how to protect your web site

If you or your company have created website, you are probably invested enough that you would like to protect it. If you are a library or museum, you may have special considerations.
The two primary methods of protection are technical countermeasures and legal protection. Technical countermeasures include strategies such as digital watermarking and spiders that search the Internet for copies of your pages or graphics. These strategies tend to be cumbersome, expensive, or user-unfriendly. The primary vehicle for legal protection is copyright. This is by far the easiest and most popular form of protection in use today. In implementing a copyright strategy, there are three items that you should consider:

1. Password protect your content with Web Page Password Protect by just adding one line of PHP code to your page source. Script will present user with password entry form, and will not let visitor see your private content without providing a password.
Multiple user accounts support, improved security, automatic logout, and manual logout feature.
Usage:
Save password_protect.php somewhere on your server
Update it with your desired password or login/password pair. Use any plain text editor to accomplish this step. Sample editors: Notepad (Windows) or vi (Unix).
Open script in your browser with "help" parameter to see the line of code to add to every page you would like to be password protected.Example: password_protect.php?help.

2.Remove unnecessary files. As your website changes, old files are ignored. They should be removed. Keep copies offline in case you wish to add them again, but remember to update any scripts. Old files are often indexed by search engines. So even if you do not link to those pages anymore, the search engines lists them for Internet users to find and visit. Automated programs to search for these files can find them to exploit them.
Implement passwords. Any sensitive files, databases or scripts should be protected. Please use passwords that are difficult to guess. Use letters AND numbers, but be careful to keep the number of characters within the programmed limits and remember that passwords are case-sensitive.
Include robots.txt. Create a file to tell search engines not to index files that are restricted to certain users. You can also disallow indexing of images, so people who search for images to use illegal do not steal your images.
Check permissions of uploaded files. Left-click each filename in your web host server, then right-click and select CHMOD to make sure files are set to the proper permissions. Check with your web host if you are unsure. Remember to upload images as binary and most other files as ASCII files. Choosing Auto for automatic selection may be incorrect if certain extensions are not specified.
Protect email addresses. If you ever got a strange email that tested your form or simply sent you an email to yourself, one of those spammer programs found your email address from your website or someone else's. There are scripts to split up your email address, so spammer software programs cannot read them. Another way is to place your email address in an image or simply have an "Email us" link. I haven't done this, but I didn't have any problems until recently. I still want to make my contact information visible to my target audience.