где и как найти файлы robots.txt, sitemap.xml и как их редактировать, возможно, на сайте стоит плагин, которы делает редактирование автоматически, по какому то алгоритму
They are located in the WordPress core folder, I would recommend searching for the plugins that would allow configuring, editing may crash your site if you are not highly skilled. We can hardly recommend which is the best, you will easily find may by a keyword.
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