Checking HTML Syntax
WEBLINT,
http://darkwing.uoregon.edu/~jqj/cgi-bin/weblint.cgi
a form for picking the "lint" off your HTML documents. It checks your document or HTML code for conformance to the HTML specifications
Doctor HTML,
http://imagiware.com/RxHTML.cgi
A site offering a variety of tests for your web pages. Check syntax on one page for free, or pay per page to check a whole site.
Web Site Garage,
http://www.websitegarage.com/
Another one-stop shop, checking syntax, browser compatibility, meta tags, load times, dead links, spelling, and more.
W3C HTML 4 Validation Service,
http://validator.w3.org
Validate against the official SGML spec
Bobby,
http://www.cast.org/bobby/
analyzes HTML documents for accessibility to people with disabilities, browser compatibility, and expected download time
GIF Wizard,
http://www.gifwizard.com
check links, reduce size of images, etc. Also:
GIF Optimizer,
http://www.gifoptimizer.com/
GIF Cruncher,
http://www.gifcruncher.com/
Exercise: submit your home page to WEBLINT or Doctor HTML, and fix any bugs found.
Next: Checking Links