Access eteachers.jp. eTeachers

Report Summary

About Website

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

学年や教科ごとに、効果的な自学自習を支援するためのドリル型教材をご用意しています。

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name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.7 s

100/100

25%

SI (Speed Index)

Value1.0 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

eteachers.jp

1426 ms

jquery-ui-1.8.9.custom.css

762 ms

import.css

384 ms

index.css

579 ms

jquery-1.4.4.min.js

1160 ms

Our browser made a total of 109 requests to load all elements on the main page. We found that 96% of them (105 requests) were addressed to the original Eteachers.jp, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Eteachers.jp.

Content Size

996.8 kB

After Optimization

521.9 kB

In fact, the total size of Eteachers.jp main page is 996.8 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. 35% of websites need less resources to load. Images take 754.5 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 46.6 kB

Original 57.6 kB
After minification 48.7 kB
After compression 11.0 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. This page needs HTML code to be minified as it can gain 8.9 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 46.6 kB or 81% of the original size.

Image Optimization

-41%

Potential reduce by 306.0 kB

Original 754.5 kB
After minification 448.5 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. Obviously, ETeachers needs image optimization as it can save up to 306.0 kB or 41% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-60%

Potential reduce by 84.7 kB

Original 140.7 kB
After minification 133.8 kB
After compression 55.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 84.7 kB or 60% of the original size.

CSS Optimization

-85%

Potential reduce by 37.6 kB

Original 44.0 kB
After minification 29.3 kB
After compression 6.5 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. Eteachers.jp needs all CSS files to be minified and compressed as it can save up to 37.6 kB or 85% of the original size.

Requests Now

107

After Optimization

The browser has sent 107 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ETeachers. 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.

Accessibility Issues

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Search Engine Optimization Advices

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 Eteachers.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 Eteachers.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

eteachers.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

eTeachers

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)