Common X-Powered-By header values:

• X-Powered-By: ASP.NET
• X-Powered-By: PHP/5.1.6
• X-Powered-By: PHP/5.2.6
• X-Powered-By: PHP/5.2.5
• X-Powered-By: PHP/4.3.9
• X-Powered-By: PHP/4.4.4
• X-Powered-By: PHP/5.2.1
• X-Powered-By: PHP/4.3.11
• X-Powered-By: PHP/4.4.7
• X-Powered-By: PHP/4.4.8
• X-Powered-By: PHP/5.2.3
• X-Powered-By: PHP/5.2.4
• X-Powered-By: PHP/4.3.10
• X-Powered-By: PHP/5.2.0-8+etch11
• X-Powered-By: PHP/5.1.2
• X-Powered-By: PHP/5.0.4
• X-Powered-By: PHP/4.4.2
• X-Powered-By: PHP/5.2.0
• X-Powered-By: PHP/4.3.4
• X-Powered-By: PHP/4.4.1
• X-Powered-By: PleskWin
• X-Powered-By: PHP/4.4.0
• X-Powered-By: PHP/4.3.2-RC1
• X-Powered-By: PHP/4.3.2
• X-Powered-By: PHP/5.2.0-8+etch10
• X-Powered-By: PHP/4.4.6
• X-Powered-By: PHP/5.2.2
• X-Powered-By: PHP/5.1.4
• X-Powered-By: PHP/4.2.2
• X-Powered-By: PHP/4.3.8
• X-Powered-By: PHP/4.1.2
• X-Powered-By: PHP/4.4.4-8+etch4
• X-Powered-By: PHP/4.3.10-16
• X-Powered-By: PHP/4.3.10-22
• X-Powered-By: PHP/4.4.4-8+etch6
• X-Powered-By: PHP/4.3.3
• X-Powered-By: PHP/5.1.1
• X-Powered-By: PHP/4.4.9
• X-Powered-By: PHP/5.2.3-1ubuntu6.3
• X-Powered-By: PHP/4.3.1
• X-Powered-By: PHP/5.2.4-2ubuntu5.3
• X-Powered-By: PHP/5.0.5
• X-Powered-By: PHP/5.2.0-8+etch7
• X-Powered-By: PHP/4.2.3
• X-Powered-By: PHP/4.3.6
• X-Powered-By: WebServer
• X-Powered-By: PHP/4.4.5
• X-Powered-By: PHP/5.2.0-8+etch9
• X-Powered-By: PHP/4.3.5
• X-Powered-By: PHP/5.2.6RC4-pl0-gentoo
• X-Powered-By: Servlet 2.4; JBoss-4.0.4.GA (build: CVSTag=JBoss_4_0_4_GA date=200605151000)/Tomcat-5.5
• X-Powered-By: PHP/4.4.3
• X-Powered-By: PHP/4.3.7
• X-Powered-By: PHP/5.0.3
• X-Powered-By: PHP/5.2.4-2ubuntu5.1
• X-Powered-By: PHP/5.2.5-pl1-gentoo
• X-Powered-By: PHP/4.0.6
• X-Powered-By: PHP/5.2.4-2ubuntu5.2
• X-Powered-By: PHP/5.2.2-pl1-gentoo
• X-Powered-By: Servlet/2.4 JSP/2.0
• X-Powered-By: PHP/4.3.10-18
• X-Powered-By: PHP/4.4.2-1build1
• X-Powered-By: Servlet 2.4; JBoss-4.0.3SP1 (build: CVSTag=JBoss_4_0_3_SP1 date=200510231054)/Tomcat-5.5
• X-Powered-By: Servlet 2.4; JBoss-4.0.5.GA (build: CVSTag=Branch_4_0 date=200610162339)/Tomcat-5.5
• X-Powered-By: Webserver
• X-Powered-By: ASP.NET 2.0
• X-Powered-By: PHP/4.3.0
• X-Powered-By: PHP/4.3.10-19
• X-Powered-By: PHP/5.2.3-1ubuntu6.4
• X-Powered-By: PHP/5.2.4_p20070914-pl2-gentoo
• X-Powered-By: PHP/5.2.6-0.dotdeb.1
• X-Powered-By: PHP/5.2.6-pl2-gentoo
• X-Powered-By: Servlet 2.4; JBoss-4.2.1.GA (build: SVNTag=JBoss_4_2_1_GA date=200707131605)/Tomcat-5.5
• X-Powered-By: PHP/4.2.1
• X-Powered-By: PHP/4.4.7-0.dotdeb.0
• X-Powered-By: PHP/5.2.5-3
• X-Powered-By: PHP/5.2.6-pl6-gentoo
• X-Powered-By: SecureNetSystems.net
• X-Powered-By: PHP/5.0.2
• X-Powered-By: PHP/5.0.5-2ubuntu1.2
• X-Powered-By: PHP/5.1.2-1
• X-Powered-By: PHP/5.1.5
• X-Powered-By: PHP/5.2.1-pl3-gentoo
• X-Powered-By: PHP/5.2.4-2ubuntu5
• X-Powered-By: Servlet 2.4; JBoss-4.2.2.GA (build: SVNTag=JBoss_4_2_2_GA date=200710221139)/Tomcat-5.5
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-3.2.6 (build: CVSTag=JBoss_3_2_6 date=200807081011)
• X-Powered-By: PHP/4.2.0
• X-Powered-By: PHP/5.0.0
• X-Powered-By: PHP/5.1.0RC1
• X-Powered-By: PHP/5.1.6-pl6-gentoo
• X-Powered-By: PHP/5.2.0-10
• X-Powered-By: PHP/5.2.3-1ubuntu6
• X-Powered-By: PHP/5.2.6-2+b1
• X-Powered-By: Servlet/2.5
• X-Powered-By: PHP/4.3.10-15
• X-Powered-By: PHP/4.4.7-pl0-gentoo
• X-Powered-By: PHP/4.4.8-0.dotdeb.0
• X-Powered-By: PHP/5.0.1
• X-Powered-By: PHP/5.2.0-8
• X-Powered-By: PHP/5.2.0-8+etch1
• X-Powered-By: PHP/5.2.3-0.dotdeb.0
• X-Powered-By: PHP/5.2.5-0.dotdeb.2
• X-Powered-By: PHP/5.2.6-3
• X-Powered-By: Servlet 2.4; JBoss-4.0.2 (build: CVSTag=JBoss_4_0_2 date=200505022023)/Tomcat-5.5
• X-Powered-By: Servlet 2.4; JBoss-4.0.3SP1 (build: CVSTag=JBoss_4_0_3_SP1 date=200510231751)/Tomcat-5.5
• X-Powered-By: Servlet 2.4; JBoss-4.2.0.GA (build: SVNTag=JBoss_4_2_0_GA date=200705111440)/Tomcat-5.5
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-3.2.6 (build: CVSTag=JBoss_3_2_6 date=200410140106)
• X-Powered-By: Servlet/2.4
• X-Powered-By: UrlRewriter.NET 2.0.0
• X-Powered-By: ""
• X-Powered-By: ColdFusion
• X-Powered-By: ElementK
• X-Powered-By: JSP/2.0
• X-Powered-By: JSP/2.1
• X-Powered-By: ModLayout/4.0.2a
• X-Powered-By: PHP
• X-Powered-By: PHP/3.0.16
• X-Powered-By: PHP/4.0.3pl1
• X-Powered-By: PHP/4.1.0
• X-Powered-By: PHP/4.3.8-5
• X-Powered-By: PHP/4.4.0-4
• X-Powered-By: PHP/4.4.1-pl1
• X-Powered-By: PHP/4.4.2-1
• X-Powered-By: PHP/4.4.2-1.1
• X-Powered-By: PHP/4.4.4 with Hardening-Patch
• X-Powered-By: PHP/4.4.4-8+etch1
• X-Powered-By: PHP/4.4.4-8+etch2
• X-Powered-By: PHP/4.4.4-9+lenny1
• X-Powered-By: PHP/4.4.4-pl6-gentoo
• X-Powered-By: PHP/5.1.0
• X-Powered-By: PHP/5.1.6-1
• X-Powered-By: PHP/5.1.6-pl8-gentoo
• X-Powered-By: PHP/5.2.0-8+etch1~bpo.1
• X-Powered-By: PHP/5.2.0-8+etch5~pu1
• X-Powered-By: PHP/5.2.1-0.dotdeb.1
• X-Powered-By: PHP/5.2.2-0.dotdeb.1
• X-Powered-By: PHP/5.2.3-1+b1
• X-Powered-By: PHP/5.2.3-1+lenny1
• X-Powered-By: PHP/5.2.3-1ubuntu6.2
• X-Powered-By: PHP/5.2.4-2+b1
• X-Powered-By: PHP/5.2.4-pl2-gentoo
• X-Powered-By: PHP/5.2.5-0.dotdeb.0
• X-Powered-By: PHP/5.2.5-2
• X-Powered-By: PHP/5.2.5-3+lenny1
• X-Powered-By: PHP/5.2.5-p20080206-pl3-gentoo
• X-Powered-By: PHP/5.2.5-pl0-gentoo
• X-Powered-By: PHP/5.2.6-1
• X-Powered-By: PHP/5.2.6-pl5-gentoo
• X-Powered-By: PHP/5.2.6RC1-pl1-gentoo
• X-Powered-By: PHP/5.2.6RC3-pl0-gentoo
• X-Powered-By: Phusion Passenger (mod_rails) 1.0.5
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-3.2.6 (build: CVSTag=JBoss_3_2_6 date=200705110949)
• X-Powered-By: Zend Core/2.0.1 PHP/5.2.1
• X-Powered-By: Zope (www.zope.org), Python (www.python.org)
• X-Powered-By: eZ Publish
• X-Powered-By: eZ publish
• X-Powered-By: ASP .NET
• X-Powered-By: ASP.Net:
• X-Powered-By: Adobe Coldfusion
• X-Powered-By: Biferno (<A HREF="http://www.biferno.it">http://www.biferno.it</A>)
• X-Powered-By: CGI::WebOut v2.25 (http://www.dklab.ru/chicken/4.html), (C) by Dmitry Koterov
• X-Powered-By: CryoHost.NET
• X-Powered-By: Dragonfly CMS using PHP engine
• X-Powered-By: EDOO Framework 2.0
• X-Powered-By: EnfoldProxy 3.0.1.7071 (http://www.enfoldsystems.com/Products/Proxy)
• X-Powered-By: Fifa.com
• X-Powered-By: HostCMS 97e23b3c65a62f4aa31e77744986bd01 a2e5953046114e756b08a5d7040078a5
• X-Powered-By: Internet Concepts
• X-Powered-By: JSF/1.2
• X-Powered-By: KHXC/6.6.3
• X-Powered-By: LIL
• X-Powered-By: LMS/1.9-cvs
• X-Powered-By: Lussumo Vanilla 1.1.4
• X-Powered-By: MABB Hosting
• X-Powered-By: MOGI.systems
• X-Powered-By: MS DOS Server Premium Edition
• X-Powered-By: ModLayout/3.2
• X-Powered-By: ModLayout/3.2.1
• X-Powered-By: Mono.NET
• X-Powered-By: NetCat/2.4.244 (Standard)
• X-Powered-By: Netsize INet
• X-Powered-By: PHP/3.0.14
• X-Powered-By: PHP/4.0.2
• X-Powered-By: PHP/4.3.10-16.swsoft.1
• X-Powered-By: PHP/4.3.10-2
• X-Powered-By: PHP/4.3.10-20
• X-Powered-By: PHP/4.3.10-21
• X-Powered-By: PHP/4.3.10-22+sdinetB1
• X-Powered-By: PHP/4.3.11 with Hardening-Patch
• X-Powered-By: PHP/4.3.11-dev
• X-Powered-By: PHP/4.3.4RC1
• X-Powered-By: PHP/4.3.5RC3
• X-Powered-By: PHP/4.3.5RC4-dev
• X-Powered-By: PHP/4.3.8-9
• X-Powered-By: PHP/4.3.9-1.dotdeb.1
• X-Powered-By: PHP/4.3.9RC2
• X-Powered-By: PHP/4.4.0-3
• X-Powered-By: PHP/4.4.3-dev
• X-Powered-By: PHP/4.4.4-8
• X-Powered-By: PHP/4.4.4-8+etch3
• X-Powered-By: PHP/4.4.4-9
• X-Powered-By: PHP/4.4.4-pl4-gentoo
• X-Powered-By: PHP/4.4.5-dev
• X-Powered-By: PHP/4.4.7-0.dotdeb.1
• X-Powered-By: PHP/4.4.8-0.dotdeb.1
• X-Powered-By: PHP/4.4.8-dev
• X-Powered-By: PHP/4.4.8_pre20070816-pl0-gentoo
• X-Powered-By: PHP/4.5.0-dev
• X-Powered-By: PHP/5.0.0RC3
• X-Powered-By: PHP/5.0.3-1.dotdeb.0
• X-Powered-By: PHP/5.0.3RC2
• X-Powered-By: PHP/5.0.4-1.dotdeb.1
• X-Powered-By: PHP/5.0.5-1.dotdeb.1
• X-Powered-By: PHP/5.0.5-20051114
• X-Powered-By: PHP/5.1.0b2
• X-Powered-By: PHP/5.1.2-dev
• X-Powered-By: PHP/5.1.2AnNyung
• X-Powered-By: PHP/5.1.6 with Hardening-Patch
• X-Powered-By: PHP/5.1.6-0.dotdeb.2
• X-Powered-By: PHP/5.1.6-pl11-gentoo
• X-Powered-By: PHP/5.2.0-8+etch4
• X-Powered-By: PHP/5.2.0-8+etch7~bpo.1
• X-Powered-By: PHP/5.2.0-8.4.3
• X-Powered-By: PHP/5.2.0-dev
• X-Powered-By: PHP/5.2.0RC3-dev
• X-Powered-By: PHP/5.2.1, PHP/5.2.1
• X-Powered-By: PHP/5.2.3-1ubuntu6.1
• X-Powered-By: PHP/5.2.4 (x64)
• X-Powered-By: PHP/5.2.4-0+tld0
• X-Powered-By: PHP/5.2.4-0.dotdeb.1
• X-Powered-By: PHP/5.2.4-1+b1
• X-Powered-By: PHP/5.2.4-2
• X-Powered-By: PHP/5.2.5; Qcodo/0.3.43 (Qcodo Beta 3)
• X-Powered-By: PHP/5.2.6-dev
• X-Powered-By: PHP/5.2.6-pl1-gentoo
• X-Powered-By: PHP/5.2.6RC2-dev
• X-Powered-By: PHP/5.3.0-dev
• X-Powered-By: Phrame/0.0.14
• X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 2.0.1
• X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 2.0.2
• X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 2.0.3
• X-Powered-By: Servlet 2.4; JBoss-4.2.0.CR1 (build: SVNTag=JBoss_4_2_0_CR1 date=200703051212)/Tomcat-5.5
• X-Powered-By: Servlet 2.4; JBoss-4.2.0.GA (build: SVNTag=JBoss_4_2_0_GA date=200707041742)/Tomcat-5.5
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-3.2.6 (build: CVSTag=JBoss_3_2_6 date=200608091836)
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-3.2.6 (build: CVSTag=JBoss_3_2_6 date=200712201047)
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-3.2.6 (build: CVSTag=JBoss_3_2_6 date=200802071055)
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-3.2.7 (build: CVSTag=JBoss_3_2_7 date=200501270222)
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-3.2.8.SP1 (build: CVSTag=JBoss_3_2_8_SP1 date=200603031235)
• X-Powered-By: Servlet 2.4; Tomcat-5.0.28/JBoss-4.0.0 (build: CVSTag=JBoss_4_0_0 date=200409200418)
• X-Powered-By: Servlet/2.5 JSP/2.1
• X-Powered-By: TakeMarket
• X-Powered-By: Test.eelect.com
• X-Powered-By: UrlRewriter.NET 1.7.0
• X-Powered-By: UrlRewriter.NET 1.8.0
• X-Powered-By: VP1 IntraView
• X-Powered-By: Vos & Howden, LLC (http://vosandhowden.com/)
• X-Powered-By: WAE Technologies, Inc.
• X-Powered-By: WEB4
• X-Powered-By: WEBSPHERE
• X-Powered-By: Yellow v1.0a
• X-Powered-By: Zaadz
• X-Powered-By: Zend Core/2.5.0 PHP/5.2.5
• X-Powered-By: eventsInteractive
• X-Powered-By: http://bilda.mobi/
• X-Powered-By: iPyramid.system/1.5
• X-Powered-By: interconf/1.0.1
• X-Powered-By: markt.de
• X-Powered-By: safe_http
• X-Powered-By: static/html
• X-Powered-By: tutela
• X-Powered-By: www.jingo.com

The non-standard "X-Powered-By" header is only sent by:

• Microsoft-IIS
• Apache
• IdeaWebServer
• Apache-Coyote
• nginx
• WebServer 3-9
• lighttpd
• Rapidsite
• Apache-AdvancedExtranetServer
• Zeus
• LiteSpeed
• NOYB
• Sun-Java-System
• ""
• Unauthorized-Use-Prohibited
• Abyss
• Apache Webserver
• Apache (Unix)
• Apache 3 - nowhere
• BEAST
• CP12
• ConcentricHost-NaramSin
• Hanbiro Server Centre(Powered by NetBSD)
• IBM_HTTP_Server
• Kingston Technology WebSite
• Mittwald HTTPD
• Nost Solutions Internet
• SinforSSLWeb
• Sun Java System Application Server 9.1
• Sun Java System Application Server 9.1_02
• Sun-ONE-Web-Server
• WebServerX
• Zope
• 2Dservers.net
• Apache (Petra Internet Framework
• Apache (SuSE
• Apache - Wopsa
• Apache 1.3.29
• Apache 3
• Apache 3 - HOSTLMI
• Apache 3.0
• Apache PHP
• Asroc Intelligent Security Filter 4.1.8
• Blocked
• CanIIS
• ENIAC
• Fireserv
• GEAR 2.0
• IIS
• Internet Society Indonesia
• JSWeb-Apache
• Kerio MailServer 6.0.3
• NAB
• OpenCms
• Oracle-Application-Server-10g
• Pavlov Speed Control
• RaidenHTTPD
• SAMBAR
• SDLWorkFlow Web Server
• Servage.net Cluster
• Ski The Best... Booth Creek Resorts
• Strangecode Apache
• Sun Java System Application Server 9.1_01
• Sun-Java-System-Web-Server
• Unknown
• WEBSERVER
• WWW Server
• WebServer 1.06
• ZazouMiniWebServer v1.2.7
• [Secure NsHosts]
• hix webserver
• mail-bgone
• off
• p0wned
• wwwserver
• zope.server.http (HTTP)