Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

sirkicks.cn

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Page Load Speed

33.7 sec in total

First Response

5.5 sec

Resources Loaded

28 sec

Page Rendered

267 ms

sirkicks.cn screenshot

About Website

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Key Findings

We analyzed Sirkicks.cn page load time and found that the first response time was 5.5 sec and then it took 28.2 sec 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. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

sirkicks.cn performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

58/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value6.7 s

37/100

10%

TBT (Total Blocking Time)

Value470 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.088

93/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

sirkicks.cn

5460 ms

www.sirsneaker.cn

2009 ms

830 ms

style.css

183 ms

jquery.lightbox-0.5.css

166 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Sirkicks.cn, 48% (59 requests) were made to Sirsneaker.cn and 10% (12 requests) were made to Www7.53kf.com. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source Js.users.51.la.

Page Optimization Overview & Recommendations

Page size can be reduced by 979.3 kB (63%)

Content Size

1.6 MB

After Optimization

573.3 kB

In fact, the total size of Sirkicks.cn main page is 1.6 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. 65% of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 151.3 kB

  • Original 173.4 kB
  • After minification 132.1 kB
  • After compression 22.1 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 41.3 kB, which is 24% 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 151.3 kB or 87% of the original size.

Image Optimization

-10%

Potential reduce by 24.4 kB

  • Original 245.7 kB
  • After minification 221.3 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. Sir Kicks images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 732.2 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 314.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 732.2 kB or 70% of the original size.

CSS Optimization

-82%

Potential reduce by 71.4 kB

  • Original 86.8 kB
  • After minification 80.7 kB
  • After compression 15.4 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. Sirkicks.cn needs all CSS files to be minified and compressed as it can save up to 71.4 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (40%)

Requests Now

111

After Optimization

67

The browser has sent 111 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sir Kicks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sirkicks.cn accessibility score

42

Accessibility Issues

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

sirkicks.cn 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

sirkicks.cn SEO score

58

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

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 Sirkicks.cn 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 Sirkicks.cn 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 Sir Kicks. 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: