Tools & Wizards About Us
shikakude.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

shikakude.com

資格の王道

Page Load Speed

3.6 sec in total

First Response

558 ms

Resources Loaded

2.7 sec

Page Rendered

388 ms

shikakude.com screenshot

About Website

Visit shikakude.com now to see the best up-to-date Shikakude content for Japan and also check out these interesting facts you probably never knew about shikakude.com

日本で取得できる資格の概要をほとんど網羅。国家資格、公的資格、民間資格の資格の種類や、独立できる資格、情報処理の資格、福祉系の資格、地球を守る資格など資格の分野で取りたい資格をすぐに見つけられます。資格難易度も掲載。資格をとってライバルたちに差をつけよう！！掲載資格860種類！

Visit shikakude.com

Key Findings

We analyzed Shikakude.com page load time and found that the first response time was 558 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

shikakude.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

17/100

25%

SI (Speed Index)

Value16.8 s

0/100

10%

TBT (Total Blocking Time)

Value22,710 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.158

73/100

15%

TTI (Time to Interactive)

Value35.4 s

0/100

10%

Network Requests Diagram

shikakude.com

558 ms

styleindex.css

177 ms

bookmark_button.js

359 ms

analytics.js

37 ms

count.cgi

1118 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 79% of them (55 requests) were addressed to the original Shikakude.com, 4% (3 requests) were made to S.ytimg.com and 4% (3 requests) were made to A.image.accesstrade.net. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Shikakude.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 432.7 kB (65%)

Content Size

668.9 kB

After Optimization

236.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Shikakude.com main page is 668.9 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. 35% of websites need less resources to load. Javascripts take 291.3 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 29.9 kB

  • Original 39.5 kB
  • After minification 35.5 kB
  • After compression 9.6 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 29.9 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 208 B

  • Original 84.8 kB
  • After minification 84.6 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. Shikakude images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 191.8 kB

  • Original 291.3 kB
  • After minification 281.7 kB
  • After compression 99.4 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 191.8 kB or 66% of the original size.

CSS Optimization

-83%

Potential reduce by 210.8 kB

  • Original 253.3 kB
  • After minification 249.7 kB
  • After compression 42.5 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. Shikakude.com needs all CSS files to be minified and compressed as it can save up to 210.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 46 (69%)

Requests Now

67

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shikakude. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

shikakude.com

shikakude.com

558 ms

styleindex.css

styleindex.css

177 ms

bookmark_button.js

bookmark_button.js

359 ms

analytics.js

analytics.js

37 ms

count.cgi

count.cgi

1118 ms

nID5F8HkEYI

nID5F8HkEYI

163 ms

back.png

back.png

177 ms

title.png

title.png

520 ms

search_icon2.gif

search_icon2.gif

400 ms

topics.png

topics.png

403 ms

new2.gif

new2.gif

404 ms

z41.png

z41.png

414 ms

check1.png

check1.png

431 ms

kokka_16.gif

kokka_16.gif

528 ms

kouteki_16.gif

kouteki_16.gif

561 ms

minkan_16.gif

minkan_16.gif

562 ms

do.gif

do.gif

621 ms

jo.png

jo.png

645 ms

pencil2.gif

pencil2.gif

692 ms

un.gif

un.gif

700 ms

ko.gif

ko.gif

746 ms

fu.png

fu.png

747 ms

ka.gif

ka.gif

823 ms

co.gif

co.gif

858 ms

ch.gif

ch.gif

864 ms

kok.png

kok.png

874 ms

ga.gif

ga.gif

931 ms

ju.gif

ju.gif

934 ms

sh.gif

sh.gif

1027 ms

mu.gif

mu.gif

1071 ms

kaw.gif

kaw.gif

1034 ms

star5.png

star5.png

1047 ms

star4.png

star4.png

1118 ms

star3.png

star3.png

1119 ms

star2.png

star2.png

1230 ms

star1.png

star1.png

1205 ms

dok.png

dok.png

1222 ms

gyo.gif

gyo.gif

1288 ms

maru_16.gif

maru_16.gif

1313 ms

pickup.png

pickup.png

1313 ms

allow4.gif

allow4.gif

1377 ms

new.gif

new.gif

1395 ms

collect

collect

12 ms

www-embed-player-vflZsBgOl.css

www-embed-player-vflZsBgOl.css

58 ms

www-embed-player.js

www-embed-player.js

83 ms

base.js

base.js

150 ms

243 ms

chumoku14.gif

chumoku14.gif

1268 ms

6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js

6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js

39 ms

ad_status.js

ad_status.js

39 ms

null_image.gif

null_image.gif

17 ms

null_image.gif

null_image.gif

16 ms

null_image.gif

null_image.gif

13 ms

schedule2.png

schedule2.png

1104 ms

news2.png

news2.png

1097 ms

school2.png

school2.png

1097 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

74 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

85 ms

recruit2.png

recruit2.png

1145 ms

resume2.png

resume2.png

1145 ms

mailmag.png

mailmag.png

1128 ms

bbs2.png

bbs2.png

1159 ms

questionnaire2.png

questionnaire2.png

1127 ms

mail2.png

mail2.png

1158 ms

about2.png

about2.png

1109 ms

benefit3.png

benefit3.png

1108 ms

kyusyokushien1.png

kyusyokushien1.png

1160 ms

syokukun.png

syokukun.png

1171 ms

google.png

google.png

1127 ms

hatena.png

hatena.png

1186 ms

Accessibility Review

shikakude.com accessibility score

68

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

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

shikakude.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

shikakude.com SEO score

92

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

Image elements do not have [alt] attributes

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

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Shikakude.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 Shikakude.com main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

shikakude.com

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