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Yandex has a nice index, it kinda reminds me of a search engine.Probably because they are.
There are many IP addresses that Yandex robots can originate from, and these IP addresses are subject to change. We are therefore unable to offer a list of IP addresses and we do not recommend using a filter based on IP addresses.
Not sure how to run this under windows but there is probably an equivalent to dig.
At the time there was still a web version running