Yes, California does allow signers to use remote online notary (RON) services. California Civil Code 1189(b) provides that any "certificate of acknowledgment taken in another place shall be sufficient in this state if it is taken in accordance with the law of the place where the acknowledgment is made."
Can California Notary Publics provide RON services? Not yet. California's Remote Online Notaries Public bill (AB 1093) is pending. While California Notary Publics are still limited to providing in person notarizations, online remote notary services provided by an authorized notarial service outside of California are accepted in California.