Tools & Wizards About Us
j-central.jp screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

j-central.jp

日本中央税理士法人（東京都港区の会計事務所）

Page Load Speed

4.4 sec in total

First Response

373 ms

Resources Loaded

3.7 sec

Page Rendered

386 ms

j-central.jp screenshot

About Website

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

税理士 見田村元宣、公認会計士 青木寿幸、社会保険労務士 内海正人を代表とする独立系「提案型会計事務所」日本中央税理士法人グループです。

Visit j-central.jp

Key Findings

We analyzed J-central.jp page load time and found that the first response time was 373 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

j-central.jp performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value8.8 s

1/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

j-central.jp

373 ms

www.j-central.jp

936 ms

yakuhanjp-narrow.min.css

34 ms

yakuhanjp-noto.min.css

35 ms

yakuhanmp.min.css

38 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 47% of them (26 requests) were addressed to the original J-central.jp, 31% (17 requests) were made to Cdn.jsdelivr.net and 4% (2 requests) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain J-central.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 108.4 kB (25%)

Content Size

441.4 kB

After Optimization

333.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of J-central.jp main page is 441.4 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. 35% of websites need less resources to load. Images take 288.9 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 13.7 kB

  • Original 18.9 kB
  • After minification 17.9 kB
  • After compression 5.3 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 13.7 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 288.9 kB
  • After minification 288.9 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. J Central images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 53.2 kB

  • Original 82.6 kB
  • After minification 82.4 kB
  • After compression 29.4 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 53.2 kB or 64% of the original size.

CSS Optimization

-81%

Potential reduce by 41.6 kB

  • Original 51.0 kB
  • After minification 50.9 kB
  • After compression 9.5 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. J-central.jp needs all CSS files to be minified and compressed as it can save up to 41.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (38%)

Requests Now

37

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J Central. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

j-central.jp

j-central.jp

373 ms

www.j-central.jp

www.j-central.jp

936 ms

yakuhanjp-narrow.min.css

yakuhanjp-narrow.min.css

34 ms

yakuhanjp-noto.min.css

yakuhanjp-noto.min.css

35 ms

yakuhanmp.min.css

yakuhanmp.min.css

38 ms

common.min.css

common.min.css

537 ms

typesquare.js

typesquare.js

384 ms

jquery-3.2.1.min.js

jquery-3.2.1.min.js

34 ms

jquery-migrate-3.0.1.min.js

jquery-migrate-3.0.1.min.js

36 ms

jquery.easing.min.js

jquery.easing.min.js

40 ms

lazysizes.min.js

lazysizes.min.js

52 ms

js

js

71 ms

particles.min.js

particles.min.js

735 ms

jquery.inview.min.js

jquery.inview.min.js

520 ms

common.js

common.js

517 ms

css

css

33 ms

logo.png

logo.png

214 ms

banner_recruit.jpg

banner_recruit.jpg

442 ms

icon_tel.png

icon_tel.png

213 ms

key.jpg

key.jpg

779 ms

icon_check.png

icon_check.png

444 ms

top_recruit_catch.png

top_recruit_catch.png

442 ms

top_service_en.png

top_service_en.png

566 ms

icon_service01.png

icon_service01.png

550 ms

icon_service02.png

icon_service02.png

561 ms

icon_service03.png

icon_service03.png

624 ms

icon_service04.png

icon_service04.png

719 ms

icon_service05.png

icon_service05.png

737 ms

icon_service06.png

icon_service06.png

734 ms

icon_service07.png

icon_service07.png

796 ms

icon_service08.png

icon_service08.png

888 ms

icon_service09.png

icon_service09.png

914 ms

top_publication_en.png

top_publication_en.png

912 ms

top_group_en.png

top_group_en.png

950 ms

js

js

86 ms

analytics.js

analytics.js

237 ms

YakuHanJP-Light.woff

YakuHanJP-Light.woff

26 ms

YakuHanJP-DemiLight.woff

YakuHanJP-DemiLight.woff

26 ms

YakuHanJP-Thin.woff

YakuHanJP-Thin.woff

70 ms

YakuHanJP-Regular.woff

YakuHanJP-Regular.woff

76 ms

YakuHanJP-Medium.woff

YakuHanJP-Medium.woff

76 ms

YakuHanJP-Bold.woff

YakuHanJP-Bold.woff

185 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

235 ms

KFOlCnqEu92Fr1MmSU5fBBc-.woff

KFOlCnqEu92Fr1MmSU5fBBc-.woff

303 ms

YakuHanMP-Medium.woff

YakuHanMP-Medium.woff

185 ms

YakuHanMP-SemiBold.woff

YakuHanMP-SemiBold.woff

184 ms

YakuHanMP-Regular.woff

YakuHanMP-Regular.woff

231 ms

YakuHanMP-Light.woff

YakuHanMP-Light.woff

231 ms

YakuHanMP-ExtraLight.woff

YakuHanMP-ExtraLight.woff

230 ms

YakuHanMP-Bold.woff

YakuHanMP-Bold.woff

230 ms

YakuHanMP-Black.woff

YakuHanMP-Black.woff

230 ms

iconfont.ttf

iconfont.ttf

831 ms

YakuHanJP-Black.woff

YakuHanJP-Black.woff

229 ms

bg_top_recruit.jpg

bg_top_recruit.jpg

1527 ms

collect

collect

42 ms

Accessibility Review

j-central.jp accessibility score

96

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.

Best Practices

j-central.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

j-central.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

    JA

  • Encoding

    UTF-8

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

j-central.jp

Open Graph data is detected on the main page of J Central. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: