6.1 sec in total
779 ms
4.8 sec
470 ms
Click here to check amazing Truenorth content for Japan. Otherwise, check out these important facts you probably never knew about truenorth.jp
東京・千葉・沖縄でダイビングショップを展開しているトゥルーノースグループ。スキューバダイビング・フリーダビング・ドルフィンスイム・スキンダイビングのスクール&ツアー、海洋実習からプール講習まで幅広く開催!
Visit truenorth.jpWe analyzed Truenorth.jp page load time and found that the first response time was 779 ms and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
truenorth.jp performance score
name
value
score
weighting
Value4.9 s
10/100
10%
Value31.5 s
0/100
25%
Value14.0 s
1/100
10%
Value2,420 ms
5/100
30%
Value0.475
18/100
15%
Value8.9 s
35/100
10%
779 ms
374 ms
374 ms
376 ms
597 ms
Our browser made a total of 68 requests to load all elements on the main page. We found that 94% of them (64 requests) were addressed to the original Truenorth.jp, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to I.yimg.jp. The less responsive or slowest element that took the longest time to load (2.4 sec) belongs to the original domain Truenorth.jp.
Page size can be reduced by 293.7 kB (10%)
2.8 MB
2.5 MB
In fact, the total size of Truenorth.jp main page is 2.8 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. 45% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.
Potential reduce by 26.3 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 4.5 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 26.3 kB or 81% of the original size.
Potential reduce by 86.9 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. Truenorth images are well optimized though.
Potential reduce by 158.4 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 158.4 kB or 69% of the original size.
Potential reduce by 22.1 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. Truenorth.jp needs all CSS files to be minified and compressed as it can save up to 22.1 kB or 82% of the original size.
Number of requests can be reduced by 16 (25%)
63
47
The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Truenorth. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
truenorth.jp
779 ms
index.css
374 ms
SpryMenuBarHorizontal.css
374 ms
index.js
376 ms
SpryMenuBar.js
597 ms
flexslider.css
408 ms
new_index.css
423 ms
info.css
559 ms
colorbox.css
555 ms
jquery.min.js
562 ms
jquery-1.11.2.min.js
1271 ms
jquery.flexslider.js
1051 ms
jquery.colorbox.js
922 ms
jquery.colorbox-min.js
745 ms
doc_async.js
750 ms
sample.js
791 ms
ga.js
7 ms
__utm.gif
19 ms
yjlogo_type4.gif
550 ms
Ed9XHHNKNp4mOniLfeu73ajEK2DNdvUcGHCl.gif
570 ms
index_bg.png
2155 ms
top_logo_ad.png
566 ms
main_navi_01_01.png
200 ms
main_navi_02_01.png
212 ms
main_navi_03_01.png
200 ms
main_navi_06_01.png
187 ms
main_navi_04_01.png
371 ms
main_navi_05_01.png
398 ms
fla_dami.png
1995 ms
index_bt01.jpg
632 ms
index_bt02.jpg
924 ms
index_bt03.jpg
994 ms
index_bt04.jpg
939 ms
index_bt05.jpg
1051 ms
index_bt06.jpg
1293 ms
index_bt07.jpg
1314 ms
index_bt08.jpg
1391 ms
index_bt09.jpg
1262 ms
index_bt10.jpg
1474 ms
index_bt11.jpg
1478 ms
index_bt12.jpg
1503 ms
index_bt13.jpg
1590 ms
index_bt14.jpg
1683 ms
index_bt15.jpg
1663 ms
index_headline4.jpg
1691 ms
top_schedule.png
1986 ms
top_movie_btn.png
2031 ms
facebook_btn.jpg
1893 ms
line_btn.jpg
1878 ms
contact_mail_btn.jpg
2067 ms
contact_tel_btn.jpg
2103 ms
top_title_site_01.png
2184 ms
top_site_map.png
2391 ms
top_site_01-02.png
2215 ms
top_site_03-02.png
2254 ms
top_site_02-02.png
2292 ms
news01.php
2155 ms
top_site_04-02.png
2192 ms
top_site_06-02.png
2209 ms
top_site_05-02.png
2241 ms
SpryMenuBarDown.gif
2162 ms
SpryMenuBarRight.gif
2131 ms
index_headline1.jpg
2026 ms
index_headline2.jpg
1965 ms
index_headline3.jpg
1669 ms
SpryMenuBarDownHover.gif
1699 ms
SpryMenuBarRightHover.gif
1722 ms
flexslider-icon.woff
189 ms
truenorth.jp 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-*] attributes do not match their roles
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
Links do not have a discernible name
truenorth.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
truenorth.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Truenorth.jp 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 Truenorth.jp 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.
truenorth.jp
Open Graph description is not detected on the main page of Truenorth. 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: