10.6 sec in total
678 ms
9.7 sec
237 ms
Visit ybmbooks.com now to see the best up-to-date YBM Books content for South Korea and also check out these interesting facts you probably never knew about ybmbooks.com
MP3, 무료특강, 참고서 자료등 ybm북스에서 무료로 학습자료를 공유해드립니다. 또한 다양한 이벤트와 도서웹진, 모의토익등 다양한 정보가 많으니 ybm북스에서 확인하세요
Visit ybmbooks.comWe analyzed Ybmbooks.com page load time and found that the first response time was 678 ms and then it took 9.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
ybmbooks.com performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value18.1 s
0/100
25%
Value18.3 s
0/100
10%
Value1,700 ms
11/100
30%
Value0.048
99/100
15%
Value37.0 s
0/100
10%
678 ms
1318 ms
72 ms
635 ms
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.
Page size can be reduced by 267.4 kB (4%)
6.5 MB
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.
Potential reduce by 47.8 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.
Potential reduce by 118.7 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. YBM Books images are well optimized though.
Potential reduce by 27.1 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.
Potential reduce by 73.8 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. 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.
Number of requests can be reduced by 12 (12%)
98
86
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.
ybmbooks.com
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www.ybmbooks.com
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72 ms
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33 ms
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37 ms
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ybmbooks.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
ybmbooks.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
ybmbooks.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Image elements do not have [alt] attributes
KO
KO
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.
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: