Access pc4353.net. パソコン教室・スクールのパソコン市民講座｜初心者から資格取得まで

pc4353.net screenshot

1

Performance

Renders faster than
19% of other websites
82

Accessibility

Visual factors better than
that of 53% of websites
58

Best Practices

More advanced features
available than in
20% of websites
83

SEO

Google-friendlier than
46% of websites

First Response

562 ms

Resources Loaded

9.1 sec

Page Rendered

1.4 sec

pc4353.net screenshot

About Website

Welcome to pc4353.net homepage info - get ready to check Pc 4353 best content for Japan right away, or after learning these important things about pc4353.net

初心者からスキルアップ・資格取得まで安心のパソコン教室パソコン市民講座(東京/大阪ほか全国)。

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Key Findings

We analyzed Pc4353.net page load time and found that the first response time was 562 ms and then it took 10.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value27.6 s

0/100

25%

SI (Speed Index)

Value15.0 s

1/100

10%

TBT (Total Blocking Time)

Value8,030 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.851

4/100

15%

TTI (Time to Interactive)

Value26.3 s

0/100

10%

pc4353.net

562 ms

www.pc4353.net

1418 ms

jquery.matchHeight-min.js

519 ms

mh.js

530 ms

gtm.js

71 ms

Our browser made a total of 224 requests to load all elements on the main page. We found that 83% of them (187 requests) were addressed to the original Pc4353.net, 7% (15 requests) were made to Youtube.com and 4% (10 requests) were made to Jnn-pa.googleapis.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Pc4353.net.

Content Size

5.4 MB

After Optimization

4.7 MB

In fact, the total size of Pc4353.net main page is 5.4 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. Only a small number of websites need less resources to load. Images take 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 88.2 kB

Original 108.6 kB
After minification 95.4 kB
After compression 20.5 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 13.3 kB, which is 12% 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 88.2 kB or 81% of the original size.

Image Optimization

-10%

Potential reduce by 498.5 kB

Original 4.9 MB
After minification 4.4 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. Pc 4353 images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 11.0 kB

Original 248.7 kB
After minification 246.8 kB
After compression 237.6 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

-44%

Potential reduce by 70.6 kB

Original 160.0 kB
After minification 146.6 kB
After compression 89.4 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. Pc4353.net needs all CSS files to be minified and compressed as it can save up to 70.6 kB or 44% of the original size.

Requests Now

220

After Optimization

152

The browser has sent 220 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pc 4353. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 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 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

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

High

Page has valid source maps

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

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 Pc4353.net 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 Pc4353.net 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

pc4353.net

Open Graph description is not detected on the main page of Pc 4353. 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: