Tools & Wizards About Us
zendai.jp screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

zendai.jp

東京の調布市仙川で靴教室・靴の学校｜関口善大靴工房

Page Load Speed

2.7 sec in total

First Response

666 ms

Resources Loaded

1.9 sec

Page Rendered

123 ms

zendai.jp screenshot

About Website

Visit zendai.jp now to see the best up-to-date Zendai content and also check out these interesting facts you probably never knew about zendai.jp

京王線・仙川駅から徒歩9分。2003年に始まった関口善大靴工房では、靴作り教室・靴作り学校・オーダー靴製作、また帽子、革小物などもお作り頂けます。

Visit zendai.jp

Key Findings

We analyzed Zendai.jp page load time and found that the first response time was 666 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

zendai.jp performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value17.4 s

0/100

25%

SI (Speed Index)

Value12.0 s

4/100

10%

TBT (Total Blocking Time)

Value720 ms

41/100

30%

CLS (Cumulative Layout Shift)

Value0.232

54/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

zendai.jp

666 ms

comp.css

471 ms

smoothscroll.js

483 ms

indexheader.jpg

478 ms

2013newbtn.jpg

324 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Zendai.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (917 ms) belongs to the original domain Zendai.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 33.4 kB (16%)

Content Size

215.4 kB

After Optimization

182.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zendai.jp main page is 215.4 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. 15% of websites need less resources to load. Images take 187.6 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 4.2 kB

  • Original 6.3 kB
  • After minification 6.0 kB
  • After compression 2.1 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 4.2 kB or 67% of the original size.

Image Optimization

-6%

Potential reduce by 10.6 kB

  • Original 187.6 kB
  • After minification 177.0 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. Zendai images are well optimized though.

JavaScript Optimization

-80%

Potential reduce by 3.7 kB

  • Original 4.6 kB
  • After minification 2.4 kB
  • After compression 902 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 3.7 kB or 80% of the original size.

CSS Optimization

-88%

Potential reduce by 14.9 kB

  • Original 16.9 kB
  • After minification 14.3 kB
  • After compression 2.0 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. Zendai.jp needs all CSS files to be minified and compressed as it can save up to 14.9 kB or 88% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

18

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zendai. According to our analytics all requests are already optimized.

Network Requests Diagram

zendai.jp

zendai.jp

666 ms

comp.css

comp.css

471 ms

smoothscroll.js

smoothscroll.js

483 ms

indexheader.jpg

indexheader.jpg

478 ms

2013newbtn.jpg

2013newbtn.jpg

324 ms

contents_new.jpg

contents_new.jpg

520 ms

top_p1.jpg

top_p1.jpg

917 ms

top_p1s.jpg

top_p1s.jpg

476 ms

top_p3s.jpg

top_p3s.jpg

341 ms

top_p4s.jpg

top_p4s.jpg

484 ms

top_p6s.jpg

top_p6s.jpg

511 ms

top_p5s.jpg

top_p5s.jpg

634 ms

top_p9s.jpg

top_p9s.jpg

635 ms

top_p8s.jpg

top_p8s.jpg

643 ms

fb_icon.gif

fb_icon.gif

680 ms

ig_icon.gif

ig_icon.gif

691 ms

tw_icon.gif

tw_icon.gif

790 ms

14th_space.jpg

14th_space.jpg

793 ms

bosyu.gif

bosyu.gif

790 ms

Accessibility Review

zendai.jp accessibility score

94

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

zendai.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zendai.jp SEO score

91

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zendai.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Zendai.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

zendai.jp

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