Can HREFLang be used for large Sites?

It was really designed for large sites that have many pages in multiple languages.   If you have a large site with more than 1,000 pages translated into 5 languages would be at 25,000 rows in your HREF XML.  One option we have in our too is to create a individual XML Site Map for each country and use an site map index file to manage them.  While this increases the number of files, it does keep the individual file sizes smaller as well as allowing you to track errors and index rates.

However, if you do wish to have a single XML site map the maximum size, by Site file size standards, is still 50,000 rows or 10MB (10,485,760 bytes) uncompressed.  If you have more than 50,000 rows, you will need to break the HREF into multiple files and use a site map index page.  The site map index page can have up to 1,000 individual XML site maps.

Our experience suggests keeping your file sizes below 10,000 URL's per XML site map as this makes them easier to index.   Our HREFlang Builder allows all of these options to be used.

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