Access itschool-best.jp. 講師派遣型・出張パソコン教室の【ＩＴスクール】

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value18.4 s

0/100

25%

SI (Speed Index)

Value18.6 s

0/100

10%

TBT (Total Blocking Time)

Value460 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.408

24/100

15%

TTI (Time to Interactive)

Value21.1 s

1/100

10%

itschool-best.jp

6445 ms

styles.css

345 ms

settings.css

355 ms

jquery-ui.css

7 ms

footable.core.css

356 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 77% of them (98 requests) were addressed to the original Itschool-best.jp, 8% (10 requests) were made to Static.xx.fbcdn.net and 3% (4 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (6.4 sec) belongs to the original domain Itschool-best.jp.

Content Size

3.2 MB

After Optimization

3.1 MB

In fact, the total size of Itschool-best.jp main page is 3.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 100.7 kB

Original 130.5 kB
After minification 128.3 kB
After compression 29.9 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 100.7 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 40.1 kB

Original 2.6 MB
After minification 2.5 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. Itschool Best images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 19.7 kB

Original 412.8 kB
After minification 412.6 kB
After compression 393.1 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

-13%

Potential reduce by 14.7 kB

Original 115.8 kB
After minification 115.8 kB
After compression 101.1 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. Itschool-best.jp needs all CSS files to be minified and compressed as it can save up to 14.7 kB or 13% of the original size.

Requests Now

122

After Optimization

The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Itschool Best. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 52 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

High

Image elements do not have [alt] attributes

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses 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 Itschool-best.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 Itschool-best.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

itschool-best.jp

Open Graph description is not detected on the main page of Itschool Best. 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

講師派遣型・出張パソコン教室の【ＩＴスクール】

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)

Network Requests Diagram

itschool-best.jp

styles.css

settings.css

jquery-ui.css

footable.core.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

itschool-best.jp

styles.css

settings.css

jquery-ui.css

footable.core.css

bootstrap.css

chosen.css

mystyle.css

woocommerce-layout.css

woocommerce.css

style.css

bootstrap.min.css

style.css

fontello.css

nivo-slider.css

magnific-popup.css

jquery.snippet.min.css

css

jquery.datetimepicker.css

font-awesome.min.css

style.css

js_composer.css

jquery.js

jquery-migrate.min.js

core.min.js

jquery.validate.js

footable.js

footable.sort.js

footable.paginate.js

footable.filter.js

chosen.jquery.js

jquery.datetimepicker.js

widget.min.js

mouse.min.js

slider.min.js

jquery.validate.min.js

script.js

javascript.js

jquery-ui.min.js

jquery.themepunch.tools.min.js

jquery.themepunch.revolution.min.js

jquery.form.min.js

scripts.js