Search engine can read HTML and XHTML. They have to crawler the HTML code of your web site to find the relevant content. If your HTML code contains errors, search engines might not be able to find everything on the page. The most common HTML validator is the W3 HTML Validator, just enter the address of a web page.
What is HTML ?
HTML mean Hyper Text Markup Language
An HTML is a text file containing small markup tags
Markup tags tell the web browser how to display the page
The HTML file must have an htm or html file extension
HTML file can also created by a simple text editor
With Windows, start Notepad.
With Mac, start SimpleText.
In OSX start TextEdit and change the following preferences: Open the “Format” menu and select “Plain text” instead of “Rich text”. Then open the “Preferences” window under the “Text Edit” menu and select “Ignore rich text commands in HTML files”. Your HTML code will probably not work if you do not change the preferences above!
Type in the following text:
<html> <head> <title>Title of page</title> </head> <body> Your home page.
<b>This text is bold</b> </body> </html>
Save the file as ” mypage.htm “.
Start your Internet browser. Select “Open” (or “Open Page”) in the File menu of your browser. A dialog box will appear. Select “Browse” (or “Choose File”) and locate the HTML file you just created – “mypage.htm” – select it and click “Open”. Now you should see an address in the dialog box, for example “C:\MyDocuments\mypage.htm”. Click OK, and the browser will display the page.
The first tag in your HTML document is <html>. This tag tells your browser that this is the start of an HTML document. The last tag in your document is </html>. This tag tells your browser that this is the end of the HTML document.
The text between the <head> tag and the </head> tag is header information. Header information is not displayed in the browser window.
The text between the <title> tags is the title of your document. The title is displayed in your browser’s caption.
The text between the <body> tags is the text that will be displayed in your browser.
The text between the <b> and </b> tags will be displayed in a bold font.
HTM or HTML Extension?
If you save an HTML file, you can use either the .htm or the .html extension. We have used .htm in our examples. It might be a bad habit inherited from the past when some of the commonly used software only allowed three letter extensions.
With newer software we think it will be perfectly safe to use .html.
Note on HTML Editors:
You can edit HTML files using a WYSIWYG (what you see is what you get) editor like FrontPage or Dreamweaver, instead of writing your markup tags in a plain text file.
You can be a web developer, but i recommend that you use a plain text editor to learn your first HTML, make sure to save it with the exact name.