Tools & Wizards About Us
jr-central.co.jp screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

jr-central.co.jp

ＪＲ東海 Central Japan Railway Company

Page Load Speed

6.4 sec in total

First Response

1.4 sec

Resources Loaded

3.8 sec

Page Rendered

1.2 sec

jr-central.co.jp screenshot

About Website

Visit jr-central.co.jp now to see the best up-to-date Jr Central content for Japan and also check out these interesting facts you probably never knew about jr-central.co.jp

ＪＲ東海の公式サイト。駅・きっぷ・TOICA・エクスプレス・カードのご利用や、企業・IR・採用情報、観光・おでかけ・キャンペーン情報などをご案内しています。| ＪＲ東海

Visit jr-central.co.jp

Key Findings

We analyzed Jr-central.co.jp page load time and found that the first response time was 1.4 sec and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

jr-central.co.jp performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value48.7 s

0/100

25%

SI (Speed Index)

Value22.8 s

0/100

10%

TBT (Total Blocking Time)

Value970 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.158

74/100

15%

TTI (Time to Interactive)

Value34.6 s

0/100

10%

Network Requests Diagram

jr-central.co.jp

1414 ms

gtm.js

78 ms

reset.css

641 ms

swiper-bundle.min.css

334 ms

config.js

642 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 72% of them (34 requests) were addressed to the original Jr-central.co.jp, 6% (3 requests) were made to Google-analytics.com and 4% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Jr-central.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 823.2 kB (17%)

Content Size

4.8 MB

After Optimization

4.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jr-central.co.jp main page is 4.8 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. 40% of websites need less resources to load. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 44.9 kB

  • Original 53.3 kB
  • After minification 41.1 kB
  • After compression 8.3 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. This page needs HTML code to be minified as it can gain 12.1 kB, which is 23% 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 44.9 kB or 84% of the original size.

Image Optimization

-16%

Potential reduce by 765.0 kB

  • Original 4.7 MB
  • After minification 3.9 MB

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. Obviously, Jr Central needs image optimization as it can save up to 765.0 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 550 B

  • Original 89.6 kB
  • After minification 89.6 kB
  • After compression 89.0 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

-72%

Potential reduce by 12.8 kB

  • Original 17.6 kB
  • After minification 17.1 kB
  • After compression 4.9 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. Jr-central.co.jp needs all CSS files to be minified and compressed as it can save up to 12.8 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (18%)

Requests Now

45

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jr 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 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

jr-central.co.jp

jr-central.co.jp

1414 ms

gtm.js

gtm.js

78 ms

reset.css

reset.css

641 ms

swiper-bundle.min.css

swiper-bundle.min.css

334 ms

config.js

config.js

642 ms

js

js

50 ms

analytics.js

analytics.js

25 ms

linkid.js

linkid.js

10 ms

collect

collect

20 ms

collect

collect

34 ms

ga-audiences

ga-audiences

110 ms

notosansjp.css

notosansjp.css

38 ms

lib.js

lib.js

196 ms

bp1_ban1.png

bp1_ban1.png

391 ms

bp1_ban2.png

bp1_ban2.png

774 ms

bp1_ban4.png

bp1_ban4.png

229 ms

ban_084.jpg

ban_084.jpg

608 ms

ban_031.jpg

ban_031.jpg

600 ms

ban_087.jpg

ban_087.jpg

407 ms

ban_017.png

ban_017.png

453 ms

ban_040.jpg

ban_040.jpg

699 ms

ban_051.jpg

ban_051.jpg

593 ms

ban_082.jpg

ban_082.jpg

733 ms

ban_081.jpg

ban_081.jpg

844 ms

ban_003.jpg

ban_003.jpg

788 ms

ban_065.jpg

ban_065.jpg

859 ms

ban_076.jpg

ban_076.jpg

914 ms

ban_009.jpg

ban_009.jpg

981 ms

ban_035.jpg

ban_035.jpg

964 ms

ban_010.png

ban_010.png

985 ms

ban_047.jpg

ban_047.jpg

1129 ms

ban_015.jpg

ban_015.jpg

1120 ms

ban_020.jpg

ban_020.jpg

1153 ms

ban_014.jpg

ban_014.jpg

1211 ms

ban_071.jpg

ban_071.jpg

1268 ms

ban_085.png

ban_085.png

1204 ms

ban_086.png

ban_086.png

1314 ms

ban_049.jpg

ban_049.jpg

1329 ms

ban_083.jpg

ban_083.jpg

1387 ms

ban_080.jpg

ban_080.jpg

1411 ms

ban_074.png

ban_074.png

1450 ms

ban_069.jpg

ban_069.jpg

1475 ms

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

0 ms

ytag.js

ytag.js

679 ms

c7v0igsltm

c7v0igsltm

41 ms

clarity.js

clarity.js

15 ms

c.gif

c.gif

7 ms

Accessibility Review

jr-central.co.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

jr-central.co.jp best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

jr-central.co.jp SEO score

92

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 Jr-central.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 Jr-central.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

jr-central.co.jp

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