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62 cna.com.tw Last Updated: 1 year

Success 70% of passed verification steps
Warning 7% of total warning
Errors 23% of total errors, require fast action
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Desktop

Mobile

Performance Desktop Score 83%
Best Practices Desktop Score 85%
SEO Desktop Score 100%
Progressive Web App Desktop Score 27%
Performance Mobile Score 78%
Best Practices Mobile Score 92%
SEO Mobile Score 98%
Progressive Web App Mobile Score 56%
Page Authority Authority 50%
Domain Authority Domain Authority 85%
Moz Rank 5.0/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 12 Characters
中央社 CNA
Meta Description 59 Characters
24小時報導國際、財經、科技、醫藥、生活、運動、教育、政治、影劇、社會、地方即時新聞的網站，並提供社群討論、分享功能。
Effective URL 22 Characters
https://www.cna.com.tw
Excerpt Page content
中央社 CNA 更多編輯台推薦新聞： 生活京華城30日正式走入歷史 伴台北人走過18年 娛樂高以翔驟逝非首例 中國競技型娛樂節目意外頻傳運動影片／雷納德喬治雙槍合璧 快艇撞翻獨行俠奪6連勝產經專題／當AI碰上工廠老鳥 傳統產業翻轉刻板印象專題香港反送中局勢一次看本網站使用相關技術提供更好的閱讀體驗，同時尊重使用者隱私，點這裡瞭解中央社隱私聲明。當您關閉此視窗，代表您同意上述規範。Your browser does not appear to support Traditional Ch...
Meta Keywords 4 Detected
News 新聞 即時新聞 中央社
Keywords Cloud Density
taiwan6 訊息平台5 新聞學院4 フォーカス台湾3 中火燃煤風波3 中國外館數量首度超越美國3 挖走台灣邦交國3 再創全球最低紀錄3 未來由你決定3 微信美國用戶遭刪文封號3
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
taiwan 6
訊息平台 5
新聞學院 4
フォーカス台湾 3
中火燃煤風波 3
中國外館數量首度超越美國 3
挖走台灣邦交國 3
再創全球最低紀錄 3
未來由你決定 3
微信美國用戶遭刪文封號 3
Google Preview Your look like this in google search result
中央社 CNA
https://www.cna.com.tw
24小時報導國際、財經、科技、醫藥、生活、運動、教育、政治、影劇、社會、地方即時新聞的網站，並提供社群討論、分享功能。
Robots.txt File Detected
http://cna.com.tw/robots.txt
Sitemap.xml File No Found
http://cna.com.tw/sitemap.xml
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 / 624 months 16 days
Page Size Code & Text Ratio
Document Size: ~185.81 KB
Code Size: ~95.18 KB
Text Size: ~90.63 KB Ratio: 48.78%

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
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 11.1 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 11 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 683 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 1,280 ms
Time To First Byte identifies the time at which your server sends a response
Efficiently encode images Potential savings of 182 KB
Optimized images load faster and consume less cellular data
Minimize third-party usage Third-party code blocked the main thread for 110 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 100 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 1.3 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
Properly size images Potential savings of 848 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 2.5 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 1.7 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 2,045 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 0.5 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 1 chain 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 1,455 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 105 requests • 2,045 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 11 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 140 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 2.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive

Mobile

Mobile Screenshot
Max Potential First Input Delay 330 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 6.0 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 170 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) 2736 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 not sized appropriately 83% 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
Serve images in next-gen formats Potential savings of 86 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 1,270 ms
Time To First Byte identifies the time at which your server sends a response
Efficiently encode images Potential savings of 14 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 280 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 760 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 1.2 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 108 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
Speed Index 4.1 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 5.4 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 524 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 4.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 1.7 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 1 chain 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 1,450 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 1.7 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 29 requests • 524 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 5 resources found
A long cache lifetime can speed up repeat visits to your page

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
Cache-Control: private
Content-Length: 50834
Content-Type: text/html; charset=utf-8
Content-Encoding: gzip
Vary: Accept-Encoding
Server: Microsoft-IIS/10.0
Set-Cookie: ASP.NET_SessionId=233e1obyhkjy24muxm155x4a; path=/; HttpOnly
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Wed, 27 Nov 2019 10:07:46 GMT
DNS Records DNS Resource Records associated with a hostname
View DNS Records
Type Name Value Class TTL
A cna.com.tw 210.69.89.185 IN 1736
NS cna.com.tw ns2.cna.com.tw IN 1799
NS cna.com.tw dns.cnanews.gov.tw IN 1799
NS cna.com.tw ns3.cna.com.tw IN 1799
MX cna.com.tw mail.cna.com.tw IN 1799

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