Using conflicting or contradictory tags on the web site. It is best to often use steady and coherent tags on your own page. Such as, you shouldn't use and on exactly the same web site. This may confuse serps and could cause them to ignore or penalize your page. Search https://dominickschln.webbuzzfeed.com/29373771/the-ultimate-guide-to-automatische-hreflang-tags-en-canonieke-tags-seo