Tools & Wizards About Us
dv-au.com screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

dv-au.com

大学の難易度・偏差値ランキング一覧＜2023版＞ | 当サイトは、日本全国の大学の難易度・偏差値ランキングを一覧表示することができる、国内でも数少ないサイトです。独自の機能として、偏差値や大学名、都道府県などをワンクリックで並び替えランキング表示が可能です。

Page Load Speed

5.9 sec in total

First Response

1.2 sec

Resources Loaded

4.2 sec

Page Rendered

491 ms

dv-au.com screenshot

About Website

Click here to check amazing Dv Au content for Japan. Otherwise, check out these important facts you probably never knew about dv-au.com

都道府県ごとに大学偏差値を一覧で表示 都道府県ごとの大学偏差値ランキングを見たい場合は、都道府県別のランキングも作成しましたので、調べたい都道府県をクリックしてランキングを表示できるようにしました。 国公立や私立区分別の偏差値ランキング ス

Visit dv-au.com

Key Findings

We analyzed Dv-au.com page load time and found that the first response time was 1.2 sec and then it took 4.7 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

dv-au.com performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

18/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value2,800 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

www.dv-au.com

1193 ms

style.css

662 ms

default.min.css

498 ms

jquery.js

1193 ms

jquery-migrate.min.js

541 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 21% of them (13 requests) were addressed to the original Dv-au.com, 11% (7 requests) were made to Apis.google.com and 8% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Dv-au.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 311.6 kB (59%)

Content Size

527.8 kB

After Optimization

216.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dv-au.com main page is 527.8 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. 65% of websites need less resources to load. Javascripts take 439.4 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 30.2 kB

  • Original 41.7 kB
  • After minification 40.2 kB
  • After compression 11.4 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 30.2 kB or 73% of the original size.

Image Optimization

-12%

Potential reduce by 1.1 kB

  • Original 9.0 kB
  • After minification 7.9 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, Dv Au needs image optimization as it can save up to 1.1 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

-57%

Potential reduce by 250.4 kB

  • Original 439.4 kB
  • After minification 426.8 kB
  • After compression 188.9 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 250.4 kB or 57% of the original size.

CSS Optimization

-79%

Potential reduce by 29.8 kB

  • Original 37.7 kB
  • After minification 28.7 kB
  • After compression 7.9 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. Dv-au.com needs all CSS files to be minified and compressed as it can save up to 29.8 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (65%)

Requests Now

60

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dv Au. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.dv-au.com

www.dv-au.com

1193 ms

style.css

style.css

662 ms

default.min.css

default.min.css

498 ms

jquery.js

jquery.js

1193 ms

jquery-migrate.min.js

jquery-migrate.min.js

541 ms

adsbygoogle.js

adsbygoogle.js

7 ms

widgets.js

widgets.js

84 ms

plusone.js

plusone.js

103 ms

bookmark_button.js

bookmark_button.js

350 ms

jquery.datatables.min.js

jquery.datatables.min.js

1032 ms

wp-embed.min.js

wp-embed.min.js

182 ms

base.js

base.js

332 ms

s_retargeting.js

s_retargeting.js

565 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

674 ms

analytics.js

analytics.js

131 ms

1456813899111

1456813899111

619 ms

button-only.gif

button-only.gif

206 ms

cah3-bk.png

cah3-bk.png

205 ms

btn2.gif

btn2.gif

206 ms

collect

collect

32 ms

collect

collect

181 ms

ca-pub-0894789854906039.js

ca-pub-0894789854906039.js

170 ms

zrt_lookup.html

zrt_lookup.html

161 ms

show_ads_impl.js

show_ads_impl.js

87 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

99 ms

384 ms

htmlbanner

htmlbanner

371 ms

ads

ads

303 ms

ca3.png

ca3.png

299 ms

osd.js

osd.js

50 ms

like.php

like.php

502 ms

ads

ads

335 ms

tag.js

tag.js

211 ms

button.831500944bc3eb7ea5276ccdc3f71d2e.js

button.831500944bc3eb7ea5276ccdc3f71d2e.js

492 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

84 ms

fastbutton

fastbutton

226 ms

warning.png

warning.png

391 ms

m_js_controller.js

m_js_controller.js

129 ms

abg.js

abg.js

199 ms

reset.css

reset.css

91 ms

entry-button.css

entry-button.css

85 ms

1x1.gif

1x1.gif

459 ms

ce.gif

ce.gif

654 ms

tag

tag

68 ms

postmessageRelay

postmessageRelay

357 ms

vbutton-bg.png

vbutton-bg.png

27 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

412 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

260 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

243 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

241 ms

rU2ubZ6l1Q5.js

rU2ubZ6l1Q5.js

284 ms

s

s

211 ms

x_button_blue2.png

x_button_blue2.png

167 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

303 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

376 ms

api.js

api.js

165 ms

core:rpc:shindig.random:shindig.sha1.js

core:rpc:shindig.random:shindig.sha1.js

248 ms

2536007149-postmessagerelay.js

2536007149-postmessagerelay.js

236 ms

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

38 ms

tweet_button.6a78875565a912489e9aef879c881358.ja.html

tweet_button.6a78875565a912489e9aef879c881358.ja.html

137 ms

ya.js

ya.js

362 ms

ui

ui

51 ms

jot

jot

96 ms

Accessibility Review

dv-au.com accessibility score

85

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

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

Links do not have a discernible name

Best Practices

dv-au.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

dv-au.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

Links are not crawlable

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 Dv-au.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 Dv-au.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

dv-au.com

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