WhatWeb fingerprints Web servers and Web applications

WhatWeb fingerprints Web servers and Web applications. It can identify content management systems (CMS), Web application frameworks, default pages for Web servers, blogs, JavaScript libraries, and more. Each time you visit a Web site in your browser, the Web server leaks many hints about the software delivering the Web page. WhatWeb recognizes these hints and reports what it finds. WhatWeb has over 70 plugins. Plugins can identify systems with obvious signs removed by looking for subtle clues. Plugins are flexible and can return any datatype. For example, plugins can return version numbers, email addresses, account IDs, and more.

• Licenses : GPLv2
• Operating Systems : Linux
• Implementation : Ruby

aria2 : A utility for downloading files

aria2 is a utility for downloading files. The supported protocols are HTTP(S), FTP, BitTorrent, and Metalink. It has a powerful segmented downloading ability, downloading a file from multiple sources and multiple protocols and utilizing your download bandwidth to the maximum. It supports downloading a file from HTTP(S)/FTP and BitTorrent at the same time, while the data downloaded from HTTP(S)/FTP is uploaded to the BitTorrent swarm. Using Metalink's chunk checksums, aria2 automatically validates chunks of data while downloading a file like BitTorrent.

• Licenses : GPL
• Operating Systems : POSIX, Linux, Mac OS X, Windows, Cygwin, BSD, FreeBSD
• Implementation : C++

HAproxy : A high-performance and highly-robust TCP and HTTP load balancer

HAproxy is a high-performance and highly-robust TCP and HTTP load balancer which provides cookie-based persistence, content-based switching, advanced traffic regulation with surge protection, automatic failover, run-time regex-based header control, Web-based reporting, advanced logging to help trouble-shooting buggy applications and/or networks, and a few other features. Its own event-driven state machine achieves 20,000 hits per second and surpasses GigaEthernet on modern hardware, even with tens of thousands of simultaneous connections.

• Licenses : GPL
• Operating Systems : POSIX, Linux, BSD, OpenBSD, Solaris
• Implementation : C

Ziproxy : A high-performance forwarding (non-caching) HTTP proxy that gzips text and HTML files, and reduces the size of images

Ziproxy is a high-performance forwarding (non-caching) HTTP proxy that gzips text and HTML files, and reduces the size of images by converting them to lower quality JPEGs or JPEG 2000. It is intended to increase the speed for low-speed Internet connections (mobile, dial-up, other). It's suitable for both home and professional usage. Ziproxy is fully configurable and also features transparent proxy mode, HTML/JS/CSS optimization, operation in daemon mode, a detailed access log with compression statistics, basic authentication, and more.

Licenses : GPLv2, GPL

Operating Systems : Linux, BSD, Cygwin, Mac OS X, FreeBSD

Implementation : C

Open Validator verifies many aspects of conformance of Web pages

Open Validator verifies many aspects of conformance of Web pages to International Standard ISO/IEC 23026-2006(E) IEEE Std. 2001 - 2002, "Software Engineering - Recommended Practice for the Internet - Web Site Engineering, Web Site Management, and Web Site Life Cycle".

• Licenses : GPL
• Operating Systems : POSIX, Linux, Mac OS X, Windows
• Implementation : C++

Ziproxy : A high-performance forwarding (non-caching) HTTP proxy that gzips text and HTML files, and reduces the size of images

Ziproxy is a high-performance forwarding (non-caching) HTTP proxy that gzips text and HTML files, and reduces the size of images by converting them to lower quality JPEGs or JPEG 2000. It is intended to increase the speed for low-speed Internet connections (mobile, dial-up, other). It's suitable for both home and professional usage. Ziproxy is fully configurable and also features transparent proxy mode, HTML/JS/CSS optimization, operation in daemon mode, a detailed access log with compression statistics, basic authentication, and more.

• Licenses : GPLv2, GPL
• Operating Systems : Linux, BSD, Cygwin, Mac OS X, FreeBSD
• Implementation : C

HAproxy : A high-performance and highly-robust TCP and HTTP load balancer

HAproxy is a high-performance and highly-robust TCP and HTTP load balancer which provides cookie-based persistence, content-based switching, advanced traffic regulation with surge protection, automatic failover, run-time regex-based header control, Web-based reporting, advanced logging to help trouble-shooting buggy applications and/or networks, and a few other features. Its own event-driven state machine achieves 20,000 hits per second and surpasses GigaEthernet on modern hardware, even with tens of thousands of simultaneous connections.

• Licenses : GPL
• Operating Systems : POSIX, Linux, BSD, OpenBSD, Solaris
• Implementation : C

libopkele : A C++ implementation of an OpenID decentralized identity system

libopkele is a C++ implementation of an OpenID decentralized identity system. It provides OpenID protocol handling, leaving authentication and user interaction to the implementor.

• Licenses : MIT/X
• Operating Systems : POSIX, Linux
• Implementation : C++

SafeSquid : A content filtering proxy server

SafeSquid is a content filtering proxy server. It supports 'profiled' Internet access, a browser based interface, very fast throughput, DNS caching, content caching, pre-fetching, bandwidth control, virus scanning, ICP, CARP, and ICAP clients, source, target, and time-based granular firewall style rules to allow or deny content like music, videos, Flash and Java applets, messengers, chats, cookies, ActiveX, scripts, etc., remote authentication, real-time text and image analysis for blocking pornography, and an URL filter.

• Operating Systems : POSIX Linux

ModSecurity : An intrusion detection and prevention engine for Web applications (sometimes called a Web application firewall)

ModSecurity is an intrusion detection and prevention engine for Web applications (sometimes called a Web application firewall). Operating embedded or as part of an Apache reverse proxy, it increases Web application security, protecting Web applications from known and unknown attacks. It is flexible and easy to configure. It monitors HTTP traffic (including POST payloads), detects or prevents attacks, enhances logging, performs anti-evasion, and allows administrators to create custom rules to suit their specific needs. It excels in HTTP traffic monitoring and just-in-time vulnerability patching.

• Licenses : GPLv2
• Operating Systems : OS Independent
• Implementation : C

HAproxy : A high-performance and highly-robust TCP and HTTP load balancer

HAproxy is a high-performance and highly-robust TCP and HTTP load balancer which provides cookie-based persistence, content-based switching, advanced traffic regulation with surge protection, automatic failover, run-time regex-based header control, Web-based reporting, advanced logging to help trouble-shooting buggy applications and/or networks, and a few other features. Its own event-driven state machine achieves 20,000 hits per second and surpasses GigaEthernet on modern hardware, even with tens of thousands of simultaneous connections.

• Licenses : GPL
• Operating Systems : POSIX, Linux, BSD, OpenBSD, Solaris
• Implementation : C

aria2 : A utility for downloading files. The supported protocols are HTTP(S), FTP, BitTorrent, and Metalink

aria2 is a utility for downloading files. The supported protocols are HTTP(S), FTP, BitTorrent, and Metalink. It has a powerful segmented downloading ability, downloading a file from multiple sources and multiple protocols and utilizing your download bandwidth to the maximum. It supports downloading a file from HTTP(S)/FTP and BitTorrent at the same time, while the data downloaded from HTTP(S)/FTP is uploaded to the BitTorrent swarm. Using Metalink's chunk checksums, aria2 automatically validates chunks of data while downloading a file like BitTorrent.

• Licenses : GPL
• Operating Systems : POSIX, Linux, Mac OS X, Windows, Cygwin, BSD, FreeBSD
• Implementation : C++

DeleGate : A multi-purpose application level gateway or proxy server

DeleGate is a multi-purpose application level gateway or proxy server that mediates communication of various protocols, applying cache and conversion for mediated data, controlling access from clients, and routing toward servers. It translates protocols between clients and servers, converting between IPv4 and IPv6, applying SSL (TLS) to arbitrary protocols, merging several servers into a single server view with aliasing and filtering. It can be used as a simple origin server for some protocols (HTTP, FTP, and NNTP).

• Licenses : Free for non-commercial use
• Operating Systems : Unix, Mac OS X, Windows, Mobile
• Implementation : C

ht://Check : A link checker derived from ht://Dig

ht://Check is a link checker derived from ht://Dig. It can retrieve information through HTTP/1.1 and store it in a MySQL database so that after a "crawl", ht://Check can return broken links, anchors not found, content-types, and HTTP status codes summaries. ht://Check also performs accessibility checks in accordance with the principles of the University of Toronto's Open Accessibility Checks (OAC) project, allowing users to discover site-wide barriers like images without proper alternatives, missing titles, etc. A PHP interface lets the user query and view the results directly via the Web.

• Licenses : GPL
• Operating Systems : POSIX
• Implementation : C++, PHP

Ziproxy : A high-performance forwarding (non-caching) HTTP proxy that gzips text and HTML files

Ziproxy is a high-performance forwarding (non-caching) HTTP proxy that gzips text and HTML files, and reduces the size of images by converting them to lower quality JPEGs or JPEG 2000. It is intended to increase the speed for low-speed Internet connections (mobile, dial-up, other). It's suitable for both home and professional usage. Ziproxy is fully configurable and also features transparent proxy mode, HTML/JS/CSS optimization, operation in daemon mode, a detailed access log with compression statistics, basic authentication, and more.

• Licenses : GPLv2, GPL
• Operating Systems : Linux, BSD, Cygwin, Mac OS X, FreeBSD
• Implementation : C

Metazip : An Apache 2.x module that allows you to serve dynamically-constructed, uncompressed zip files

Metazip is an Apache 2.x module that allows you to serve dynamically-constructed, uncompressed zip files. Thus, your users can choose to download individual files or entire collections, but you don’t have to reserve disk space for both.

• Licenses : Apache 2.0
• Operating Systems : Linux, Mac OS X
• Implementation : C

Xapian : A search engine library, scalable to collections containing hundreds of millions of documents

Xapian is a search engine library, scalable to collections containing hundreds of millions of documents. It's written in C++ with bindings for Perl, Python, PHP, Java, Tcl, C#, and Ruby. It is a highly adaptable toolkit that allows developers to easily add advanced indexing and search facilities to their own applications. It supports the Probabilistic Information Retrieval model and also a rich set of boolean query operators. Omega is a Web search application built upon the Xapian library. It can index a Web server's document tree (including HTML, PDF, OpenOffice, MS Word/Excel/Powerpoint/Works, WordPerfect, RTF, PS, etc.), or data exported from arbitrary sources (e.g. SQL databases).

• Licenses : GPL
• Operating Systems : Windows, Unix, Mac OS X, OS/2
• Implementation : C++, Perl, PHP, Python, Java, Tcl, Ruby, C#

Web Man controls the large-scale aspects of your Website

Web Man controls the large-scale aspects of your Website. You can install navigation bars, check links, assign a site-wide DOCTYPE and keywords, apply CSS stylesheets, and do other Web site operations. It is a partial work-alike for Microsoft FrontPage, but is not a page editor. Its central data structure is a hierarchical site map in plain HTML. A converter is provided for moving your FrontPage projects over.

• Licenses : GPL
• Operating Systems : Linux
• Implementation : HTML, AJAX, Synchronous JavaScript (SJAX)

RightWebPage verifies many aspects of conformance of Web pages to International Standard ISO/IEC 23026-2006(E) IEEE Std. 2001 - 2002

RightWebPage verifies many aspects of conformance of Web pages to International Standard ISO/IEC 23026-2006(E) IEEE Std. 2001 - 2002, "Software Engineering - Recommended Practice for the Internet - Web Site Engineering, Web Site Management, and Web Site Life Cycle".

• Licenses : GPL
• Operating Systems : POSIX, Linux, Mac OS X, Windows
• Implementation : C++

BalanceNG : A modern software IP load balancing solution

BalanceNG is a modern software IP load balancing solution. It is small, fast, and easy to use and setup. It offers session persistence, different distribution methods (Round Robin, Random, Weighted Random, Least Session, Least Bandwidth, Hash, Agent, and Randomized Agent) and a customizable UDP health check agent in source code. It supports VRRP to set up high availability configurations on multiple nodes. It supports SNMP, integrating the BALANCENG-MIB with Net-SNMPD. It implements a very fast in-memory IP-to-location database, allowing powerful location-based server load-balancing.

• Operating Systems : Linux, Solaris
• Implementation : C