HSTS - Browser HTTPS Only

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   The HTTP Strict-Transport-Security response header (often abbreviated as HSTS) lets a web site tell browsers that it should only be accessed using HTTPS, instead of using HTTP for 31536000 seconds

Pragma Header - backwards compatibility with HTTP/1.0

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   The Pragma HTTP/1.0 general header is an implementation-specific header that may have various effects along the request-response chain. It is used for backwards compatibility with HTTP/1.0 caches where the Cache-Control HTTP/1.1 header is not yet present.

SEO Robots : Allow to index and follow website links

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   Meta robots tag is a tag that tells search engines what to follow and what not to follow.

No Cache Content

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   Forces caches to submit the request to the origin server for validation before releasing a cached copy.

Must Revalidate HTTP Cache-Control

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   Indicates that once a resource has become stale (e.g. max-age has expired), a cache must not use the response to satisfy subsequent requests for this resource without successful validation on the origin server.

Meta Description

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   A meta description is a 160-character snippet, a meta tag in HTML, that summarizes a page`s content. this website is having meta description of the following : Cursos online de formación,avalados por la universidad rey juan carlos, ofertas de empleo en nuestra agencia de colocación,créditos universitarios.

Meta keywords

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   Meta keywords are types of meta tags in the HTML source code of a webpage. They describe the content of a website shortly and concisely,this website is using the following keywords: cursos online, formacion ,master online,curso de programación,certificado, certificado manipulador de alimentos,curso

SPF

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   The Sender Policy Framework (SPF) is an email-authentication technique which is used to prevent spammers from sending messages on behalf of your domain. With SPF an organisation can publish authorized mail servers.

Youtube

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   YouTube is an American online video sharing and social media platform launched by Steve Chen, Chad Hurley, and Jawed Karim in February 2005. After Google, YouTube is the most visited website worldwide, with over one billion monthly users.

PHP

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   PHP: Hypertext Preprocessor is a general-purpose programming language originally designed for web development.

PHP 5.2.16

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   PHP: Hypertext Preprocessor is a general-purpose programming language originally designed for web development.

Nginx 1.14.1

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   Nginx is a web server which can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache. The software was created by Igor Sysoev and first publicly released in 2004. A company of the same name was founded in 2011 to provide support and Nginx plus paid software.

Google Fonts API

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   Making the web more beautiful, fast, and open through great typography.this website is using Raleway:400,100,200,300,500,600,700,800,900 font family

Viewport - Width

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   The viewport is the user`s visible area of a web page. The viewport varies with the device, and will be smaller on a mobile phone than on a computer screen. Before tablets and mobile phones, web pages were designed only for computer screens, and it was common for web pages to have a static design and a fixed size.

Viewport - Mobile compatible

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   The viewport is the user`s visible area of a web page. The viewport varies with the device, and will be smaller on a mobile phone than on a computer screen. Before tablets and mobile phones, web pages were designed only for computer screens, and it was common for web pages to have a static design and a fixed size.

Viewport - initial-scale

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   The viewport is the user`s visible area of a web page. The viewport varies with the device, and will be smaller on a mobile phone than on a computer screen. Before tablets and mobile phones, web pages were designed only for computer screens, and it was common for web pages to have a static design and a fixed size.

Spanish - Language

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   this website is using English as a language parameter

Chunked transfer encoding

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   Chunked transfer encoding is a streaming data transfer mechanism available in version 1.1 of the Hypertext Transfer Protocol (HTTP). In chunked transfer encoding, the data stream is divided into a series of non-overlapping "chunks"

Facebook SDK

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   The Facebook SDK for JavaScript provides a rich set of client-side functionality