Tools & Wizards About Us

Report Summary

  • 96

    Performance

    Renders faster than
    94% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

denshi-trade.co.jp

電子通商のホームページ (デンシ電気店 web本店) : オートソック・ペルチェ素子・ソーラーセル・電子工作キット・ヒューズ・電子部品・計測器・工具など。輸入・開発・販売

Page Load Speed

5.1 sec in total

First Response

892 ms

Resources Loaded

4.1 sec

Page Rendered

99 ms

About Website

Click here to check amazing Denshi Trade content for Japan. Otherwise, check out these important facts you probably never knew about denshi-trade.co.jp

オートソック・ペルチェ素子・ソーラーセル・ヒートパイプ・電子工作キット・ヒューズ：輸入・開発・販売の電子通商（株）の通信販売サイト。特殊電子部品や特殊電子機器の開発も行います。

Visit denshi-trade.co.jp

Key Findings

We analyzed Denshi-trade.co.jp page load time and found that the first response time was 892 ms and then it took 4.2 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

denshi-trade.co.jp performance score

96

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

denshi-trade.co.jp

892 ms

ga.js

11 ms

denshi-1.jpg

3402 ms

p_lis020.gif

337 ms

__utm.gif

12 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 71% of them (5 requests) were addressed to the original Denshi-trade.co.jp, 29% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Denshi-trade.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 6.9 kB (5%)

Content Size

149.9 kB

After Optimization

143.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Denshi-trade.co.jp main page is 149.9 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 125.1 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 5.2 kB

  • Original 7.6 kB
  • After minification 7.4 kB
  • After compression 2.4 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. 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 5.2 kB or 68% of the original size.

Image Optimization

-1%

Potential reduce by 1.7 kB

  • Original 125.1 kB
  • After minification 123.4 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. Denshi Trade images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • Images
  • JavaScript

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Denshi Trade. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

denshi-trade.co.jp accessibility score

63

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

Best Practices

denshi-trade.co.jp 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

SEO Factors

denshi-trade.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

Page is blocked from indexing

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

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Denshi-trade.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 Denshi-trade.co.jp main page’s claimed encoding is shift_jis. 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 Denshi Trade. 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: