Tools & Wizards About Us

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

elze.co.jp

株式会社エルゼ：コーポレートサイト

Page Load Speed

4.7 sec in total

First Response

1.1 sec

Resources Loaded

3.4 sec

Page Rendered

166 ms

About Website

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

株式会社エルゼのコーポレートサイトです。クリーニング事業、レンタルマット・レンタルモップなどのダストコントロール事業、ウォータースタンドやクリクラなどのウォーターサービス事業を行なっています。

Visit elze.co.jp

Key Findings

We analyzed Elze.co.jp page load time and found that the first response time was 1.1 sec and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

elze.co.jp performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value220 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value6.6 s

57/100

10%

Network Requests Diagram

elze.co.jp

1125 ms

setting.css

173 ms

top.css

342 ms

jquery.bxslider.css

344 ms

jquery-1.9.1.min.js

709 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 97% of them (36 requests) were addressed to the original Elze.co.jp, 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Elze.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 17.3 kB (3%)

Content Size

524.1 kB

After Optimization

506.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Elze.co.jp main page is 524.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 458.0 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 14.4 kB

  • Original 19.5 kB
  • After minification 17.4 kB
  • After compression 5.1 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. This page needs HTML code to be minified as it can gain 2.2 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 14.4 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 458.0 kB
  • After minification 458.0 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. Elze images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 1.2 kB

  • Original 40.2 kB
  • After minification 40.2 kB
  • After compression 39.0 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

-27%

Potential reduce by 1.7 kB

  • Original 6.4 kB
  • After minification 6.4 kB
  • After compression 4.6 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. Elze.co.jp needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (44%)

Requests Now

34

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Elze. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

elze.co.jp accessibility score

74

Accessibility Issues

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

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>).

Best Practices

elze.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

elze.co.jp SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

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 Elze.co.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 Elze.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 data is detected on the main page of Elze. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: