In case you have non-HTML pages on your website, for instance PDFs or spreadsheets, you received’t be able to employ hreflang in the from the HTML because it doesn’t exist.  If none of these are employed, Google will count on other indicators like hreflang, inside links, and URL duration to https://ezmarkbookmarks.com/story18878437/not-known-facts-about-hreflang-not-using-canonical