Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

diatecs.jp

株式会社ダイアテックス | 東京都 | 江東区 | オフィス移転|レイアウト変更 | OA機器・オフィス用品販売 |トータルオフィスソリューション |株式会社ダイアテックス | 東京都 | OA機器・オフィス用品販売 |オフィス家具販売|オフィスリペア|改修|修繕

Page Load Speed

4.4 sec in total

First Response

532 ms

Resources Loaded

3.7 sec

Page Rendered

228 ms

diatecs.jp screenshot

About Website

Click here to check amazing Diatecs content. Otherwise, check out these important facts you probably never knew about diatecs.jp

オフィス移転・レイアウト変更・改修・補修・オフィス用品の購入・コピー機・複合機購入はダイアテックスにお任せ下さい。

Visit diatecs.jp

Key Findings

We analyzed Diatecs.jp page load time and found that the first response time was 532 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

diatecs.jp performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

5/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

diatecs.jp

532 ms

www.diatecs.jp

1051 ms

default.css

330 ms

design.css

332 ms

hmenu.css

336 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 94% of them (49 requests) were addressed to the original Diatecs.jp, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Diatecs.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 366.1 kB (37%)

Content Size

988.8 kB

After Optimization

622.7 kB

In fact, the total size of Diatecs.jp main page is 988.8 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. 35% of websites need less resources to load. Images take 626.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 23.8 kB

  • Original 29.1 kB
  • After minification 20.1 kB
  • After compression 5.3 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 9.0 kB, which is 31% 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 23.8 kB or 82% of the original size.

Image Optimization

-13%

Potential reduce by 80.4 kB

  • Original 626.4 kB
  • After minification 546.0 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. Obviously, Diatecs needs image optimization as it can save up to 80.4 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-78%

Potential reduce by 226.2 kB

  • Original 291.6 kB
  • After minification 187.0 kB
  • After compression 65.4 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 226.2 kB or 78% of the original size.

CSS Optimization

-86%

Potential reduce by 35.7 kB

  • Original 41.7 kB
  • After minification 28.8 kB
  • After compression 6.0 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. Diatecs.jp needs all CSS files to be minified and compressed as it can save up to 35.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (57%)

Requests Now

49

After Optimization

21

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Diatecs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

diatecs.jp accessibility score

59

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

diatecs.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

diatecs.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

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Diatecs.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 Diatecs.jp main page’s claimed encoding is euc-jp. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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