Thanks for the hint! It may have been my error as well as I just discovered that copy cat URL before and blocked it. May have posted the copy-cat URL myself, who knows. Anyway I just posted a new submission with the correct link.
I did (I am the owner of the blog). The blog article is on www.claudiokuenzler.com - not on this kakoku URL. I have no idea why Hacker News would change the link to another domain. Maybe someone knows this?
Not a direct OVH customer, but it's a common issue with the big cloud/datacenter providers that their response is very slow. Consider smaller less known providers. They often have similar setups (but on a smaller scale) but are more responsive.