Tools & Wizards About Us
na-just.com screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

na-just.com

取材や監修・コメント依頼など、ご要望にあった専門家(コメンテーター、アドバイザー、監修者等)をつなぐ【専門家NAVI ナビ】

Page Load Speed

3.1 sec in total

First Response

538 ms

Resources Loaded

2.3 sec

Page Rendered

276 ms

na-just.com screenshot

About Website

Visit na-just.com now to see the best up-to-date Na Just content and also check out these interesting facts you probably never knew about na-just.com

専門家NAVI ナビでは企業の商品開発やPR、取材や監修・コメント依頼など、ご要望にあった専門家(コメンテーター、アドバイザー、監修者等)をつなぐお手伝いをします。協力いただける専門家の方も随時募集中。

Visit na-just.com

Key Findings

We analyzed Na-just.com page load time and found that the first response time was 538 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

na-just.com performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

69/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

na-just.com

538 ms

import.css

173 ms

jsapi

7 ms

function.js

331 ms

jquery.easingscroll.js

340 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 94% of them (48 requests) were addressed to the original Na-just.com, 2% (1 request) were made to Google.com and 2% (1 request) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Na-just.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 17.7 kB (26%)

Content Size

69.5 kB

After Optimization

51.8 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Na-just.com main page is 69.5 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. 15% of websites need less resources to load. Javascripts take 45.7 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 16.0 kB

  • Original 21.4 kB
  • After minification 17.4 kB
  • After compression 5.4 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 3.9 kB, which is 18% 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 16.0 kB or 75% of the original size.

JavaScript Optimization

-3%

Potential reduce by 1.3 kB

  • Original 45.7 kB
  • After minification 45.6 kB
  • After compression 44.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-15%

Potential reduce by 364 B

  • Original 2.4 kB
  • After minification 2.4 kB
  • After compression 2.0 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. Na-just.com needs all CSS files to be minified and compressed as it can save up to 364 B or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (24%)

Requests Now

49

After Optimization

37

  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Na Just. 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 as a result speed up the page load time.

Network Requests Diagram

na-just.com

na-just.com

538 ms

import.css

import.css

173 ms

jsapi

jsapi

7 ms

function.js

function.js

331 ms

jquery.easingscroll.js

jquery.easingscroll.js

340 ms

loader.js

loader.js

22 ms

main.css

main.css

178 ms

jquery.min.js

jquery.min.js

67 ms

navi_back.gif

navi_back.gif

174 ms

logo.gif

logo.gif

184 ms

navis1_o.gif

navis1_o.gif

173 ms

navis1.gif

navis1.gif

332 ms

navis2_o.gif

navis2_o.gif

333 ms

navis2.gif

navis2.gif

332 ms

navis3_o.gif

navis3_o.gif

351 ms

navis3.gif

navis3.gif

350 ms

navi1_o.gif

navi1_o.gif

359 ms

navi1.gif

navi1.gif

500 ms

navi2_o.gif

navi2_o.gif

499 ms

navi2.gif

navi2.gif

499 ms

navi3_o.gif

navi3_o.gif

521 ms

navi3.gif

navi3.gif

520 ms

navi4_o.gif

navi4_o.gif

529 ms

navi4.gif

navi4.gif

665 ms

navi5_o.gif

navi5_o.gif

666 ms

navi5.gif

navi5.gif

666 ms

mainimage.gif

mainimage.gif

859 ms

title_about.gif

title_about.gif

691 ms

about_img.gif

about_img.gif

699 ms

bnr_najust-blog.gif

bnr_najust-blog.gif

831 ms

totop.gif

totop.gif

832 ms

title_flow.gif

title_flow.gif

842 ms

foot_back-btm.gif

foot_back-btm.gif

860 ms

foot_back-top.gif

foot_back-top.gif

871 ms

flow_1.gif

flow_1.gif

997 ms

foot_back-mid.gif

foot_back-mid.gif

997 ms

flow_2.gif

flow_2.gif

1009 ms

flow_3.gif

flow_3.gif

1031 ms

flow_4.gif

flow_4.gif

1032 ms

flow_5.gif

flow_5.gif

1039 ms

btn_contact1_o.gif

btn_contact1_o.gif

1167 ms

btn_contact1.gif

btn_contact1.gif

1163 ms

btn_contact2_o.gif

btn_contact2_o.gif

1177 ms

btn_contact2.gif

btn_contact2.gif

1150 ms

title_list.gif

title_list.gif

1033 ms

title_list_s1.gif

title_list_s1.gif

1041 ms

title_list_s2.gif

title_list_s2.gif

1151 ms

foot_line.gif

foot_line.gif

1005 ms

btn_najust_o.gif

btn_najust_o.gif

1015 ms

btn_najust.gif

btn_najust.gif

1045 ms

m_bunner_logo.gif

m_bunner_logo.gif

1027 ms

Accessibility Review

na-just.com accessibility score

65

Accessibility Issues

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

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

na-just.com best practices score

50

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

na-just.com SEO score

67

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Na-just.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 Na-just.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.

Social Sharing Optimization

na-just.com

Open Graph description is not detected on the main page of Na Just. 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: