This attribute comes in clutch for pages that serve as the default Model for people whose language or location doesn’t match any hreflang tags.  Yahoo: Yahoo works by using Bing’s search engineering and supports hreflang tags in a similar way as Bing. It prioritizes the proper content Edition according to https://bookmarkssocial.com/story18714621/5-tips-about-%D0%90%D0%B2%D1%82%D0%BE%D0%BC%D0%B0%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5-%D1%82%D0%B5%D0%B3%D0%B8-hreflang-%D0%B8-%D0%BA%D0%B0%D0%BD%D0%BE%D0%BD%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5-%D1%82%D0%B5%D0%B3%D0%B8-seo-you-can-use-today