Character Encoding :utf-8

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   This website is using utf-8 character encoding in HTML , character encoding is used to represent a repertoire of characters by some kind of encoding system.

Gzip Content-Encoding

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   The Content-Encoding entity header is used to compress the media-type. When present, its value indicates which encodings were applied to the entity-body. It lets the client know how to decode in order to obtain the media-type referenced by the Content-Type header.

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"

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 : Đại lý phân phối máy photocopy Canon, máy photocopy Toshiba, máy photocopy Ricoh, máy photocopy Xerox giá tốt nhất TPHCM. Giao hàng, lắp đặt tận nơi miễn phí TpHCM. Gọi 0919.911.955 - (028) 6266 4567

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.

NO Store HTTP Cache-Control

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   The cache should not store anything about the client request or server response.

No Cache Content

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

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.

Vary Header check for User-Agent

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   When using the Vary: User-Agent header, caching servers should consider the user agent when deciding whether to serve the page from cache

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: máy photocopy giá rẻ nhất tại tphcm, máy photocopy canon giá rẻ nhất tại tphcm, máy photocopy toshiba giá rẻ nhất tại tphcm, máy photocopy ricoh giá rẻ nhất tại tphcm, máy photocopy xerox giá rẻ nhất tại tphcm, máy photocopy giá tốt nhất tại tphcm, máy photocopy canon giá tốt nhất tại tphcm, máy photocopy toshiba giá tốt nhất tại tphcm, máy photocopy ricoh giá tốt nhất tại tphcm, máy photocopy xerox giá tốt nhất tại tphcm

Google Analytics

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   Google Analytics is a web analytics service offered by Google that tracks and reports website traffic, currently as a platform inside the Google Marketing Platform brand.

Facebook SDK

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

PHP

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

PHP 7.1.7

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

PHP 7.1.33

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

Disable Telephone link in HTML on Mobile Devices

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   Telephone links are a thing. Like an anchor link you tap to (probably) go to another page, these are links you tap to call a number on a phone-capable device.

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.

Nginx

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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.

Twitter Cards

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   With Twitter Cards, you can attach rich photos, videos and media experiences to Tweets, helping to drive traffic to your website.

AddThis

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   AddThis free website tools include share buttons, targeting tools and content recommendations help you get more likes, shares and followers