Tools & Wizards About Us
denkosya.co.jp screenshot

Report Summary

  • 87

    Performance

    Renders faster than
    90% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

denkosya.co.jp

有限会社電広社 東京都葛飾区 看板 ディスプレイ サイン 製作 施工

Page Load Speed

3.4 sec in total

First Response

568 ms

Resources Loaded

2.7 sec

Page Rendered

128 ms

denkosya.co.jp screenshot

About Website

Click here to check amazing Denkosya content. Otherwise, check out these important facts you probably never knew about denkosya.co.jp

東京都葛飾区にある有限会社電広社は、看板・ディスプレイ・サインなどの製作、施工を行っている会社です。経験豊富な経験と知識をいかし、お客様のご要望に叶う製品をお作りいたします。お困りは電広社にご相談ください。

Visit denkosya.co.jp

Key Findings

We analyzed Denkosya.co.jp page load time and found that the first response time was 568 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

denkosya.co.jp performance score

87

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

51/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.3 s

100/100

10%

Network Requests Diagram

denkosya.co.jp

568 ms

www.denkosya.co.jp

653 ms

hpbparts.css

621 ms

container_1B_2c_left.css

461 ms

main_1B_2c.css

693 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Denkosya.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (909 ms) belongs to the original domain Denkosya.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 82.8 kB (35%)

Content Size

235.0 kB

After Optimization

152.2 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Denkosya.co.jp main page is 235.0 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. Only 5% of websites need less resources to load. Images take 193.9 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 3.9 kB

  • Original 5.7 kB
  • After minification 4.1 kB
  • After compression 1.7 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 1.5 kB, which is 27% 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 3.9 kB or 69% of the original size.

Image Optimization

-24%

Potential reduce by 47.4 kB

  • Original 193.9 kB
  • After minification 146.5 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, Denkosya needs image optimization as it can save up to 47.4 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-89%

Potential reduce by 31.5 kB

  • Original 35.3 kB
  • After minification 22.3 kB
  • After compression 3.9 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. Denkosya.co.jp needs all CSS files to be minified and compressed as it can save up to 31.5 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (18%)

Requests Now

17

After Optimization

14

  • Images
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Denkosya. 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 CSS and as a result speed up the page load time.

Network Requests Diagram

denkosya.co.jp

denkosya.co.jp

568 ms

www.denkosya.co.jp

www.denkosya.co.jp

653 ms

hpbparts.css

hpbparts.css

621 ms

container_1B_2c_left.css

container_1B_2c_left.css

461 ms

main_1B_2c.css

main_1B_2c.css

693 ms

user.css

user.css

363 ms

bg_1B_01_01.png

bg_1B_01_01.png

163 ms

fbg_1B.png

fbg_1B.png

179 ms

logo_1B.png

logo_1B.png

175 ms

top_mainimg_1B_01.png

top_mainimg_1B_01.png

773 ms

indexBg_1B.png

indexBg_1B.png

183 ms

point_1B.png

point_1B.png

820 ms

returnTop_1B.png

returnTop_1B.png

356 ms

navbg_1B_01.png

navbg_1B_01.png

540 ms

navitembg_1B_01.png

navitembg_1B_01.png

365 ms

navitemabg_1B_01.png

navitemabg_1B_01.png

738 ms

top_banner_1B_01.png

top_banner_1B_01.png

707 ms

top_banner_1B_03.png

top_banner_1B_03.png

909 ms

fpoint_1B.png

fpoint_1B.png

718 ms

Accessibility Review

denkosya.co.jp accessibility score

93

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.

Best Practices

denkosya.co.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

denkosya.co.jp SEO score

64

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Denkosya.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 Denkosya.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

denkosya.co.jp

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