Tools & Wizards About Us
joker.co.jp screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

joker.co.jp

ペットショップジョーカー

Page Load Speed

4 sec in total

First Response

679 ms

Resources Loaded

2.7 sec

Page Rendered

574 ms

joker.co.jp screenshot

About Website

Welcome to joker.co.jp homepage info - get ready to check Joker best content for Japan right away, or after learning these important things about joker.co.jp

ペットショップ ジョーカーは東京六本木、二子玉川、日本橋、南町田、立川、吉祥寺、横浜、大宮、川口、千葉、柏の葉に展開し健康な子犬、子猫のご紹介からトリミングサロン、しつけ教室、様々なイベントを通じてペットのいる生活を豊かにします

Visit joker.co.jp

Key Findings

We analyzed Joker.co.jp page load time and found that the first response time was 679 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

joker.co.jp performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

39/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value10.0 s

26/100

10%

Network Requests Diagram

joker.co.jp

679 ms

bootstrap.min.css

38 ms

bootstrap-icons.css

55 ms

swiper-bundle.min.css

120 ms

style.css

330 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 69% of them (37 requests) were addressed to the original Joker.co.jp, 11% (6 requests) were made to Cdn.jsdelivr.net and 6% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Joker.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 127.9 kB (12%)

Content Size

1.1 MB

After Optimization

959.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Joker.co.jp main page is 1.1 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. 80% 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 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 28.9 kB

  • Original 37.1 kB
  • After minification 31.4 kB
  • After compression 8.2 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 5.7 kB, which is 15% 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 28.9 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 90.5 kB

  • Original 1.0 MB
  • After minification 928.1 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. Joker images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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

-79%

Potential reduce by 8.5 kB

  • Original 10.7 kB
  • After minification 7.4 kB
  • After compression 2.2 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. Joker.co.jp needs all CSS files to be minified and compressed as it can save up to 8.5 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (24%)

Requests Now

51

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Joker. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

joker.co.jp

joker.co.jp

679 ms

bootstrap.min.css

bootstrap.min.css

38 ms

bootstrap-icons.css

bootstrap-icons.css

55 ms

swiper-bundle.min.css

swiper-bundle.min.css

120 ms

style.css

style.css

330 ms

js

js

65 ms

jquery-3.2.1.slim.min.js

jquery-3.2.1.slim.min.js

20 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

24 ms

bs5lightbox.js

bs5lightbox.js

16 ms

swiper-bundle.min.js

swiper-bundle.min.js

41 ms

swiper-bundle.min.js

swiper-bundle.min.js

15 ms

css2

css2

33 ms

analytics.js

analytics.js

127 ms

gtm.js

gtm.js

125 ms

joker_logo.png

joker_logo.png

212 ms

toypoo.png

toypoo.png

282 ms

chiwawa.jpg

chiwawa.jpg

334 ms

dacs.jpg

dacs.jpg

410 ms

shuna.jpg

shuna.jpg

411 ms

maltese.jpg

maltese.jpg

411 ms

scottishfold.png

scottishfold.png

582 ms

61216.jpg

61216.jpg

412 ms

61215.jpg

61215.jpg

499 ms

61213.jpg

61213.jpg

574 ms

61212.jpg

61212.jpg

577 ms

61210.jpg

61210.jpg

742 ms

61206.jpg

61206.jpg

577 ms

ko.jpg

ko.jpg

665 ms

main2.jpg

main2.jpg

903 ms

title_trimming2.jpg

title_trimming2.jpg

909 ms

kanshasai.png

kanshasai.png

908 ms

kawaguchi.jpg

kawaguchi.jpg

1078 ms

tachikawa.jpg

tachikawa.jpg

997 ms

ambassador.png

ambassador.png

1075 ms

combi.png

combi.png

1069 ms

hotel.png

hotel.png

1241 ms

bed-ss.jpg

bed-ss.jpg

1240 ms

aprimain.jpg

aprimain.jpg

1330 ms

instaimage.png

instaimage.png

1399 ms

1.jpg

1.jpg

1408 ms

takusan2.png

takusan2.png

1244 ms

amigo_logo.png

amigo_logo.png

1407 ms

anicom_banner.jpg

anicom_banner.jpg

1406 ms

sigmatech.gif

sigmatech.gif

1411 ms

petcool.gif

petcool.gif

1495 ms

F_baner.gif

F_baner.gif

1732 ms

andwan.GIF

andwan.GIF

1571 ms

kizuna.gif

kizuna.gif

1572 ms

banner_foresthills2.gif

banner_foresthills2.gif

1574 ms

font

font

113 ms

bootstrap-icons.woff

bootstrap-icons.woff

90 ms

collect

collect

27 ms

destination

destination

62 ms

ytag.js

ytag.js

716 ms

Accessibility Review

joker.co.jp accessibility score

93

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

joker.co.jp best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

joker.co.jp SEO score

100

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

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

joker.co.jp

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