Before sharing your information on the Internet, the best approach is to ask a trusted adult to make sure it is safe. This ensures that you get guidance from someone with more experience regarding online safety. Additionally, reading the website thoroughly can also help you understand its privacy policies and how your information will be used. While it's good to be cautious about the information you share, outright never providing any information may not be practical, as some information is often necessary for services you may want to use. Checking for untraceability is also challenging and may not be feasible.
In summary, the key actions include seeking advice from a trusted adult and thoroughly understanding the website's terms and conditions before sharing any information.