SEO Bulletin

If you want to validate a XML file here are a few tools:

XML Syntax Checker

XML well-formedness checker and validator

XML Validation Form

If you’re on an Apache Server, with Mod_rewrite installed, you can have the server parse PHP code in .html files by adding this code to your .htaccess file:

AddType application/x-httpd-php .php .htm .html

You can prevent “Image Hotlinking” with .htaccess if you’re on an Apache Server with Mod_rewrite installed. Here are a few tutorials:
Prevent Hotlinking With htaccess
Smarter Image Hotlinking Prevention
How can I prevent hotlinking?
Preventing hot linking of images
Kill Hotlinks
Apache Rewrite Module

Here is a list of the Server Response Codes and what they mean.
HTTP/1.1: Status Code Definitions

If you’re on an Apache Server, with Mod_rewrite installed, you can create custom error messages for server errors.

Action Choices: [See Apache Manual]
Display Text
Redirect to External URL
Redirect to Local URL

Example lines of code for .htaccess file:
ErrorDocument 403 “Goodbye.
ErrorDocument 404 http://www.otherdomain.com/
ErrorDocument 404 /custom404.htm

Add this line of code in your .htaccess file to prevent parent directories from being viewed.
Options -Indexes

If you would like to test your internet connection speed here is a link to McAfee’s Internet Connection Speedometer.

If you want to change your default directory page from “index” to something else, and you’re on an Apache Server, with Mod_rewrite installed, you can add this code to your .htaccess file:

DirectoryIndex otherpage.html

You can also set it up so that if the default page isn’t found that another takes its place:

DirectoryIndex otherpage.html differentpage.html

Of course, use […]

Urchin website Tracking
Stats Counter
AWStats
Webalizer

What is a cronjob, and how do I use it?

Link Checker
Broken Link checker - Bad Link & Image Checker
Xenu’s Link Sleuth
Link Checker

URL Redirect Server Response tool
HTTP Header Viewer
Server Header Checker
HTTP header viewer - show http header

A Script that will email you when GoogleBot crawls
Bots Tracking

Deny users by IP
Block An IP Address

Remove Content from Google’s Index
Automatic URL Removal System