Oper.ru has robots.txt file. Http response code is 200.
Robots size is very small. It is about 7 kb and 2 rows.

oper.ru has sitemap file https://oper.ru/sitemap.xml. Host directive is not presented for domain oper.ru in robots.txt file.
Array
(
    [*] => Array
        (
            [sitemap] => Array
                (
                    [0] => https://oper.ru/sitemap.xml
                )

        )

)
Sitemap: https://oper.ru/sitemap.xml
User-Agent: *


  • код 301 http://oper.ru/robots.txt
  • код 200 https://oper.ru/robots.txt