Tools & Wizards About Us
cztv.com screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

cztv.com

新蓝网

Page Load Speed

8 sec in total

First Response

645 ms

Resources Loaded

7.1 sec

Page Rendered

230 ms

cztv.com screenshot

About Website

Welcome to cztv.com homepage info - get ready to check Cztv best content for China right away, or after learning these important things about cztv.com

浙江广播电视集团新媒体，整合浙江卫视在内的18个广播电视频道的优势资源， 打造“浙江第一视频门户”，为网民提供互联网、通信网、电视网三网融合、无缝衔接的新媒体优质服务。

Visit cztv.com

Key Findings

We analyzed Cztv.com page load time and found that the first response time was 645 ms and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

cztv.com performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value15.1 s

1/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

Network Requests Diagram

cztv.com

645 ms

www.cztv.com

1772 ms

style_cztv20160122.css

973 ms

style_kz.css

1514 ms

jquery.js

1618 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Cztv.com, 42% (38 requests) were made to Res.cztv.com and 41% (37 requests) were made to Img01.cztv.com. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source Img01.cztv.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 278.6 kB (23%)

Content Size

1.2 MB

After Optimization

928.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cztv.com main page is 1.2 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. 30% of websites need less resources to load. Images take 821.0 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 112.4 kB

  • Original 132.5 kB
  • After minification 87.5 kB
  • After compression 20.2 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 45.1 kB, which is 34% 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 112.4 kB or 85% of the original size.

Image Optimization

-6%

Potential reduce by 49.6 kB

  • Original 821.0 kB
  • After minification 771.5 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. Cztv images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 110.8 kB

  • Original 221.9 kB
  • After minification 220.0 kB
  • After compression 111.1 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 110.8 kB or 50% of the original size.

CSS Optimization

-19%

Potential reduce by 5.9 kB

  • Original 31.1 kB
  • After minification 31.1 kB
  • After compression 25.3 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. Cztv.com needs all CSS files to be minified and compressed as it can save up to 5.9 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (29%)

Requests Now

89

After Optimization

63

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cztv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

cztv.com

cztv.com

645 ms

www.cztv.com

www.cztv.com

1772 ms

style_cztv20160122.css

style_cztv20160122.css

973 ms

style_kz.css

style_kz.css

1514 ms

jquery.js

jquery.js

1618 ms

jquery.nav.js

jquery.nav.js

1650 ms

tab_new.js

tab_new.js

1546 ms

bxCarousel.js

bxCarousel.js

1550 ms

cztv.public.js

cztv.public.js

1486 ms

videoplaybox_v8.js

videoplaybox_v8.js

2003 ms

extend.js

extend.js

1947 ms

swiper-4.3.3.min.js

swiper-4.3.3.min.js

194 ms

swiper-4.3.3.min.css

swiper-4.3.3.min.css

939 ms

316.js

316.js

828 ms

317.js

317.js

1601 ms

318.js

318.js

711 ms

gs.js

gs.js

327 ms

swfobject.js

swfobject.js

830 ms

logo_cztv_15n_2.png

logo_cztv_15n_2.png

116 ms

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739 ms

icon_serarch_15n.png

icon_serarch_15n.png

76 ms

icon_top.png

icon_top.png

102 ms

btn_sd.jpg

btn_sd.jpg

101 ms

more.png

more.png

101 ms

logo_ztv_foot.jpg

logo_ztv_foot.jpg

102 ms

beian.png

beian.png

155 ms

pic_nice_site.jpg

pic_nice_site.jpg

208 ms

pic_im01.jpg

pic_im01.jpg

204 ms

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pic_im02.jpg

156 ms

bottom_add_banner.jpg

bottom_add_banner.jpg

156 ms

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1058 ms

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1194 ms

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1170 ms

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1404 ms

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1201 ms

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1715 ms

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1348 ms

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1459 ms

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1499 ms

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1516 ms

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1648 ms

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1645 ms

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1680 ms

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1753 ms

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1806 ms

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2113 ms

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2094 ms

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1924 ms

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1950 ms

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185 ms

djs.jpg

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674 ms

icon_arrow2.png

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145 ms

icon_dot1.png

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144 ms

bg_news_2.png

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149 ms

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165 ms

bg_line2.png

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199 ms

icon_picture.png

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211 ms

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212 ms

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218 ms

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233 ms

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268 ms

latest

latest

1032 ms

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251 ms

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538 ms

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250 ms

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174 ms

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2094 ms

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icon_dot3.png

67 ms

Accessibility Review

cztv.com accessibility score

50

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

cztv.com 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

High

Page has valid source maps

SEO Factors

cztv.com SEO score

54

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

High

Page is blocked from indexing

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

    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 Cztv.com 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 Cztv.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

cztv.com

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