Firebug first off, is a Firefox plugin that provides a wealth of information about any website or page you are currently examining. This tool will provide information about HTML, CSS, Scripts, DOM, Network, Images, Flash etc.

While loading a page, Firebug will give you some valuable network activity item by item and will reveal errors within the compiled code or the various scripts you’ve installed.

YSlow is not another application, but an additional tool for Firebug you can install for even more information and valuable suggestions. YSlow is a Yahoo development tool that will letter grade your site’s HTTP requests, DNS lookups, Javascript, CSS and so much more.

Not all companies are equal, not all services are the same and before anybody go ahead with a hosting provider, and one should do as much research as possible before hand. What are the best Linux Hosting Plans, why should you use a VPS (virtual private server), what is dedicated hosting, who offers the best email hosting?

Fortunately WebHostingRating.com has done its homework and ranks and rates many hosting services by type, value and reliability. This invaluable resource should be your first stop when you plan your next web hosting deployment.

CMS Web Hosting is another specialized field that merits attention. Are you going to run your next web deployment with such CMS packages as Wordpress, Joomla and Drupal? If so you get to compare pricing, server space and traffic limits. This invaluable resource beats running through the advertisements of your trade and computer magazines. Seriously, would you pick your next hosting provider based on their word? Fact is, you should always seek the opinion of a third party.

WebHostingRating.com also maintains a number of excellent articles written over a year and half that offer some very good background information on the good and bad of cheap web hosting, security issues, shared hosting and many other topics.

And now the best part: if you’re a provider and you believe your services are on par with the websites top rankings, you can submit a full profile for review.

• HTML 2 Txt – html2txt: online service to convert web pages to plain text
• W3C HTML validator – This is the W3C Markup Validation Service, a free service that checks Web documents in formats like HTML and XHTML for conformance to W3C Recommendations and other standards.
• Jigsaw – Enter the URI of a document (HTML with CSS or CSS only) you would like validated.
• Backwards Compatibility Checker – Web Page Backward Compatibility Viewer
• Header Checker – Enter a URI for a webpage and we’ll tell you what the headers for that page are. This is useful to check the status code for a webpage for SEO purposes.
• Walidator – Validate your XHTML, HTML, CSS, RSS, RDF…
• WebXCACT – WebXACT is a free online service that lets you test single pages of web content for quality, accessibility, and privacy issues.
• Favicon validator – Favicon Validator is a free online service that can be used to validate favicon files, link tags and related items on web pages. If you’d like to double check the favicon on your web page or if you’re having trouble viewing it, enter your web page address and click “Check”
• Selenium – Selenium is a test tool for web applications. Selenium tests run directly in a browser, just as real users do. And they run in Internet Explorer, Mozilla and Firefox on Windows, Linux, and Macintosh. No other test tool covers such a wide array of platforms.
• Vischeck – Vischeck URL is still under development. We know that it will fail on many websites. For example, it won’t work with sites that do an immediate redirect, use Macromedia Flash, or use certain javascript operations. Frames may also cause problems, but you can run each frame separately to get around this.
• Color Filter – Use the colorblind colorlab to select safe colors earlier in the design process.