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.

HTTP Upgrade Header - HTTP/2

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   The HTTP Upgrade mechanism is used to establish HTTP/2 starting from plain HTTP. The client starts an HTTP/1.1 connection and sends an Upgrade: h2c header. If the server supports HTTP/2, it replies with HTTP 101 Switching Protocol status code. The HTTP Upgrade mechanism is used only for cleartext HTTP2 (h2c). In the case of HTTP2 over TLS (h2), the ALPN TLS protocol extension is used instead.

Keep-Alive for 60 secs

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   The Keep-Alive general header allows the sender to hint about how the connection may be used to set a timeout and a maximum amount of requests.

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: China-Service, ремонт китайких телефонов, ремонт китайских смартфонов, ремонт телефонов, ремонт телефонов Киев, ремонт китайских телефонов в Киеве, ремонт китайских телефонов в Украине, ремонт zopo, ремонт meizu, ремонт xiaomi, ремонт thl, ремонт Samsung, ремонт Apple, ремонт Nokia, ремонт LG, ремонт HTC

Post Cache-Control Header

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   this website is using post-heck Cache-Control Header.

Precheck Cache-Control Header

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   this website is using precheck Cache-Control Header.

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.

Vary Header Accept-Encoding

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   The Accept-Encoding request HTTP header advertises which content encoding, usually a compression algorithm, the client is able to understand. Using content negotiation, the server selects one of the proposals, uses it and informs the client of its choice with the Content-Encoding response header.

PHP

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

Character Encoding :windows-1251

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   This website is using windows-1251 character encoding in HTML , character encoding is used to represent a repertoire of characters by some kind of encoding system.

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.

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.

Server partial requests support

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   The Accept-Ranges response HTTP header is a marker used by the server to advertise its support of partial requests. The value of this field indicates the unit that can be used to define a range.

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 - 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.

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.