PROGRAMING

Technologies

Content Management
Server-side Languages
Client-side Languages
JavaScript Libraries
Markup Languages
Character Encodings
Image File Formats
Site Elements
Structured Data
SSL Certificate Authorities
Social Widgets
Content Delivery
Traffic Analysis Tools
Advertising Networks
Tag Managers
Web Servers
Operating Systems
Web Hosting
Reverse Proxies
Top Level Domains
Server Locations
Content Languages

Technologies Overview

Select one of the technologies listed on the left to get the survey on the technology usage statistics.
In any diagram, you can drill down to obtain more details by clicking on a specific technology or technology version.
When interpreting our surveys, you should know the following:

• We investigate technologies of websites, not of individual web pages. If we find a technology on any of the pages, it is considered to be used by the website.
• We include only the top 10 million websites (top 1 million before June 2013) in the statistics in order to limit the impact of domain spammers. We use website popularity rankings provided by Alexa (an Amazon.com company) using a 3 months average ranking. Alexa rankings are sometimes considered inaccurate for measuring website traffic, but we find that they serve our purpose of providing a representative sample of established sites very well.
• We do not consider subdomains to be separate websites. For instance, sub1.example.com and sub2.example.com are considered to belong to the same site as example.com. That means for example, that all the subdomains of blogger.com, wordpress.com and similar sites are counted only as one website.
• We do not include redirected domains. For example, Sun.com redirects to Oracle.com, and is therefore not counted.
• Because our definition of "website" differs a bit from Alexa's definition, the "top 10 million" websites are actually less than 10 million. However, this has no statistical significance.
• Our reports are updated daily.
• Please be aware of the limitations indicated in our 

You can find more information about our methodology in the https://lukwijecomputerservices.blogspot.com/ section.
When using the results, please read our



 Server-side Languages

Usage of server-side programming languages for websites

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This diagram shows the percentages of websites using various server-side programming languages. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily.
How to read the diagram:
PHP is used by 78.9% of all the websites whose server-side programming language we know.

PHP	78.9%
ASP.NET	12.0%
Java	3.9%
static files	2.2%
Ruby	2.2%
Scala	1.2%
Python	1.2%
JavaScript	0.6%
ColdFusion	0.5%
Perl	0.3%
Erlang	0.1%
	W3Techs.com, 1 November 2018
Percentages of websites using various server-side programming languages Note: a website may use more than one server-side programming language

The following server-side programming languages are used by less than 0.1% of the websites

• Miva Script
• C
• Lasso
• Lua
• Smalltalk
• Tcl
• C++
• Haskell
• Lisp
• Ada

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Usage of client-side programming languages for websites

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This diagram shows the percentages of websites using various client-side programming languages. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily.
How to read the diagram:
5% of the websites use none of the client-side programming languages that we monitor.
JavaScript is used by 94.9% of all the websites.

None	5.0%
JavaScript	94.9%
Flash	4.2%
Silverlight	0.1%
	W3Techs.com, 1 November 2018
Percentages of websites using various client-side programming languages Note: a website may use more than one client-side programming language

The following client-side programming languages have a market share of less than 0.1%

• Java

Usage of JavaScript libraries for websites

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This diagram shows the percentages of websites using various JavaScript libraries. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily.
How to read the diagram:
24.5% of the websites use none of the JavaScript libraries that we monitor.
jQuery is used by 73.4% of all the websites, that is a JavaScript library market share of 97.2%.

None	24.5%
jQuery	73.4% 97.2%
Bootstrap	18.0% 23.9%
Modernizr	11.4% 15.1%
Underscore	2.7% 3.5%
MooTools	2.4% 3.2%
ASP.NET Ajax	1.7% 2.3%
Prototype	1.2% 1.6%
Moment.js	1.2% 1.6%
Script.aculo.us	1.0% 1.3%
Backbone	0.9% 1.2%
Angular	0.4% 0.6%
GSAP	0.4% 0.6%
YUI Library	0.3% 0.4%
Shadowbox	0.3% 0.3%
Spry	0.2% 0.3%
Lodash	0.1% 0.2%
Polyfill.io	0.1% 0.2%
React	0.1% 0.2%
Vue.js	0.1% 0.2%
MathJax	0.1% 0.1%
Knockout	0.1% 0.1%
Dojo	0.1% 0.1%
Ext JS	0.1% 0.1%
Semantic UI	less than 0.1% 0.1%
	W3Techs.com, 1 November 2018
absolute usage percentagemarket share
Percentages of websites using various JavaScript libraries Note: a website may use more than one JavaScript library

The following JavaScript libraries have a market share of less than 0.1%

• Zepto
• Meteor
• Sizzle
• DHTMLX
• p5.js
• Riot
• Ember.js
• MochiKit
• Mithril
• A-Frame
• DOMAssistant
• Midori
• UIZE
• Webix
• Google Closure Library
• Glow
• SproutCore
• JavaScriptMVC

Usage of markup languages for websites

This diagram shows the percentages of websites using various markup languages. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily.
How to read the diagram:
HTML is used by 83.9% of all the websites whose markup language we know.

HTML	83.9%
XHTML	16.4%
	W3Techs.com, 1 November 2018
Percentages of websites using various markup languages Note: a website may use more than one markup language

Usage of character encodings for websites

This diagram shows the percentages of websites using various character encodings. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily.
How to read the diagram:
UTF-8 is used by 92.5% of all the websites whose character encoding we know.

UTF-8	92.5%
ISO-8859-1	3.7%
Windows-1251	1.1%
Windows-1252	0.7%
Shift JIS	0.4%
GB2312	0.4%
EUC-KR	0.3%
ISO-8859-2	0.2%
GBK	0.2%
Windows-1250	0.1%
EUC-JP	0.1%
ISO-8859-15	0.1%
Big5	0.1%
Windows-1256	0.1%
ISO-8859-9	0.1%
	W3Techs.com, 1 November 2018
Percentages of websites using various character encodings

The following character encodings are used by less than 0.1% of the websites

• Windows-1254
• Windows-874
• US-ASCII
• Windows-1255
• TIS-620
• ISO-8859-7
• Windows-1253
• UTF-16
• KOI8-R
• KS C 5601
• Windows-1257
• GB18030
• UTF-7
• Windows-31J
• ISO-8859-8
• ISO-8859-4
• ISO-8859-5
• ISO-8859-6
• ANSI_X3.110-1983
• KOI8-U
• ISO-8859-13
• ISO-2022-JP
• Big5 HKSCS
• ISO-8859-16
• ISO-8859-3
• Windows-1258
• Windows-949
• ISO-8859-10
• ISO-8859-11
• ISO-8859-14

Usage of image file formats for websites

This diagram shows the percentages of websites using various image file formats. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily.
How to read the diagram:
9.7% of the websites use none of the image file formats that we monitor.
PNG is used by 74.4% of all the websites.

None	9.7%
PNG	74.4%
JPEG	72.7%
GIF	28.4%
SVG	14.1%
BMP	0.2%
ICO	0.1%
	W3Techs.com, 1 November 2018
Percentages of websites using various image file formats Note: a website may use more than one image file format

The following image file formats have a market share of less than 0.1%

• WebP
• TIFF

Usage of site elements for websites

This diagram shows the percentages of websites using various site elements. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily.
How to read the diagram:
0.6% of the websites use none of the site elements that we monitor.
CSS is used by 95.7% of all the websites.

None	0.6%
CSS	95.7%
Compression	76.6%
Cookies	47.0%
protocol https	42.7%
subdomain www Default	42.5%
HTTP/2	30.9%
ETag	14.4%
IPv6	13.0%
HTTP Strict Transport Security	8.5%
QUIC	1.2%
SPDY	0.7%
Frameset	0.6%
								Usage of structured data formats for websites This diagram shows the percentages of websites using various structured data formats. See technologies overview for explanations on the methodologies used in the surveys. Our reports are updated daily. How to read the diagram: 50.1% of the websites use none of the structured data formats that we monitor. RDFa is used by 43.6% of all the websites. None 50.1% RDFa 43.6% Meta-tag-based formats 24.7% JSON-LD 21.9% Microdata 15.6% Microformats 0.1% W3Techs.com, 1 November 2018 Percentages of websites using various structured data formats Note: a website may use more than one structured data format