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Web Frameworks

84 cntv.cn Last Updated: 12 months

Success 54% of passed verification steps
Warning 23% of total warning
Errors 23% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 77%
Best Practices Desktop Score 46%
SEO Desktop Score 78%
Progressive Web App Desktop Score 8%
Performance Mobile Score 49%
Best Practices Mobile Score 46%
SEO Mobile Score 64%
Progressive Web App Mobile Score 33%
Page Authority Authority 63%
Domain Authority Domain Authority 86%
Moz Rank 6.3/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 10 Characters
央视网_世界就在眼前
Meta Description 138 Characters
央视网(www.cctv.com)由中央广播电视总台主办,是以视频为特色的中央重点新闻网站,是央视的融合传播平台,是拥有全牌照业务资质的大型互联网文化企业。秉承“融合创新、一体发展”的理念,以新闻为龙头,以视频为重点,以用户为中心,建成“一网一端多平台多渠道”融媒体传播体系。
Effective URL 19 Characters
http://www.cctv.com
Excerpt Page content
央视网_世界就在眼前 时政 新闻 视频 经济 评论 体育 军事 熊猫频道 直播中国 超高清 CCTV.直播 ...
Keywords Cloud Density
cctv36 国防军事早报8 社会新闻7 熊猫频道4 健康之路4 焦点访谈4 回声嘹亮4 军事报道4 直播中国4 百家讲坛4
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
cctv 36
国防军事早报 8
社会新闻 7
熊猫频道 4
健康之路 4
焦点访谈 4
回声嘹亮 4
军事报道 4
直播中国 4
百家讲坛 4
Google Preview Your look like this in google search result
央视网_世界就在眼前
http://www.cctv.com
央视网(www.cctv.com)由中央广播电视总台主办,是以视频为特色的中央重点新闻网站,是央视的融合传播平台,是拥有全牌照业务资质的大型互联网文化企业。秉承“融合创新、一体发展”的理念,以新闻为龙头,以视频为重点,以用户为中心,建成“一网一端多平台多渠道”融媒体传播体系。
Robots.txt File No Found
Sitemap.xml File No Found
Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system
Updated: 1970-01-01 / 51 years
Create on: 1970-01-01 / 51 years
Expires on: 1970-01-01 / 619 months 19 days

Nameservers
ns3.dnsv4.com
ns4.dnsv4.com
Page Size Code & Text Ratio
Document Size: ~321.13 KB
Code Size: ~319.4 KB
Text Size: ~1.73 KB Ratio: 0.54%

Estimation Traffic and Earnings

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Technologies

PWA - Manifest

Manifest is not valid
Your site don't have valid manifest.json, read more in Web App Manifest

Desktop

Desktop Screenshot
Serve images in next-gen formats Potential savings of 1,055 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Does not use HTTPS 140 insecure requests found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Server response times are low (TTFB) Root document took 370 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 0 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 431 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 140 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Total Blocking Time 70 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.7 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Defer offscreen images Potential savings of 1,129 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Properly size images Potential savings of 702 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 3.3 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 1.2 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoids enormous network payloads Total size was 2,167 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 2.7 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 0.7 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 3 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 13 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoid an excessive DOM size 4,660 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Minify JavaScript Potential savings of 28 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 0.7 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 160 requests • 2,167 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 151 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 90 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 1.9 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Page load is not fast enough on mobile networks Interactive on simulated mobile network at 10.3 s
A fast page load over a cellular network ensures a good mobile user experience
Estimated Input Latency 20 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
Minify CSS Potential savings of 2 KB
Minifying CSS files can reduce network payload sizes
Remove unused CSS Potential savings of 15 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity

Mobile

Mobile Screenshot
Avoid chaining critical requests 13 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoid an excessive DOM size 4,666 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Minify JavaScript Potential savings of 55 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 2.5 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 194 requests • 3,286 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 180 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 650 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 8.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
First Contentful Paint (3G) 3417 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Estimated Input Latency 750 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
Minify CSS Potential savings of 2 KB
Minifying CSS files can reduce network payload sizes
Remove unused CSS Potential savings of 15 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Serve images in next-gen formats Potential savings of 1,919 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Does not use HTTPS 163 insecure requests found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Server response times are low (TTFB) Root document took 60 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 0 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 740 KB
Optimized images load faster and consume less cellular data
Reduce the impact of third-party code Third-party code blocked the main thread for 1,000 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Total Blocking Time 1,340 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 5.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Defer offscreen images Potential savings of 587 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Properly size images Potential savings of 270 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 7.7 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 6.8 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoid enormous network payloads Total size was 3,286 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 15.6 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 2.5 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 3 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Speed And Optimization Tips

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Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/1.1 200 OK
Content-Type: text/html
Content-MD5: wIgotB03Wtk3jIA4bqpZbw==
Server: CCTVCLOUD
X-UA-Compatible: IE=Edge
Vary: Accept-Encoding
Content-Encoding: gzip
Cache-Control: max-age=177
Expires: Mon, 09 Dec 2019 10:40:46 GMT
Date: Mon, 09 Dec 2019 10:37:49 GMT
Content-Length: 20
Connection: keep-alive
X-AK-Request-ID: 0.2483d717.1575887869.5986dc1e
cdnsip: 104.107.25.254
cdncip: 167.172.22.30
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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