Tools & Wizards About Us
rollerfun.net screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

rollerfun.net

中国轮滑网 - 轮滑论坛|自由式轮滑|速度轮滑|轮滑马拉松|轮滑鞋|轮滑教程

Page Load Speed

11.7 sec in total

First Response

658 ms

Resources Loaded

10.9 sec

Page Rendered

135 ms

rollerfun.net screenshot

About Website

Visit rollerfun.net now to see the best up-to-date Rollerfun content for China and also check out these interesting facts you probably never knew about rollerfun.net

中国轮滑网（ROLLERFUN）成立于1999年，国内最专业的轮滑技术社区。提供自由式轮滑、速度轮滑、花样轮滑技巧教程，轮滑鞋与装备评测，以及轮滑马拉松活动资讯。

Visit rollerfun.net

Key Findings

We analyzed Rollerfun.net page load time and found that the first response time was 658 ms and then it took 11 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

rollerfun.net performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

83/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value7.3 s

28/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

rollerfun.net

658 ms

rollerfun.net

1362 ms

style_1_common.css

654 ms

style_1_forum_index.css

644 ms

common.js

1081 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that all of those requests were addressed to Rollerfun.net and no external sources were called. The less responsive or slowest element that took the longest time to load (8 sec) belongs to the original domain Rollerfun.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 42.0 kB (70%)

Content Size

59.7 kB

After Optimization

17.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rollerfun.net main page is 59.7 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. 30% of websites need less resources to load. HTML takes 51.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 41.0 kB

  • Original 51.4 kB
  • After minification 50.9 kB
  • After compression 10.4 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. 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 41.0 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 6.5 kB
  • After minification 6.5 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. Rollerfun images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 549 B

  • Original 986 B
  • After minification 986 B
  • After compression 437 B

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 549 B or 56% of the original size.

CSS Optimization

-62%

Potential reduce by 522 B

  • Original 840 B
  • After minification 786 B
  • After compression 318 B

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. Rollerfun.net needs all CSS files to be minified and compressed as it can save up to 522 B or 62% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (8%)

Requests Now

36

After Optimization

33

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rollerfun. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

rollerfun.net

rollerfun.net

658 ms

rollerfun.net

rollerfun.net

1362 ms

style_1_common.css

style_1_common.css

654 ms

style_1_forum_index.css

style_1_forum_index.css

644 ms

common.js

common.js

1081 ms

style_1_widthauto.css

style_1_widthauto.css

650 ms

forum.js

forum.js

877 ms

logging.js

logging.js

658 ms

forum_slide.js

forum_slide.js

857 ms

logo.png

logo.png

238 ms

wechat_login1.png

wechat_login1.png

244 ms

qq_login.gif

qq_login.gif

253 ms

common_45_icon.png

common_45_icon.png

329 ms

common_245_icon.png

common_245_icon.png

327 ms

common_249_icon.png

common_249_icon.png

235 ms

common_261_icon.png

common_261_icon.png

459 ms

common_19_icon.png

common_19_icon.png

474 ms

common_13_icon.png

common_13_icon.png

460 ms

common_32_icon.png

common_32_icon.png

468 ms

common_6_icon.png

common_6_icon.png

548 ms

common_10_icon.png

common_10_icon.png

549 ms

common_14_icon.png

common_14_icon.png

679 ms

common_17_icon.png

common_17_icon.png

680 ms

common_42_icon.png

common_42_icon.png

682 ms

common_240_icon.png

common_240_icon.png

691 ms

common_8_icon.png

common_8_icon.png

768 ms

common_23_icon.png

common_23_icon.png

769 ms

common_92_icon.png

common_92_icon.png

896 ms

site_qq.jpg

site_qq.jpg

897 ms

dzicon.woff

dzicon.woff

881 ms

160309bemhmvshtxuqtqnw.jpg

160309bemhmvshtxuqtqnw.jpg

1305 ms

221123oj9z3ht6jh932tgg.jpeg

221123oj9z3ht6jh932tgg.jpeg

2061 ms

152343othux3r4833lk8of.jpg

152343othux3r4833lk8of.jpg

1387 ms

144908f5gsq1kqsbvhbeto.jpg

144908f5gsq1kqsbvhbeto.jpg

3052 ms

111327z15j9gm5f5gjc9zt.jpg

111327z15j9gm5f5gjc9zt.jpg

4303 ms

114210s3outtr33yjy29t4.jpg

114210s3outtr33yjy29t4.jpg

7955 ms

183826dakufer2ylfol2ue.jpg

183826dakufer2ylfol2ue.jpg

4021 ms

112404dlmmlguuidtuzcjt.jpg

112404dlmmlguuidtuzcjt.jpg

1651 ms

125534foxyn30w0773a7kd.jpg

125534foxyn30w0773a7kd.jpg

3183 ms

161512hafa6k6btk3a3b0b.jpg

161512hafa6k6btk3a3b0b.jpg

3154 ms

Accessibility Review

rollerfun.net accessibility score

69

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

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

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

rollerfun.net 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

SEO Factors

rollerfun.net SEO score

91

Search Engine Optimization Advices

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rollerfun.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Rollerfun.net 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

rollerfun.net

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