@thefreehunter AXFR are mostly everywhere blocked. They are not needed for normal operations anyway, so no reasons to have them open to public, especially if content of the zone can be considered PII. Some root-servers do allow it though, but that gives you only the list of TLDs, so not very exciting. I don't know of any TLD registry allowing AXFRs, but maybe there are some, voluntarily or not.