Tools & Wizards About Us
tosyokan-navi.com screenshot

Report Summary

  • 72

    Performance

    Renders faster than
    82% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

tosyokan-navi.com

全国の図書館を設備で検索「図書館なび」｜自習室、無線LAN、電源、カフェ・レストラン、児童向け設備など

Page Load Speed

5 sec in total

First Response

539 ms

Resources Loaded

4.1 sec

Page Rendered

329 ms

tosyokan-navi.com screenshot

About Website

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

全国の図書館の設備・サービス情報をまとめました。無線LAN（Wifi）、電源、自習室やカフェ・食堂の有無をはじめ、雑誌や児童向け資料、障害者向け設備まで、各種条件から目的の図書館を検索できます。蔵書数、座席数などカテゴリー別ランキングもあります。

Visit tosyokan-navi.com

Key Findings

We analyzed Tosyokan-navi.com page load time and found that the first response time was 539 ms and then it took 4.5 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

tosyokan-navi.com performance score

72

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value7.8 s

24/100

10%

TBT (Total Blocking Time)

Value180 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.3 s

32/100

10%

Network Requests Diagram

tosyokan-navi.com

539 ms

www.tosyokan-navi.com

1034 ms

gotop.js

331 ms

jquery-1.9.1.min.js

860 ms

common.css

366 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 68% of them (40 requests) were addressed to the original Tosyokan-navi.com, 12% (7 requests) were made to Tpc.googlesyndication.com and 8% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Tosyokan-navi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 234.6 kB (14%)

Content Size

1.7 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tosyokan-navi.com main page is 1.7 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. 60% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 22.4 kB

  • Original 28.9 kB
  • After minification 28.5 kB
  • After compression 6.6 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 22.4 kB or 77% of the original size.

Image Optimization

-8%

Potential reduce by 114.5 kB

  • Original 1.4 MB
  • After minification 1.3 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. Tosyokan Navi images are well optimized though.

JavaScript Optimization

-44%

Potential reduce by 92.1 kB

  • Original 208.7 kB
  • After minification 208.5 kB
  • After compression 116.5 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 92.1 kB or 44% of the original size.

CSS Optimization

-74%

Potential reduce by 5.6 kB

  • Original 7.6 kB
  • After minification 7.0 kB
  • After compression 2.0 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. Tosyokan-navi.com needs all CSS files to be minified and compressed as it can save up to 5.6 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (18%)

Requests Now

57

After Optimization

47

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tosyokan Navi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

tosyokan-navi.com

tosyokan-navi.com

539 ms

www.tosyokan-navi.com

www.tosyokan-navi.com

1034 ms

gotop.js

gotop.js

331 ms

jquery-1.9.1.min.js

jquery-1.9.1.min.js

860 ms

common.css

common.css

366 ms

top.css

top.css

374 ms

adsbygoogle.js

adsbygoogle.js

6 ms

logo.jpg

logo.jpg

331 ms

000069-01.jpg

000069-01.jpg

746 ms

000010-01.jpg

000010-01.jpg

343 ms

000022-01.jpg

000022-01.jpg

578 ms

000016-01.jpg

000016-01.jpg

726 ms

000001-01.jpg

000001-01.jpg

916 ms

000021-01.jpg

000021-01.jpg

663 ms

000072-01.jpg

000072-01.jpg

685 ms

001670-01.jpg

001670-01.jpg

938 ms

000278-01.jpg

000278-01.jpg

830 ms

000813-01.jpg

000813-01.jpg

1028 ms

000361-01.jpg

000361-01.jpg

1090 ms

000352-01.jpg

000352-01.jpg

1121 ms

000356-01.jpg

000356-01.jpg

1160 ms

001554-01.jpg

001554-01.jpg

1464 ms

000963-01.jpg

000963-01.jpg

1313 ms

000569-01.jpg

000569-01.jpg

1202 ms

001756-01.jpg

001756-01.jpg

1278 ms

000600-01.jpg

000600-01.jpg

1499 ms

001358-01.jpg

001358-01.jpg

1330 ms

001043-01.jpg

001043-01.jpg

1375 ms

000131-01.jpg

000131-01.jpg

1462 ms

000237-01.jpg

000237-01.jpg

1503 ms

000206-01.jpg

000206-01.jpg

1497 ms

000145-01.jpg

000145-01.jpg

1550 ms

000075-01.jpg

000075-01.jpg

1646 ms

000211-01.jpg

000211-01.jpg

1646 ms

000169-01.jpg

000169-01.jpg

1664 ms

btn-dengen.jpg

btn-dengen.jpg

1687 ms

btn-jisyu.jpg

btn-jisyu.jpg

1691 ms

btn-cafe.jpg

btn-cafe.jpg

1722 ms

btn-wifi.jpg

btn-wifi.jpg

1829 ms

btn-zosyo.jpg

btn-zosyo.jpg

1830 ms

btn-zaseki.jpg

btn-zaseki.jpg

1832 ms

ca-pub-5281375524168306.js

ca-pub-5281375524168306.js

50 ms

zrt_lookup.html

zrt_lookup.html

49 ms

show_ads_impl.js

show_ads_impl.js

68 ms

analytics.js

analytics.js

32 ms

collect

collect

3 ms

collect

collect

96 ms

ads

ads

173 ms

expansion_embed.js

expansion_embed.js

8 ms

osd.js

osd.js

22 ms

suggestion_autolayout_V2_5.css

suggestion_autolayout_V2_5.css

29 ms

suggestion_autolayout_V2_5.js

suggestion_autolayout_V2_5.js

31 ms

layout_engine.js

layout_engine.js

39 ms

abg.js

abg.js

202 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

33 ms

14324016612749449668

14324016612749449668

28 ms

13857654106738080408

13857654106738080408

24 ms

s

s

14 ms

x_button_blue2.svg

x_button_blue2.svg

10 ms

Accessibility Review

tosyokan-navi.com accessibility score

83

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

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

<frame> or <iframe> elements do not have a title

Best Practices

tosyokan-navi.com best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

tosyokan-navi.com SEO score

77

Search Engine Optimization Advices

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 Tosyokan-navi.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 Tosyokan-navi.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

tosyokan-navi.com

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