Tools & Wizards About Us
kikenbutu-web.com screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

kikenbutu-web.com

危険物取扱者試験乙4問題集

Page Load Speed

4.3 sec in total

First Response

540 ms

Resources Loaded

3.6 sec

Page Rendered

185 ms

kikenbutu-web.com screenshot

About Website

Welcome to kikenbutu-web.com homepage info - get ready to check Kikenbutu Web best content for Japan right away, or after learning these important things about kikenbutu-web.com

乙4のオリジナル問題集！危険物取扱者になるための乙4試験合格率アップを目的に、過去問題の出題傾向などから講習・対策をしているサイトです！

Visit kikenbutu-web.com

Key Findings

We analyzed Kikenbutu-web.com page load time and found that the first response time was 540 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

kikenbutu-web.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

53/100

25%

SI (Speed Index)

Value8.4 s

18/100

10%

TBT (Total Blocking Time)

Value6,910 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.29

41/100

15%

TTI (Time to Interactive)

Value17.2 s

4/100

10%

Network Requests Diagram

kikenbutu-web.com

540 ms

kikenbutu-web.com

701 ms

js

59 ms

main.css

179 ms

adsbygoogle.js

110 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 15% of them (10 requests) were addressed to the original Kikenbutu-web.com, 16% (11 requests) were made to Tpc.googlesyndication.com and 16% (11 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (701 ms) belongs to the original domain Kikenbutu-web.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.0 kB (5%)

Content Size

639.1 kB

After Optimization

610.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kikenbutu-web.com main page is 639.1 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. 55% of websites need less resources to load. Javascripts take 460.3 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 26.0 kB

  • Original 33.9 kB
  • After minification 33.7 kB
  • After compression 8.0 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 26.0 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 1.4 kB

  • Original 142.7 kB
  • After minification 141.3 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. Kikenbutu Web images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.0 kB

  • Original 460.3 kB
  • After minification 460.3 kB
  • After compression 459.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-29%

Potential reduce by 621 B

  • Original 2.2 kB
  • After minification 2.2 kB
  • After compression 1.5 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. Kikenbutu-web.com needs all CSS files to be minified and compressed as it can save up to 621 B or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (53%)

Requests Now

59

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kikenbutu Web. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

kikenbutu-web.com

kikenbutu-web.com

540 ms

kikenbutu-web.com

kikenbutu-web.com

701 ms

js

js

59 ms

main.css

main.css

179 ms

adsbygoogle.js

adsbygoogle.js

110 ms

top-logo.gif

top-logo.gif

347 ms

show_ads_impl.js

show_ads_impl.js

252 ms

61K7GET252L._SL160_.jpg

61K7GET252L._SL160_.jpg

49 ms

51p5mLwyTRL._SL160_.jpg

51p5mLwyTRL._SL160_.jpg

23 ms

41sqhKYTYvL._SL160_.jpg

41sqhKYTYvL._SL160_.jpg

20 ms

511ej1wUsjL._SL160_.jpg

511ej1wUsjL._SL160_.jpg

20 ms

hmenu-logo.GIF

hmenu-logo.GIF

280 ms

h2-logo.GIF

h2-logo.GIF

280 ms

index-02.gif

index-02.gif

460 ms

index-03.gif

index-03.gif

461 ms

index-01.gif

index-01.gif

528 ms

category-p-logo.gif

category-p-logo.gif

529 ms

zrt_lookup.html

zrt_lookup.html

30 ms

ads

ads

484 ms

ads

ads

651 ms

ads

ads

525 ms

ads

ads

655 ms

faf71a0e8da85c808301846dcd34a748.js

faf71a0e8da85c808301846dcd34a748.js

68 ms

load_preloaded_resource.js

load_preloaded_resource.js

28 ms

4a5cba740e22a750e003929b84bc8a1f.js

4a5cba740e22a750e003929b84bc8a1f.js

28 ms

abg_lite.js

abg_lite.js

116 ms

window_focus.js

window_focus.js

157 ms

qs_click_protection.js

qs_click_protection.js

158 ms

ufs_web_display.js

ufs_web_display.js

25 ms

60efddb729a951d3495fe79f6eb41a86.js

60efddb729a951d3495fe79f6eb41a86.js

157 ms

reactive_library.js

reactive_library.js

309 ms

ca-pub-3664445671894613

ca-pub-3664445671894613

339 ms

icon.png

icon.png

199 ms

s

s

195 ms

css

css

61 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpyw.ttf

42 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpyw.ttf

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpyw.ttf

42 ms

sodar

sodar

235 ms

activeview

activeview

368 ms

ads

ads

382 ms

wJiNEMIFAPB28UFvxM_UYtYFK_ILnv1_rxRzUTsn-Pg.js

wJiNEMIFAPB28UFvxM_UYtYFK_ILnv1_rxRzUTsn-Pg.js

206 ms

10361866078585714462

10361866078585714462

336 ms

feedback_grey600_24dp.png

feedback_grey600_24dp.png

104 ms

fullscreen_api_adapter.js

fullscreen_api_adapter.js

100 ms

interstitial_ad_frame.js

interstitial_ad_frame.js

99 ms

pixel

pixel

244 ms

6094436044053429679

6094436044053429679

274 ms

abg_lite.js

abg_lite.js

238 ms

omrhp.js

omrhp.js

238 ms

Q12zgMmT.js

Q12zgMmT.js

233 ms

settings_grey600_24dp.png

settings_grey600_24dp.png

153 ms

gen_204

gen_204

170 ms

sodar2.js

sodar2.js

140 ms

pixel

pixel

93 ms

pixel

pixel

130 ms

css

css

48 ms

62bHydCX.html

62bHydCX.html

21 ms

runner.html

runner.html

28 ms

aframe

aframe

65 ms

activeview

activeview

185 ms

font

font

33 ms

font

font

32 ms

rum

rum

115 ms

pixel

pixel

30 ms

bounce

bounce

40 ms

pixel

pixel

27 ms

rum

rum

39 ms

Accessibility Review

kikenbutu-web.com accessibility score

97

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.

Best Practices

kikenbutu-web.com 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

kikenbutu-web.com SEO score

86

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 Kikenbutu-web.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 Kikenbutu-web.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

kikenbutu-web.com

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