Tools & Wizards About Us
eslclub.jp screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

eslclub.jp

ESL club｜準2級プラスの対策もできる「英語を教えない英語塾」

Page Load Speed

12.1 sec in total

First Response

879 ms

Resources Loaded

9.2 sec

Page Rendered

2 sec

eslclub.jp screenshot

About Website

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

文法ばかりで社会に出ても役に立たない英語力。話すにしても、決まったフレーズでしか会話できない英語力。私たちは、こんな日本の英語教育を変えたいと考えました。だから私たちは、いわゆる“英語”を教えることをやめました。ESL clubでは、社会に出たときに本当に役立つ英語力が手に入ります。

Visit eslclub.jp

Key Findings

We analyzed Eslclub.jp page load time and found that the first response time was 879 ms and then it took 11.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

eslclub.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value15.0 s

0/100

25%

SI (Speed Index)

Value16.9 s

0/100

10%

TBT (Total Blocking Time)

Value4,170 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value26.8 s

0/100

10%

Network Requests Diagram

eslclub.jp

879 ms

eslclub.jp

965 ms

slick.css

597 ms

modaal.css

638 ms

jquery.fs.boxer.css

654 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 79% of them (59 requests) were addressed to the original Eslclub.jp, 5% (4 requests) were made to Use.fontawesome.com and 3% (2 requests) were made to Statics.a8.net. The less responsive or slowest element that took the longest time to load (4.3 sec) belongs to the original domain Eslclub.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 186.7 kB (13%)

Content Size

1.5 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Eslclub.jp main page is 1.5 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. 40% of websites need less resources to load. Images take 870.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 106.6 kB

  • Original 139.5 kB
  • After minification 139.2 kB
  • After compression 32.8 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 106.6 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 870.7 kB
  • After minification 870.7 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. ESL Club images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 30.8 kB

  • Original 284.6 kB
  • After minification 284.6 kB
  • After compression 253.8 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 30.8 kB or 11% of the original size.

CSS Optimization

-27%

Potential reduce by 49.2 kB

  • Original 182.3 kB
  • After minification 182.3 kB
  • After compression 133.0 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. Eslclub.jp needs all CSS files to be minified and compressed as it can save up to 49.2 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 58 (83%)

Requests Now

70

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ESL Club. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 44 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

eslclub.jp

eslclub.jp

879 ms

eslclub.jp

eslclub.jp

965 ms

slick.css

slick.css

597 ms

modaal.css

modaal.css

638 ms

jquery.fs.boxer.css

jquery.fs.boxer.css

654 ms

teacher.css

teacher.css

653 ms

style.css

style.css

1055 ms

story.css

story.css

787 ms

common.css

common.css

1172 ms

autoptimize_7969c5ec3d3319cb06f80ae488e6c617.css

autoptimize_7969c5ec3d3319cb06f80ae488e6c617.css

1777 ms

all.css

all.css

35 ms

v4-shims.css

v4-shims.css

48 ms

spider.js

spider.js

1209 ms

script.js

script.js

1231 ms

script.js

script.js

1365 ms

jquery.min.js

jquery.min.js

1993 ms

jquery-migrate.min.js

jquery-migrate.min.js

1740 ms

optimize.js

optimize.js

83 ms

a8sales.js

a8sales.js

52 ms

a8crossDomain.js

a8crossDomain.js

61 ms

jquery.min.js

jquery.min.js

24 ms

js

js

80 ms

slick.min.js

slick.min.js

1624 ms

jquery.inview.min.js

jquery.inview.min.js

1625 ms

picturefill.min.js

picturefill.min.js

1758 ms

modaal.js

modaal.js

2447 ms

jquery.fs.boxer.js

jquery.fs.boxer.js

2446 ms

teacher.js

teacher.js

2454 ms

function.js

function.js

2446 ms

lazysizes.min.js

lazysizes.min.js

2642 ms

index.js

index.js

2648 ms

app.js

app.js

3001 ms

app.js

app.js

3023 ms

wp-share-buttons.js

wp-share-buttons.js

3024 ms

script.js

script.js

3033 ms

script.js

script.js

3203 ms

script.js

script.js

3210 ms

script.js

script.js

3589 ms

script.js

script.js

3597 ms

app.js

app.js

3601 ms

front.min.js

front.min.js

3606 ms

app.js

app.js

3773 ms

widgets.js

widgets.js

3787 ms

sidebar-sticky-widget-area.js

sidebar-sticky-widget-area.js

4142 ms

hash-nav.js

hash-nav.js

4168 ms

smooth-scroll.js

smooth-scroll.js

3773 ms

app.js

app.js

3746 ms

fontawesome.js

fontawesome.js

4075 ms

page-top.js

page-top.js

3892 ms

drop-nav.js

drop-nav.js

4120 ms

global-nav.js

global-nav.js

3867 ms

gtm.js

gtm.js

476 ms

cta_first_std.png

cta_first_std.png

3219 ms

kv.jpg

kv.jpg

3882 ms

pc_online_bn2112.png

pc_online_bn2112.png

3323 ms

arrows.svg

arrows.svg

3415 ms

thought_photo.jpg

thought_photo.jpg

3905 ms

no01.svg

no01.svg

3605 ms

no02.svg

no02.svg

3809 ms

no03.svg

no03.svg

3903 ms

no04.svg

no04.svg

3997 ms

no05.svg

no05.svg

3857 ms

fa-solid-900.ttf

fa-solid-900.ttf

50 ms

fa-regular-400.ttf

fa-regular-400.ttf

23 ms

logo.svg

logo.svg

3608 ms

sec01_photo01.jpg

sec01_photo01.jpg

4276 ms

sec01_photo02.jpg

sec01_photo02.jpg

4251 ms

sec01_photo03.jpg

sec01_photo03.jpg

3889 ms

sec01_photo04.jpg

sec01_photo04.jpg

4330 ms

cookie.js

cookie.js

975 ms

loader.js

loader.js

321 ms

itm.js

itm.js

252 ms

tpD4QT

tpD4QT

280 ms

segment

segment

320 ms

gtm.js

gtm.js

75 ms

Accessibility Review

eslclub.jp accessibility score

95

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

<frame> or <iframe> elements do not have a title

Best Practices

eslclub.jp best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

eslclub.jp SEO score

98

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 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 Eslclub.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 Eslclub.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

eslclub.jp

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