Google Page Speed
Page Speed is an open-source Firefox/Firebug Add-on. Webmasters and web developers can use Page Speed to evaluate the performance of their web pages and to get suggestions on how to improve them.
Page Speed performs several tests on a site’s web server configuration and front-end code. These tests are based on a set of best practices known to enhance web page performance. Webmasters who run Page Speed on their pages get a set of scores for each page, as well as helpful suggestions on how to improve its performance.
Yahoo! YSlow
YSlow analyzes web pages and tells you why they’re slow based on the best practices for high performance web sites. YSlow is a Firefox add-on integrated with the popular Firebug web development tool. This tool has helped improve the performance on over 50 Yahoo! properties by 25-50%. Here is a nice video introduction and usage of YSlow.Httperf
Httperf is a tool for measuring web server performance. It provides a flexible facility for generating various HTTP workloads and for measuring server performance. The focus of httperf is not on implementing one particular benchmark but on providing a robust, high-performance tool that facilitates the construction of both micro- and macro-level benchmarks.It does so much more for it’s simplicity. It can simulate multiple sessions and transactions including replaying ‘live’ traffic from your web access log. Check out this introductory document below on how it can help measure performance.
httperf – A Tool for Measuring Web Server Performance –
Pagetest (IE only)
The facts remain, IE is still very popular and widely used. This tool is only available on IE browsers but nevertheless it is very powerful. Pagetest is an open source tool for measuring and analyzing web page performance right from your web browser. AOL developed Pagetest internally to automate load time measurement of its many websites, and it has evolved into a powerful tool for web developers and software engineers in testing their web pages and getting instant feedback. Check out this great video on how to analyze and optimize your website for performance.Optimizing Web Performance with AOL Pagetest from Dave Artz on Vimeo.
Apache JMeter
Apache JMeter is open source software, a 100% pure Java desktop application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions. Here is a quick video tutorial on using Jmeter.It may be used to test performance both on static and dynamic resources (files, Servlets, Perl scripts, Java Objects, Data Bases and Queries, FTP Servers and more). It can be used to simulate a heavy load on a server, network or object to test its strength or to analyze overall performance under different load types. You can use it to make a graphical analysis of performance or to test your server/script/object behavior under heavy concurrent load.
Selenium
Selenium IDE is an integrated development environment for Selenium tests. It is implemented as a Firefox extension, and allows you to record, edit, and debug tests. Selenium IDE includes the entire Selenium Core, allowing you to easily and quickly record and play back tests in the actual environment that they will run.
WebInject
WebInject is a free tool for automated testing of web applications and web services. It can be used to test individual system components that have HTTP interfaces (JSP, ASP, CGI, PHP, AJAX, Servlets, HTML Forms, XML/SOAP Web Services, REST, etc), and can be used as a test harness to create a suite of [HTTP level] automated functional, acceptance, and regression tests. A test harness allows you to run many test cases and collect/report your results. WebInject offers real-time results display and may also be used for monitoring system response times.
WebInject can be used as a complete test framework that is controlled by the WebInject User Interface (GUI). Optionally, it can be used as a standalone test runner (text/console application) which can be integrated and called from other test frameworks or applications.
Siege
Siege is an http load testing and benchmarking utility. It was designed to let web developers measure their code under duress, to see how it will stand up to load on the internet. Siege supports basic authentication, cookies, HTTP and HTTPS protocols. It lets its user hit a web server with a configurable number of simulated web browsers. Here is a pretty good article on how to use Siege.Http load
http_load runs multiple http fetches in parallel, to test the throughput of a web server. However unlike most such test clients, it runs in a single process, so it doesn’t bog down the client machine. It can be configured to do https fetches as well. Sample usage:% ./http_load -rate 5 -seconds 10 urls 49 fetches, 2 max parallel, 289884 bytes, in 10.0148 seconds 5916 mean bytes/connection 4.89274 fetches/sec, 28945.5 bytes/sec msecs/connect: 28.8932 mean, 44.243 max, 24.488 min msecs/first-response: 63.5362 mean, 81.624 max, 57.803 min HTTP response codes: code 200 -- 49
HTTP Test Tool
HTTP Test Tool is a script based tool for testing and benchmarking web applications, web servers, proxy servers and web browsers. httest can emulate clients and servers even in the same test script. Emulating servers is a unique feature, very usefull for testing proxy servers, web browsers and HTTP clients.ApacheBench
ApacheBench is a command line computer program for measuring the performance of HTTP web servers. It was designed to give an idea of the performance that a given Apache installation can provide. In particular, it shows how many requests per second the server is capable of serving. The ab tool comes bundled with your standard Apache, you can find it in apache install bin directory.OpenSTA
OpenSTA is a distributed software testing architecture designed around CORBA, it was originally developed to be commercial software by CYRANO. The current toolset has the capability of performing scripted HTTP and HTTPS heavy load tests with performance measurements from Win32 platforms. However, the architectural design meansOpenSTA is a distributed software testing architecture designed around CORBA, it was originally developed to be commercial software by CYRANO. The current toolset has the capability of performing scripted HTTP and HTTPS heavy load tests with performance measurements from Win32 platforms. However, the architectural design means it could be capable of much more.
OpenWebLoad
OpenWebLoad is a tool for load testing web applications. It aims to be easy to use and providing near real-time performance measurements of the application under test. This is particulary useful when you are doing optimization as you can see the impact of your changes almost immediately.Pylot
Open source tool by Corey Goldberg for generating concurrent http loads. Define test cases in an XML file – specify requests – url, method, body/payload, etc – and verifications. Verification is by matching content to regular expressions and with HTTP status codes. HTTP and HTTPS (SSL) support. Monitor and execute test suites from GUI (wxPython), and adjust load, number of agents, request intervals, rampup time, test duration. Real-time stats and error reporting are displayed.JCrawler
An open-source stress-testing tool for web apps; includes crawling/exploratory features. User can give JCrawler a set of starting URLs and it will begin crawling from that point onwards, going through any URLs it can find on its way and generating load on the web application. Load parameters (hits/sec) are configurable via central XML file; fires up as many threads as needed to keep load constant; includes self-testing unit tests. Handles http redirects and cookies; platform independent.Curl-Loader
Open-source tool written in ‘C’, simulating application load and behavior of tens of thousand HTTP/HTTPS and FTP/FTPS clients, each with its own source IP-address. In contrast to other tools curl-loader is using real C-written client protocol stacks, namely, HTTP and FTP stacks of libcurl and TLS/SSL of openssl. Activities of each virtual client are logged and collected statistics include information about: resolving, connection establishment, sending of requests, receiving responses, headers and data received/sent, errors from network, TLS/SSL and application (HTTP, FTP) level events and errors.FunkLoad
FunkLoad is a functional and load web tester, written in Python, whose main use cases includes Functional testing of web projects and regression testing as well. It?s also capable of performance testing your app by loading the web application and monitoring your servers which helps to pinpoint bottlenecks, giving a detailed report of performance measurement. FunkLoad also expose bugs that do not surface in cursory testing, like volume testing or longevity testing.FWPTT
fwptt it’s a Web application tester program for load testing web applications. It can record normal and ajax requests. I tested it on asp.net applications, but it should work with jsp, php or other.
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