Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

n-a-u.jp

ガールズバーで遊びつくさNight!!

Page Load Speed

13.8 sec in total

First Response

1.9 sec

Resources Loaded

11.6 sec

Page Rendered

351 ms

n-a-u.jp screenshot

About Website

Click here to check amazing N A U content. Otherwise, check out these important facts you probably never knew about n-a-u.jp

音楽からマンガまで!デジタルデータ作品配信サイトnauはこちら!

Visit n-a-u.jp

Key Findings

We analyzed N-a-u.jp page load time and found that the first response time was 1.9 sec and then it took 12 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

n-a-u.jp performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value140 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value10.9 s

21/100

10%

Network Requests Diagram

n-a-u.jp

1859 ms

jqueryui.css

832 ms

styles.css

834 ms

nau-reset.css

343 ms

nau-style.css

1197 ms

Our browser made a total of 193 requests to load all elements on the main page. We found that 92% of them (177 requests) were addressed to the original N-a-u.jp, 2% (4 requests) were made to Platform.twitter.com and 2% (3 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (3.5 sec) belongs to the original domain N-a-u.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 659.4 kB (25%)

Content Size

2.6 MB

After Optimization

2.0 MB

In fact, the total size of N-a-u.jp main page is 2.6 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. 55% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 53.1 kB

  • Original 67.6 kB
  • After minification 61.7 kB
  • After compression 14.5 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 53.1 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 78.4 kB

  • Original 1.9 MB
  • After minification 1.8 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. N A U images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 364.2 kB

  • Original 521.3 kB
  • After minification 468.1 kB
  • After compression 157.1 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 364.2 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 163.7 kB

  • Original 196.9 kB
  • After minification 148.2 kB
  • After compression 33.2 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. N-a-u.jp needs all CSS files to be minified and compressed as it can save up to 163.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 89 (47%)

Requests Now

191

After Optimization

102

The browser has sent 191 CSS, Javascripts, AJAX and image requests in order to completely render the main page of N A U. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

n-a-u.jp accessibility score

85

Accessibility Issues

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

n-a-u.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

n-a-u.jp SEO score

93

Search Engine Optimization Advices

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

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 N-a-u.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 N-a-u.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

Open Graph data is detected on the main page of N A U. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: