Jr-central.co.jp Site Title
ＪＲ東海 Central Japan Railway Company
Jr-central.co.jp Meta Description
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
Jr-central.co.jp Test Results
jr-central.co.jp Mobile Usability: 89/100
Quick overview:
Configure the viewport
Your page specifies a fixed-width desktop viewport. Use a responsive viewport to allow your page to render properly on all devices.
Configuring a viewport specifying width=device-width instead of width=750 will allow your page to adapt for devices of various widths. This may require additional work to adapt your styling for smaller screens.
jr-central.co.jp Mobile Speed: 7/100
Quick overview:
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 3.9MiB (71% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_010.jpg could save 426.3KiB (83% reduction).
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
https://jr-central.co.jp/_assets/_config/config.js
Optimize CSS Delivery of the following:
https://jr-central.co.jp/_assets/_css/reset.css
...
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://jr-central.co.jp/_assets/_config/config.js (expiration not specified)
...
Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 2% of the final above-the-fold content could be rendered with the full HTML response.
...
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 21.3KiB (60% reduction).
Compressing https://jr-central.co.jp/_assets/_img/ico_logo_02.svg could save 2.9KiB (56% reduction).
...
Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 10.9KiB (27% reduction).
Minifying https://jr-central.co.jp/_assets/_javascript/common.js?_=1549023905893 could save 4.5KiB (32% reduction) after compression.
...
Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 2.5KiB (14% reduction).
Minifying https://jr-central.co.jp/_assets/_css/sp/standard.css?v=1549023905896 could save 2.5KiB (14% reduction) after compression.
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