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CSCE 120

Computer Information Systems

Spring 2004

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Tools for Checking Web Pages

Doctor HTML

(Click "Single Page" tab.)

This unofficial service will check a single web page for free or one can pay to have it check an entire web site.

Advantages

  • Tells you if a number of different browsers will accept your page.
  • Checks to see if bowsers think your page is valid instead of checking to see if it satisfies a standard.
  • Also checks spelling.
  • Also checks your links to see if they work

Disadvantages

  • Makes some suggestions that are not relevant to most users
  • Checks to see if bowsers think your page is valid instead of checking to see if it satisfies a standard. (This can be an advantage or disadvantage.)
  • Lots of output. You will need to figure out what output is really important and what can be ignored.

The World Wide Web Consortium (W3C)

This is the organization that sets web standards. They have a new standard 4.1 that is generally beyond what people use.

To get this to work you will need to replace the normal
<html>
<head>

lines by
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

in the beginning of your html document.

Advantages

  • Checks to make sure that your page satisfies the standard you picked.
  • Allows you to add an icon that indicates your page satisfies the standards and will actually check the page when clicked. (Click on the icon below.)

Disadvantages

  • Very strick. Even checks ordering of some tags.
  • Does not allow some useful tags and options allowed by most modern browsers.
  • One error can cause tags to appear to be incorrect even if they are OK.
  • Does not check links or spelling.

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Maintained by brinkje@plu.edu

Valid HTML 3.2!