Publicizes the public key certificate in ldap directory

Hello all,

I am new to LDAP and was willing to know is it possible to insert the users public key certificate along with its name, description and all other info?
Also if a user has a website which should be accessible from other users and for that purpose needs to add that in LDAP directory so that it shows in search result. So how to add URL in ldap as I didn't find any objectclass attribute of URL.

Thanks in advance.

to insert URL into ldap there is a labeledURI attribute in objectclass inetOrgPerson.