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Web Frameworks

52 zol.com.cn Last Updated: 11 months

Success 62% of passed verification steps
Warning 23% of total warning
Errors 15% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 71%
Best Practices Desktop Score 38%
SEO Desktop Score 64%
Progressive Web App Desktop Score 8%
Performance Mobile Score 35%
Best Practices Mobile Score 77%
SEO Mobile Score 85%
Progressive Web App Mobile Score 19%
Page Authority Authority 61%
Domain Authority Domain Authority 80%
Moz Rank 6.1/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: GBK
Title Tag 87 Characters
中关村在线 - 大中华区专业IT网站 - THE VALUABLE AND PROFESSIONAL IT BUSINESS WEBSITE IN GREATER CHINA
Meta Description 103 Characters
中国领先的IT信息与商务门户, 包括新闻, 商城, 硬件, 下载, 游戏, 手机, 评测等40个大型频道,每天发布大量各类产品促销信息及文章专题,是IT行业的厂商, 经销商, IT产品, 解决方案的提供场所
Effective URL 21 Characters
http://www.zol.com.cn
Excerpt Page content
中关村在线 - 大中华区专业IT网站 - The valuable and professional IT business website in Greater China 手机客户端 数码爱好者必备神器 ...
Keywords Cloud Density
概念产品17 去购买>14 oppo13 vivo11 ¥4998 华为nova7 mark6 三星galaxy6 thinkpad6 ¥29995
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
概念产品 17
去购买> 14
oppo 13
vivo 11
¥499 8
华为nova 7
mark 6
三星galaxy 6
thinkpad 6
¥2999 5
Google Preview Your look like this in google search result
中关村在线 - 大中华区专业IT网站 - THE VALUABLE AND PROFESSIONAL IT BUSINE
http://www.zol.com.cn
中国领先的IT信息与商务门户, 包括新闻, 商城, 硬件, 下载, 游戏, 手机, 评测等40个大型频道,每天发布大量各类产品促销信息及文章专题,是IT行业的厂商, 经销商, IT产品, 解决方案的提供场所
Robots.txt File Detected
Sitemap.xml File Detected
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 20 days

Nameservers
ns.zol.com
ns1.zol.com
Page Size Code & Text Ratio
Document Size: ~418.17 KB
Code Size: ~261.51 KB
Text Size: ~156.67 KB Ratio: 37.46%

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
Total Blocking Time 20 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.8 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 258 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 30 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 9.4 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 1.6 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 1,471 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 3.4 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
robots.txt is not valid 1 error found
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed
First Contentful Paint 0.5 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 2 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 10 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 3,829 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)
First Meaningful Paint 0.5 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 176 requests • 1,471 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 68 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 80 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 2.2 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 14.4 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
Uses deprecated APIs 1 warning found
Deprecated APIs will eventually be removed from the browser
Serve images in next-gen formats Potential savings of 301 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 61 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 1,260 ms
Time To First Byte identifies the time at which your server sends a response
Enable text compression Potential savings of 9 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 130 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

Mobile

Mobile Screenshot
Serve static assets with an efficient cache policy 73 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 230 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 11.6 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 at 11.6 s
A fast page load over a cellular network ensures a good mobile user experience
Estimated Input Latency 40 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) 5070 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Tap targets are sized appropriately 100% 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 100% 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 10 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 360 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 2 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 310 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 360 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 44 KB
Optimized images load faster and consume less cellular data
Enable text compression Potential savings of 96 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
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 440 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 1.7 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 199 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 178 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 11.7 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 8.5 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 1,516 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 6.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
robots.txt is not valid 1 error found
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed
First Contentful Paint 2.4 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 11 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
Avoids an excessive DOM size 669 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)
Preload key requests Potential savings of 1,080 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
First Meaningful Paint 2.4 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 123 requests • 1,516 KB
To set budgets for the quantity and size of page resources, add a budget.json file

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
Date: Wed, 25 Dec 2019 23:04:26 GMT
Content-Type: text/html; charset=gbk
Connection: keep-alive
Expires: Wed, 25 Dec 2019 23:05:44 GMT
Server: openresty
Accept-Ranges: bytes
Cache-Control: max-age=120
Vary: Accept-Encoding
Content-Encoding: gzip
X-Ser: BC71_dx-lt-yd-zhejiang-huzhou-3-cache-3, BC17_dx-zhejiang-taizhou-2-cache-1
DNS Records DNS Resource Records associated with a hostname
View DNS Records

Comments

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