validator.w3.org

Find out what technologies validator.w3.org is using
Document Encoding

Character Encoding :utf-8

Character Encoding :utf-8

Download List of All Websites using Character Encoding :utf-8

   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

Download List of All Websites using Gzip Content-Encoding

   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.




Email Hosting Providers

G Suite

G Suite

Download List of All Websites using G Suite

   formerly Google Apps for Work and Google Apps for Your Domain is a brand of cloud computing, productivity and collaboration tools, software and products developed by Google.

Tags:


SPF

SPF

Download List of All Websites using SPF

   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.

Tags:




Language

English - Language

English - Language

Download List of All Websites using English - Language

   this website is using English as a language parameter




Document Standards

Cache-Control Header Max-Age

Cache-Control Header Max-Age

Download List of All Websites using Cache-Control Header Max-Age

   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=604800 secs.


Meta keywords

Meta keywords

Download List of All Websites using Meta keywords

   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: HTML, HyperText Markup Language, Validation, W3C Markup Validation Service

Tags:


Vary Header Accept-Encoding

Vary Header Accept-Encoding

Download List of All Websites using Vary Header Accept-Encoding

   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.

Tags:


Meta Description

Meta Description

Download List of All Websites using Meta Description

   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 : W3C's easy-to-use markup validation service, based on SGML and XML parsers.




Web Servers

Server partial requests support

Server partial requests support

Download List of All Websites using Server partial requests support

   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.




Operating Systems and Servers

Cloudflare

Cloudflare

Download List of All Websites using Cloudflare

   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




Document Encoding

Character Encoding :utf-8

Character Encoding :utf-8

2019-05-25 / 2023-05-07

|

Gzip Content-Encoding

Gzip Content-Encoding

2021-07-31 / 2023-05-07

|



Email Hosting Providers

G Suite

G Suite

2023-05-07 / 2023-05-07

|

SPF

SPF

2019-05-25 / 2023-05-07

|



Language

English - Language

English - Language

2019-05-25 / 2023-05-07

|



Document Standards

Cache-Control Header Max-Age

Cache-Control Header Max-Age

2019-05-25 / 2023-05-07

|

Meta keywords

Meta keywords

2019-05-25 / 2023-05-07

|

Vary Header Accept-Encoding

Vary Header Accept-Encoding

2019-05-25 / 2023-05-07

|

Meta Description

Meta Description

2019-05-25 / 2023-05-07

|



Operating Systems and Servers

Apache 2.4.25 |Operating System:Debian

Apache 2.4.25 |Operating System:Debian (removed)

2019-05-25 / 2019-05-25

|

Cloudflare

Cloudflare

2023-05-07 / 2023-05-07

|

Apache 2.4.38 |Operating System:Debian

Apache 2.4.38 |Operating System:Debian (removed)

2021-07-31 / 2021-07-31

|



Web Servers

Server partial requests support

Server partial requests support

2019-05-25 / 2023-05-07

|



Profile Details

Last technolgie detected on 2023-05-07 We know of 11 technologies on validator.w3.org and 13 technologies detected on validator.w3.org since 2019-05-25.




Download our browser extension from here.


Notify me when technology changes on validator.w3.org


Suggest technology

Can't find the technology you are looking for? Send us a suggestion, we will try and add it to our database.