Validates a new site sign-up for an existing user.

Validates the new site sign-up.

Validates new site signup.

Validates user sign-up name and email.

Validates the new user sign-up.

Prints styles for front-end Multisite Sign-up pages.

Filters the new default site meta variables.

Fires after the sign-up forms, before wp_footer.

Fires before the site Sign-up form.

Fires before the Site Sign-up page is loaded.