Tools & Wizards About Us
covearth.co.jp screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

covearth.co.jp

家具インテリアの通販専門店カヴァース【送料無料】

Page Load Speed

51.7 sec in total

First Response

41 ms

Resources Loaded

51 sec

Page Rendered

665 ms

covearth.co.jp screenshot

About Website

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

家具やインテリアのご購入をお考えなら、通販専門店のカヴァースにお任せください。お客様の幸せなお部屋作りをご支援いたします。

Visit covearth.co.jp

Key Findings

We analyzed Covearth.co.jp page load time and found that the first response time was 41 ms and then it took 51.7 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.

Performance Metrics

covearth.co.jp performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value11.1 s

6/100

10%

TBT (Total Blocking Time)

Value5,020 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.161

73/100

15%

TTI (Time to Interactive)

Value23.8 s

1/100

10%

Network Requests Diagram

covearth.co.jp

41 ms

www.covearth.co.jp

20 ms

www.covearth.co.jp

1220 ms

colorbox.css

567 ms

reset.css

38 ms

Our browser made a total of 584 requests to load all elements on the main page. We found that 84% of them (492 requests) were addressed to the original Covearth.co.jp, 3% (18 requests) were made to App.chatplus.jp and 2% (10 requests) were made to Covearth.ec-optimizer.com. The less responsive or slowest element that took the longest time to load (7.3 sec) belongs to the original domain Covearth.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 675.7 kB (7%)

Content Size

10.0 MB

After Optimization

9.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Covearth.co.jp main page is 10.0 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. Only a small number of websites need less resources to load. Images take 9.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 260.9 kB

  • Original 309.0 kB
  • After minification 306.8 kB
  • After compression 48.1 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 260.9 kB or 84% of the original size.

Image Optimization

-4%

Potential reduce by 346.1 kB

  • Original 9.1 MB
  • After minification 8.8 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. Covearth images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 63.3 kB

  • Original 377.7 kB
  • After minification 377.6 kB
  • After compression 314.4 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 63.3 kB or 17% of the original size.

CSS Optimization

-4%

Potential reduce by 5.3 kB

  • Original 147.4 kB
  • After minification 147.4 kB
  • After compression 142.1 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. Covearth.co.jp has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 127 (22%)

Requests Now

569

After Optimization

442

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 569 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Covearth. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 53 to 1 for JavaScripts and from 36 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

covearth.co.jp

covearth.co.jp

41 ms

www.covearth.co.jp

www.covearth.co.jp

20 ms

www.covearth.co.jp

www.covearth.co.jp

1220 ms

colorbox.css

colorbox.css

567 ms

reset.css

reset.css

38 ms

common.css

common.css

731 ms

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47 ms

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Accessibility Review

covearth.co.jp accessibility score

86

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

covearth.co.jp best practices score

58

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

covearth.co.jp SEO score

79

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    JA

  • Encoding

    UTF-8

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

covearth.co.jp

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