You'd think that spelling errors would be the easiest to find and correct, but that's usually not the case. Page authors are frequently the last people to notice spelling or grammatical errors simply because they've looked at the text so many times. Familiarity causes them to overlook errors that site visitors will notice immediately.
Visitors are also quick to notice HTML errors because they often cause display problems.
Think about all the work you put into site design and how efficiently a single HTML coding error can ruin it. Spelling and HTML errors make your site look amateurish - if not unreadable. Those editors write the code for you, but they don't always adhere to HTML standards. Quickly check your site for spelling and HTML errors using NetMechanic's HTML Toolbox . It will test your page for free and identify errors that can break your site.