What are they?

Filters are programs that block websites based on certain key words or types of content. The NSW Department of Education and Training filters Internet access on all school computers to prevent students from looking at inappropriate material on websites, such as pornography. Filters can be used on home computers as well.

How do they work?

Basically, filters act like a sieve and only let websites through the Internet that aren't blocked.

Certain websites and web content are blocked because they contain information that is deemed inappropriate and cannot get through the filter.

Why are filters useful?

Filters are great at helping your child avoid inappropriate or dangerous websites. Most are set up to block websites that contain "adults-only" content.

What do you need to keep in mind about filters?

No one Internet filter is foolproof. So it's good to keep in mind that as websites become more advanced, they may find a way to get through your filter. Always remember a filter shouldn't replace basic parenting, the best way to avoid your child looking at inappropriate material is if you are involved in teaching your child to be safe online. On another note, a lot of filters can become annoying – they end up blocking a lot of sites that aren't inappropriate for your child to see, which means you will need to be there to "unblock" any of these sites.

Want to know more about filters?

You can download a free filter at:

• www.netalert.gov.au

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