Googlebot/2.1 (+http://www.googlebot.com/bot.html) Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots) Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)...

Googlebot/2.1 (+http://www.googlebot.com/bot.html)
Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)
Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)
msnbot/1.1 (+http://search.msn.com/msnbot.htm)

Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
Mediapartners-Google/2.1; +http://www.google.com/bot.html
msnbot-media/1.0 (+http://search.msn.com/msnbot.htm)
msnbot-media/1.1 (+http://search.msn.com/msnbot.htm)
Mozilla/5.0 (compatible;YandexAccessibilityBot/3.0;+http://yandex.com/bots)
Mozilla/5.0 (compatible; YandexFavicons/1.0; +http://yandex.com/bots)