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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 →

Advanced Link Checker checker with extension and keyword filtering

The SGML tools are: nsgmls - SGML analysis and validator spam - markup stream editor sgmlnorm - a simple normalizer sx - SGML to XML convertor spent - entity manager

Site Valet 2.0 is the new release of Site Valet Enterprise Edition, our comprehensive QA system for Web-based technologies. Features a new GUI Client, improved Accessibility analysis with full audit trail, and comprehensive XML support. An Online Demonstration is available.

The page analyzer analyzes your web page performance by emulating how a web browser would load your page and all resources referenced in it. The page and its referenced resources are loaded and important performance metrics are measured and displayed in a load-bar diagram along with other per-resource attributes such as URL, size, compression ratio and HTTP status code. Each bar has parts of different color corresponding to a performance metric:

Minimal: original algorithm but keep linefeeds if single - Conservative: original algorithm - Agressive: remove more linefeed than the original algorithm but can be regressive

Edit html, css, and javascript snippets in separate boxes with a live preview. Quickly switch between various javascript libraries and library versions via a dropdown.

Sitelogr is a free service that provides a vast quantity of valuable information to webmasters about every website on the internet. This data is gathered from various sources in real-time. A unique feature we offer is being able to give an estimate of how much a certain website is worth. We use an advanced algorithm to calculate this data. Of course it will never be perfectly accurate, but at least you get a general idea.

Do you need to remove sensitive information from Google? Found a dead link in our search results? Want to help us improve our SafeSearch filter? Select an option below to proceed with your request.

Tidy Online is a Web-enabled version of Tidy, a utility originally by Dave Raggett and now developed at SourceForge, to clean up and fix errors in HTML pages. This offers you the opportunity to upload your HTML, and will print out a tidied version.

Dirty Markup is a web-based HTML Tidy interface. You can use it to harness the power of Tidy without ever leaving your web browser. Nice (jquery) interface

Page Valet 4 offers the most comprehensive and accurate markup validation service anywhere on the net. It merges our previous native XML Validator into the Page Valet service.