13 sec in total
548 ms
12.1 sec
287 ms
Welcome to denken3.com homepage info - get ready to check Denken 3 best content for Japan right away, or after learning these important things about denken3.com
翔泳社アカデミーの通信講座
Visit denken3.comWe analyzed Denken3.com page load time and found that the first response time was 548 ms and then it took 12.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
denken3.com performance score
name
value
score
weighting
Value5.0 s
9/100
10%
Value8.9 s
1/100
25%
Value11.3 s
5/100
10%
Value380 ms
70/100
30%
Value0.463
19/100
15%
Value18.3 s
3/100
10%
548 ms
1625 ms
504 ms
531 ms
538 ms
Our browser made a total of 112 requests to load all elements on the main page. We found that 71% of them (80 requests) were addressed to the original Denken3.com, 3% (3 requests) were made to Platform.twitter.com and 2% (2 requests) were made to Cm.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (4.7 sec) belongs to the original domain Denken3.com.
Page size can be reduced by 298.4 kB (26%)
1.1 MB
835.1 kB
In fact, the total size of Denken3.com main page is 1.1 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. 40% of websites need less resources to load. Images take 697.7 kB which makes up the majority of the site volume.
Potential reduce by 46.0 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 46.0 kB or 75% of the original size.
Potential reduce by 37 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. Denken 3 images are well optimized though.
Potential reduce by 177.2 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 177.2 kB or 62% of the original size.
Potential reduce by 75.1 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. Denken3.com needs all CSS files to be minified and compressed as it can save up to 75.1 kB or 83% of the original size.
Number of requests can be reduced by 46 (43%)
107
61
The browser has sent 107 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Denken 3. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
denken3.com
548 ms
www.denken3.com
1625 ms
common.css
504 ms
style2.css
531 ms
slick.css
538 ms
styles.css
552 ms
style.css
570 ms
style.css
571 ms
jquery.js
1561 ms
jquery-migrate.min.js
1067 ms
responsive-modernizr.js
1071 ms
ga.js
1136 ms
slick.min.js
1164 ms
gs_flash_115-57_ja.js
29 ms
m5lazydisplay.js
1160 ms
equalbox.js
1600 ms
common3.js
1649 ms
jquery.marquee.min.js
1718 ms
jquery.form.min.js
1734 ms
scripts.js
1769 ms
responsive-scripts.js
2091 ms
s_retargeting.js
900 ms
pixel.js
62 ms
wp-emoji-release.min.js
1615 ms
analytics.js
59 ms
gs_noscript_115-57_ja.gif
10 ms
h1_logo.png
692 ms
btn_login.png
663 ms
tel_h-2.png
676 ms
btn_shiryo3-2.png
746 ms
gN01.png
1027 ms
gN02.png
1136 ms
gN03.png
1189 ms
gN04.png
1231 ms
gN05.png
1372 ms
slide07.png
1734 ms
slide06.png
2013 ms
slide02.png
2170 ms
slide03.jpg
3062 ms
slide04.png
2298 ms
slide01.jpg
3237 ms
slide05.png
2767 ms
slide07_s.png
2569 ms
slide06_s.png
2736 ms
slide02_s.png
2822 ms
slide03_s.png
3174 ms
slide04_s.png
3270 ms
slide01_s.png
3389 ms
slide05_s.png
3418 ms
home-bn01.png
3662 ms
home-bn02.png
3824 ms
home-bn03.png
3834 ms
home-bn04.png
3826 ms
home-bn05.png
3925 ms
sdk.js
258 ms
home-bn06.png
3954 ms
home-bn07.png
4187 ms
like.php
152 ms
widgets.js
136 ms
siteSeal.do
1609 ms
collect
6 ms
collect
60 ms
home-bn08.png
4279 ms
bnr_shiryo201508.png
4653 ms
ga-audiences
39 ms
btn_ichiran_s.png
4302 ms
TY3MhkXpWJ-.js
290 ms
LVx-xkvaJ0b.png
329 ms
top_img02a.png
4314 ms
56 ms
xd_arbiter.php
266 ms
tag.js
23 ms
top_img02b.png
4021 ms
top_img02c.png
4261 ms
top_img02d.png
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content-btm-bn01.png
4339 ms
content-btm-bn02.png
4326 ms
side01.png
4275 ms
side02-2.png
4320 ms
pixel
152 ms
side10.png
4263 ms
side03.png
4388 ms
side04.png
4316 ms
pixel
123 ms
Pug
129 ms
sync.ad-stir.com
605 ms
sync
110 ms
sync
939 ms
is
1224 ms
button.0308b81ff1714e446f674b5b9793f2cd.js
46 ms
side08.png
4252 ms
sd
7 ms
pixel
18 ms
152 ms
tweet_button.b9740740e0bcf9b0657c5b11bd4388da.ja.html
47 ms
jot
89 ms
siteSealImage.do
725 ms
side09.png
3885 ms
mapuser
153 ms
side13.png
4272 ms
denken_navi.gif
3796 ms
front-page-nav01.png
3783 ms
front-page-nav02.png
3575 ms
front-page-nav03.png
3413 ms
front-page-nav04.png
3391 ms
front-page-nav05.png
3676 ms
front-page-nav06.png
3509 ms
front-page-nav07.png
3507 ms
front-page-nav08.png
3488 ms
tosho.png
3493 ms
footer_logo.png
3454 ms
print.css
224 ms
denken3.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
denken3.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
General
Impact
Issue
Detected JavaScript libraries
denken3.com SEO score
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
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Denken3.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Denken3.com 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.
denken3.com
Open Graph data is detected on the main page of Denken 3. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: