I don't know who maintains that site, or who led you to it, but they don't know what they're talking about.
A Karaite Jew does not believe Jesus to be the Messiah and rejects later additions to the Tanach (Jewish Bible) such as the Rabbinic Oral Law.
Likewise, Rabbis of the Jewish Rabbinic faith do not believe Jesus to be the Messaih.
Michael Rood whole heartily believes Jesus/Yeshua to be the one true son of God and the Messiah as foretold by the Hebrew prophets. He actually has a distain for the use of the word Rabbi.
There is the Messianic Jewish faith that at least shares the common belief with Rood in Jesus as Messiah, but Rood differs with this belief in many other teachings.
So see, Rood is neither a Karaite or a Rabbi. He is a follower of what is being termed the Jewish Roots movement. You really should spend a little time learning more from the source and/or reliable sites, before making these outrageously untrue statements.
Just sayin'...
Interestingly, the Nazis told the Karaites they weren't Jews, and thus were exempted from certain fates the Jews suffered.
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And what calendar do you follow?
And how many more times will the doomsday deadline predicted by Rood pass?
Don't get me wrong -- I don't have an issue with many, or probably even most, of his views -- view that are common in the messianic Hebrew roots movement. But Rood goes far, far beyond that, portraying himself as a -- dare I say it? -- prophet.