Tools & Wizards About Us
rsc.co.jp screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    75% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

rsc.co.jp

東京八王子のホームページ制作 WEB制作会社 ラズパイ開発・システム開発ならライジングサンコーポレーション株式会社

Page Load Speed

48.7 sec in total

First Response

5.3 sec

Resources Loaded

43 sec

Page Rendered

351 ms

rsc.co.jp screenshot

About Website

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

東京八王子でホームページ制作をしているWEB制作会社 システム開発やアプリ開発を行っているライジングサンコーポレーションです。強みが伝わるホームページ制作、業務が改善するシステム開発を心がけています。

Visit rsc.co.jp

Key Findings

We analyzed Rsc.co.jp page load time and found that the first response time was 5.3 sec and then it took 43.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 18 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

rsc.co.jp performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value160 ms

93/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.9 s

77/100

10%

Network Requests Diagram

rsc.co.jp

5349 ms

wp-emoji-release.min.js

20495 ms

styles.css

1440 ms

shortcodes.css

20461 ms

style.css

13309 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 98% of them (41 requests) were addressed to the original Rsc.co.jp, 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Rsc.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 164.2 kB (67%)

Content Size

243.5 kB

After Optimization

79.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rsc.co.jp main page is 243.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 116.4 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 15.3 kB

  • Original 20.7 kB
  • After minification 19.3 kB
  • After compression 5.4 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 15.3 kB or 74% of the original size.

Image Optimization

-5%

Potential reduce by 1.3 kB

  • Original 23.5 kB
  • After minification 22.2 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. Rsc images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 79.7 kB

  • Original 116.4 kB
  • After minification 110.0 kB
  • After compression 36.7 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 79.7 kB or 68% of the original size.

CSS Optimization

-82%

Potential reduce by 67.9 kB

  • Original 82.9 kB
  • After minification 63.6 kB
  • After compression 15.0 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. Rsc.co.jp needs all CSS files to be minified and compressed as it can save up to 67.9 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (22%)

Requests Now

23

After Optimization

18

  • Images
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rsc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rsc.co.jp

rsc.co.jp

5349 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

20495 ms

styles.css

styles.css

1440 ms

shortcodes.css

shortcodes.css

20461 ms

style.css

style.css

13309 ms

media-queries.css

media-queries.css

15713 ms

css

css

54 ms

lightbox.css

lightbox.css

7904 ms

themify-builder-style.css

themify-builder-style.css

20402 ms

default.min.css

default.min.css

16887 ms

jquery.js

jquery.js

20402 ms

jquery-migrate.min.js

jquery-migrate.min.js

20401 ms

jquery.form.min.js

jquery.form.min.js

19804 ms

scripts.js

scripts.js

19563 ms

themify.script.js

themify.script.js

19564 ms

themify.gallery.js

themify.gallery.js

19614 ms

lightbox.js

lightbox.js

19614 ms

comment-reply.min.js

comment-reply.min.js

19614 ms

carousel.min.js

carousel.min.js

19614 ms

themify.builder.module.plugins.js

themify.builder.module.plugins.js

19614 ms

themify.builder.script.js

themify.builder.script.js

19614 ms

wp-embed.min.js

wp-embed.min.js

19614 ms

header_bg.gif

header_bg.gif

3215 ms

img.php

img.php

19931 ms

search.png

search.png

3406 ms

icon_card.gif

icon_card.gif

3496 ms

card.gif

card.gif

4342 ms

icon_baby.gif

icon_baby.gif

15244 ms

babyroom.jpg

babyroom.jpg

7961 ms

icon_info.gif

icon_info.gif

6664 ms

green.jpg

green.jpg

7169 ms

icon_atm.gif

icon_atm.gif

6879 ms

inq1_6.png

inq1_6.png

9553 ms

east.jpg

east.jpg

19924 ms

west.jpg

west.jpg

19925 ms

rogo_1.gif

rogo_1.gif

10929 ms

sinsen.gif

sinsen.gif

11129 ms

livelove.gif

livelove.gif

11398 ms

daiso.gif

daiso.gif

13024 ms

gaia.gif

gaia.gif

13264 ms

renaissance.gif

renaissance.gif

14467 ms

arrow-up.png

arrow-up.png

15392 ms

Accessibility Review

rsc.co.jp accessibility score

73

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

rsc.co.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

rsc.co.jp SEO score

73

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    UTF-8

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

rsc.co.jp

Open Graph data is detected on the main page of PARSED_DOMAIN, but there is no image specified in description. It would be a good idea for the website admin to select a nice image that can properly represent the website in Open Graph data, otherwise the first found image will be taken for this purpose and social media information block will look like this: