Report Summary

  • 49

    Performance

    Renders faster than
    68% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

libro.jp

NICリテールズ株式会社

Page Load Speed

5.1 sec in total

First Response

689 ms

Resources Loaded

4.1 sec

Page Rendered

289 ms

libro.jp screenshot

About Website

Welcome to libro.jp homepage info - get ready to check Libro best content for Japan right away, or after learning these important things about libro.jp

NICリテールズは全国に展開する約250店舗に及ぶ小売事業の運営とそのバックオフィスを支援するBPO事業を展開しています

Visit libro.jp

Key Findings

We analyzed Libro.jp page load time and found that the first response time was 689 ms and then it took 4.4 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

libro.jp performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

Network Requests Diagram

libro.jp

689 ms

base.css

467 ms

font-awesome.min.css

476 ms

jquery-1.7.1.min.js

828 ms

jquery.droppy.js

335 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 62% of them (52 requests) were addressed to the original Libro.jp, 20% (17 requests) were made to Pbs.twimg.com and 6% (5 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Libro.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 354.3 kB (7%)

Content Size

5.1 MB

After Optimization

4.7 MB

In fact, the total size of Libro.jp main page is 5.1 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 4.8 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 14.4 kB

  • Original 19.2 kB
  • After minification 18.6 kB
  • After compression 4.9 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 14.4 kB or 75% of the original size.

Image Optimization

-3%

Potential reduce by 167.3 kB

  • Original 4.8 MB
  • After minification 4.6 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. Libro images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 110.6 kB

  • Original 168.8 kB
  • After minification 143.8 kB
  • After compression 58.2 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 110.6 kB or 66% of the original size.

CSS Optimization

-81%

Potential reduce by 62.0 kB

  • Original 76.4 kB
  • After minification 70.8 kB
  • After compression 14.4 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. Libro.jp needs all CSS files to be minified and compressed as it can save up to 62.0 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (29%)

Requests Now

83

After Optimization

59

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Libro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

libro.jp accessibility score

81

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.

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

libro.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

libro.jp SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Libro.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 Libro.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

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