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Top Technologies

Nginx
Web Servers
Google Tag Manager
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Google Font API
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WordPress
CMS
Twitter Bootstrap
Web Frameworks

46 tool.lu Last Updated: 9 months

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

Desktop

Mobile

Performance Desktop Score 81%
Best Practices Desktop Score 85%
SEO Desktop Score 100%
Progressive Web App Desktop Score 58%
Performance Mobile Score 70%
Best Practices Mobile Score 92%
SEO Mobile Score 97%
Progressive Web App Mobile Score 59%
Page Authority Authority 0%
Domain Authority Domain Authority 0%
Moz Rank 0.0/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 14 Characters
在线工具 - 程序员的工具箱
Meta Description 91 Characters
在线工具,开发人员工具,代码格式化、压缩、加密、解密,下载链接转换,sql工具,正则测试工具,favicon在线制作,ruby工具,中文简繁体转换,迅雷下载链接转换,程序猿的在线工具
Effective URL 15 Characters
https://tool.lu
Excerpt Page content
在线工具 - 程序员的工具箱 技术 在线工具 ...
Keywords Cloud Density
tool75 加入收藏75 https75 在线工具3 shield3 asciidoc编辑器2 中文简繁体转换2 历史上的今天2 数字转大写2 magicbytes2
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
tool 75
加入收藏 75
https 75
在线工具 3
shield 3
asciidoc编辑器 2
中文简繁体转换 2
历史上的今天 2
数字转大写 2
magicbytes 2
Google Preview Your look like this in google search result
在线工具 - 程序员的工具箱
https://tool.lu
在线工具,开发人员工具,代码格式化、压缩、加密、解密,下载链接转换,sql工具,正则测试工具,favicon在线制作,ruby工具,中文简繁体转换,迅雷下载链接转换,程序猿的在线工具
Robots.txt File Detected
Sitemap.xml File Detected
Page Size Code & Text Ratio
Document Size: ~129.68 KB
Code Size: ~85.84 KB
Text Size: ~43.85 KB Ratio: 33.81%

Estimation Traffic and Earnings

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Desktop

Desktop Screenshot
Reduce server response times (TTFB) Root document took 1,320 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 210 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
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 0.1 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
Speed Index 2.8 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 0.8 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 268 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 0.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 0.7 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 7 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 1,410 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 2 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 0.7 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 26 requests • 268 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Uses efficient cache policy on static assets 2 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 50 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 0.9 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

Mobile

Mobile Screenshot
Reduce server response times (TTFB) Root document took 1,090 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 1,420 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Minimize third-party usage Third-party code blocked the main thread for 100 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.
JavaScript execution time 0.4 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 99 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 5.8 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 4.0 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).
Avoids enormous network payloads Total size was 483 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 2.8 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 3.4 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 9 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 1,410 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 2 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 3.4 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 26 requests • 483 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Uses efficient cache policy on static assets 2 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 220 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 4.6 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
First Contentful Paint (3G) 6878 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 69% 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 12 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

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: Sat, 28 Dec 2019 09:30:11 GMT
Content-Type: text/html;charset=UTF-8
Connection: keep-alive
Vary: Accept-Encoding
X-Ratelimit-Limit: 10
X-Ratelimit-Remaining: 9
Set-Cookie: slim_session=%7B%22slim.flash%22%3A%5B%5D%7D; path=/; expires=Sat, 28-Dec-2019 09:50:11 UTC; HttpOnly
Content-Security-Policy: upgrade-insecure-requests
Content-Security-Policy-Report-Only: default-src *; script-src 'self' 'unsafe-inline' 'unsafe-eval' *.tool.lu *.baidu.com *.bdstatic.com; object-src 'none'; style-src 'self' 'unsafe-inline' 'unsafe-eval' *.tool.lu *.baidu.com; img-src 'self' data: *.tool.lu *.href.lu *.baidu.com; media-src 'none'; child-src 'self' *.tool.lu; font-src *.tool.lu *.alicdn.com; connect-src 'self' *.tool.lu *.baidu.com *.alicdn.com; report-uri //analytics.tool.lu/csp
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload
X-UA-Compatible: IE=Edge
X-Request-Id: e96d84a354769f204f65c4639dc68e03
X-Request-Start: 1577525411.382
X-Backend-Server: cn177088
Content-Encoding: gzip
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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