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eikoh.co.jp screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

eikoh.co.jp

栄光ゼミナール公式サイト | 中学受験・高校受験・大学受験・個別指導はお任せください。

Page Load Speed

5.6 sec in total

First Response

341 ms

Resources Loaded

3.6 sec

Page Rendered

1.7 sec

eikoh.co.jp screenshot

About Website

Welcome to eikoh.co.jp homepage info - get ready to check Eikoh best content for Japan right away, or after learning these important things about eikoh.co.jp

中学受験・高校受験・大学受験・個別指導の塾、栄光ゼミナール公式サイト。少人数グループ指導や個別指導など多様な指導で、一人ひとりの成績向上・志望校合格を実現します。

Visit eikoh.co.jp

Key Findings

We analyzed Eikoh.co.jp page load time and found that the first response time was 341 ms and then it took 5.3 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

eikoh.co.jp performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value1,030 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.1 s

26/100

10%

Network Requests Diagram

eikoh.co.jp

341 ms

eikoh.co.jp

1230 ms

gtm.js

68 ms

js

98 ms

style.min.css

846 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 71% of them (25 requests) were addressed to the original Eikoh.co.jp, 9% (3 requests) were made to Googletagmanager.com and 6% (2 requests) were made to Info.eikoh-seminar.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Eikoh.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 123.5 kB (56%)

Content Size

219.7 kB

After Optimization

96.2 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Eikoh.co.jp main page is 219.7 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. 25% of websites need less resources to load. HTML takes 128.1 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 108.2 kB

  • Original 128.1 kB
  • After minification 123.0 kB
  • After compression 19.9 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 108.2 kB or 84% of the original size.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-22%

Potential reduce by 15.3 kB

  • Original 70.6 kB
  • After minification 70.6 kB
  • After compression 55.3 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. Eikoh.co.jp needs all CSS files to be minified and compressed as it can save up to 15.3 kB or 22% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (48%)

Requests Now

33

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Eikoh. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

eikoh.co.jp

eikoh.co.jp

341 ms

eikoh.co.jp

eikoh.co.jp

1230 ms

gtm.js

gtm.js

68 ms

js

js

98 ms

style.min.css

style.min.css

846 ms

style.css

style.css

1180 ms

grade-label-color.css

grade-label-color.css

1344 ms

jquery.min.js

jquery.min.js

1513 ms

jquery-migrate.min.js

jquery-migrate.min.js

1347 ms

block.css

block.css

1348 ms

fix.css

fix.css

1349 ms

block.js

block.js

1348 ms

header_widget.js

header_widget.js

851 ms

modaal.min.js

modaal.min.js

1507 ms

slick.min.js

slick.min.js

1529 ms

jquery.cookie.min.js

jquery.cookie.min.js

26 ms

script.js

script.js

1530 ms

smush-lazy-load.min.js

smush-lazy-load.min.js

1530 ms

js

js

58 ms

analytics.js

analytics.js

18 ms

collect

collect

12 ms

collect

collect

66 ms

ga-audiences

ga-audiences

77 ms

logo-eikoh.svg

logo-eikoh.svg

167 ms

logo-zkai.svg

logo-zkai.svg

170 ms

240415_eikoh_kakikoshu_home_mv_PC.webp

240415_eikoh_kakikoshu_home_mv_PC.webp

501 ms

RM_2671_2.jpg.webp

RM_2671_2.jpg.webp

168 ms

img02@2x.png.webp

img02@2x.png.webp

168 ms

icon-search.svg

icon-search.svg

169 ms

header-icon-home.svg

header-icon-home.svg

330 ms

icon-building.svg

icon-building.svg

331 ms

json.php

json.php

202 ms

icon-check.png.webp

icon-check.png.webp

274 ms

btn-icon@2x.png.webp

btn-icon@2x.png.webp

275 ms

UC_2828_top_20241231-768x332.webp

UC_2828_top_20241231-768x332.webp

170 ms

Accessibility Review

eikoh.co.jp accessibility score

68

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

eikoh.co.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

High

Page has valid source maps

SEO Factors

eikoh.co.jp SEO score

92

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

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 uses legible font sizes

High

Tap targets are not sized appropriately

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 Eikoh.co.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 Eikoh.co.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

eikoh.co.jp

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