Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 74

    SEO

    Google-friendlier than
    31% of websites

nissan.co.jp

日産自動車ホームページ

Page Load Speed

17.9 sec in total

First Response

412 ms

Resources Loaded

17.3 sec

Page Rendered

190 ms

nissan.co.jp screenshot

About Website

Welcome to nissan.co.jp homepage info - get ready to check Nissan best content for Japan right away, or after learning these important things about nissan.co.jp

日産自動車株式会社 オフィシャルWEBサイト「羅針盤」

Visit nissan.co.jp

Key Findings

We analyzed Nissan.co.jp page load time and found that the first response time was 412 ms and then it took 17.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

nissan.co.jp performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value18.1 s

0/100

10%

TBT (Total Blocking Time)

Value8,640 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.375

28/100

15%

TTI (Time to Interactive)

Value50.4 s

0/100

10%

Network Requests Diagram

nissan.co.jp

412 ms

www.nissan.co.jp

406 ms

www.nissan.co.jp

345 ms

gtm.js

81 ms

nwow-small-pre.min.css

310 ms

Our browser made a total of 469 requests to load all elements on the main page. We found that 50% of them (233 requests) were addressed to the original Nissan.co.jp, 9% (44 requests) were made to Img.ak.impact-ad.jp and 5% (24 requests) were made to Www2.nissan.co.jp. The less responsive or slowest element that took the longest time to load (4.4 sec) belongs to the original domain Nissan.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (16%)

Content Size

6.7 MB

After Optimization

5.6 MB

In fact, the total size of Nissan.co.jp main page is 6.7 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. Only a small number of websites need less resources to load. Images take 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 360.0 kB

  • Original 407.5 kB
  • After minification 346.4 kB
  • After compression 47.4 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 61.0 kB, which is 15% 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 360.0 kB or 88% of the original size.

Image Optimization

-1%

Potential reduce by 24.5 kB

  • Original 4.9 MB
  • After minification 4.9 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. Nissan images are well optimized though.

JavaScript Optimization

-36%

Potential reduce by 307.5 kB

  • Original 862.9 kB
  • After minification 834.4 kB
  • After compression 555.4 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 307.5 kB or 36% of the original size.

CSS Optimization

-70%

Potential reduce by 363.4 kB

  • Original 516.7 kB
  • After minification 464.2 kB
  • After compression 153.2 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. Nissan.co.jp needs all CSS files to be minified and compressed as it can save up to 363.4 kB or 70% of the original size.

Requests Breakdown

Number of requests can be reduced by 208 (61%)

Requests Now

341

After Optimization

133

The browser has sent 341 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nissan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 130 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nissan.co.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-hidden="true"] elements contain focusable descendents

High

[role] values are not valid

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

nissan.co.jp best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nissan.co.jp SEO score

74

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

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

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 Nissan.co.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 Nissan.co.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 description is not detected on the main page of Nissan. 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: