Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

rjnet.jp

RJNET-JP 鉄道ジャーナル

Page Load Speed

5 sec in total

First Response

981 ms

Resources Loaded

3.4 sec

Page Rendered

573 ms

rjnet.jp screenshot

About Website

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

Visit rjnet.jp

Key Findings

We analyzed Rjnet.jp page load time and found that the first response time was 981 ms and then it took 4 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

rjnet.jp performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.9 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.9 s

100/100

25%

SI (Speed Index)

Value1.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.9 s

100/100

10%

Network Requests Diagram

rjnet.jp

981 ms

findObj.js

397 ms

mac2005.css

589 ms

SP01.jpg

757 ms

SP02.jpg

1159 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that all of those requests were addressed to Rjnet.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Rjnet.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 44.0 kB (7%)

Content Size

646.4 kB

After Optimization

602.4 kB

In fact, the total size of Rjnet.jp main page is 646.4 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. 20% of websites need less resources to load. Images take 616.3 kB which makes up the majority of the site volume.

HTML Optimization

-65%

Potential reduce by 16.2 kB

  • Original 24.8 kB
  • After minification 24.3 kB
  • After compression 8.6 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 16.2 kB or 65% of the original size.

Image Optimization

-4%

Potential reduce by 23.8 kB

  • Original 616.3 kB
  • After minification 592.5 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. RJNET images are well optimized though.

JavaScript Optimization

-79%

Potential reduce by 871 B

  • Original 1.1 kB
  • After minification 970 B
  • After compression 225 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 871 B or 79% of the original size.

CSS Optimization

-74%

Potential reduce by 3.1 kB

  • Original 4.2 kB
  • After minification 3.2 kB
  • After compression 1.1 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. Rjnet.jp needs all CSS files to be minified and compressed as it can save up to 3.1 kB or 74% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

29

After Optimization

29

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RJNET. According to our analytics all requests are already optimized.

Accessibility Review

rjnet.jp accessibility score

73

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

rjnet.jp best practices score

75

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

Serves images with low resolution

SEO Factors

rjnet.jp SEO score

62

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT-JIS

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

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