Most of them on knuckle-dragging creationist pages.
You really think we know everything there is to know about life in all possible venues?
The top hit for "universe fine tuned for life" is a page from PBS and the Nova show: Is the Universe Fine-Tuned for Life?"
From the article:
"Take, for instance, the neutron. It is 1.00137841870 times heavier than the proton, which is what allows it to decay into a proton, electron and neutrino—a process that determined the relative abundances of hydrogen and helium after the big bang and gave us a universe dominated by hydrogen. If the neutron-to-proton mass ratio were even slightly different, we would be living in a very different universe: one, perhaps, with far too much helium, in which stars would have burned out too quickly for life to evolve, or one in which protons decayed into neutrons rather than the other way around, leaving the universe without atoms. So, in fact, we wouldn’t be living here at all—we wouldn’t exist."
Ponder that. It's just one factor. As far as life in other venues again once we get outside of earth's atmosphere any kind of life not protected dies. Ceases to live. Assumes space temperature. Now could there be another planet that precisely matches the earths' conditions where life CAN exist unprotected? The odds are way against it. But if it did that doesn't automatically mean life does exist because if life did arise by chance there's virtually no chance that it would happen twice in the same universe.