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about.nike.com screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

about.nike.com

Page Load Speed

232 ms in total

First Response

10 ms

Resources Loaded

222 ms

Page Rendered

0 ms

about.nike.com screenshot

About Website

Visit about.nike.com now to see the best up-to-date About Nike content for United States and also check out these interesting facts you probably never knew about about.nike.com

Visit about.nike.com

Key Findings

We analyzed About.nike.com page load time and found that the first response time was 10 ms and then it took 222 ms to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

about.nike.com performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value13.9 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value970 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

about.nike.com

10 ms

en

28 ms

js

120 ms

26ecc526a369aa94.css

12 ms

polyfills-5cd94c89d3acac5f.js

29 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 95% of them (21 requests) were addressed to the original About.nike.com, 5% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (120 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 27.9 kB (7%)

Content Size

427.4 kB

After Optimization

399.6 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of About.nike.com main page is 427.4 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. 60% of websites need less resources to load. Javascripts take 389.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 27.1 kB

  • Original 34.7 kB
  • After minification 34.7 kB
  • After compression 7.6 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 27.1 kB or 78% of the original size.

JavaScript Optimization

-0%

Potential reduce by 707 B

  • Original 389.3 kB
  • After minification 389.3 kB
  • After compression 388.6 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

-1%

Potential reduce by 29 B

  • Original 3.4 kB
  • After minification 3.4 kB
  • After compression 3.4 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. About.nike.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (90%)

Requests Now

20

After Optimization

2

  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of About Nike. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

about.nike.com

about.nike.com

10 ms

en

en

28 ms

js

js

120 ms

26ecc526a369aa94.css

26ecc526a369aa94.css

12 ms

polyfills-5cd94c89d3acac5f.js

polyfills-5cd94c89d3acac5f.js

29 ms

webpack-e6009d93b3ce9de2.js

webpack-e6009d93b3ce9de2.js

29 ms

framework-a070cbfff3c750c5.js

framework-a070cbfff3c750c5.js

45 ms

main-10661b987530569b.js

main-10661b987530569b.js

25 ms

_app-aa2ed4b076bb3078.js

_app-aa2ed4b076bb3078.js

44 ms

39dcb045-b4215593db117117.js

39dcb045-b4215593db117117.js

28 ms

7772-5c59d185d494a206.js

7772-5c59d185d494a206.js

73 ms

5006-85c544d2177e7820.js

5006-85c544d2177e7820.js

80 ms

379-a7391f2360db30a6.js

379-a7391f2360db30a6.js

75 ms

8142-12e0ecc024fcc181.js

8142-12e0ecc024fcc181.js

79 ms

2544-864c3cca34f89318.js

2544-864c3cca34f89318.js

77 ms

2071-16ad6b63436b99a5.js

2071-16ad6b63436b99a5.js

76 ms

5004-426cef8ecc32e7ad.js

5004-426cef8ecc32e7ad.js

76 ms

8627-f4dca91da456b6d6.js

8627-f4dca91da456b6d6.js

84 ms

%5Blang%5D-9e0f0ec01f7f3268.js

%5Blang%5D-9e0f0ec01f7f3268.js

90 ms

_buildManifest.js

_buildManifest.js

91 ms

_ssgManifest.js

_ssgManifest.js

93 ms

_middlewareManifest.js

_middlewareManifest.js

92 ms

Accessibility Review

about.nike.com accessibility score

98

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

about.nike.com best practices score

92

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

SEO Factors

about.nike.com SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise About.nike.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that About.nike.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

about.nike.com

Open Graph description is not detected on the main page of About Nike. 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: