Tools & Wizards About Us
swiftv.cn screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

swiftv.cn

SwiftV课堂 - 中国最大的Swift视频学习站

Page Load Speed

35.6 sec in total

First Response

2.2 sec

Resources Loaded

32.6 sec

Page Rendered

752 ms

swiftv.cn screenshot

About Website

Welcome to swiftv.cn homepage info - get ready to check Swift V best content for China right away, or after learning these important things about swiftv.cn

SwiftV课堂是国内氛围最好的swift学习、交流网站，提供上千套swift视频,swift教程免费观看，学Swift开发(iOS10 开发)就上SwiftV课堂。

Visit swiftv.cn

Key Findings

We analyzed Swiftv.cn page load time and found that the first response time was 2.2 sec and then it took 33.4 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

swiftv.cn performance score

0

Network Requests Diagram

swiftv.cn

2189 ms

www.swiftv.cn

5955 ms

bootstrap.css

2744 ms

bootstrap-extends.css

2052 ms

schoolweb.css

2894 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 12% of them (9 requests) were addressed to the original Swiftv.cn, 69% (53 requests) were made to Static.vlms.cn and 10% (8 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (15.6 sec) relates to the external source Q.qlogo.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 468.6 kB (23%)

Content Size

2.0 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Swiftv.cn main page is 2.0 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. 55% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 38.8 kB

  • Original 48.8 kB
  • After minification 42.8 kB
  • After compression 10.1 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 6.1 kB, which is 12% 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 38.8 kB or 79% of the original size.

Image Optimization

-7%

Potential reduce by 106.3 kB

  • Original 1.5 MB
  • After minification 1.4 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. Swift V images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 158.7 kB

  • Original 279.7 kB
  • After minification 270.7 kB
  • After compression 121.0 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 158.7 kB or 57% of the original size.

CSS Optimization

-84%

Potential reduce by 164.8 kB

  • Original 195.2 kB
  • After minification 166.1 kB
  • After compression 30.4 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. Swiftv.cn needs all CSS files to be minified and compressed as it can save up to 164.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (38%)

Requests Now

73

After Optimization

45

  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Swift V. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

swiftv.cn

swiftv.cn

2189 ms

www.swiftv.cn

www.swiftv.cn

5955 ms

bootstrap.css

bootstrap.css

2744 ms

bootstrap-extends.css

bootstrap-extends.css

2052 ms

schoolweb.css

schoolweb.css

2894 ms

upDown.css

upDown.css

2062 ms

jquery.min.js

jquery.min.js

2758 ms

main.js

main.js

2055 ms

JQscrollTop.js

JQscrollTop.js

2217 ms

updown.js

updown.js

2234 ms

autocomplete.js

autocomplete.js

1077 ms

sea.js

sea.js

1229 ms

seajs-style.js

seajs-style.js

1412 ms

seajs-global-config.js

seajs-global-config.js

1530 ms

55avatar.jpg

55avatar.jpg

5754 ms

100

100

15625 ms

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2987 ms

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1685 ms

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2665 ms

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3351 ms

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5120 ms

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564 ms

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455 ms

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786 ms

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326 ms

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539 ms

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324 ms

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342 ms

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ik8ikz5l.net

327 ms

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2072 ms

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752 ms

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1161 ms

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1055 ms

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911 ms

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1027 ms

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1529 ms

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1107 ms

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1199 ms

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1217 ms

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1277 ms

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1330 ms

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1288 ms

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1509 ms

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1475 ms

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1407 ms

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1641 ms

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i9gp0ppn.jpg

1693 ms

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i7akgh2u.jpg

1610 ms

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idzu6wsl.jpg

1635 ms

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2191 ms

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1725 ms

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hywfw0bp.png

1765 ms

100

100

15598 ms

100

100

15537 ms

stars.png

stars.png

1708 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

1740 ms

share.js

share.js

938 ms

seajs-school-config.js

seajs-school-config.js

2824 ms

app.js

app.js

143 ms

hm.js

hm.js

621 ms

analytics.js

analytics.js

119 ms

slide_api.js

slide_api.js

302 ms

slide_view.js

slide_view.js

539 ms

collect

collect

93 ms

jquery.js

jquery.js

326 ms

placeholder.js

placeholder.js

132 ms

bootstrap.js

bootstrap.js

137 ms

bootstrap-modal-hack.js

bootstrap-modal-hack.js

136 ms

tangram.js

tangram.js

1608 ms

api_base.js

api_base.js

516 ms

index.js

index.js

118 ms

view_base.js

view_base.js

280 ms

cycle2.js

cycle2.js

165 ms

hm.gif

hm.gif

314 ms

slide_share.css

slide_share.css

246 ms

logger.js

logger.js

260 ms

SEO Factors

swiftv.cn SEO score

0

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 Swiftv.cn 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 Swiftv.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

swiftv.cn

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