1.7 sec in total
42 ms
1.4 sec
202 ms
Visit thebook.io now to see the best up-to-date The Book content for South Korea and also check out these interesting facts you probably never knew about thebook.io
더북(TheBook): (주)도서출판 길벗에서 제공하는 IT 도서 열람 서비스입니다.
Visit thebook.ioWe analyzed Thebook.io page load time and found that the first response time was 42 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
thebook.io performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value5.0 s
26/100
25%
Value4.4 s
74/100
10%
Value590 ms
50/100
30%
Value0.082
94/100
15%
Value6.5 s
58/100
10%
42 ms
230 ms
108 ms
116 ms
509 ms
Our browser made a total of 38 requests to load all elements on the main page. We found that 18% of them (7 requests) were addressed to the original Thebook.io, 32% (12 requests) were made to Lh3.googleusercontent.com and 11% (4 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (540 ms) relates to the external source Cdn.rawgit.com.
Page size can be reduced by 722.0 kB (21%)
3.5 MB
2.7 MB
In fact, the total size of Thebook.io main page is 3.5 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. 55% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.
Potential reduce by 17.2 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 2.5 kB, which is 11% 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 17.2 kB or 79% of the original size.
Potential reduce by 495.3 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. Obviously, The Book needs image optimization as it can save up to 495.3 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 103.6 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 103.6 kB or 45% of the original size.
Potential reduce by 105.8 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. Thebook.io needs all CSS files to be minified and compressed as it can save up to 105.8 kB or 73% of the original size.
Number of requests can be reduced by 16 (46%)
35
19
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of The Book. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
thebook.io
42 ms
thebook.io
230 ms
icon
108 ms
material.indigo-pink.min.css
116 ms
angular-toastr.min.css
509 ms
fonts.css
106 ms
styles.css
251 ms
bootstrap.min.css
91 ms
material.min.js
123 ms
helpers.js
246 ms
angular.min.js
120 ms
angular-animate.min.js
128 ms
ui-bootstrap-tpls.min.js
100 ms
angular-toastr.tpls.min.js
540 ms
app.js
243 ms
adsbygoogle.js
79 ms
235 ms
ic_email.png
179 ms
228 ms
225 ms
cover_006796.jpg
222 ms
cover_006736.jpg
359 ms
cover_006792.jpg
335 ms
cover_006756.jpg
363 ms
ca-pub-9843743354694835.js
186 ms
zrt_lookup.html
197 ms
show_ads_impl.js
210 ms
s9.g
159 ms
analytics.js
272 ms
banner_006724.png
82 ms
banner_006791.png
68 ms
banner_006765.png
186 ms
banner_006794.jpg
184 ms
banner_006796.png
190 ms
glyphicons-halflings-regular.woff
21 ms
ads
223 ms
osd.js
28 ms
collect
34 ms
thebook.io 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
Image elements do not have [alt] attributes
Links do not have a discernible name
thebook.io 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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
thebook.io 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
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
Document uses legible font sizes
Tap targets are not sized appropriately
KO
KO
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Thebook.io 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 Thebook.io 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.
thebook.io
Open Graph description is not detected on the main page of The Book. 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: