constitution.org

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Document Standards

Age HTTP Header - Original Server Response

Age HTTP Header - Original Server Response

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   The Age header contains the time in seconds the object has been in a proxy cache.


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.


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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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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Cache-Control Header Max-Age

Cache-Control Header Max-Age

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   Specifies the maximum amount of time a resource will be considered fresh. Contrary to Expires, this directive is relative to the time of the request. this website is having max-age=0 secs.


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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Private Cache-Control Header

Private Cache-Control Header

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   The Cache-Control general-header field is used to specify directives for caching mechanisms in both requests and responses. Caching directives are unidirectional, meaning that a given directive in a request is not implying that the same directive is to be given in the response.


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


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.


XFN 1.1

XFN 1.1

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   XFN is a technical term that is an acronym that stands for “XHTML Friends Network.” This is primarily used by websites that want to create a series of referral links between other websites in order to boost SEO ratings.

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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.


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

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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"




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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Language

English - Language

English - Language

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   this website is using English as a language parameter


English United State - Language

English United State - Language

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   this website is using English as a language parameter




Framworks

Varnish

Varnish

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   Varnish is an HTTP accelerator designed for content-heavy dynamic web sites as well as APIs. In contrast to other web accelerators, such as Squid, which began life as a client-side cache, or Apache and nginx, which are primarily origin servers, Varnish was designed as an HTTP accelerator.


PHP 7.4.21

PHP 7.4.21

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

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Operating Systems and Servers

Nginx

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.

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Nginx 1.14.0

Nginx 1.14.0

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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.

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Web Servers

Server partial requests support

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.




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  - 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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Viewport  - initial-scale

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.

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Content Management System

WordPress 5.8

WordPress 5.8

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   WordPress is a content management system based on PHP and MySQL that is usually used with the MySQL or MariaDB database servers but can also use the SQLite database engine.




Document Standards

Age HTTP Header - Original Server Response

Age HTTP Header - Original Server Response (removed)

2019-05-25 / 2019-05-25

|

No Cache Content

No Cache Content (removed)

2019-05-25 / 2021-08-01

|

NO Store HTTP Cache-Control

NO Store HTTP Cache-Control (removed)

2019-05-25 / 2021-08-01

|

Must Revalidate HTTP Cache-Control

Must Revalidate HTTP Cache-Control (removed)

2019-05-25 / 2021-08-01

|

Cache-Control Header Max-Age

Cache-Control Header Max-Age (removed)

2019-05-25 / 2021-08-01

|

Vary Header Accept-Encoding

Vary Header Accept-Encoding (removed)

2019-05-25 / 2019-05-25

|

Private Cache-Control Header

Private Cache-Control Header

2023-05-09 / 2023-05-09

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No Cache Content

No Cache Content

2023-05-09 / 2023-05-09

|

NO Store HTTP Cache-Control

NO Store HTTP Cache-Control

2023-05-09 / 2023-05-09

|

Must Revalidate HTTP Cache-Control

Must Revalidate HTTP Cache-Control

2023-05-09 / 2023-05-09

|

Cache-Control Header Max-Age

Cache-Control Header Max-Age

2023-05-09 / 2023-05-09

|

Vary Header check for User-Agent

Vary Header check for User-Agent

2021-08-01 / 2023-05-09

|

Vary Header Accept-Encoding

Vary Header Accept-Encoding

2021-08-01 / 2023-05-09

|

Vary Header Accept-Encoding

Vary Header Accept-Encoding (removed)

2021-08-01 / 2021-08-01

|

Block Content Sniffing

Block Content Sniffing

2023-05-09 / 2023-05-09

|

XFN 1.1

XFN 1.1

2023-05-09 / 2023-05-09

|



Document Encoding

Character Encoding :utf-8

Character Encoding :utf-8 (removed)

2019-05-25 / 2019-05-25

|

Character Encoding :UTF-8

Character Encoding :UTF-8

2021-08-01 / 2023-05-09

|

Gzip Content-Encoding

Gzip Content-Encoding

2021-08-01 / 2023-05-09

|

Chunked transfer encoding

Chunked transfer encoding

2021-08-01 / 2023-05-09

|



Email Hosting Providers

SPF

SPF

2023-05-09 / 2023-05-09

|



Language

English - Language

English - Language (removed)

2019-05-25 / 2019-05-25

|

English United State - Language

English United State - Language

2021-08-01 / 2023-05-09

|

English - Language

English - Language

2021-08-01 / 2023-05-09

|



Framworks

Varnish

Varnish (removed)

2019-05-25 / 2019-05-25

|

PHP 7.4.21

PHP 7.4.21 (removed)

2021-08-01 / 2021-08-01

|



Operating Systems and Servers

Nginx

Nginx

2021-08-01 / 2023-05-09

|

Nginx 1.14.0

Nginx 1.14.0 (removed)

2019-05-25 / 2019-05-25

|



Web Servers

Server partial requests support

Server partial requests support (removed)

2019-05-25 / 2019-05-25

|



Mobile

Viewport  - Width

Viewport - Width

2021-08-01 / 2023-05-09

|

Viewport  - Mobile compatible

Viewport - Mobile compatible

2021-08-01 / 2023-05-09

|

Viewport  - initial-scale

Viewport - initial-scale

2021-08-01 / 2023-05-09

|



Content Management System

WordPress 5.8

WordPress 5.8 (removed)

2021-08-01 / 2021-08-01

|



Profile Details

Last technolgie detected on 2023-05-09 We know of 26 technologies on constitution.org and 33 technologies detected on constitution.org since 2019-05-25.




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