The Internet hosts billions of web pages but a large chunk of this material may be inappropriate for your young children. Therefore, let’s explore a couple of easy ways that can possibly help parents prevent kids from viewing the dark side of the world wide web.
You don’t have be a tech-savvy person to implement any of the following stuff on your home computer(s) and all the software tools / services discussed here are available for free via the Internet.
Block Adult Sites Automatically
Since you don’t want kids to accidentally see any of sites that contain adult content, an easy option for blocking such sites is OpenDNS.
You don’t have to download or install any software – just go to opendns.com/start in any Internet browser, choose the "Computer" option (let’s keep it simple) and follow the instructions on the screen. Once your computer is configured with OpenDNS, go to Dashboard -> Settings and set the Filtering level to either Moderate or High.
Now whenever your kid mistakenly types a URL of some adult site in the browser (e.g. whitehouse.com instead of whitehouse.gov) or clicks a link that may be pointing to an inappropriate site, the OpenDNS filters will match the address of that site against their own database of adults sites and if there’s a match, the underlying web page won’t be displayed on the child’s computer.
Prevent clicks on Malicious Sites
When you perform a search on Google or other search engines, there is a probability that some of the links appearing on the search results page could be pointing to sites that host malicious or harmful content.
To make sure that your children aren’t clicking these links, what you need is Web of Trust – it’s a simple filter that analyzes web page links in the background and adds colored icons next to them so that you child knows whether visiting the underlying site is safe or not.

Web of Trust is available for both Internet Explorer & Firefox. It can scan links appearing on almost every major search engine and even web email services. You can also use the WOT online service to find the reputation rating of any website as in this example.
Block Selected Websites (like IMs or Social sites)
The filtering option in OpenDNS is great for blocking an entire category of websites on your computer but if you are looking to block only selected sites (e.g. Orkut.com or MySpace.com) because your kids are too young to waste time on these sites, here’s a tip.

Run the Hostsman software (it’s a freeware for Windows) and press Ctrl+O to open the hosts file editor. Click the "Add" icon and type the URLs of all the websites that you want to block on the child’s computer. Hit Save and close the hostsman application.
None of the blocked sites will ever open in any of the browsers installed on your child’s computer unless someone manually deletes the record from the hosts file.
Turn Safe Search On forever
Google, Bing, Yahoo and most other search engines allow you to search the web (and images) in "Safe Search" mode meaning you are less likely to encounter images or web pages in search results that may not be appropriate for children.
But the only problem with this approach is that it uses cookies so if you clear the browser cache, the "safe search" preference will be lost as well.
Luckily, you can force the "strict filtering" option in your browser even if the parent or the kid forgot to turn that option on himself.
The trick is that you open the Google search URL wherever it appears in the browser database and append "safe=active" before the "q" parameter.
For instance, you can type about:config in Firefox and change the keyword.url value to http://www.google.com/search?safe=active&q= – now any searches performed from the address bar will always show "safe" content.
Track Kids Activity on the Computer
While I don’t suggest using a keylogger program to monitor each and every word that your kid is typing, you may want to explore programs like Rescue Time or Slife as they will give you a good overview of how your kids are spending time at the computer.
You get to know what sites are they visiting, how much time are they spending with IM programs, what software applications are they running more frequently and how much time do they spend on individual sites.
Related: Keep a record of all things you do on the computer
Find this article at: http://www.labnol.org/internet/how-parents-can-protect-kids-from-adult-content/9267/

Reader Comments
Greatest article for the benevolence on parents who want to develop the character and personality of their children. But their children are captured by bad sites of internet when parents are out of home .
This article will surely helpful for parents to protect their children from adopting western culture ( Sex and Violence ) which is coming in India through Internet .
Also USA and other developed countries’ parents’ main problem is same like Indian parents .How to Protect Their Kids from Inappropriate Content on the Internet and you have given solution with very simple way . Thanks
According to my opinion , Child age is the age for development of personality through adopting the rules of celibacy ( Contentment and control) .After automatical blocking inappropriate contents , we can utilize internet effective way for our kids .
Written by Vinod Kumar on 07.14.09
Just FYI, Whitehouse.com is no longer a bad site. It’s a loan remodification site.
Written by Scott on 07.14.09
You did not mentioned about browsers specifically made for kids like kido’z
Written by aboutonlinetips on 07.14.09
Please kindly explain in detail the part called: “Turn Safe Search On forever”. I got totally lost in the part: “The trick is that you open the Google search URL wherever it appears in the browser database and append “safe=active” before the “q” parameter”/
Thanks
Written by Frank on 07.14.09
Amazing tip Amit. I was browsing around for purchasing personal firewalls but this post was just in time. Let me try the Open DNS option.
Tweeted…
~Ajith
Written by Ajith Edassery on 07.15.09
Thanks for the easily usable advice on this. I’ve been meaning to protect my kids, but haven’t taken the time to just do it. Now I will.
Written by Pete Steege on 07.15.09
Interesting.
Also, Bitdefender total security comes with parental control.
Written by Fun By Earn on 07.15.09
These are good tips, but the bottom line here is you need to KNOW what your kids are doing. Everything else is just an assumption… and you know what they say about assuming… ;)
There is no reason NOT to KNOW.
Check us out: link
Written by KenS on 07.15.09
My 5yo son uses kidzui standalone version( not mozilla plugin)
KidZui helps kids to learn, play, search and discover over 2 million games, websites, videos and photos on their own. KidZui has the largest number of games, websites, videos and photos reviewed by parents and teachers anywhere.
Written by Yogesh Malik on 07.15.09
Amit – I think it’s a bad idea to expose those site names on the HostsMan Editor.
Written by DemoGeek on 07.16.09
Hi Amit,
You have mentioned some of the great tips and tricks for protecting the children from adult website. But on the other hand teens (Engineering college students)are find out new always to beak the security and access malicious websites. Anyhow, the government must interfere in this matters and block certain websites, which are really a threat to Indians.
Written by Ramesh on 07.17.09
this is really good and must be applied for sure. But i think Key loggers are also really important. A combination of this with key loggers is better.
Written by Waqas Lone on 07.18.09