Tools & Wizards About Us

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

eiseibunko.com

永青文庫

Page Load Speed

4.3 sec in total

First Response

570 ms

Resources Loaded

3.4 sec

Page Rendered

280 ms

About Website

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

永青文庫公式サイト。細川家に伝来する歴史資料や美術品の文化財を一般に公開

Visit eiseibunko.com

Key Findings

We analyzed Eiseibunko.com page load time and found that the first response time was 570 ms and then it took 3.7 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

eiseibunko.com performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.1 s

100/100

25%

SI (Speed Index)

Value1.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.0 s

100/100

10%

Network Requests Diagram

eiseibunko.com

570 ms

eiseibunko.css

353 ms

title_01.gif

390 ms

X_logo.svg

391 ms

title_02.gif

392 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that all of those requests were addressed to Eiseibunko.com and no external sources were called. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Eiseibunko.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.8 kB (5%)

Content Size

469.1 kB

After Optimization

444.3 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Eiseibunko.com main page is 469.1 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. 25% of websites need less resources to load. Images take 444.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 18.2 kB

  • Original 23.9 kB
  • After minification 18.7 kB
  • After compression 5.7 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. This page needs HTML code to be minified as it can gain 5.2 kB, which is 22% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 18.2 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 5.8 kB

  • Original 444.0 kB
  • After minification 438.2 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. Eiseibunko images are well optimized though.

CSS Optimization

-68%

Potential reduce by 766 B

  • Original 1.1 kB
  • After minification 913 B
  • After compression 363 B

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. Eiseibunko.com needs all CSS files to be minified and compressed as it can save up to 766 B or 68% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

36

After Optimization

36

  • Images
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Eiseibunko. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

eiseibunko.com accessibility score

50

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.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

eiseibunko.com best practices score

75

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

SEO Factors

eiseibunko.com SEO score

67

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

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 Eiseibunko.com 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 Eiseibunko.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

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