Report Summary

  • 25

    Performance

    Renders faster than
    45% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

sunrefre.jp

交換できるくん|トイレ、ビルトインコンロ、食洗機、給湯器が安い

Page Load Speed

20.2 sec in total

First Response

593 ms

Resources Loaded

16.3 sec

Page Rendered

3.3 sec

sunrefre.jp screenshot

About Website

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

給湯器・ビルトインコンロ・IHクッキングヒーター・ビルトイン食洗機・トイレ(ウォシュレット)・蛇口(水栓)や浴室乾燥機などの交換・取替え・買い替えを特価・割引価格でご提供できる通販サイト「交換できるくん」。メーカー正規品のみの取り扱いだから安心。「早くて」「高品質」「安心」な工事をご提供しております。

Visit sunrefre.jp

Key Findings

We analyzed Sunrefre.jp page load time and found that the first response time was 593 ms and then it took 19.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

sunrefre.jp performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value990 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.065

97/100

15%

TTI (Time to Interactive)

Value16.3 s

5/100

10%

Network Requests Diagram

sunrefre.jp

593 ms

www.sunrefre.jp

765 ms

pandora.css

441 ms

selectcheck.js

364 ms

jquery-1.4.2.js

739 ms

Our browser made a total of 270 requests to load all elements on the main page. We found that 67% of them (180 requests) were addressed to the original Sunrefre.jp, 6% (16 requests) were made to Pixel.mathtag.com and 4% (10 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Sunrefre.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 599.2 kB (14%)

Content Size

4.3 MB

After Optimization

3.7 MB

In fact, the total size of Sunrefre.jp main page is 4.3 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. 55% of websites need less resources to load. Images take 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 65.4 kB

  • Original 83.1 kB
  • After minification 73.7 kB
  • After compression 17.8 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. This page needs HTML code to be minified as it can gain 9.4 kB, which is 11% 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 65.4 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 110.9 kB

  • Original 3.6 MB
  • After minification 3.5 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. Sunrefre images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 295.0 kB

  • Original 432.3 kB
  • After minification 360.2 kB
  • After compression 137.4 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 295.0 kB or 68% of the original size.

CSS Optimization

-86%

Potential reduce by 128.0 kB

  • Original 148.8 kB
  • After minification 112.7 kB
  • After compression 20.9 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. Sunrefre.jp needs all CSS files to be minified and compressed as it can save up to 128.0 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 101 (39%)

Requests Now

260

After Optimization

159

The browser has sent 260 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sunrefre. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sunrefre.jp accessibility score

92

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.

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

sunrefre.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

SEO Factors

sunrefre.jp SEO score

85

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

    N/A

  • Encoding

    UTF-8

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