Moving Providers and Tainted IPs
I recently switched hosting providers for the host you’re reading this on (more on the hows and whys in a later post, perhaps). Most of the “work” involved in moving stuff involved changing the main IP address as it obviously changed. Being in a shared hosting environment, one is assigned an IPv4 address at random which is likely to have been used in the past. My old instance had been running for about a decade on the same IP so had a decent reputation of not sending bad traffic around the world, but it quickly became clear I was not so lucky with the new host.