Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    34% of websites

  • 88

    SEO

    Google-friendlier than
    71% of websites

kadenkaitori-co.jp

家電の買取商品一覧|スマホ・携帯・家電・電化製品・日用品・Amazonギフト券の買取なら買取商店

Page Load Speed

6 sec in total

First Response

868 ms

Resources Loaded

4.6 sec

Page Rendered

535 ms

kadenkaitori-co.jp screenshot

About Website

Welcome to kadenkaitori-co.jp homepage info - get ready to check Kadenkaitori Co best content for Japan right away, or after learning these important things about kadenkaitori-co.jp

スマートフォン(スマホ)の買取、白ロム携帯電話の買取、家電や電化製品の買取、日用品の買取なら買取商店にお任せ下さい!店頭買取は、新宿区の新大久保の本店と秋葉原店、池袋店、川口店お問い合わせはこちらから。家電の買取商品一覧のページです。

Visit kadenkaitori-co.jp

Key Findings

We analyzed Kadenkaitori-co.jp page load time and found that the first response time was 868 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

kadenkaitori-co.jp performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value8.7 s

1/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

kadenkaitori-co.jp

868 ms

k_global.css

324 ms

index.css

335 ms

analytics.js

42 ms

k_lin.png

716 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 87% of them (78 requests) were addressed to the original Kadenkaitori-co.jp, 4% (4 requests) were made to Platform.twitter.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Kadenkaitori-co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 641.1 kB (44%)

Content Size

1.5 MB

After Optimization

810.5 kB

In fact, the total size of Kadenkaitori-co.jp main page is 1.5 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 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 14.9 kB

  • Original 19.3 kB
  • After minification 16.3 kB
  • After compression 4.4 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. This page needs HTML code to be minified as it can gain 2.9 kB, which is 15% 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 14.9 kB or 77% of the original size.

Image Optimization

-44%

Potential reduce by 612.4 kB

  • Original 1.4 MB
  • After minification 783.7 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. Obviously, Kadenkaitori Co needs image optimization as it can save up to 612.4 kB or 44% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 57 B

  • Original 20.0 kB
  • After minification 20.0 kB
  • After compression 19.9 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.

CSS Optimization

-85%

Potential reduce by 13.7 kB

  • Original 16.2 kB
  • After minification 14.2 kB
  • After compression 2.5 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. Kadenkaitori-co.jp needs all CSS files to be minified and compressed as it can save up to 13.7 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (15%)

Requests Now

89

After Optimization

76

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kadenkaitori Co. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kadenkaitori-co.jp accessibility score

75

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Links do not have a discernible name

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

kadenkaitori-co.jp best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

kadenkaitori-co.jp SEO score

88

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 Kadenkaitori-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 Kadenkaitori-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

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