Tools & Wizards About Us
donbla.co.jp screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

donbla.co.jp

donbla. [ドンブラ] - 倉敷の生活＆子育て応援情報サイト(子育て・クーポン・口コミ・グルメ情報満載)

Page Load Speed

10.2 sec in total

First Response

1.7 sec

Resources Loaded

7.5 sec

Page Rendered

922 ms

donbla.co.jp screenshot

About Website

Click here to check amazing Donbla content for Japan. Otherwise, check out these important facts you probably never knew about donbla.co.jp

倉敷のクーポン情報や地域情報、子育て情報サイトdonbla.[ドンブラ]。グルメ・美容・イベント情報などを主要エリア別に写真や口コミ満載でお店をご紹介。登録ユーザー同士のおしゃべり広場｢ドンコミュ｣も必見。倉敷地域No.1のクーポンサイト。

Visit donbla.co.jp

Key Findings

We analyzed Donbla.co.jp page load time and found that the first response time was 1.7 sec and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

donbla.co.jp performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value9.0 s

1/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value840 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.18

67/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

donbla.co.jp

1725 ms

common.css

533 ms

index.css

697 ms

jquery.js

919 ms

default.css

358 ms

Our browser made a total of 174 requests to load all elements on the main page. We found that 82% of them (142 requests) were addressed to the original Donbla.co.jp, 9% (15 requests) were made to Scontent.xx.fbcdn.net and 6% (10 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Donbla.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 201.4 kB (16%)

Content Size

1.3 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Donbla.co.jp main page is 1.3 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. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 60.7 kB

  • Original 71.1 kB
  • After minification 52.0 kB
  • After compression 10.4 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. This page needs HTML code to be minified as it can gain 19.2 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 60.7 kB or 85% of the original size.

Image Optimization

-6%

Potential reduce by 58.4 kB

  • Original 1.0 MB
  • After minification 989.1 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. Donbla images are well optimized though.

JavaScript Optimization

-36%

Potential reduce by 41.0 kB

  • Original 113.8 kB
  • After minification 111.5 kB
  • After compression 72.8 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 41.0 kB or 36% of the original size.

CSS Optimization

-85%

Potential reduce by 41.3 kB

  • Original 48.7 kB
  • After minification 34.3 kB
  • After compression 7.4 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. Donbla.co.jp needs all CSS files to be minified and compressed as it can save up to 41.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (20%)

Requests Now

173

After Optimization

139

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 173 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Donbla. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

donbla.co.jp

donbla.co.jp

1725 ms

common.css

common.css

533 ms

index.css

index.css

697 ms

jquery.js

jquery.js

919 ms

default.css

default.css

358 ms

nivo-slider.css

nivo-slider.css

363 ms

style.css

style.css

536 ms

jsapi

jsapi

152 ms

jquery.nivo.slider.pack.js

jquery.nivo.slider.pack.js

915 ms

slide_conf.js

slide_conf.js

557 ms

top_slideshow.js

top_slideshow.js

1176 ms

heightLine.js

heightLine.js

888 ms

index2.css

index2.css

750 ms

sidebar.css

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181 ms

genre.css

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255 ms

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360 ms

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19 ms

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226 ms

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544 ms

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1452 ms

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1064 ms

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1803 ms

sideButton.png

sideButton.png

1287 ms

sideBanner.jpg

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1290 ms

likebox.php

likebox.php

528 ms

ga.js

ga.js

76 ms

genre_navicon9.gif

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1711 ms

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22 ms

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94 ms

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170 ms

top_commu_title.gif

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1482 ms

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264 ms

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1307 ms

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1169 ms

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186 ms

Accessibility Review

donbla.co.jp accessibility score

80

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.

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

Best Practices

donbla.co.jp best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

donbla.co.jp SEO score

97

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

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 Donbla.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 Donbla.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

donbla.co.jp

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