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by spc476 2529 days ago
If only it was that easy. Last month MJ12Bot hit my site from 136 distinct IP addresses. If we drop the last octet, it's 120 unique class-C addresses, and if we drop the last two octets, then 43 unique class-B addresses (and why not---31 distinct class-A addresses). It's a distributed bot. Very hard to block, so I think I came out ahead by them no longer spidering my site.

Edit: Added count of class-A blocks.