itssafe4.me offers a DNS-based filtering service that filters hundreds of thousands of adult, virus and malware sites. To use the service, only a few changes are needed, either in the network's router or in the computer the service is used on. The service is fairly priced and there is no software to install, so it won't slow your computer down or interfere with any programs whatsoever.
Installation Service Available
For users in the Palestine, Texas area, installation help is available with the addition of a one-time setup fee.