User-agent: Yandex
Disallow: /*_openstat
Disallow: /*from=adwords
Disallow: /*utm_source
Disallow: /cart.php
Disallow: /*kolvo
Host: www.spektrsteel.ru

User-agent: Googlebot
Disallow: /*_openstat
Disallow: /*from=adwords
Disallow: /*utm_source
Disallow: /cart.php
Disallow: /*kolvo

User-agent: *
Disallow: /cart.php