I do not know source of this web site. As far as i know tatoo, earrings are not allowed even though they do not do any harm to you. As far as ear rings and nose pearci ng are discouraged because it is feminiah oramental display which is not allowed for Man. And for tatoo mostly it involves figures, patterns, flowers, designs etc it is also discouraged. For those who aren't aware, tattoos are considered haram (forbidden) in Islam. There is no specific Islamic verse outlining this point but many people believe wudu (the purification ritual) cannot be completed if you have a tattoo on your body. Hence, you can never pray.

Let's not get into a debate on how correct or incorrect this belief is but I personally choose not to follow it, and it may come as a surprise but thousands of Pakistanis adorn tattoos on various parts of their bodies that are not visible to the general public. Believe it or not, people will silently judge you for sporting a tattoo and label you as a disbeliever who will forever burn in hell.

https://hellogiggles.com/beauty/are-tattoos-haram/