Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

nikelab.jp

スニーカーラボ - https://nikelab.jp/wp

Page Load Speed

7.2 sec in total

First Response

2.1 sec

Resources Loaded

4.9 sec

Page Rendered

273 ms

nikelab.jp screenshot

About Website

Visit nikelab.jp now to see the best up-to-date Nikelab content for Japan and also check out these interesting facts you probably never knew about nikelab.jp

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Visit nikelab.jp

Key Findings

We analyzed Nikelab.jp page load time and found that the first response time was 2.1 sec and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

nikelab.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.0 s

4/100

10%

LCP (Largest Contentful Paint)

Value17.6 s

0/100

25%

SI (Speed Index)

Value11.0 s

6/100

10%

TBT (Total Blocking Time)

Value10,310 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value29.4 s

0/100

10%

Network Requests Diagram

nikelab.jp

2058 ms

autoptimize_7d7d2e71f845248e91b93b485635ced2.css

1134 ms

847652-400-_1-320x180.jpg

672 ms

820256-102-320x180.jpg

343 ms

848625-401-320x180.jpg

686 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 49% of them (17 requests) were addressed to the original Nikelab.jp, 11% (4 requests) were made to Pagead2.googlesyndication.com and 6% (2 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Nikelab.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 231.3 kB (38%)

Content Size

614.2 kB

After Optimization

382.8 kB

In fact, the total size of Nikelab.jp main page is 614.2 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. 45% of websites need less resources to load. Javascripts take 267.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 26.9 kB

  • Original 34.6 kB
  • After minification 34.6 kB
  • After compression 7.7 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 26.9 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 7.5 kB

  • Original 222.2 kB
  • After minification 214.7 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. Nikelab images are well optimized though.

JavaScript Optimization

-48%

Potential reduce by 128.3 kB

  • Original 267.3 kB
  • After minification 260.5 kB
  • After compression 138.9 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 128.3 kB or 48% of the original size.

CSS Optimization

-76%

Potential reduce by 68.6 kB

  • Original 90.2 kB
  • After minification 90.1 kB
  • After compression 21.5 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. Nikelab.jp needs all CSS files to be minified and compressed as it can save up to 68.6 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (33%)

Requests Now

33

After Optimization

22

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nikelab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

nikelab.jp accessibility score

81

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

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.

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

nikelab.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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

nikelab.jp SEO score

99

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nikelab.jp can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Japanese. Our system also found out that Nikelab.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 Nikelab. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: