pnas.org

Find out what technologies pnas.org is using
Document Standards

HSTS - Browser HTTPS Only

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 15552000 seconds


X-Frame-Options Header

X-Frame-Options Header

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   The X-Frame-Options HTTP response header can be used to indicate whether or not a browser should be allowed to render a page in a <frame>, <iframe>, <embed> or <object>. Sites can use this to avoid clickjacking attacks, by ensuring that their content is not embedded into other sites.


schema.org micro-markup

schema.org micro-markup

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   Schema.org is a collaborative, community activity with a mission to create, maintain, and promote schemas for structured data on the Internet, on web pages, in email messages, and beyond.

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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.


XSS-Protection Header

XSS-Protection Header

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   The HTTP X-XSS-Protection response header is a feature of Internet Explorer, Chrome and Safari that stops pages from loading when they detect reflected cross-site scripting (XSS) attacks. Although these protections are largely unnecessary in modern browsers when sites implement a strong Content-Security-Policy that disables the use of inline JavaScript (`unsafe-inline`), they can still provide protections for users of older web browsers that don`t yet support CSP.


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.




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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SendGrid

SendGrid

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   SendGrid is a Denver, Colorado-based customer communication platform for transactional and marketing email.

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Language

English - Language

English - Language

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   this website is using English as a language parameter




Widgets

Google Tag Manager

Google Tag Manager

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   Google Tag Manager is a tag management system created by Google to manage JavaScript and HTML tags used for tracking and analytics on websites (variants of e-marketing tags, sometimes referred to as tracking pixels or web beacons.

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Document Encoding

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.


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.


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"




Operating Systems and Servers

Cloudflare

Cloudflare

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   Cloudflare, Inc. is an American web infrastructure and website security company, providing content delivery network services, DDoS mitigation, Internet security, and distributed domain name server services




Mobile

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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Viewport  - Width

Viewport - Width

Download List of All Websites using Viewport - Width

   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

Download List of All Websites using Viewport - Mobile compatible

   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

Age HTTP Header - Original Server Response

Age HTTP Header - Original Server Response (removed)

2021-07-31 / 2021-12-06

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HSTS - Browser HTTPS Only

HSTS - Browser HTTPS Only

2023-05-07 / 2023-05-07

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Cloudflare Certificate Transparency

Cloudflare Certificate Transparency (removed)

2021-07-31 / 2021-12-06

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Must Revalidate HTTP Cache-Control

Must Revalidate HTTP Cache-Control (removed)

2021-07-31 / 2021-12-06

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Public Cache-Control

Public Cache-Control (removed)

2021-07-31 / 2021-12-06

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Proxy Revalidate HTTP Cache-Control

Proxy Revalidate HTTP Cache-Control (removed)

2021-07-31 / 2021-12-06

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Cache-Control Header Max-Age

Cache-Control Header Max-Age (removed)

2021-07-31 / 2021-12-06

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Precheck Cache-Control Header

Precheck Cache-Control Header (removed)

2021-07-31 / 2021-12-06

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Post Cache-Control Header

Post Cache-Control Header (removed)

2021-07-31 / 2021-12-06

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X-Frame-Options Header

X-Frame-Options Header

2021-07-31 / 2023-05-07

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Pragma Header - backwards compatibility with HTTP/1.0

Pragma Header - backwards compatibility with HTTP/1.0 (removed)

2021-07-31 / 2021-12-06

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schema.org micro-markup

schema.org micro-markup

2023-05-07 / 2023-05-07

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Block Content Sniffing

Block Content Sniffing

2021-07-31 / 2023-05-07

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Vary Header check for cookies

Vary Header check for cookies (removed)

2021-07-31 / 2021-12-06

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Vary Header Accept-Encoding

Vary Header Accept-Encoding (removed)

2021-07-31 / 2021-12-06

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XSS-Protection Header

XSS-Protection Header

2023-05-07 / 2023-05-07

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No Cache Content

No Cache Content

2023-05-07 / 2023-05-07

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Document Encoding

Character Encoding :utf-8

Character Encoding :utf-8 (removed)

2021-07-31 / 2021-12-06

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Gzip Content-Encoding

Gzip Content-Encoding

2023-05-07 / 2023-05-07

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Character Encoding :UTF-8

Character Encoding :UTF-8

2023-05-07 / 2023-05-07

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Chunked transfer encoding

Chunked transfer encoding

2021-12-06 / 2023-05-07

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Email Hosting Providers

SPF

SPF

2023-05-07 / 2023-05-07

|

SendGrid

SendGrid

2023-05-07 / 2023-05-07

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Mobile

Viewport  - Width

Viewport - Width (removed)

2021-07-31 / 2021-12-06

|

Viewport  - initial-scale

Viewport - initial-scale (removed)

2021-07-31 / 2021-12-06

|

Viewport  - Mobile compatible

Viewport - Mobile compatible (removed)

2021-07-31 / 2021-12-06

|

Viewport  - initial-scale

Viewport - initial-scale

2023-05-07 / 2023-05-07

|

Viewport  - Width

Viewport - Width

2023-05-07 / 2023-05-07

|

Viewport  - Mobile compatible

Viewport - Mobile compatible

2023-05-07 / 2023-05-07

|



Language

English - Language

English - Language

2021-07-31 / 2023-05-07

|

English - Language

English - Language (removed)

2021-07-31 / 2021-12-06

|



Widgets

Google Tag Manager

Google Tag Manager

2023-05-07 / 2023-05-07

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Framworks

Varnish

Varnish (removed)

2021-07-31 / 2021-12-06

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Web Servers

Server partial requests support

Server partial requests support (removed)

2021-07-31 / 2021-07-31

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Operating Systems and Servers

Cloudflare

Cloudflare

2021-07-31 / 2023-05-07

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Profile Details

Last technolgie detected on 2023-05-07 We know of 17 technologies on pnas.org and 35 technologies detected on pnas.org since 2021-07-31.




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