It is much better and easier to do it in the router, and recommended by OpenDNS and security experts everywhere. That changes DNS for your whole network including all devices wired and wireless. That is the standard advice in every article and I am surprised it was not even mentioned. It does the community a disservice.
OenDNS is preferable to Google as it provides browsing safety as well. It provides a router configuration wizard at
OpenDNS Home Plan hereBy default, this changes the DNS but you must set up an account with DNS in order to customize it for the best use. Just plugging in the DNS addresses gets you their DNS but little protection, which may be what you want. No intrusions. You can set a filtering level from high (almost everything including social networking) to none. You can customize, so set it to high for example, but turn off social networking prohibition. Moderate protects against all adult-related sites and illegal activity, etc. There are 26 configurable categories. There are other settings to turn on phishing protection, botnet protection etc. Useful for geeks and the slightly knowledgable.
OpenDNS also has a default 'family plan' that automatically (without any configuring) blocks unhealthy sites (porn/phishing/drugs etc) and is what should be used particularly for families with children. Sign up is optional, not required. Router Wizard is Family Plan DNS hereThose DNS servers are 126.96.36.199 and 188.8.131.52. You can just enter that in your router now, and you are done.
All far superior to Google in my opinion.
See also their video tutorial. They make it easy.
Additionally, you are not impacted by DNS outages at your ISP. COX has had major lengthy outages due to DNS and they never impact me.
It's a no brainer.