Domain and PrC with +1 divine caster level feat

[Mortarion]

If i'm a cleric and i multiclass in a class who get +1 divine caster level each lev but dont have the domain feat is it give me also domain spell and spell slot? i think not because "spells" and "domains" are two separate feats and if your domain feat doesn't advance you don't receive any bonus it gives, but i need a confirm.

[ryric]

Your domain spell slots are part of the "spells" class feature and those advance/you get those. Your domain powers, however, will not advance. So if you mulitclass before level 6/8 you won't get the higher level domain abilities, and domain powers that depend on your cleric level will stop improving.

[Mortarion]

thank you for your answer, but what about domains spells known? do i gain them?

[Bizbag]

Yes; you gain the domain slot and can choose either of your spells to prepare in it.

Remember that a domain spell that is not on the normal cleric list can not be prepared in your regular slots; so a Fire domain cleric can only prepare Fireball in his domain slot.