Tools & Wizards About Us
zenterior.jp screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

zenterior.jp

ウッドデッキ、コーリアンの施工は実績多数のゼンテリア株式会社へ - ウッドデッキ、コーリアンの施工のことならゼンテリア株式会社(エービーシー商会グループ)

Page Load Speed

2.1 sec in total

First Response

354 ms

Resources Loaded

1.5 sec

Page Rendered

246 ms

zenterior.jp screenshot

About Website

Click here to check amazing Zenterior content. Otherwise, check out these important facts you probably never knew about zenterior.jp

ウッドデッキ20年以上、デュポン™コーリアン® 25年以上の施工実績を持つエキスパート集団のゼンテリアへお任せ下さい！ 公共施設を始め商業施設から住空間に至るまで様々な分野で多彩な仕事を手がけております。 ウッドデッキや デュポン™コーリアン®以外の建材も多数取り扱っておりますのでお気軽にお問い合わせください。

Visit zenterior.jp

Key Findings

We analyzed Zenterior.jp page load time and found that the first response time was 354 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

zenterior.jp performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value6.2 s

43/100

10%

TBT (Total Blocking Time)

Value670 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0.248

50/100

15%

TTI (Time to Interactive)

Value7.7 s

46/100

10%

Network Requests Diagram

www.zenterior.jp

354 ms

main.css

78 ms

layout.css

254 ms

font.css

80 ms

web.js.81df69f80213857d0c7a.js

70 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Zenterior.jp, 36% (8 requests) were made to U.jimdo.com and 32% (7 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (564 ms) relates to the external source U.jimdo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 586.2 kB (59%)

Content Size

986.4 kB

After Optimization

400.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zenterior.jp main page is 986.4 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. 30% of websites need less resources to load. Javascripts take 653.2 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 28.0 kB

  • Original 45.9 kB
  • After minification 44.6 kB
  • After compression 18.0 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. 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 28.0 kB or 61% of the original size.

Image Optimization

-4%

Potential reduce by 3.3 kB

  • Original 88.9 kB
  • After minification 85.6 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. Zenterior images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 405.8 kB

  • Original 653.2 kB
  • After minification 653.2 kB
  • After compression 247.4 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 405.8 kB or 62% of the original size.

CSS Optimization

-75%

Potential reduce by 149.1 kB

  • Original 198.3 kB
  • After minification 198.0 kB
  • After compression 49.2 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. Zenterior.jp needs all CSS files to be minified and compressed as it can save up to 149.1 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (71%)

Requests Now

21

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zenterior. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.zenterior.jp

www.zenterior.jp

354 ms

main.css

main.css

78 ms

layout.css

layout.css

254 ms

font.css

font.css

80 ms

web.js.81df69f80213857d0c7a.js

web.js.81df69f80213857d0c7a.js

70 ms

23.gif

23.gif

232 ms

image.png

image.png

320 ms

header.jpg

header.jpg

564 ms

line.gif

line.gif

164 ms

gradient.gif

gradient.gif

178 ms

navi_bg.gif

navi_bg.gif

181 ms

dots.gif

dots.gif

182 ms

web_oldtemplate.css.2d44259dc7097634303898168c3a0804.css

web_oldtemplate.css.2d44259dc7097634303898168c3a0804.css

163 ms

143.99a74527afa33c1b9dc7.js

143.99a74527afa33c1b9dc7.js

71 ms

ga.js

ga.js

43 ms

analytics.js

analytics.js

96 ms

loginstate

loginstate

232 ms

__utm.gif

__utm.gif

21 ms

__utm.gif

__utm.gif

28 ms

__utm.gif

__utm.gif

36 ms

collect

collect

19 ms

collect

collect

3 ms

Accessibility Review

zenterior.jp accessibility score

88

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.

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

Links do not have a discernible name

Best Practices

zenterior.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

zenterior.jp SEO score

93

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

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zenterior.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 Zenterior.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

zenterior.jp

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