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rakuden.co.jp screenshot

Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

rakuden.co.jp

洛南電気工業株式会社（公式ホームページ）｜電気工事の設計から施工、メンテナンスまで

Page Load Speed

2.4 sec in total

First Response

526 ms

Resources Loaded

1.8 sec

Page Rendered

138 ms

rakuden.co.jp screenshot

About Website

Welcome to rakuden.co.jp homepage info - get ready to check Rakuden best content right away, or after learning these important things about rakuden.co.jp

わたしたち洛南電気工業は1951年の創業以来、各種電気工事の設計から施工、メンテナンスまであらゆる電気設備工事に精通しており、長年の経験で培った確かな信頼と技術力を兼ね備えております。電気工事を通して更なる地域の発展を目指して歩み続けます。

Visit rakuden.co.jp

Key Findings

We analyzed Rakuden.co.jp page load time and found that the first response time was 526 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

rakuden.co.jp performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

94/100

25%

SI (Speed Index)

Value2.9 s

94/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.128

82/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

rakuden.co.jp

526 ms

topbar.gif

350 ms

shamei.bmp

1236 ms

topbar2.gif

296 ms

botan().gif

174 ms

Our browser made a total of 15 requests to load all elements on the main page. We found that all of those requests were addressed to Rakuden.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Rakuden.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 10.0 kB (4%)

Content Size

235.5 kB

After Optimization

225.5 kB

  • HTML
  • Images

In fact, the total size of Rakuden.co.jp main page is 235.5 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. Only 5% of websites need less resources to load. Images take 233.1 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 1.7 kB

  • Original 2.4 kB
  • After minification 2.3 kB
  • After compression 654 B

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 1.7 kB or 72% of the original size.

Image Optimization

-4%

Potential reduce by 8.3 kB

  • Original 233.1 kB
  • After minification 224.8 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. Rakuden images are well optimized though.

Requests Breakdown

We found no issues to fix!

Requests Now

14

After Optimization

14

  • Images

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rakuden. According to our analytics all requests are already optimized.

Network Requests Diagram

rakuden.co.jp

rakuden.co.jp

526 ms

topbar.gif

topbar.gif

350 ms

shamei.bmp

shamei.bmp

1236 ms

topbar2.gif

topbar2.gif

296 ms

botan().gif

botan().gif

174 ms

botan(HOME).gif

botan(HOME).gif

184 ms

botan(kaishaannai).gif

botan(kaishaannai).gif

185 ms

botan(jigyounaiyou).gif

botan(jigyounaiyou).gif

238 ms

botan(sekoujisseki).gif

botan(sekoujisseki).gif

260 ms

botan(akusesu).gif

botan(akusesu).gif

258 ms

botan(otoiawase).gif

botan(otoiawase).gif

303 ms

top010.jpg

top010.jpg

1019 ms

shatyo.gif

shatyo.gif

779 ms

toji-011.jpg

toji-011.jpg

615 ms

ander.gif

ander.gif

442 ms

Accessibility Review

rakuden.co.jp accessibility score

95

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

rakuden.co.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

rakuden.co.jp SEO score

92

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

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

rakuden.co.jp

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