Access ybmbooks.com. YBM BOOKS에 오신걸 환영합니다.

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value18.1 s

0/100

25%

SI (Speed Index)

Value18.3 s

0/100

10%

TBT (Total Blocking Time)

Value1,700 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.048

99/100

15%

TTI (Time to Interactive)

Value37.0 s

0/100

10%

ybmbooks.com

678 ms

www.ybmbooks.com

1318 ms

js

72 ms

commonV2.css

635 ms

mainV2.css

578 ms

Our browser made a total of 104 requests to load all elements on the main page. We found that 46% of them (48 requests) were addressed to the original Ybmbooks.com, 33% (34 requests) were made to Upsisa.ybmnet.co.kr and 6% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (6.7 sec) relates to the external source Upsisa.ybmnet.co.kr.

Content Size

6.5 MB

After Optimization

6.2 MB

In fact, the total size of Ybmbooks.com main page is 6.5 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 6.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 47.8 kB

Original 58.8 kB
After minification 50.5 kB
After compression 11.0 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 8.3 kB, which is 14% 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 47.8 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 118.7 kB

Original 6.1 MB
After minification 5.9 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. YBM Books images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 27.1 kB

Original 222.9 kB
After minification 219.3 kB
After compression 195.9 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 27.1 kB or 12% of the original size.

CSS Optimization

-50%

Potential reduce by 73.8 kB

Original 147.3 kB
After minification 137.7 kB
After compression 73.5 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. Ybmbooks.com needs all CSS files to be minified and compressed as it can save up to 73.8 kB or 50% of the original size.

Requests Now

After Optimization

The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of YBM Books. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

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.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

KO
Language Claimed

KO
Encoding

EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ybmbooks.com can be misinterpreted by Google and other search engines. Our service has detected that Korean is used on the page, and it matches the claimed language. Our system also found out that Ybmbooks.com main page’s claimed encoding is euc-kr. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

ybmbooks.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

YBM BOOKS에 오신걸 환영합니다.

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

ybmbooks.com

www.ybmbooks.com

js

commonV2.css

mainV2.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

ybmbooks.com

www.ybmbooks.com

js

commonV2.css

mainV2.css

jquery-1.11.3.min.js

jquery-ui.js

jquery.slides.js

animatescroll.min.js

js

analytics.js

collect

collect

wcslog.js

ga-audiences

NotoSansKR-regular.woff

fontNotoSansKR-500.woff

202312191717_4178.jpg

YM94JCVgAZQ

bg_service.gif

sp_site_list_1224_v3.png

bg_myList.gif

books_logo.svg

bg_search.gif

btn_search.gif

25290_231229_books.jpg

gnb_mnu_all.gif

19655_banner.jpg

1020400_240429.jpg

1020400_240305_kyobo.jpg

1020400_240318_sconn.png

1020400_240226.jpg

sp_control_arrow.png

bg_event_lst.png

bg_event_lst_ctr2.gif

bg_event_lst_ctr1.gif

h2_newBooks.gif

btn_bg_arrow_r.gif

336150_231211.jpg

h2_bestBooks.gif

bg_tab_bar.gif

bg_tab_li.gif

sp_control_arrow.png