Now do you consider yourself tech savvy or do you not have a clue? The chances are - even if they're very young - your children or grandchildren will be more clued up than you - and being aware of exactly what they can access online, is the subject of a new campaign launched today by NSPCC Cymru.
Watch the report by Sarah Powell:
In a digital world, its easy for children to access websites they shouldn't. And parents are struggling to keep up....
Now Children's Charity the NSPCC have launched a website where parents can check whether apps and sites are suitable.
It gives safety credentials of apps and websites, so parents can monitor whether their children are looking at appropriate content online.
Michelle Davies is a mother of three from Cardiff. She has her own blog, and thinks she's up-to-date with the latest technology, but even she has her concerns about the things her children might be clicking on.
Have a look at some of the following websites for more advice on keeping your children safe when surfing the web: