What is for?

Hellow. Could you help me understand the following sentence?

This is from Australian website to apply for a visa.

Information or materials which are offensive, pornographic, unsuitable for minors' access or otherwise of a criminal or violent nature may be accessible through this site either as a result of hacking or material placed on linked websites. The department makes no representations as to the suitability of the information accessible for viewing by minors or any other person.

I'm wondering what is for in that sentence?

Suitability for?

Accessible for?

Could you tell me, please?