Tools & Wizards About Us
truenorth.jp screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

truenorth.jp

TOP - トゥルーノース公式WEBサイト

Page Load Speed

8.1 sec in total

First Response

520 ms

Resources Loaded

6.4 sec

Page Rendered

1.2 sec

truenorth.jp screenshot

About Website

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.jp

Key Findings

We analyzed Truenorth.jp page load time and found that the first response time was 520 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

truenorth.jp performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value32.8 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.475

18/100

15%

TTI (Time to Interactive)

Value5.4 s

72/100

10%

Network Requests Diagram

truenorth.jp

520 ms

truenorth.jp

704 ms

577 ms

style.css

177 ms

sbi-styles.min.css

353 ms

Our browser made a total of 111 requests to load all elements on the main page. We found that all of those requests were addressed to Truenorth.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Truenorth.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (9%)

Content Size

18.1 MB

After Optimization

16.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Truenorth.jp main page is 18.1 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. 70% of websites need less resources to load. Images take 17.7 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 188.4 kB

  • Original 220.8 kB
  • After minification 212.7 kB
  • After compression 32.3 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. 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 188.4 kB or 85% of the original size.

Image Optimization

-8%

Potential reduce by 1.5 MB

  • Original 17.7 MB
  • After minification 16.3 MB

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.

JavaScript Optimization

-15%

Potential reduce by 15.6 kB

  • Original 104.2 kB
  • After minification 104.2 kB
  • After compression 88.5 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 15.6 kB or 15% of the original size.

CSS Optimization

-33%

Potential reduce by 24.7 kB

  • Original 74.6 kB
  • After minification 74.5 kB
  • After compression 49.9 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 24.7 kB or 33% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (32%)

Requests Now

98

After Optimization

67

  • Images
  • JavaScript
  • CSS

The browser has sent 98 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 20 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

truenorth.jp

truenorth.jp

520 ms

truenorth.jp

truenorth.jp

704 ms

577 ms

style.css

style.css

177 ms

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sbi-styles.min.css

353 ms

style.min.css

style.min.css

659 ms

styles.css

styles.css

495 ms

styles.css

styles.css

495 ms

style-index.css

style-index.css

509 ms

admin.css

admin.css

528 ms

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jquery.min.js

527 ms

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jquery-migrate.min.js

674 ms

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jquery.cookie.js

678 ms

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678 ms

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701 ms

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704 ms

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821 ms

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825 ms

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825 ms

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1017 ms

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875 ms

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878 ms

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983 ms

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987 ms

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index.js

987 ms

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index.js

1141 ms

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1142 ms

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1149 ms

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1152 ms

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1153 ms

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1184 ms

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1221 ms

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1228 ms

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1312 ms

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649 ms

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1095 ms

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1567 ms

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1258 ms

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176 ms

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176 ms

Accessibility Review

truenorth.jp accessibility score

83

Accessibility Issues

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

High

[aria-*] attributes do not match their roles

High

ARIA input fields do not have accessible names

High

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

High

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

High

Links do not have a discernible name

Best Practices

truenorth.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

truenorth.jp SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    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.

Social Sharing Optimization

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: