Let’s crank the corporate-speak up a notch and call it “web assets”.
As in: “The synergies between our various web assets empower our value proposition.”
Which would obviously require a paradigm shift towards winning practices. 
And the brainiacs that literally impugn our integrity will be admonished by our cunning verbosity.
AAACCKKKKK!! Stop, my brain is bleeding! I’m allergic to corp-speak!
If I use the term website, then I’m back to having to put “Web site(s) and/or Web page(s)” everywhere, which is exactly what I’m trying to avoid. Don’t blame me, it wasn’t my idea.