Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

yac8341.co.jp

公認 やちよ中央自動車学校 TOP

Page Load Speed

6.1 sec in total

First Response

948 ms

Resources Loaded

5 sec

Page Rendered

177 ms

yac8341.co.jp screenshot

About Website

Click here to check amazing Yac 8341 content. Otherwise, check out these important facts you probably never knew about yac8341.co.jp

千葉県八千代市にある公認自動車教習所です。普通自動車、大型二輪、普通二輪の運転免許が取れます。

Visit yac8341.co.jp

Key Findings

We analyzed Yac8341.co.jp page load time and found that the first response time was 948 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

yac8341.co.jp performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

3/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.2 s

51/100

10%

Network Requests Diagram

yac8341.co.jp

948 ms

hpbparts.css

715 ms

container_1Nd_2c_spec.css

558 ms

main_1Nd_2c1.css

812 ms

user1.css

853 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 98% of them (41 requests) were addressed to the original Yac8341.co.jp, 2% (1 request) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (3.5 sec) belongs to the original domain Yac8341.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.7 kB (23%)

Content Size

271.3 kB

After Optimization

208.6 kB

In fact, the total size of Yac8341.co.jp main page is 271.3 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. 15% of websites need less resources to load. Images take 212.3 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 7.6 kB

  • Original 11.0 kB
  • After minification 10.0 kB
  • After compression 3.4 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 7.6 kB or 69% of the original size.

Image Optimization

-6%

Potential reduce by 12.0 kB

  • Original 212.3 kB
  • After minification 200.3 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. Yac 8341 images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 1.2 kB

  • Original 1.6 kB
  • After minification 1.2 kB
  • After compression 384 B

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 1.2 kB or 76% of the original size.

CSS Optimization

-90%

Potential reduce by 41.9 kB

  • Original 46.5 kB
  • After minification 26.5 kB
  • After compression 4.5 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. Yac8341.co.jp needs all CSS files to be minified and compressed as it can save up to 41.9 kB or 90% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (8%)

Requests Now

38

After Optimization

35

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yac 8341. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

yac8341.co.jp accessibility score

79

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.

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

yac8341.co.jp best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

yac8341.co.jp SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Yac8341.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 Yac8341.co.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Yac 8341. 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: