Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

dengen-cafe.com

DENGENCAFE | 電源カフェ(充電コンセント、Wi-Fi等)現在地、目的地近くのスポット検索サイト

Page Load Speed

23.1 sec in total

First Response

8.6 sec

Resources Loaded

14.3 sec

Page Rendered

199 ms

dengen-cafe.com screenshot

About Website

Click here to check amazing DENGENCAFE content for Japan. Otherwise, check out these important facts you probably never knew about dengen-cafe.com

電源(コンセント)が使えるカフェを探せる電源カフェ専用ポータルサイト。 ノマドワーカーに必要な、Wi-Fiの有無やお店の混雑具合、電源口数も掲載。

Visit dengen-cafe.com

Key Findings

We analyzed Dengen-cafe.com page load time and found that the first response time was 8.6 sec and then it took 14.5 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

dengen-cafe.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value2,000 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.517

15/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

dengen-cafe.com

8596 ms

searchforms.css

373 ms

widget.css

406 ms

theme-my-login.css

407 ms

styles.css

406 ms

Our browser made a total of 144 requests to load all elements on the main page. We found that 44% of them (64 requests) were addressed to the original Dengen-cafe.com, 6% (9 requests) were made to Ums.adtechjp.com and 4% (6 requests) were made to Adm.shinobi.jp. The less responsive or slowest element that took the longest time to load (8.6 sec) belongs to the original domain Dengen-cafe.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 749.1 kB (64%)

Content Size

1.2 MB

After Optimization

429.9 kB

In fact, the total size of Dengen-cafe.com main page is 1.2 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. 45% of websites need less resources to load. HTML takes 386.5 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 346.7 kB

  • Original 386.5 kB
  • After minification 287.8 kB
  • After compression 39.8 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 98.8 kB, which is 26% 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 346.7 kB or 90% of the original size.

Image Optimization

-12%

Potential reduce by 33.3 kB

  • Original 286.4 kB
  • After minification 253.1 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, DENGENCAFE needs image optimization as it can save up to 33.3 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 195.3 kB

  • Original 304.7 kB
  • After minification 284.1 kB
  • After compression 109.4 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 195.3 kB or 64% of the original size.

CSS Optimization

-86%

Potential reduce by 173.7 kB

  • Original 201.3 kB
  • After minification 185.6 kB
  • After compression 27.6 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. Dengen-cafe.com needs all CSS files to be minified and compressed as it can save up to 173.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 91 (71%)

Requests Now

129

After Optimization

38

The browser has sent 129 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DENGENCAFE. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 42 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dengen-cafe.com accessibility score

72

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

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.

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

dengen-cafe.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

dengen-cafe.com SEO score

92

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

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

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