That seems less likely to arise in practice, though.  A server should only respect such requests from a jurisdiction that can threaten the server; thus, &quot;we can&#x27;t serve you this because your jurisdiction forbids it (but ours doesn&#x27;t)&quot; should almost never arise.  The only potentially useful case there seems like &quot;if we didn&#x27;t remove this, your jurisdiction would block our entire site, eliminating the opportunity for us to tell you what has gone wrong and how to fix it&quot;.<p>&quot;We can&#x27;t serve you this because <i>our</i> jurisdiction forbids it&quot; seems likely to arise more often.<p>That said, I also don&#x27;t think the 4xx&#x2F;5xx distinction matters as much here as the evocative implication of using 451 specifically.