7.3 sec in total
506 ms
6.5 sec
305 ms
Click here to check amazing Bookoa content for South Korea. Otherwise, check out these important facts you probably never knew about bookoa.com
중고책 중고서점 희귀도서 만화책 판타지 장르소설 교과서 대학교재 종교도서 저렴하고 빠른 온라인 중고서점 북코아입니다
Visit bookoa.comWe analyzed Bookoa.com page load time and found that the first response time was 506 ms and then it took 6.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
bookoa.com performance score
name
value
score
weighting
Value84.1 s
0/100
10%
Value93.9 s
0/100
25%
Value84.1 s
0/100
10%
Value3,700 ms
1/100
30%
Value0.057
98/100
15%
Value96.8 s
0/100
10%
506 ms
2355 ms
1147 ms
931 ms
720 ms
Our browser made a total of 129 requests to load all elements on the main page. We found that 76% of them (98 requests) were addressed to the original Bookoa.com, 9% (11 requests) were made to Image.bookoa.com and 3% (4 requests) were made to Book.daum-img.net. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Booktrade.or.kr.
Page size can be reduced by 254.8 kB (28%)
898.4 kB
643.6 kB
In fact, the total size of Bookoa.com main page is 898.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 634.5 kB which makes up the majority of the site volume.
Potential reduce by 169.3 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 41.0 kB, which is 22% 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 169.3 kB or 90% of the original size.
Potential reduce by 24.5 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. Bookoa images are well optimized though.
Potential reduce by 18.3 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 18.3 kB or 73% of the original size.
Potential reduce by 42.7 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. Bookoa.com needs all CSS files to be minified and compressed as it can save up to 42.7 kB or 85% of the original size.
Number of requests can be reduced by 59 (48%)
124
65
The browser has sent 124 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bookoa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
bookoa.com
506 ms
www.bookoa.com
2355 ms
style.css
1147 ms
bookoa.css
931 ms
bookoa1.css
720 ms
bookoa3.css
738 ms
bookoa5.css
737 ms
ajax_v2.js
972 ms
openWindow.js
979 ms
check.js
981 ms
logo01.gif
233 ms
top_bg01.gif
246 ms
top_bg03.gif
230 ms
top_m01.gif
237 ms
top_m02.gif
244 ms
top_m03.gif
460 ms
top_m04.gif
460 ms
top_m06.gif
488 ms
top_bg02.gif
489 ms
top_bg04.gif
468 ms
top_category.gif
651 ms
btn_search01.gif
650 ms
btn_search02.gif
670 ms
top_bg05.gif
679 ms
bn01.gif
680 ms
left_tb01.gif
687 ms
left_tb02.gif
879 ms
bn02.gif
879 ms
call_bn.gif
903 ms
left_tb03.gif
913 ms
w_tb01.gif
904 ms
w_tb05.gif
905 ms
w_tb02.gif
1108 ms
w_tb07.gif
1108 ms
tit04a.gif
1120 ms
btn_more01.gif
1163 ms
n.gif
1166 ms
w_tb08.gif
1161 ms
bl02.gif
1336 ms
tit01.gif
1335 ms
KOR9788973434008
1120 ms
14484907.jpg
917 ms
742 ms
w_tb03.gif
1156 ms
w_tb06.gif
1199 ms
w_tb04.gif
1206 ms
tit05.gif
1210 ms
15333227.jpg
1410 ms
000584.jpg
1330 ms
0100004311994_01.jpg
1095 ms
000584.jpg
1314 ms
898281132X.GIF
2120 ms
tit07.gif
1330 ms
dot01.gif
1325 ms
major1.jpg
1585 ms
largeBookOrder.jpg
1396 ms
best01.gif
1407 ms
b1.gif
1411 ms
0100005640338_01.jpg
1070 ms
16976.jpg
625 ms
633 ms
5630382.jpg
1808 ms
19623794.jpg
1725 ms
9788999204944.jpg
1214 ms
18929013.jpg
2348 ms
2T_01328.jpg
1102 ms
SDC12931.JPG
2876 ms
360.jpg
1470 ms
book_default.gif
1606 ms
BOK00019904263IN
1062 ms
KOR9791185392080
1071 ms
m9788957091593.jpg
1228 ms
000261.jpg
3813 ms
9788937834110.jpg
1691 ms
KOR9788984318427
1059 ms
medal_01.gif
1407 ms
b2.gif
1418 ms
medal_02.gif
1458 ms
b3.gif
1473 ms
medal_03.gif
1476 ms
stlink.php
738 ms
stlink.php
743 ms
inipay_74x74_color.png
1638 ms
acecounter_V70.js
1573 ms
b4.gif
1406 ms
b5.gif
1428 ms
twitter.jpg
1459 ms
facebook.jpg
1472 ms
b_tb01.gif
1475 ms
b_tb05.gif
1585 ms
b_tb02.gif
1404 ms
b_tb07.gif
1435 ms
FileServer
1468 ms
b_tb08.gif
1473 ms
b_tb03.gif
1476 ms
b_tb06.gif
1595 ms
b_tb04.gif
1391 ms
tit08.gif
1425 ms
g_tb01.gif
1496 ms
g_tb05.gif
1461 ms
g_tb02.gif
1562 ms
0003
1208 ms
g_tb07.gif
1560 ms
0199
1212 ms
tit10.gif
1432 ms
tit11.gif
1479 ms
g_tb08.gif
1503 ms
g_tb03.gif
1466 ms
g_tb06.gif
1552 ms
g_tb04.gif
1550 ms
f_bn01.gif
1441 ms
f_bn02.gif
1479 ms
tm_205_45.gif
1465 ms
f_bn04.gif
1460 ms
f_bn05.gif
1535 ms
f_bn06.gif
1395 ms
f_bn07.gif
1434 ms
f_bn08.gif
1453 ms
foot01.gif
1474 ms
logo02.gif
1462 ms
foot_m01.gif
1542 ms
ngc1.nsm-corp.com
1864 ms
foot_m02.gif
1393 ms
foot_m03.gif
1442 ms
foot_m04.gif
1447 ms
foot_m05.gif
1498 ms
foot_m06.gif
1482 ms
cot.gif
1530 ms
l9788990982117.jpg
1320 ms
bookoa.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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<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
Image elements do not have [alt] attributes
Links do not have a discernible name
bookoa.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
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
bookoa.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
KO
N/A
EUC-KR
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bookoa.com 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 Bookoa.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.
bookoa.com
Open Graph description is not detected on the main page of Bookoa. 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: