of the original size.

Image Optimization

-3%

Potential reduce by 156.3 kB

  • Original 4.6 MB
  • After minification 4.5 MB

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. Suralajuku images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 74.9 kB

  • Original 110.6 kB
  • After minification 105.3 kB
  • After compression 35.7 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 74.9 kB or 68% of the original size.

CSS Optimization

-90%

Potential reduce by 343.8 kB

  • Original 383.1 kB
  • After minification 266.5 kB
  • After compression 39.3 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. Suralajuku.jp needs all CSS files to be minified and compressed as it can save up to 343.8 kB or 90% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (28%)

Requests Now

36

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Suralajuku. 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.

Network Requests Diagram

suralajuku.jp

suralajuku.jp

658 ms

suralajuku.jp

suralajuku.jp

1103 ms

gtm.js

gtm.js

87 ms

reset.css

reset.css

434 ms

style.css

style.css

1212 ms

animate.css

animate.css

1008 ms

all.css

all.css

55 ms

vsg6ifb.css

vsg6ifb.css

79 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

868 ms

jquery.cookie.js

jquery.cookie.js

49 ms

wow.min.js

wow.min.js

651 ms

main.js

main.js

653 ms

p.css

p.css

19 ms

shell.js

shell.js

62 ms

title001.svg

title001.svg

225 ms

present.svg

present.svg

224 ms

omg.svg

omg.svg

221 ms

graph001.svg

graph001.svg

437 ms

title002.svg

title002.svg

226 ms

feature001.png

feature001.png

349 ms

feature002.png

feature002.png

604 ms

feature003.png

feature003.png

869 ms

kayoi.svg

kayoi.svg

446 ms

merit01.svg

merit01.svg

1092 ms

merit02.svg

merit02.svg

522 ms

kanae.jpg

kanae.jpg

656 ms

c_school.jpg

c_school.jpg

656 ms

hikari.jpg

hikari.jpg

697 ms

img003.jpg

img003.jpg

1009 ms

back001.png

back001.png

1103 ms

img004.jpg

img004.jpg

877 ms

img006.jpg

img006.jpg

1043 ms

back002.jpg

back002.jpg

1468 ms

bar.svg

bar.svg

1051 ms

right.svg

right.svg

1158 ms

img001.jpg

img001.jpg

1170 ms

img002.jpg

img002.jpg

1692 ms

img005.jpg

img005.jpg

1479 ms

d

d

129 ms

d

d

129 ms

Accessibility Review

suralajuku.jp accessibility score

83

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.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

suralajuku.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

suralajuku.jp SEO score

92

Search Engine Optimization Advices

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

High

Document doesn't use legible font sizes

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Suralajuku.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 Suralajuku.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.

Social Sharing Optimization

suralajuku.jp

Open Graph data is detected on the main page of Suralajuku. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: