Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

bestcarton.com

ダンボールの通販・購入・販売なら格安で業界No.1【アースダンボール】公式

Page Load Speed

12.4 sec in total

First Response

523 ms

Resources Loaded

11.4 sec

Page Rendered

473 ms

bestcarton.com screenshot

About Website

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

ダンボール通販総合1位のアースダンボール運営サイト「ダンボールA(エース)」なら世界トップレベルの品揃えで1箱3.5円(税抜)から購入可能!特価品最大66%割引!ダンボール箱買い合わせ機能で最もお安くダンボールをご購入頂けます。IoT最新設備の自社工場生産でお客様の信頼に最速で応えます。

Visit bestcarton.com

Key Findings

We analyzed Bestcarton.com page load time and found that the first response time was 523 ms and then it took 11.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

bestcarton.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value17.5 s

0/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.141

78/100

15%

TTI (Time to Interactive)

Value25.0 s

0/100

10%

Network Requests Diagram

bestcarton.com

523 ms

www.bestcarton.com

1263 ms

index.css

472 ms

head.css

479 ms

dc.js

199 ms

Our browser made a total of 184 requests to load all elements on the main page. We found that 86% of them (159 requests) were addressed to the original Bestcarton.com, 7% (12 requests) were made to Scontent-iad3-1.xx.fbcdn.net and 5% (10 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Bestcarton.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 428.7 kB (20%)

Content Size

2.1 MB

After Optimization

1.7 MB

In fact, the total size of Bestcarton.com main page is 2.1 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. 65% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 76.0 kB

  • Original 96.8 kB
  • After minification 92.3 kB
  • After compression 20.9 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 76.0 kB or 78% of the original size.

Image Optimization

-16%

Potential reduce by 299.6 kB

  • Original 1.9 MB
  • After minification 1.6 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. Obviously, Bestcarton needs image optimization as it can save up to 299.6 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-26%

Potential reduce by 6.8 kB

  • Original 26.1 kB
  • After minification 25.5 kB
  • After compression 19.2 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 6.8 kB or 26% of the original size.

CSS Optimization

-83%

Potential reduce by 46.3 kB

  • Original 55.5 kB
  • After minification 45.8 kB
  • After compression 9.2 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. Bestcarton.com needs all CSS files to be minified and compressed as it can save up to 46.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (16%)

Requests Now

182

After Optimization

152

The browser has sent 182 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bestcarton. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bestcarton.com accessibility score

63

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

Image elements do not have [alt] attributes

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

bestcarton.com best practices score

75

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

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

bestcarton.com SEO score

84

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 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 Bestcarton.com 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 Bestcarton.com 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 Bestcarton. 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: