Tools & Wizards About Us
ktc-school.com screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

ktc-school.com

おおぞら高等学院 - おおぞら高校＝なりたい大人になるための学校

Page Load Speed

11.8 sec in total

First Response

367 ms

Resources Loaded

9.9 sec

Page Rendered

1.5 sec

ktc-school.com screenshot

About Website

Click here to check amazing Ktc School content for Japan. Otherwise, check out these important facts you probably never knew about ktc-school.com

おおぞら高校（おおぞら高等学院）では、転編入・新入学問わず、高卒資格の先にある未来を見据えて、生徒一人ひとりが描く「なりたい大人」をめざすためのさまざまな体験や環境を用意しています。

Visit ktc-school.com

Key Findings

We analyzed Ktc-school.com page load time and found that the first response time was 367 ms and then it took 11.5 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

ktc-school.com performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value12.5 s

0/100

25%

SI (Speed Index)

Value13.8 s

1/100

10%

TBT (Total Blocking Time)

Value4,870 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.131

81/100

15%

TTI (Time to Interactive)

Value73.9 s

0/100

10%

Network Requests Diagram

ktc-school.com

367 ms

www.ktc-school.com

705 ms

gtm.js

79 ms

hmr2zzh.js

178 ms

toppage.css

835 ms

Our browser made a total of 107 requests to load all elements on the main page. We found that 64% of them (68 requests) were addressed to the original Ktc-school.com, 7% (7 requests) were made to Fonts.gstatic.com and 5% (5 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (5.7 sec) belongs to the original domain Ktc-school.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (31%)

Content Size

4.1 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ktc-school.com main page is 4.1 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 55.1 kB

  • Original 75.2 kB
  • After minification 73.1 kB
  • After compression 20.2 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. 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 55.1 kB or 73% of the original size.

Image Optimization

-30%

Potential reduce by 1.2 MB

  • Original 3.9 MB
  • After minification 2.7 MB

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, Ktc School needs image optimization as it can save up to 1.2 MB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-32%

Potential reduce by 33.1 kB

  • Original 101.8 kB
  • After minification 101.8 kB
  • After compression 68.7 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 33.1 kB or 32% of the original size.

CSS Optimization

-1%

Potential reduce by 149 B

  • Original 26.2 kB
  • After minification 26.2 kB
  • After compression 26.0 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. Ktc-school.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (30%)

Requests Now

98

After Optimization

69

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ktc School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ktc-school.com

ktc-school.com

367 ms

www.ktc-school.com

www.ktc-school.com

705 ms

gtm.js

gtm.js

79 ms

hmr2zzh.js

hmr2zzh.js

178 ms

toppage.css

toppage.css

835 ms

smartbanner.min.css

smartbanner.min.css

696 ms

widgets.js

widgets.js

121 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

26 ms

smoothScroll.js

smoothScroll.js

692 ms

slick.min.js

slick.min.js

695 ms

lightbox.min.js

lightbox.min.js

693 ms

ofi.js

ofi.js

46 ms

smartbanner.min.js

smartbanner.min.js

691 ms

common_2018.js

common_2018.js

1717 ms

js

js

62 ms

analytics.js

analytics.js

376 ms

destination

destination

374 ms

destination

destination

374 ms

destination

destination

326 ms

fbevents.js

fbevents.js

527 ms

ytag.js

ytag.js

1207 ms

kitchen.juicer.cc

kitchen.juicer.cc

1206 ms

flipdesk_chat.js

flipdesk_chat.js

566 ms

cmt.js

cmt.js

1233 ms

core.min.js

core.min.js

566 ms

p.gif

p.gif

548 ms

mv_img_05_p-thumb-1200xauto-31814.jpg

mv_img_05_p-thumb-1200xauto-31814.jpg

1435 ms

mv_img_02_p-thumb-1200xauto-1177.jpg

mv_img_02_p-thumb-1200xauto-1177.jpg

1436 ms

mv_img_03_p-thumb-1200xauto-1179.jpg

mv_img_03_p-thumb-1200xauto-1179.jpg

1728 ms

mv_img_04_p-thumb-1200xauto-1181.jpg

mv_img_04_p-thumb-1200xauto-1181.jpg

1730 ms

batton_pc1.png

batton_pc1.png

2046 ms

nishiguchi_honbu-thumb-590xauto-48245.png

nishiguchi_honbu-thumb-590xauto-48245.png

2597 ms

coach_240318takasaki-thumb-590xauto-47411.jpg

coach_240318takasaki-thumb-590xauto-47411.jpg

2237 ms

coach_240308kaitanavi-thumb-590xauto-47208.jpg

coach_240308kaitanavi-thumb-590xauto-47208.jpg

2070 ms

coach_240301kyoto-thumb-590xauto-47167.jpg

coach_240301kyoto-thumb-590xauto-47167.jpg

2597 ms

coach_240216niigata-thumb-590xauto-46852.jpg

coach_240216niigata-thumb-590xauto-46852.jpg

2407 ms

coach_240209shizuoka-thumb-590xauto-46806.jpg

coach_240209shizuoka-thumb-590xauto-46806.jpg

2892 ms

8061d9829592fe2e52124deeee33c6296944ac13-thumb-300x300-48279.png

8061d9829592fe2e52124deeee33c6296944ac13-thumb-300x300-48279.png

3102 ms

40cea25886582a42be02778e69db966dc94278e0-thumb-300x300-48016.jpg

40cea25886582a42be02778e69db966dc94278e0-thumb-300x300-48016.jpg

2935 ms

f5bc460ed9edec4cb6c2fd6371b390b1344c3578-thumb-300x300-47441.png

f5bc460ed9edec4cb6c2fd6371b390b1344c3578-thumb-300x300-47441.png

3444 ms

e144033dbd8d6f62ca13d5a2e858dd5c1de03b9e-thumb-300x300-47404.png

e144033dbd8d6f62ca13d5a2e858dd5c1de03b9e-thumb-300x300-47404.png

3735 ms

logo_appli.png

logo_appli.png

3106 ms

qr_appli_ios.png

qr_appli_ios.png

3401 ms

badge_appstore.svg

badge_appstore.svg

3445 ms

qr_appli_android.png

qr_appli_android.png

3610 ms

badge_googleplay.png

badge_googleplay.png

3786 ms

appli_01.png

appli_01.png

4583 ms

appli_02.png

appli_02.png

4288 ms

appli_03.png

appli_03.png

4626 ms

appli_04.png

appli_04.png

4795 ms

appli_05.png

appli_05.png

4747 ms

appli_06.png

appli_06.png

4799 ms

appli_07.png

appli_07.png

5304 ms

section_06_img_01.png

section_06_img_01.png

5265 ms

6559542102e8755c4679b46afc6cc7f4823f0f17-thumb-170x170-48337.jpg

6559542102e8755c4679b46afc6cc7f4823f0f17-thumb-170x170-48337.jpg

5134 ms

collect

collect

70 ms

collect

collect

86 ms

240510akihabara01-thumb-170x170-48333.png

240510akihabara01-thumb-170x170-48333.png

5399 ms

0ac4ad2787a01b633f54af175301346ea59d6804-thumb-170x170-48332.jpg

0ac4ad2787a01b633f54af175301346ea59d6804-thumb-170x170-48332.jpg

5107 ms

20240510_090418-thumb-170x170-48323.jpg

20240510_090418-thumb-170x170-48323.jpg

5112 ms

IMG_4268-thumb-170x170-48320.jpg

IMG_4268-thumb-170x170-48320.jpg

5446 ms

bnr_oozorahai-thumb-640xauto-17262.gif

bnr_oozorahai-thumb-640xauto-17262.gif

5708 ms

ga-audiences

ga-audiences

25 ms

notosansjapanese.css

notosansjapanese.css

29 ms

bnr_yakushima-thumb-320x198-1364.jpg

bnr_yakushima-thumb-320x198-1364.jpg

5469 ms

sdk.js

sdk.js

223 ms

NotoSansJP-Regular.woff

NotoSansJP-Regular.woff

223 ms

NotoSansJP-Medium.woff

NotoSansJP-Medium.woff

302 ms

NotoSansJP-DemiLight.woff

NotoSansJP-DemiLight.woff

332 ms

NotoSansJP-Light.woff

NotoSansJP-Light.woff

478 ms

NotoSansJP-Thin.woff

NotoSansJP-Thin.woff

511 ms

NotoSansJP-Bold.woff

NotoSansJP-Bold.woff

510 ms

NotoSansJP-Black.woff

NotoSansJP-Black.woff

335 ms

sdk.js

sdk.js

192 ms

uiprepare

uiprepare

955 ms

bnr_message-thumb-640xauto-1365.jpg

bnr_message-thumb-640xauto-1365.jpg

4759 ms

bnr_kengakukai-thumb-640xauto-1366.gif

bnr_kengakukai-thumb-640xauto-1366.gif

4387 ms

ytag.js

ytag.js

182 ms

bnr_event.jpg

bnr_event.jpg

5129 ms

like.php

like.php

159 ms

TttXWwYVW0v.js

TttXWwYVW0v.js

27 ms

FEppCFCt76d.png

FEppCFCt76d.png

15 ms

bnr_vr_yakushima.jpg

bnr_vr_yakushima.jpg

4768 ms

bnr_kouka_project.jpg

bnr_kouka_project.jpg

4930 ms

flipdesk.min.js

flipdesk.min.js

13 ms

flipdesk.css

flipdesk.css

6 ms

setting

setting

555 ms

bnr_tax.gif

bnr_tax.gif

4454 ms

bnr_enterprise.png

bnr_enterprise.png

4385 ms

bnr_graduate.png

bnr_graduate.png

4257 ms

bnr_college.jpg

bnr_college.jpg

4896 ms

bnr_oriko.gif

bnr_oriko.gif

4577 ms

bnr_mirainote_2.jpg

bnr_mirainote_2.jpg

4576 ms

bnr_tsunagu_ktc.jpg

bnr_tsunagu_ktc.jpg

4115 ms

bnr_junior.jpg

bnr_junior.jpg

4527 ms

sitelogo_simple_2022.svg

sitelogo_simple_2022.svg

4068 ms

mv_catch_p.svg

mv_catch_p.svg

4410 ms

sprite.png

sprite.png

4617 ms

sitelogo_full_2022.svg

sitelogo_full_2022.svg

4243 ms

sitelogo_tagline_2022.svg

sitelogo_tagline_2022.svg

4236 ms

sitelogo_yakushima_2022.svg

sitelogo_yakushima_2022.svg

4201 ms

sitelogo_ohzora_support_2022.svg

sitelogo_ohzora_support_2022.svg

4237 ms

section_02_txt_01_p.svg

section_02_txt_01_p.svg

4414 ms

section_02_txt_02.svg

section_02_txt_02.svg

3902 ms

section_06_txt_01.png

section_06_txt_01.png

3609 ms

sitelogo_large.svg

sitelogo_large.svg

3693 ms

pd.js

pd.js

23 ms

Accessibility Review

ktc-school.com accessibility score

91

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 input fields do not have accessible names

High

ARIA toggle fields do not have accessible names

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

Links do not have a discernible name

Best Practices

ktc-school.com best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

ktc-school.com SEO score

85

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

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

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 Ktc-school.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 Ktc-school.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

ktc-school.com

Open Graph data is detected on the main page of Ktc School. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: