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Top Technologies

Apache
Web Servers
Google Font API
Font Scripts
Font Awesome
Font Scripts
Nginx
Web Servers
WordPress
CMS
Windows Server
Operating Systems
Microsoft ASP NET
Web Frameworks

12 waf.com.vn Last Updated: 2 weeks

Success 47% of passed verification steps
Warning 23% of total warning
Errors 30% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 62%
Best Practices Desktop Score 77%
SEO Desktop Score 100%
Progressive Web App Desktop Score 38%
Performance Mobile Score 26%
Best Practices Mobile Score 69%
SEO Mobile Score 97%
Progressive Web App Mobile Score 41%
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 49 Characters
TƯỜNG LỬA ỨNG DỤNG WEB - WEB APPLICATION FIREWALL
Meta Description 86 Characters
Trang web giới thiệu về web application firewall hay còn gọi là tường lửa ứng dụng web
Effective URL 17 Characters
http://waf.com.vn
Excerpt Page content
Tường lửa ứng dụng web - Web application firewall TRANG CHỦ GIỚI THIỆU TÍNH NĂNG LIÊN HỆ ...
Keywords Cloud Density
dụng25 công15 người11 việc10 trong9 những9 application9 http8 pháp8 không8
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
dụng 25
công 15
người 11
việc 10
trong 9
những 9
application 9
http 8
pháp 8
không 8
Google Preview Your look like this in google search result
TƯỜNG LỬA ỨNG DỤNG WEB - WEB APPLICATION FIREWALL
http://waf.com.vn
Trang web giới thiệu về web application firewall hay còn gọi là tường lửa ứng dụng web
Robots.txt File No Found
Sitemap.xml File No Found
Page Size Code & Text Ratio
Document Size: ~93.36 KB
Code Size: ~39.65 KB
Text Size: ~53.71 KB Ratio: 57.53%

Social Data

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Estimation Traffic and Earnings

8
Unique Visits
Daily
14
Pages Views
Daily
$0
Income
Daily
224
Unique Visits
Monthly
399
Pages Views
Monthly
$0
Income
Monthly
2,592
Unique Visits
Yearly
4,704
Pages Views
Yearly
$0
Income
Yearly

Technologies

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PWA - Manifest

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

Desktop

Desktop Screenshot
Remove unused CSS Potential savings of 86 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 555 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 72 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 1,370 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 1,430 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 117 KB
Optimized images load faster and consume less cellular data
Total Blocking Time 30 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.5 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 21 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 3.2 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).
Avoids enormous network payloads Total size was 1,530 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 1.6 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 1.6 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 49 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 308 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 6 KB
Minifying JavaScript files can reduce payload sizes and script parse time
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 72 requests • 1,530 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 54 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 2.4 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
Minify CSS Potential savings of 11 KB
Minifying CSS files can reduce network payload sizes

Mobile

Mobile Screenshot
Total Blocking Time 730 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 2.6 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 43 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 4 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 10.8 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 7.1 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 1,509 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 6.6 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 5.4 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 3 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 50 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 306 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 6 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 7.1 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 87 requests • 1,509 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 55 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 500 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 8.4 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) 10020.5 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 110 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
Minify CSS Potential savings of 11 KB
Minifying CSS files can reduce network payload sizes
Tap targets are not sized appropriately 67% 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 96 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 555 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 85 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 1,620 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 4,550 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 117 KB
Optimized images load faster and consume less cellular data

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
Warning! Your site not have a robots.txt file
Sitemap.xml
Warning! Not found a sitemap file for your website
SSL Secure
Warning! Your website is not SSL secured (HTTPS).
Headings
Congratulations! You are using your H1 and H2 tags in your site
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
Warning! Domain Authority of your website is slow. It is good to have domain authority more than 25.
GZIP Compress
Warning! Your site not is compressed, this can make slower response for the visitors
Favicon
Congratulations! Your website appears to have a favicon.
Broken Links
Congratulations! You not have broken links View links

Alexa Rank

99,999,999

Global Rank

99,999,999

-
Traffic
Search

Domain Available

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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: Thu, 06 Feb 2020 10:13:15 GMT
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Vary: Accept-Encoding
X-Pingback: http://waf.com.vn/xmlrpc.php
Link: ; rel="https://api.w.org/", ; rel=shortlink
Vary: User-Agent
Content-Encoding: gzip
DNS Records DNS Resource Records associated with a hostname
View DNS Records