4.9 sec in total
561 ms
4.1 sec
297 ms
Click here to check amazing Estudy Obunsha content for Japan. Otherwise, check out these important facts you probably never knew about estudy.obunsha.co.jp
Visit estudy.obunsha.co.jpWe analyzed Estudy.obunsha.co.jp page load time and found that the first response time was 561 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
estudy.obunsha.co.jp performance score
name
value
score
weighting
Value2.7 s
61/100
10%
Value4.9 s
28/100
25%
Value4.1 s
80/100
10%
Value20 ms
100/100
30%
Value0.078
95/100
15%
Value2.7 s
97/100
10%
561 ms
1158 ms
371 ms
1134 ms
972 ms
Our browser made a total of 63 requests to load all elements on the main page. We found that 97% of them (61 requests) were addressed to the original Estudy.obunsha.co.jp, 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Estudy.obunsha.co.jp.
Page size can be reduced by 27.8 kB (4%)
724.9 kB
697.1 kB
In fact, the total size of Estudy.obunsha.co.jp main page is 724.9 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 674.2 kB which makes up the majority of the site volume.
Potential reduce by 18.4 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 5.2 kB, which is 24% 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 18.4 kB or 85% of the original size.
Potential reduce by 27 B
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. Estudy Obunsha images are well optimized though.
Potential reduce by 34 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 9.4 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. Estudy.obunsha.co.jp needs all CSS files to be minified and compressed as it can save up to 9.4 kB or 78% of the original size.
Number of requests can be reduced by 10 (16%)
61
51
The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Estudy Obunsha. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for CSS and as a result speed up the page load time.
estudy.obunsha.co.jp
561 ms
index.cgi
1158 ms
import.css
371 ms
book_zerokan_china_vol2.jpg
1134 ms
book_zerokan_korea_vol2.jpg
972 ms
book_kanji_N1big.jpg
1088 ms
book_tango_N2big.jpg
1077 ms
book_toeic_mastery3.jpg
1166 ms
book_toeic_hyper4.jpg
968 ms
pagebody_title.jpg
1305 ms
book_testhyper.jpg
995 ms
book_testhyperMasterLee.jpg
1124 ms
book_MasterLee2000.jpg
1109 ms
book_MasterLee2000_2.jpg
1172 ms
book_hyperMoshi.jpg
1168 ms
book_hyperMoshi_2.jpg
1173 ms
book_hyper600.jpg
1276 ms
book_sokkou.jpg
1319 ms
book_toeicListeningFirst.jpg
1162 ms
book_toeicReadingFirst.jpg
1182 ms
book_toeicListening600.jpg
1192 ms
book_toeicReading600.jpg
1173 ms
book_toeicListening730.jpg
1285 ms
book_toeicReading730.jpg
1324 ms
bt_mypage.gif
1354 ms
bt_member.gif
1330 ms
book_zerokan_ch_vol2.jpg
1347 ms
book_zerokan_ko_vol2.jpg
1359 ms
book_zerokan_ch.jpg
1415 ms
book_zerokan_ko.jpg
1449 ms
banner_obunsha_chinese_01.jpg
1459 ms
init.css
1495 ms
global.css
1518 ms
layout.css
1523 ms
content.css
1580 ms
bgimg.css
1597 ms
banner_obunsha_korean_01.jpg
1554 ms
pod_zerokan_ch.jpg
1594 ms
pod_zerokan_ko.jpg
1596 ms
book_kanji_N1.jpg
1116 ms
book_tango_N1.jpg
1153 ms
book_kanji_N2.jpg
1052 ms
book_tango_N2.jpg
1054 ms
banner_JLPT.jpg
1323 ms
book_Listen.jpg
1096 ms
ga.js
36 ms
bg_left.jpg
296 ms
bg_right.jpg
323 ms
bg.jpg
655 ms
top_logo.gif
326 ms
bt_rule.gif
443 ms
bt_faq.gif
473 ms
title_ebooks.jpg
654 ms
pagebody_right_bg.jpg
484 ms
pagebody_inner_bg.jpg
615 ms
title_toeictest.gif
651 ms
bt_weblist.gif
674 ms
bt_shoppingsite.gif
639 ms
title_toeictest2.gif
787 ms
title_zerokan.gif
797 ms
title_JLPT.gif
828 ms
title_other.gif
814 ms
__utm.gif
12 ms
estudy.obunsha.co.jp accessibility score
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>).
estudy.obunsha.co.jp 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
estudy.obunsha.co.jp SEO score
JA
N/A
EUC-JP
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Estudy.obunsha.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 Estudy.obunsha.co.jp main page’s claimed encoding is euc-jp. 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.
estudy.obunsha.co.jp
Open Graph description is not detected on the main page of Estudy Obunsha. 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: