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Top Technologies

PHP

Programming Languages

Google Font API

Font Scripts

WordPress

CMS

CloudFlare

CDN

jQuery

JavaScript Frameworks

Nginx

Web Servers

Font Awesome

Font Scripts

Google Tag Manager

Tag Managers

Apache

Web Servers

LiteSpeed

Web Servers

66 csdn.net Last Updated: 3 years

Success 55% of passed verification steps

Warning 15% of total warning

Errors 30% of total errors, require fast action

Mobile

Performance Mobile Score 70%

Best Practices Mobile Score 64%

SEO Mobile Score 83%

Progressive Web App Mobile Score 54%

Page Authority Authority 63%

Domain Authority Domain Authority 73%

Moz Rank 6.3/10

Bounce Rate Rate 0%

charset Encoding

Great, language/character encoding is specified: UTF-8

Title Tag 14 Characters

CSDN - 专业开发者社区

Meta Description 85 Characters

CSDN是全球知名中文IT技术交流平台,创建于1999年,包含原创博客、精品问答、职业培训、技术论坛、资源下载等产品服务,提供原创、优质、完整内容的专业IT技术开发社区.

Effective URL 20 Characters

https://www.csdn.net

Excerpt Page content

CSDN - 专业开发者社区 ...

Keywords Cloud Density

qualcomm2 开发者专区2 刚刚阅读在这里2 点击刷新2 linus1 华为开放能力及平台服务1 掌握最新热门技术课程1 华为开发者学院1 视频超分辨率大赛等你来战1 总奖金近9万1

Keyword Consistency Keyword density is one of the main terms in SEO

Keyword	Freq	Title	Desc	Domain	H1	H2
qualcomm	2
开发者专区	2
刚刚阅读在这里	2
点击刷新	2
linus	1
华为开放能力及平台服务	1
掌握最新热门技术课程	1
华为开发者学院	1
视频超分辨率大赛等你来战	1
总奖金近9万	1

Google Preview Your look like this in google search result

CSDN - 专业开发者社区

https://www.csdn.net

Robots.txt File Detected

http://csdn.net/robots.txt

Sitemap.xml File Detected

http://csdn.net/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: 2020-05-13 / 3 years

Create on: 1999-03-11 / 24 years

Expires on: 2022-03-11 / 14 months 26 days

Alibaba Cloud Computing (Beijing) Co., Ltd. ,

Registrar Whois Server: grs-whois.hichina.com

Registrar URL: http://www.net.cn

Nameservers

VIP3.ALIDNS.COM

VIP4.ALIDNS.COM

Page Size Code & Text Ratio

Document Size: ~61.44 KB

Code Size: ~41.76 KB

Text Size: ~19.68 KB Ratio: 32.03%

Social Data

Estimation Traffic and Earnings

973,174

Unique Visits

Daily

1,800,371

Pages Views

Daily

$3,474

Income

Daily

27,248,872

Unique Visits

Monthly

51,310,574

Pages Views

Monthly

$86,850

Income

Monthly

315,308,376

Unique Visits

Yearly

604,924,656

Pages Views

Yearly

$917,136

Income

Yearly

Technologies

PWA - Manifest

Manifest is not valid

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

Desktop

Mobile

Total Blocking Time 390 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds

Largest Contentful Paint 3.6 s

Largest Contentful Paint marks the time at which the largest text or image is painted

Reduce initial server response time Root document took 960 ms

Keep the server response time for the main document short because all other requests depend on it

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

Efficiently encode images Potential savings of 72 KiB

Optimized images load faster and consume less cellular data

Minimize main-thread work 3.6 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

Document uses legible font sizes 81.02% 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

Avoid long main-thread tasks 10 long tasks found

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay

Tap targets are not sized appropriately 86% 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

Max Potential First Input Delay 300 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task

Eliminate render-blocking resources Potential savings of 150 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Serve images in next-gen formats Potential savings of 714 KiB

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

First Meaningful Paint 2.6 s

First Meaningful Paint measures when the primary content of a page is visible

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

Serve static assets with an efficient cache policy 14 resources found

A long cache lifetime can speed up repeat visits to your page

First Contentful Paint (3G) 5252 ms

First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network

Enable text compression Potential savings of 80 KiB

Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes

Avoids large JavaScript libraries with smaller alternatives 0 large libraries found

Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size

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

Avoids enormous network payloads Total size was 1,310 KiB

Large network payloads cost users real money and are highly correlated with long load times

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

Keep request counts low and transfer sizes small 36 requests • 1,310 KiB

To set budgets for the quantity and size of page resources, add a budget.json file

First CPU Idle 4.2 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/).

Minimize third-party usage Third-party code blocked the main thread for 50 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

Includes front-end JavaScript libraries with known security vulnerabilities 4 vulnerabilities detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Properly size images Potential savings of 38 KiB

Serve images that are appropriately-sized to save cellular data and improve load time

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

Time to Interactive 4.8 s

Time to interactive is the amount of time it takes for the page to become fully interactive

First Contentful Paint 2.6 s

First Contentful Paint marks the time at which the first text or image is painted

Largest Contentful Paint element 1 element found

This is the largest contentful element painted within the viewport

Avoids an excessive DOM size 639 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)

Speed Index 6.8 s

Speed Index shows how quickly the contents of a page are visibly populated

Defer offscreen images Potential savings of 5 KiB

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive

Speed And Optimization Tips

Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking you

Title Website

Congratulations! Your title is optimized

Description Website

Congratulations! Your description is optimized

Robots.txt

Congratulations! Your site have a robots.txt file

Sitemap.xml

Congratulations! We've found a sitemap file for your website

SSL Secure

Congratulations! Your site have Support to HTTPS

Headings

Warning! Your page not contain any H1 and H2 headings. H1 and H2 headings help indicate the important topics of your page to search engines

Blacklist

Congratulations! Your site is not listed in a blacklist

W3C Validator

Warning! Your site have errors W3C

Accelerated Mobile Pages (AMP)

Warning! Your site not have AMP Version

Domain Authority

Congratulations! Your Domain Authority is good

GZIP Compress

Warning! Your site not is compressed, this can make slower response for the visitors

Favicon

Warning! Your site not have a favicon

Broken Links

Warning! You have broken links View links

First 20 Links	Relationship	HTTP Status
https://blog.csdn.net/csdnnews/article/details/108583753?spm=1000.2115.3001.4368	Internal Link	200
https://blog.csdn.net/caoz/article/details/108505275?spm=1000.2115.3001.4373	Internal Link	200
https://blog.csdn.net/csdnsevenn/article/details/108313371	Internal Link	200
https://blog.csdn.net/dQCFKyQDXYm3F8rB0/article/details/108313356	Internal Link	200
https://blog.csdn.net/Blockchain_lemon/article/details/108313467	Internal Link	200
https://bss.csdn.net/m/topic/hw_harmonyOS	Internal Link	0
https://blog.csdn.net/csdnnews/article/details/108313739	Internal Link	200
https://marketing.csdn.net/p/ba757bf3d939b385ffcf95de4203e880	Internal Link	200
https://blog.csdn.net/csdnnews/article/details/108313740	Internal Link	200
https://blog.csdn.net/csdnnews/article/details/108313742	Internal Link	200
https://bss.csdn.net/m/zone/bsv/index	Internal Link	0
https://bss.csdn.net/m/topic/unity3d?project_id=4560&utm_source=1230652881	Internal Link	200
https://marketing.csdn.net/p/70a6290bd1aa60178545e6ed13bb0825	Internal Link	200
http://qualcomm.csdn.net/	Internal Link	0
http://intel.csdn.net/	Internal Link	301
https://bss.csdn.net/m/zone/huawei2018	Internal Link	200
https://megvii.blog.csdn.net/article/details/107925606	Internal Link	200
https://bss.csdn.net/m/topic/huawei_college?project_id=4574&utm_source=1230652881	Internal Link	200
华为被曝自研编程语言“仓颉”，有必要吗？	Internal Link	200
如果华为手机明年搭载鸿蒙系统，你会买吗？	Internal Link	200

Alexa Rank

30

Global Rank

12

China

Traffic

Search

Domain Available

Domain (TDL) and Typo	Status
csdn.co	Available Buy Now!
csdn.us	Available Buy Now!
csdn.com	Available Buy Now!
csdn.org	Available Buy Now!
csdn.net	Available Buy Now!
cdn.net	Available Buy Now!
dsdn.net	Available Buy Now!
rsdn.net	Available Buy Now!

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server

HTTP/2 200 
server: openresty
date: Tue, 15 Sep 2020 07:22:10 GMT
content-type: text/html; charset=UTF-8
set-cookie: uuid_tt_dd=10_26808905460-1600154530420-682657; Expires=Thu, 01 Jan 2025 00:00:00 GMT; Path=/; Domain=.csdn.net;
set-cookie: dc_session_id=10_1600154530420.720895; Expires=Thu, 01 Jan 2025 00:00:00 GMT; Path=/; Domain=.csdn.net;
vary: Accept-Encoding
content-encoding: gzip
strict-transport-security: max-age=31536000

DNS Records DNS Resource Records associated with a hostname

View DNS Records

Type	Name	Value	Class	TTL
A	csdn.net	47.95.164.112	IN	74
NS	csdn.net	vip4.alidns.com	IN	86400
NS	csdn.net	vip3.alidns.com	IN	86400
MX	csdn.net	mxbiz2.qq.com	IN	600
MX	csdn.net	mxbiz1.qq.com	IN	600
TXT	csdn.net	google-site-verification=nn4nvxbYITKfb8-tv-QWw4H7PsjTM6LGvHDeUvrw0hA	IN	60
TXT	csdn.net	aliyun-site-verification=019d4b53-d811-47df-8312-695fcef366f4	IN	60
TXT	csdn.net	v=spf1 include:spf.mail.qq.com ~all	IN	60

Your Website Score is

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Latest Sites

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66 csdn.net Last Updated: 3 years

Desktop

Mobile

Social Data

Estimation Traffic and Earnings

Technologies

Lua

Nginx

OpenResty

Twitter Bootstrap

PWA - Manifest

Desktop

Mobile

Speed And Optimization Tips

Alexa Rank

30

12

Domain Available

Information Server

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