You need to use canonical tags to indicate the principal Edition of a webpage to search engines. Loads of hreflang faults originate from using canonical tags and hreflang characteristics jointly incorrectly. But a person from Spain carrying out exactly the same research will see the Spanish Edition of your blog https://thebookmarkage.com/story18792343/the-smart-trick-of-hreflang-not-using-canonical-that-no-one-is-discussing