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Web Frameworks

19 chinadd.cn Last Updated: 10 months

Success 63% of passed verification steps
Warning 7% of total warning
Errors 30% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 68%
Best Practices Desktop Score 69%
SEO Desktop Score 80%
Progressive Web App Desktop Score 12%
Performance Mobile Score 33%
Best Practices Mobile Score 77%
SEO Mobile Score 90%
Progressive Web App Mobile Score 56%
Page Authority Authority 43%
Domain Authority Domain Authority 1%
Moz Rank 4.3/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 24 Characters
集成吊顶_中国集成吊顶行业门户领跑者-中华顶墙网
Meta Description 91 Characters
中华顶墙网-中国优质的集成吊顶门户,包括上千家集成吊顶生产厂家和品牌;汇集全面的集成吊顶招商、集成吊顶加盟代理、吊顶配件、吊顶人才、吊顶资讯等吊顶行业信息,打造专业的中国集成吊顶网!
Effective URL 22 Characters
https://www.chinadd.cn
Excerpt Page content
集成吊顶_中国集成吊顶行业门户领跑者-中华顶墙网 欢迎您访问 中华顶墙网 旗下网站: 中华顶墙网 ...
Keywords Cloud Density
欧雅壁纸8 法狮龙客厅吊顶7 楚楚顶墙7 正合墙布6 奥普集成吊顶6 品格高端全屋顶6 欧普集成吊顶6 顶上整装定制6 格勒顶墙集成6 宝兰定制集成顶6
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
欧雅壁纸 8
法狮龙客厅吊顶 7
楚楚顶墙 7
正合墙布 6
奥普集成吊顶 6
品格高端全屋顶 6
欧普集成吊顶 6
顶上整装定制 6
格勒顶墙集成 6
宝兰定制集成顶 6
Google Preview Your look like this in google search result
集成吊顶_中国集成吊顶行业门户领跑者-中华顶墙网
https://www.chinadd.cn
中华顶墙网-中国优质的集成吊顶门户,包括上千家集成吊顶生产厂家和品牌;汇集全面的集成吊顶招商、集成吊顶加盟代理、吊顶配件、吊顶人才、吊顶资讯等吊顶行业信息,打造专业的中国集成吊顶网!
Robots.txt File Detected
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 / 617 months 17 days

Nameservers
f1g1ns1.dnspod.net
f1g1ns2.dnspod.net
Page Size Code & Text Ratio
Document Size: ~305.71 KB
Code Size: ~218.25 KB
Text Size: ~87.45 KB Ratio: 28.61%

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
Does not use HTTPS 8 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
Reduce server response times (TTFB) Root document took 1,990 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 30 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Enable text compression Potential savings of 44 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 214 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 0 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 170 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 1.0 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 307 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 40 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 7.0 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 2.2 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 1,479 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 5.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 0.6 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 67 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 4,448 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 13 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 0.6 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 136 requests • 1,479 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 2 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 190 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 2.8 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 12.8 s
A fast page load over a cellular network ensures a good mobile user experience
Estimated Input Latency 30 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
Remove unused CSS Potential savings of 17 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 486 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

Mobile

Mobile Screenshot
Tap targets are not sized appropriately 88% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements
Document uses legible font sizes 93.31% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px
Remove unused CSS Potential savings of 17 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 318 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
Reduce server response times (TTFB) Root document took 2,650 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 510 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Enable text compression Potential savings of 44 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 127 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 0 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 170 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
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 633 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Speed Index 13.8 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 7.1 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 1,227 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 4.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 3.5 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
Avoid chaining critical requests 69 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 1,332 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 18 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 3.5 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 141 requests • 1,227 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 3 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 260 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 9.5 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
Estimated Input Latency 10 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
First Contentful Paint (3G) 7078 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network

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
Server: nginx
Date: Thu, 28 Nov 2019 06:17:41 GMT
Content-Type: text/html
Connection: keep-alive
Keep-Alive: timeout=60
X-Hostname: HK-apache04
X-Cache: HIT from www.chinadd.cn
Content-Encoding: gzip
DNS Records DNS Resource Records associated with a hostname
View DNS Records

Comments

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