Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

rkb.jp

RKBオンライン

Page Load Speed

6.1 sec in total

First Response

452 ms

Resources Loaded

5.4 sec

Page Rendered

236 ms

rkb.jp screenshot

About Website

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

福岡の民間放送局RKB毎日放送の公式WEBサイトです。福岡・佐賀を中心にニュース・暮らしに役立つ情報の発信や、テレビ番組・ラジオ番組・イベント情報などを発信しています。

Visit rkb.jp

Key Findings

We analyzed Rkb.jp page load time and found that the first response time was 452 ms and then it took 5.7 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

rkb.jp performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value42.1 s

0/100

25%

SI (Speed Index)

Value11.6 s

5/100

10%

TBT (Total Blocking Time)

Value2,420 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.46

20/100

15%

TTI (Time to Interactive)

Value34.8 s

0/100

10%

Network Requests Diagram

rkb.jp

452 ms

rkb_top_styles.css

295 ms

rkb_common_style_ver2.css

444 ms

saigai.css

298 ms

jquery.js

739 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 98% of them (121 requests) were addressed to the original Rkb.jp, 2% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Rkb.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 791.4 kB (27%)

Content Size

2.9 MB

After Optimization

2.2 MB

In fact, the total size of Rkb.jp main page is 2.9 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 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 24.1 kB

  • Original 32.3 kB
  • After minification 30.5 kB
  • After compression 8.2 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 24.1 kB or 75% of the original size.

Image Optimization

-20%

Potential reduce by 527.8 kB

  • Original 2.6 MB
  • After minification 2.1 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, Rkb needs image optimization as it can save up to 527.8 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 175.0 kB

  • Original 250.2 kB
  • After minification 210.0 kB
  • After compression 75.2 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 175.0 kB or 70% of the original size.

CSS Optimization

-84%

Potential reduce by 64.4 kB

  • Original 77.0 kB
  • After minification 59.1 kB
  • After compression 12.5 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. Rkb.jp needs all CSS files to be minified and compressed as it can save up to 64.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (23%)

Requests Now

123

After Optimization

95

The browser has sent 123 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rkb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

rkb.jp accessibility score

87

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

rkb.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

rkb.jp SEO score

84

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

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

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

High

Tap targets are not sized appropriately

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 Rkb.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 Rkb.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 description is not detected on the main page of Rkb. 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: