URL Scan Results for the page [Vocabulary Book](https://hoctuvungnhanh.com/en)

Document

Links

The outgoing links identified from the page.

JavaScript Variables

Global JavaScript variables are variables that are defined outside of any function or block scope in JavaScript.

Technology

The technologies identified are present on the scanned URL.

Name	Description	Detected patterns
Analytics
Facebook Pixel https://facebook.com	Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.	Type: scriptSrc Regex: connect\.facebook\.\w{1,250}\/.{1,250}\/fbevents\.js
JavaScript frameworks
React https://reactjs.org	React is an open-source JavaScript library for building user interfaces or UI components.	Dependent on Next.js
Next.js https://nextjs.org	Next.js is a React framework for developing single page Javascript applications.	Type: headers Name: x-powered-by Regex: ^Next\.js ?([0-9.]{1,250})?
Web frameworks
Next.js https://nextjs.org	Next.js is a React framework for developing single page Javascript applications.	Type: headers Name: x-powered-by Regex: ^Next\.js ?([0-9.]{1,250})?
Miscellaneous
Webpack https://webpack.js.org/	Webpack is an open-source JavaScript module bundler.	Dependent on Next.js
Web servers
Nginx https://nginx.org/en	Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.	Type: headers Name: server Regex: nginx(?:\/([\d.]{1,250}))?
Next.js https://nextjs.org	Next.js is a React framework for developing single page Javascript applications.	Type: headers Name: x-powered-by Regex: ^Next\.js ?([0-9.]{1,250})?
Programming languages
Node.js https://nodejs.org	Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.	Dependent on Next.js
Operating systems
Ubuntu https://www.ubuntu.com/server	Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.	Type: headers Name: x-powered-by Regex: Ubuntu
Static site generator
Next.js https://nextjs.org	Next.js is a React framework for developing single page Javascript applications.	Type: headers Name: x-powered-by Regex: ^Next\.js ?([0-9.]{1,250})?
Reverse proxies
Nginx https://nginx.org/en	Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.	Type: headers Name: server Regex: nginx(?:\/([\d.]{1,250}))?

Performance

The speed and efficiency of the scanned URL loads and displays its content.

dns

1 ms

Good

tcp

1 ms

Good

requestTime

967 ms

Poor

dom

736 ms

Poor

DNS Record

A DNS record maps a domain name to an IP address or other resource information.

SSL Certificate

An SSL certificate is a digital certificate that verifies the authenticity and encrypts the communication between a website and its visitors.

HTTP Headers

HTTP Header

An HTTP header is a component of an HTTP request or response that contains additional information about the message being sent or received.

Content Security Policy

Content Security Policy (CSP) is a security mechanism that helps prevent cross-site scripting (XSS) and other code injection attacks by specifying which content sources are allowed to be loaded on a web page.

Cookies

Cookies are small pieces of data stored on a user's web browser to track and remember information about their browsing activity on a website.