Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

rkbr.jp

RKBラジオ

Page Load Speed

4.4 sec in total

First Response

322 ms

Resources Loaded

3.8 sec

Page Rendered

267 ms

rkbr.jp screenshot

About Website

Visit rkbr.jp now to see the best up-to-date Rkbr content for Japan and also check out these interesting facts you probably never knew about rkbr.jp

RKBラジオの番組情報や番組案内、イベント情報、ブログ、ライブカメラ、ポッドキャスティングなど。周波数は福岡1278kHz、北九州1197kHz、大牟田・行橋1062kHz

Visit rkbr.jp

Key Findings

We analyzed Rkbr.jp page load time and found that the first response time was 322 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

rkbr.jp performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.9 s

100/100

10%

Network Requests Diagram

rkbr.jp

322 ms

reset.css

149 ms

common.css

296 ms

top_style.css

302 ms

jquery.js

481 ms

Our browser made a total of 131 requests to load all elements on the main page. We found that 60% of them (79 requests) were addressed to the original Rkbr.jp, 13% (17 requests) were made to Blog.rkbr.jp and 12% (16 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Saimu110.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 397.8 kB (21%)

Content Size

1.9 MB

After Optimization

1.5 MB

In fact, the total size of Rkbr.jp main page is 1.9 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. 60% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 39.0 kB

  • Original 51.5 kB
  • After minification 48.1 kB
  • After compression 12.5 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 39.0 kB or 76% of the original size.

Image Optimization

-11%

Potential reduce by 172.2 kB

  • Original 1.6 MB
  • After minification 1.4 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, Rkbr needs image optimization as it can save up to 172.2 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 165.2 kB

  • Original 239.9 kB
  • After minification 194.5 kB
  • After compression 74.8 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 165.2 kB or 69% of the original size.

CSS Optimization

-79%

Potential reduce by 21.4 kB

  • Original 27.0 kB
  • After minification 20.8 kB
  • After compression 5.6 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. Rkbr.jp needs all CSS files to be minified and compressed as it can save up to 21.4 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (32%)

Requests Now

129

After Optimization

88

The browser has sent 129 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rkbr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

rkbr.jp accessibility score

94

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

Links do not have a discernible name

Best Practices

rkbr.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

rkbr.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 Rkbr.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 Rkbr.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

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