Atcc.org has robots.txt file. Http response code is 200.
Robots size is very small. It is about 5 kb and 2 rows.

Robots.txt for User-Agent=* contains only disallow directives.

Host directive is not presented for domain atcc.org in robots.txt file.
Array
(
    [*] => Array
        (
            [disallow] => Array
                (
                    [0] => /landing_pages/
                )

        )

)
User-agent: *
Disallow: /landing_pages/
  • код 301 http://atcc.org/robots.txt
  • код 200 https://atcc.org:443/robots.txt