Tools & Wizards About Us

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

bookoob.co.kr

전국 어디든 택배로 무료 책 대여, 완벽한 책 정리를 위한 외부서가 제공. 공유경제 도서관 :: 국민도서관 책꽂이

Page Load Speed

8.2 sec in total

First Response

1.5 sec

Resources Loaded

6.5 sec

Page Rendered

225 ms

About Website

Welcome to bookoob.co.kr homepage info - get ready to check Bookoob best content for South Korea right away, or after learning these important things about bookoob.co.kr

공유경제 철학에 근간한 국민도서관 책꽂이는 세계 최초의 공유형 도서관으로서, 전국 어디든 (도서지방 제외) 60일간 최대 20권까지 왕복택배비 만으로 도서를 대여해주고 있으며, 도서관 서가를 개인들의 도서보관을 위한 공간으로 제공해 주고 전문적으로 책을 관리해 줌으로써, 많은 책으로 인해 공간의 부담을 느끼는 애서가들에게 매우 유용한 서비스로 자리잡고 있습...

Visit bookoob.co.kr

Key Findings

We analyzed Bookoob.co.kr page load time and found that the first response time was 1.5 sec and then it took 6.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

bookoob.co.kr performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value18.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value23.5 s

0/100

25%

SI (Speed Index)

Value24.6 s

0/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value25.3 s

0/100

10%

Network Requests Diagram

www.bookoob.co.kr

1490 ms

butter.js

44 ms

font-awesome.min.css

349 ms

red.css

525 ms

component.css

528 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 79% of them (97 requests) were addressed to the original Bookoob.co.kr, 4% (5 requests) were made to Res.cloudinary.com and 3% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Bookoob.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (61%)

Content Size

2.3 MB

After Optimization

902.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bookoob.co.kr main page is 2.3 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. Javascripts take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 39.4 kB

  • Original 51.9 kB
  • After minification 45.4 kB
  • After compression 12.4 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 6.5 kB, which is 12% 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 39.4 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 7.1 kB

  • Original 567.1 kB
  • After minification 560.0 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. Bookoob images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 956.1 kB

  • Original 1.2 MB
  • After minification 1.0 MB
  • After compression 267.0 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 956.1 kB or 78% of the original size.

CSS Optimization

-87%

Potential reduce by 416.9 kB

  • Original 480.4 kB
  • After minification 366.7 kB
  • After compression 63.5 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. Bookoob.co.kr needs all CSS files to be minified and compressed as it can save up to 416.9 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 90 (78%)

Requests Now

115

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 115 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bookoob. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 55 to 1 for JavaScripts and from 37 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

bookoob.co.kr accessibility score

74

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

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

bookoob.co.kr 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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

bookoob.co.kr SEO score

92

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

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

    KO

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bookoob.co.kr can be misinterpreted by Google and other search engines. Our service has detected that Korean 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 Bookoob.co.kr 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 data is detected on the main page of Bookoob. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: