Tools & Wizards About Us
tdh.ac.jp screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

tdh.ac.jp

歯科衛生士学校｜東京歯科衛生専門学校

Page Load Speed

7.1 sec in total

First Response

966 ms

Resources Loaded

6 sec

Page Rendered

163 ms

tdh.ac.jp screenshot

About Website

Visit tdh.ac.jp now to see the best up-to-date Tdh content for Japan and also check out these interesting facts you probably never knew about tdh.ac.jp

東京歯科衛生専門学校は都内トップの学習環境・教育環境で歯科衛生士を養成する就職率100％の歯科衛生士専門学校

Visit tdh.ac.jp

Key Findings

We analyzed Tdh.ac.jp page load time and found that the first response time was 966 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

tdh.ac.jp performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value12.1 s

4/100

10%

TBT (Total Blocking Time)

Value1,240 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

Network Requests Diagram

tdh.ac.jp

966 ms

style.css

882 ms

jquery.js

1933 ms

jquery.droppy.js

383 ms

shadowbox.js

602 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 86% of them (50 requests) were addressed to the original Tdh.ac.jp, 3% (2 requests) were made to Google-analytics.com and 3% (2 requests) were made to Googleadservices.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Tdh.ac.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 471.9 kB (38%)

Content Size

1.2 MB

After Optimization

767.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tdh.ac.jp 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. 20% of websites need less resources to load. Images take 773.3 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.3 kB

  • Original 31.5 kB
  • After minification 25.0 kB
  • After compression 7.2 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 6.5 kB, which is 21% 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 24.3 kB or 77% of the original size.

Image Optimization

-15%

Potential reduce by 115.6 kB

  • Original 773.3 kB
  • After minification 657.7 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, Tdh needs image optimization as it can save up to 115.6 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-75%

Potential reduce by 283.2 kB

  • Original 378.2 kB
  • After minification 248.0 kB
  • After compression 95.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 283.2 kB or 75% of the original size.

CSS Optimization

-87%

Potential reduce by 48.8 kB

  • Original 56.1 kB
  • After minification 43.7 kB
  • After compression 7.3 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. Tdh.ac.jp needs all CSS files to be minified and compressed as it can save up to 48.8 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (64%)

Requests Now

55

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tdh. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

tdh.ac.jp

tdh.ac.jp

966 ms

style.css

style.css

882 ms

jquery.js

jquery.js

1933 ms

jquery.droppy.js

jquery.droppy.js

383 ms

shadowbox.js

shadowbox.js

602 ms

shadowbox.css

shadowbox.css

421 ms

heightLine.js

heightLine.js

749 ms

script.js

script.js

758 ms

marquee.js

marquee.js

799 ms

jquery.powertip.js

jquery.powertip.js

1401 ms

jquery.powertip.css

jquery.powertip.css

1086 ms

musicflash_header.js

musicflash_header.js

953 ms

flash.js

flash.js

1059 ms

copyright.js

copyright.js

887 ms

urchin.js

urchin.js

6 ms

googleanalytics.js

googleanalytics.js

1050 ms

conversion.js

conversion.js

19 ms

sizzle.js

sizzle.js

205 ms

shadowbox-en.js

shadowbox-en.js

332 ms

shadowbox-img.js

shadowbox-img.js

353 ms

shadowbox-html.js

shadowbox-html.js

359 ms

shadowbox-iframe.js

shadowbox-iframe.js

357 ms

shadowbox-qt.js

shadowbox-qt.js

403 ms

shadowbox-wmp.js

shadowbox-wmp.js

619 ms

swfobject.js

swfobject.js

846 ms

shadowbox-swf.js

shadowbox-swf.js

708 ms

shadowbox-flv.js

shadowbox-flv.js

707 ms

shadowbox-jquery.js

shadowbox-jquery.js

759 ms

whitebase_sideend_blackshadow.png

whitebase_sideend_blackshadow.png

334 ms

site-title.png

site-title.png

333 ms

header-nav.png

header-nav.png

357 ms

bt_dp04Baw.gif

bt_dp04Baw.gif

362 ms

index.png

index.png

2009 ms

information.gif

information.gif

404 ms

jasrac.png

jasrac.png

705 ms

QRcode.gif

QRcode.gif

746 ms

best-shingaku.gif

best-shingaku.gif

735 ms

header_sound-flash.png

header_sound-flash.png

752 ms

global-nav.png

global-nav.png

796 ms

gradient_gray.png

gradient_gray.png

1453 ms

blackarrow_in_whitesquare.gif

blackarrow_in_whitesquare.gif

1447 ms

redarrow.gif

redarrow.gif

1448 ms

side-menu.png

side-menu.png

2434 ms

photo-banner.png

photo-banner.png

2298 ms

offer_download_img.png

offer_download_img.png

1773 ms

redarrow_in_whitesquare.gif

redarrow_in_whitesquare.gif

1473 ms

red_circle.gif

red_circle.gif

1480 ms

visit_to_school.png

visit_to_school.png

2273 ms

telemail.png

telemail.png

2343 ms

__utm.gif

__utm.gif

4 ms

42 ms

ca.js

ca.js

774 ms

55 ms

39 ms

tracking_refere.php

tracking_refere.php

635 ms

741 ms

carender_left_arrow.jpg

carender_left_arrow.jpg

915 ms

carender_right_arrow.jpg

carender_right_arrow.jpg

1118 ms

Accessibility Review

tdh.ac.jp accessibility score

75

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best Practices

tdh.ac.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

tdh.ac.jp SEO score

77

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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 Tdh.ac.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 Tdh.ac.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

tdh.ac.jp

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