Tools & Wizards About Us
kindai.ndl.go.jp screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

kindai.ndl.go.jp

国立国会図書館デジタルコレクション

Page Load Speed

4.9 sec in total

First Response

904 ms

Resources Loaded

3.9 sec

Page Rendered

123 ms

kindai.ndl.go.jp screenshot

About Website

Click here to check amazing Kindai Ndl content for Japan. Otherwise, check out these important facts you probably never knew about kindai.ndl.go.jp

Visit kindai.ndl.go.jp

Key Findings

We analyzed Kindai.ndl.go.jp page load time and found that the first response time was 904 ms and then it took 4 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

kindai.ndl.go.jp performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value8.8 s

15/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

kindai.ndl.go.jp

904 ms

jquery-1.4.2.min.js

1077 ms

search.js

579 ms

WT01.js

408 ms

WT01.css

616 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that all of those requests were addressed to Kindai.ndl.go.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Kindai.ndl.go.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 65.5 kB (68%)

Content Size

96.7 kB

After Optimization

31.2 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Kindai.ndl.go.jp main page is 96.7 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. Only 10% of websites need less resources to load. Javascripts take 81.4 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 5.3 kB

  • Original 8.0 kB
  • After minification 7.5 kB
  • After compression 2.6 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 5.3 kB or 67% of the original size.

JavaScript Optimization

-67%

Potential reduce by 54.7 kB

  • Original 81.4 kB
  • After minification 78.8 kB
  • After compression 26.7 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 54.7 kB or 67% of the original size.

CSS Optimization

-75%

Potential reduce by 5.5 kB

  • Original 7.3 kB
  • After minification 5.2 kB
  • After compression 1.8 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. Kindai.ndl.go.jp needs all CSS files to be minified and compressed as it can save up to 5.5 kB or 75% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

27

After Optimization

27

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kindai Ndl. According to our analytics all requests are already optimized.

Network Requests Diagram

kindai.ndl.go.jp

kindai.ndl.go.jp

904 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

1077 ms

search.js

search.js

579 ms

WT01.js

WT01.js

408 ms

WT01.css

WT01.css

616 ms

lang_ja.css

lang_ja.css

418 ms

bg_topbody.gif

bg_topbody.gif

183 ms

logo.gif

logo.gif

715 ms

mark_toumei.gif

mark_toumei.gif

381 ms

search_txt.gif

search_txt.gif

386 ms

tit_arekor.gif

tit_arekor.gif

387 ms

bg_colR.gif

bg_colR.gif

615 ms

tit_oshirase.gif

tit_oshirase.gif

588 ms

tit_digital.gif

tit_digital.gif

774 ms

banner_digi.gif

banner_digi.gif

1014 ms

banner_classic.gif

banner_classic.gif

1041 ms

banner_music.gif

banner_music.gif

1248 ms

banner_newspaper.gif

banner_newspaper.gif

1228 ms

banner_kanpo.gif

banner_kanpo.gif

1352 ms

banner_etd.gif

banner_etd.gif

1307 ms

banner_kensei.gif

banner_kensei.gif

1581 ms

banner_occupied.gif

banner_occupied.gif

1613 ms

bg_header.gif

bg_header.gif

2029 ms

bg_search.gif

bg_search.gif

1643 ms

btn_search.gif

btn_search.gif

1681 ms

search_genre.gif

search_genre.gif

1770 ms

search_detail.gif

search_detail.gif

1969 ms

ico_orange.gif

ico_orange.gif

2013 ms

Accessibility Review

kindai.ndl.go.jp accessibility score

93

Accessibility Issues

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

kindai.ndl.go.jp 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

kindai.ndl.go.jp SEO score

88

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

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kindai.ndl.go.jp 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 Kindai.ndl.go.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

kindai.ndl.go.jp

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