Tools & Wizards About Us
rcsc.co.jp screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

rcsc.co.jp

防災減災システム | アールシーソリューション株式会社

Page Load Speed

2.9 sec in total

First Response

242 ms

Resources Loaded

2.6 sec

Page Rendered

59 ms

rcsc.co.jp screenshot

About Website

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

防災減災システムの専門家、アールシーソリューション株式会社。地震といった災害情報の配信や、防災・減災システム開発ならお任せください。

Visit rcsc.co.jp

Key Findings

We analyzed Rcsc.co.jp page load time and found that the first response time was 242 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

rcsc.co.jp performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

38/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value730 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.5 s

11/100

10%

Network Requests Diagram

www.rcsc.co.jp

242 ms

minified.js

29 ms

focus-within-polyfill.js

70 ms

polyfill.min.js

1359 ms

thunderbolt-commons.a79d872a.bundle.min.js

55 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Rcsc.co.jp, 36% (16 requests) were made to Static.parastorage.com and 29% (13 requests) were made to Static.wixstatic.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Polyfill-fastly.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 725.4 kB (60%)

Content Size

1.2 MB

After Optimization

480.4 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Rcsc.co.jp main page is 1.2 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. 45% of websites need less resources to load. HTML takes 900.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 718.6 kB

  • Original 900.4 kB
  • After minification 898.7 kB
  • After compression 181.8 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 718.6 kB or 80% of the original size.

Image Optimization

-6%

Potential reduce by 3.1 kB

  • Original 55.1 kB
  • After minification 52.0 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. Rcsc images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 3.6 kB

  • Original 250.3 kB
  • After minification 250.3 kB
  • After compression 246.6 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 11 (38%)

Requests Now

29

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rcsc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.rcsc.co.jp

www.rcsc.co.jp

242 ms

minified.js

minified.js

29 ms

focus-within-polyfill.js

focus-within-polyfill.js

70 ms

polyfill.min.js

polyfill.min.js

1359 ms

thunderbolt-commons.a79d872a.bundle.min.js

thunderbolt-commons.a79d872a.bundle.min.js

55 ms

main.cd290f82.bundle.min.js

main.cd290f82.bundle.min.js

61 ms

main.renderer.1d21f023.bundle.min.js

main.renderer.1d21f023.bundle.min.js

54 ms

lodash.min.js

lodash.min.js

58 ms

react.production.min.js

react.production.min.js

56 ms

react-dom.production.min.js

react-dom.production.min.js

63 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

60 ms

wix-perf-measure.umd.min.js

wix-perf-measure.umd.min.js

61 ms

rc-logo-%E6%A8%AA-%E3%82%AD%E3%83%A3%E3%83%83%E3%83%81%E3%82%B3%E3%83%94%E3%83%BC-%E6%97%A5%E3%81%AE%E3%81%BF.png

rc-logo-%E6%A8%AA-%E3%82%AD%E3%83%A3%E3%83%83%E3%83%81%E3%82%B3%E3%83%94%E3%83%BC-%E6%97%A5%E3%81%AE%E3%81%BF.png

299 ms

note.png

note.png

448 ms

event.png

event.png

501 ms

602883_9d5a894ea35145bd866965c86a87d64b~mv2.gif

602883_9d5a894ea35145bd866965c86a87d64b~mv2.gif

310 ms

602883_5e16772cbd9d4420973335376b547ee8~mv2.png

602883_5e16772cbd9d4420973335376b547ee8~mv2.png

312 ms

602883_b99d8c912bc1477a934587a7624054ee.gif

602883_b99d8c912bc1477a934587a7624054ee.gif

311 ms

602883_ef087ecb5ae746869e886136ef79a14f.gif

602883_ef087ecb5ae746869e886136ef79a14f.gif

310 ms

602883_9a725983221f4971a34d9597176a2e87.gif

602883_9a725983221f4971a34d9597176a2e87.gif

313 ms

602883_588c2fa02a6845e19c3a5c7655a4efc0~mv2.gif

602883_588c2fa02a6845e19c3a5c7655a4efc0~mv2.gif

314 ms

602883_7d99f5bb35cd47b599c6f412231e077d.gif

602883_7d99f5bb35cd47b599c6f412231e077d.gif

314 ms

OGP_4.png

OGP_4.png

532 ms

602883_6e32a8f3f1e04cc68f5e0039974595c9.gif

602883_6e32a8f3f1e04cc68f5e0039974595c9.gif

315 ms

602883_7cdb0d4edafb4da288fa38546c7cf858.gif

602883_7cdb0d4edafb4da288fa38546c7cf858.gif

315 ms

bundle.min.js

bundle.min.js

61 ms

908c4810-64db-4b46-bb8e-823eb41f68c0.woff

908c4810-64db-4b46-bb8e-823eb41f68c0.woff

45 ms

116 ms

104 ms

105 ms

108 ms

103 ms

98 ms

137 ms

137 ms

132 ms

139 ms

137 ms

139 ms

deprecation-ja.v5.html

deprecation-ja.v5.html

5 ms

bolt-performance

bolt-performance

22 ms

deprecation-style.v5.css

deprecation-style.v5.css

6 ms

right-arrow.svg

right-arrow.svg

17 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

4 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

4 ms

Accessibility Review

rcsc.co.jp accessibility score

89

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best Practices

rcsc.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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

rcsc.co.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

    JA

  • Encoding

    UTF-8

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

rcsc.co.jp

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