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1. Site Loading Speed Test2. Visitor Breakdown Test3. Backlink Checker4. Meta Tags Analyzer5. Most Common Keywords Test6. h and h2 Tag Test7. URL Canonicalization Test8. Learn more about canonicalization issues9. Nested Tables Test10. Image Expires Tag Test11. Favicon Test and Validator12. Page Objects Count Test13. Page Objects Listing Test14. Directory Browsing Test15. Server Signature Test16. Libwww-perl Access Test

Embed tools Valid XHTML YouTube embed code generator Valid XHTML MySpace embed code generator Valid XHTML Vimeo embed code generator Numbers Number to words spelling tool Fibonacci calculator Roman to decimal converter Number base convertor Strings String similarity test tool Online count lines tool Encryption Online hash calculator Online encrypt tool Online decrypt tool Online XTEA encrypt tool Online XTEA decrypt tool Online XXTEA encrypt tool Online XXTEA decrypt tool Online ASCII85 Encoder Online ASCII85 Decoder

Landing page analyzer Answer a series of questions to know how effective is your landing page on industry's best practices. Run tool → Test significance calculator For given number of trials and conversion rate, want to know if the results are statistically significant? Run tool → A/B Ideafox Get ideas for A/B, split and multivariate tests by reading case studies sorted by industry and problem type. Run tool → Test duration calculator Calculate the number of days you will need to run your A/B split test in order to get reliable results. Run tool →

After starting the test-suite it will automatically run a large number of small tests which will determine if your browser is compatible with a large number of CSS selectors. If it is not compatible with a particular selector it is marked as such. You can click on each CSS selector to see the results, including a small example and explanation for each of tests. Because it is technically not possible to simulate certain user interactions the test is limited to CSS selectors that are not dependent on user interactions. So this test-suite does not include tests for the following selectors: :hover, :active, :focus and :selection.

With the test images on these pages, you can easily adjust the settings of your monitor to get the best possible picture quality. Additionally, there are a number of test images that can help you to judge the image quality of a monitor. You can check the images on this webpage or put them on a usb stick and try them in the computer store like I did when I created these test patterns. These test images are much more revealing regarding monitor shortcomings than ordinary photographs.

Online free Flat File Data Extractor tool can be used for reading different flat file structures and displaying them in different formats. The main areas of use are; extracting particular fields or records from a flat file; converting data from one format to another, e.g. from fixed length to CSV, XML, Excel; verifying a flat file structure; as a testing tool for flat file development; and displaying flat file content in human readable form. There are several reasons for the end user to export data from an application into an Excel compatible format (mostly for further analysis/usage or data).

WebPagetest is a tool that was orginially developed by AOL for use internally and was open-sourced in 2008. The online version at www.webpagetest.org is an industry collaboration with various companies providing the testing infrastructure for testing your site from across the globe.

Very good hearing test - advice: Take a screemshot of your results, date the file, so you can compare with future tests. Warning ! Do not start with a panel in the top third of the chart: you might hurt or even damage your ears. This hearing test measures the relative sensitivity of your ears at different frequencies. It produces equal loudness contours or hearing curves - the frequency response of your own ears. 

The primary goal of TestSwarm is to take the complicated, and time-consuming, process of running JavaScript test suites in multiple browsers and to grossly simplify it. It achieves this goal by providing all the tools necessary for creating a continuous integration workflow for your JavaScript project. If you are a casual user of some open source JavaScript libraries and wish to help them generate high-quality test results for their project then TestSwarm is the perfect way to get involved. Right now TestSwarm.com is open for alpha testing.

CSSFly is a web 2.0 tool for easy editing websites direct and in real-time in your browser. Simply edit the (X)HTML-code and the external Style-Sheet files : what you code is what you get! This tool is designed for developers. Use it for developing, testing or checking your web-project or take a look behind the scenerys of your favourite websites.

CSSFly is a web 2.0 tool for easy editing websites direct and in real-time in your browser. Simply edit the (X)HTML-code and the external Style-Sheet files : what you code is what you get! This tool is designed for developers. Use it for developing, testing or checking your web-project or take a look behind the scenerys of your favourite websites.

A fun and easy way to test what people remember on your website. Clue is a tool that creates super-fast memory tests based on screenshots of webpages, then lets you see the results. It's perfect for capturing that all important first-impression of a website. 

+Compatibility Tools +Identification Tools +Update Tools +Diagnostic Tools +Monitoring Tools Online: The Intel® System Identification Utility identifies various Intel products on your computer. It provides you with technical information, general system information, and links to those products. Software to download for Windows: The purpose of the Intel® Processor Diagnostic Tool is to verify the functionality of an Intel® microprocessor. The diagnostic checks for brand identification, verifies the processor operating frequency, tests specific processor features and performs a stress test on the processor.

How this test works: Your browser will be instructed to reach a series of URLs. The combination of successes and failures tells a story about how ready you are for when publishers start offering their web sites on IPv6. Q: What is World IPv6 Day? This is a trial period where a number of major web sites will provide their content on both IPv4 and IPv6. This is being led by the Internet Society (ISOC). more information is posted on their World IPv6 Day page. World IPv6 day, scheduled for 8 June 2011, is a global-scale test flight of IPv6 sponsored by the Internet Society. On World IPv6 Day, major web companies and other industry players will come together to enable IPv6 on their main websites for 24 hours. The goal is to motivate organizations across the industry -- Internet service providers, hardware makers, operating system vendors and web companies -- to prepare their services for IPv6 to ensure a successful transition as IPv4 address space runs out. Click here to see the start time in your local area. Why is World IPv6 Day necessary? The address space used by the current version of the Internet protocol, IPv4, is expected to run out in 2011. Without action, we risk increased costs and limited functionality online for Internet users everywhere. The only long-term solution to this problem is adoption of IPv6, which provides over 4 billion times more space. IPv6 is used extensively in many large networks, but it has never been enabled at a global scale. World IPv6 Day will help industry players work together to support the new protocol on an accelerated timeline. With major web companies committing to enable IPv6 on their main websites, there are strong incentives for other industry players to ensure their systems are prepared for the transition.

# CrossBrowserTesting.com allows website designers to test the cross browser compatibility of their website across different browsers and operating systems. # Sometimes you need more than a picture. Test your AJAX and Javascript as well as the layout.

Automated cross browser web application testing service.

"Web Security Tool Market. Cutting-edge, web security tools at your fingertips"

"Site scan Run a quick code scan on any URL to check for out-of-date libraries, layout issues, and accessibility"

At 100,000 characters, FF3 threw "A script is running slow, blah blah" messages.  IE7 just crashed.  Safari 4 hung in there till 1,000,000 but then it gave up.  It looks like Apple's claims about Safari 4's speed have some truth.  I didn't test any of the past generation of browsers, I may go back and add them later.

"Encrypted Websites Protect Our Privacy and are Significantly Faster Compare load times of the unsecure HTTP and encrypted HTTPS versions of this page. Each test loads 360 unique, non-cached images (0.62 MB total). For fastest results, run each test 2-3 times in a private/incognito browsing session."

142/160 for Chrome 5.0.371.0 (Official Build 43900) dev / Mac10.5.8

The HTML5 test score is only an indication of how well your browser supports the upcoming HTML5 standard and related specifications.