dvms.vn

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Document Encoding

Character Encoding :utf-8

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

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

Chunked transfer encoding

Download List of All Websites using Chunked transfer encoding

   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"




Content Delivery Network

Google Hosted Libraries

Google Hosted Libraries

Download List of All Websites using Google Hosted Libraries

   The Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.




JavaScript Libraries and Functions

jquery  1.12.4

jquery 1.12.4

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   JavaScript library for DOM operations

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Twitter API

Twitter API

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   You can access Twitter via the web or your mobile device. To share information on Twitter as widely as possible




Email Hosting Providers

SPF

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.

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Mobile

Viewport  - Width

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.

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Viewport  - initial-scale

Viewport - initial-scale

Download List of All Websites using Viewport - initial-scale

   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.

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Viewport  - Mobile compatible

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.

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Document Standards

Pragma Header - backwards compatibility with HTTP/1.0

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

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.

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Vary Header check for User-Agent

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


Vary Header Accept-Encoding

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.

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Post Cache-Control Header

Post Cache-Control Header

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


Precheck Cache-Control Header

Precheck Cache-Control Header

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   this website is using precheck Cache-Control Header.


Must Revalidate HTTP Cache-Control

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.

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NO Store HTTP Cache-Control

NO Store HTTP Cache-Control

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

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No Cache Content

No Cache Content

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


Block Content Sniffing

Block Content Sniffing

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   The X-Content-Type-Options response HTTP header is a marker used by the server to indicate that the MIME types advertised in the Content-Type headers should not be changed and be followed. This allows to opt-out of MIME type sniffing, or, in other words, it is a way to say that the webmasters knew what they were doing.




Framworks

PHP 7.3.27

PHP 7.3.27

Download List of All Websites using PHP 7.3.27

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

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Operating Systems and Servers

Apache 2

Apache 2

Download List of All Websites using Apache 2

   The Apache HTTP Server, colloquially called Apache, is free and open-source cross-platform web server software, released under the terms of Apache License 2.0. Apache is developed and maintained by an open community of developers under the auspices of the Apache Software Foundation.




Document Encoding

Character Encoding :utf-8

Character Encoding :utf-8

2021-08-01 / 2023-05-08

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Gzip Content-Encoding

Gzip Content-Encoding

2021-08-01 / 2023-05-08

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Chunked transfer encoding

Chunked transfer encoding

2021-08-01 / 2023-05-08

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Content Delivery Network

Google Hosted Libraries

Google Hosted Libraries

2023-05-08 / 2023-05-08

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JavaScript Libraries and Functions

jquery  1.12.4

jquery 1.12.4

2023-05-08 / 2023-05-08

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Twitter API

Twitter API

2021-08-01 / 2023-05-08

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Email Hosting Providers

SPF

SPF

2023-05-08 / 2023-05-08

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Mobile

Viewport  - Width

Viewport - Width

2021-08-01 / 2023-05-08

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Viewport  - initial-scale

Viewport - initial-scale

2021-08-01 / 2023-05-08

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Viewport  - Mobile compatible

Viewport - Mobile compatible

2021-08-01 / 2023-05-08

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Document Standards

Pragma Header - backwards compatibility with HTTP/1.0

Pragma Header - backwards compatibility with HTTP/1.0

2021-08-01 / 2023-05-08

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Meta keywords

Meta keywords (removed)

2021-08-01 / 2021-08-01

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HTTP Upgrade Header - HTTP/2

HTTP Upgrade Header - HTTP/2

2021-08-01 / 2023-05-08

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Vary Header check for User-Agent

Vary Header check for User-Agent

2021-08-01 / 2023-05-08

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Vary Header Accept-Encoding

Vary Header Accept-Encoding

2021-08-01 / 2023-05-08

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Post Cache-Control Header

Post Cache-Control Header

2021-08-01 / 2023-05-08

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Precheck Cache-Control Header

Precheck Cache-Control Header

2021-08-01 / 2023-05-08

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Must Revalidate HTTP Cache-Control

Must Revalidate HTTP Cache-Control

2021-08-01 / 2023-05-08

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NO Store HTTP Cache-Control

NO Store HTTP Cache-Control

2021-08-01 / 2023-05-08

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No Cache Content

No Cache Content

2021-08-01 / 2023-05-08

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Block Content Sniffing

Block Content Sniffing

2021-08-01 / 2023-05-08

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Meta Description

Meta Description (removed)

2021-08-01 / 2021-08-01

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Framworks

PHP 7.3.27

PHP 7.3.27

2023-05-08 / 2023-05-08

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PHP 7.3.18

PHP 7.3.18 (removed)

2021-08-01 / 2021-08-01

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Operating Systems and Servers

Apache 2

Apache 2

2021-08-01 / 2023-05-08

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Profile Details

Last technolgie detected on 2023-05-08 We know of 22 technologies on dvms.vn and 25 technologies detected on dvms.vn since 2021-08-01.




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