Tools & Wizards About Us
rakucheck.jp screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    53% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

rakucheck.jp

新・食品表示チェッカー

Page Load Speed

4.6 sec in total

First Response

542 ms

Resources Loaded

3.7 sec

Page Rendered

338 ms

rakucheck.jp screenshot

About Website

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

食品表示のチェックシステム　新・食品表示チェッカー

Visit rakucheck.jp

Key Findings

We analyzed Rakucheck.jp page load time and found that the first response time was 542 ms and then it took 4 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

rakucheck.jp performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value13.5 s

0/100

25%

SI (Speed Index)

Value9.4 s

12/100

10%

TBT (Total Blocking Time)

Value430 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0.193

64/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

rakucheck.jp

542 ms

rakucheck.jp

683 ms

hyouji

169 ms

hyouji

167 ms

338 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 94% of them (34 requests) were addressed to the original Rakucheck.jp, 6% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Rakucheck.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 178.4 kB (18%)

Content Size

1.0 MB

After Optimization

829.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rakucheck.jp main page is 1.0 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. 25% of websites need less resources to load. Images take 843.1 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 18.1 kB

  • Original 23.8 kB
  • After minification 19.7 kB
  • After compression 5.7 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. This page needs HTML code to be minified as it can gain 4.1 kB, which is 17% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 18.1 kB or 76% of the original size.

Image Optimization

-7%

Potential reduce by 61.6 kB

  • Original 843.1 kB
  • After minification 781.6 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. Rakucheck images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 69.1 kB

  • Original 105.7 kB
  • After minification 103.8 kB
  • After compression 36.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 69.1 kB or 65% of the original size.

CSS Optimization

-84%

Potential reduce by 29.6 kB

  • Original 35.3 kB
  • After minification 25.7 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. Rakucheck.jp needs all CSS files to be minified and compressed as it can save up to 29.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (26%)

Requests Now

31

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rakucheck. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

rakucheck.jp

rakucheck.jp

542 ms

rakucheck.jp

rakucheck.jp

683 ms

hyouji

hyouji

169 ms

hyouji

hyouji

167 ms

338 ms

jquery-1.10.1.min.js

jquery-1.10.1.min.js

500 ms

style.css

style.css

669 ms

default.css

default.css

509 ms

lightbox.css

lightbox.css

510 ms

smartRollover.js

smartRollover.js

518 ms

scroll.js

scroll.js

518 ms

footerFixed.js

footerFixed.js

666 ms

accordion.js

accordion.js

667 ms

lightbox.min.js

lightbox.min.js

670 ms

user.js

user.js

691 ms

gtm.js

gtm.js

129 ms

close.png

close.png

225 ms

loading.gif

loading.gif

225 ms

prev.png

prev.png

226 ms

next.png

next.png

226 ms

logo.png

logo.png

224 ms

lb_logo.png

lb_logo.png

225 ms

top_image3.png

top_image3.png

1004 ms

top_image_01.png

top_image_01.png

670 ms

icon_1.png

icon_1.png

338 ms

icon_3.png

icon_3.png

337 ms

icon_8.png

icon_8.png

347 ms

to_link.png

to_link.png

347 ms

checker01.jpg

checker01.jpg

670 ms

checker02.jpg

checker02.jpg

672 ms

checker03.jpg

checker03.jpg

693 ms

checker04.jpg

checker04.jpg

693 ms

icon_5.png

icon_5.png

837 ms

icon_4.png

icon_4.png

837 ms

icon_6.png

icon_6.png

839 ms

js

js

58 ms

Accessibility Review

rakucheck.jp accessibility score

95

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

rakucheck.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

rakucheck.jp SEO score

91

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

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

    JA

  • Encoding

    UTF-8

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

rakucheck.jp

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