Is this URL safe to open

I have been asked to open a web page whose address starts with ps://www.pinterest.co.uk/pin/ - is it safe to open and what is the prefix ps all about?

I imagine that htt is missing from the start. i.e. should be https://www...... https is secure communication. Banks etc use it.

In reply to a post by Michael_Chare:

https is secure communication. Banks etc use it.

Most websites use it now (including my own) as http is being actively discouraged.

Silly me, of course it was!

As do these forums!