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12 wjdiy.cn Last Updated: 1 year

Success 54% of passed verification steps

Warning 23% of total warning

Errors 23% of total errors, require fast action

Mobile

Performance Desktop Score 89%

Best Practices Desktop Score 54%

SEO Desktop Score 90%

Progressive Web App Desktop Score 31%

Performance Mobile Score 90%

Best Practices Mobile Score 54%

SEO Mobile Score 99%

Progressive Web App Mobile Score 41%

Page Authority Authority 42%

Domain Authority Domain Authority 1%

Moz Rank 4.2/10

Bounce Rate Rate 0%

Charset Encoding

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

Title Tag 33 Characters

弱电工程公司=监控安装+综合布线+门禁系统+设备租赁+深圳电脑维修

Meta Description 115 Characters

综合布线公司,综合布线工程,综合布线系统,监控安装公司,深圳监控工程,安装监控系统,弱电工程公司,深圳弱电工程,安装门禁系统,办公设备租赁,网络维护公司,网络综合布线,深圳电脑维修,深圳出租打印机,深圳复印机出租,网络监控维保公司

Effective URL 19 Characters

http://www.wjdiy.cn

Excerpt Page content

弱电工程公司=监控安装+综合布线+门禁系统+设备租赁+深圳电脑维修网际电子弱电工程：综合布线; 安防监控; 租打印机门禁系统：外包服务;装摄像头;复印机租赁弱电公司：弱电技术服务区;深圳区;全国区联系电话：13713730648；075533942288 公司地址：深圳龙华民治樟坑一区109栋1楼首页综合布线网络布线布线施工成功案例安防监控监控系统监控工程网络维护弱电工程知识宝库桥架安装门禁系统设备租赁...

Meta Keywords 13 Detected

综合布线公司综合布线工程综合布线系统监控安装公司深圳监控工程安装监控系统弱电工程公司深圳弱电工程安装门禁系统办公设备租赁网络维护公司网络综合布线深圳电脑维修

Keywords Cloud Density

更多>>22 综合布线11 租打印机10 租复印机10 安防监控9 设备租赁8 弱电工程8 监控工程7 网络布线7 布线施工7

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

Keyword	Freq	Title	Desc	Domain	H1	H2
更多>>	22
综合布线	11
租打印机	10
租复印机	10
安防监控	9
设备租赁	8
弱电工程	8
监控工程	7
网络布线	7
布线施工	7

Google Preview Your look like this in google search result

弱电工程公司=监控安装+综合布线+门禁系统+设备租赁+深圳电脑维修

http://www.wjdiy.cn

Robots.txt File Detected

http://wjdiy.cn/robots.txt

Sitemap.xml File Detected

http://wjdiy.cn/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 / 621 months 17 days

Nameservers

vip1.alidns.com

vip2.alidns.com

Page Size Code & Text Ratio

Document Size: ~109.25 KB

Code Size: ~82.56 KB

Text Size: ~26.7 KB Ratio: 24.44%

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

Does not use HTTPS 38 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 1,040 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

Efficiently encode images Potential savings of 856 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 0 ms

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

JavaScript execution time 0.2 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 417 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 1,059 KB

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

Speed Index 2.1 s

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

First CPU Idle 0.6 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 2,560 KB

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

Minimizes main-thread work 1.0 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

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 6 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 1,430 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 38 requests • 2,560 KB

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

Use video formats for animated content Potential savings of 189 KB

Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes

Serve static assets with an efficient cache policy 33 resources found

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

Max Potential First Input Delay 60 ms

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

Time to Interactive 1.6 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

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

Remove unused CSS Potential savings of 13 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 1,248 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

Serve static assets with an efficient cache policy 49 resources found

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

Max Potential First Input Delay 20 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

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) 4275 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 10 ms

Tap targets are not sized appropriately 97% 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 3,190 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 50 insecure requests found

Server response times are low (TTFB) Root document took 320 ms

Time To First Byte identifies the time at which your server sends a response

Eliminate render-blocking resources Potential savings of 180 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 2,447 KB

Optimized images load faster and consume less cellular data

Minimize third-party usage Third-party code blocked the main thread for 20 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 0 ms

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

JavaScript execution time 0.1 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

Properly size images Potential savings of 3,274 KB

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

Speed Index 4.8 s

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

First CPU Idle 2.0 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 4,815 KB

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

Minimizes main-thread work 1.1 s

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

First Contentful Paint 2.0 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 5 chains found

Avoids an excessive DOM size 592 elements

First Meaningful Paint 2.0 s

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

Keep request counts low and transfer sizes small 50 requests • 4,815 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
Server: nginx
Date: Wed, 01 Jan 2020 04:17:05 GMT
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Set-Cookie: yunsuo_session_verify=d0537827d8e4c2213167bb53146aebc7; expires=Sat, 04-Jan-20 12:17:05 GMT; path=/; HttpOnly
Content-Encoding: gzip
Vary: Accept-Encoding

DNS Records DNS Resource Records associated with a hostname

View DNS Records

Type	Name	Value	Class	TTL
A	wjdiy.cn	122.114.237.45	IN	599
NS	wjdiy.cn	vip2.alidns.com	IN	86331
NS	wjdiy.cn	vip1.alidns.com	IN	86331
MX	wjdiy.cn	mxdomain.qq.com	IN	600
TXT	wjdiy.cn	v=spf1 ip4:222.215.230.49/32 ip4:222.208.183.233/32 ip4:116.255.134.183/32 ~all	IN	600

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12 wjdiy.cn Last Updated: 1 year

Desktop

Mobile

Estimation Traffic and Earnings

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Technologies

Font Awesome

jQuery

Nginx

PWA - Manifest

Desktop

Mobile

Speed And Optimization Tips

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Alexa Rank

0

Information Server

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