Tools & Wizards About Us
siruzou.jp screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

siruzou.jp

ネタ！museum・知る蔵campus～総合情報ポータル

Page Load Speed

6.2 sec in total

First Response

1.4 sec

Resources Loaded

4.3 sec

Page Rendered

443 ms

siruzou.jp screenshot

About Website

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

知る蔵campusは、古今東西のあらゆる面白ネタを集めた総合情報ポータルサイトとなります。知らなくても生きていけるけど、知ると人生が楽しくなる。そんなネタが知る蔵campusには詰まっています。

Visit siruzou.jp

Key Findings

We analyzed Siruzou.jp page load time and found that the first response time was 1.4 sec and then it took 4.8 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

siruzou.jp performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

28/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

www.siruzou.jp

1416 ms

wp-emoji-release.min.js

344 ms

jquery.js

649 ms

jquery-migrate.min.js

339 ms

js

66 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 87% of them (40 requests) were addressed to the original Siruzou.jp, 4% (2 requests) were made to Connect.facebook.net and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Siruzou.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 196.1 kB (48%)

Content Size

404.9 kB

After Optimization

208.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Siruzou.jp main page is 404.9 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. 30% of websites need less resources to load. Javascripts take 150.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 40.9 kB

  • Original 53.0 kB
  • After minification 50.9 kB
  • After compression 12.2 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 40.9 kB or 77% of the original size.

Image Optimization

-6%

Potential reduce by 6.8 kB

  • Original 121.7 kB
  • After minification 114.9 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. Siruzou images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 82.0 kB

  • Original 150.6 kB
  • After minification 149.5 kB
  • After compression 68.6 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 82.0 kB or 54% of the original size.

CSS Optimization

-84%

Potential reduce by 66.4 kB

  • Original 79.5 kB
  • After minification 61.4 kB
  • After compression 13.1 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. Siruzou.jp needs all CSS files to be minified and compressed as it can save up to 66.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (59%)

Requests Now

44

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Siruzou. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.siruzou.jp

www.siruzou.jp

1416 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

344 ms

jquery.js

jquery.js

649 ms

jquery-migrate.min.js

jquery-migrate.min.js

339 ms

js

js

66 ms

style.css

style.css

578 ms

comment-style.css

comment-style.css

386 ms

japanese.css

japanese.css

403 ms

jscript.js

jscript.js

507 ms

scroll.js

scroll.js

531 ms

comment.js

comment.js

579 ms

platform.js

platform.js

22 ms

wp-embed.min.js

wp-embed.min.js

443 ms

style_pc.css

style_pc.css

189 ms

sdk.js

sdk.js

13 ms

sdk.js

sdk.js

4 ms

37 ms

background.jpg

background.jpg

190 ms

menu_bg.gif

menu_bg.gif

163 ms

logo.gif

logo.gif

194 ms

menu_line.gif

menu_line.gif

195 ms

arrow3.png

arrow3.png

736 ms

siruzou-top02.gif

siruzou-top02.gif

387 ms

content_side.gif

content_side.gif

325 ms

content_top.gif

content_top.gif

377 ms

content_bottom.gif

content_bottom.gif

388 ms

icon_category.png

icon_category.png

387 ms

icon_comment.png

icon_comment.png

486 ms

No0222-10-220x146.jpg

No0222-10-220x146.jpg

565 ms

arrow2.png

arrow2.png

581 ms

icon_tag.png

icon_tag.png

580 ms

Fotolia_53147147_XS-220x146.jpg

Fotolia_53147147_XS-220x146.jpg

582 ms

Fotolia_27117562_XS-220x146.jpg

Fotolia_27117562_XS-220x146.jpg

648 ms

21-1-2-220x146.jpg

21-1-2-220x146.jpg

756 ms

12b1d96753845ba1793df4e9bdc9a61e-220x146.jpg

12b1d96753845ba1793df4e9bdc9a61e-220x146.jpg

775 ms

68-220x146.jpg

68-220x146.jpg

775 ms

Fotolia_48101200_XS-e1422232884543-220x146.jpg

Fotolia_48101200_XS-e1422232884543-220x146.jpg

775 ms

Fotolia_59943748_XS-220x146.jpg

Fotolia_59943748_XS-220x146.jpg

813 ms

Fotolia_74539498_XS-e1422234666770-220x146.jpg

Fotolia_74539498_XS-e1422234666770-220x146.jpg

903 ms

88-1-220x146.jpg

88-1-220x146.jpg

945 ms

senmon.jpg

senmon.jpg

967 ms

return_top.png

return_top.png

969 ms

widgets.js

widgets.js

34 ms

arrow1.png

arrow1.png

902 ms

line1.gif

line1.gif

908 ms

style_sp.css

style_sp.css

192 ms

Accessibility Review

siruzou.jp accessibility score

76

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

siruzou.jp 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

SEO Factors

siruzou.jp SEO score

98

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Siruzou.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Siruzou.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

siruzou.jp

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