As of August 2021, that is the case of Anguilla's .ai, online at http://ai./ (displaying a notice that the site is no longer public), and of Uzbekistan's .uz, online at https://uz./ (as a mirror of https://cctld.uz/, albeit with an invalid certificate). Other ccTLDs with A or AAAA records, as of August 2021, include: .bh, .cm, .pn, .tk, .va, and .ws. A similar query to orgs presented above can be made for ai, which shows A and MX records for the TLD: QUESTION ai. IN ANY ANSWER ai. 21599 IN A 209.59.119.34 ai. 21599 IN MX 10 mail.offshore.ai. ai. 21599 IN NS anycastdns1-cz.nic.ai. ai. 21599 IN NS anycastdns2-cz.nic.ai. ai. 21599 IN NS pch.whois.ai. […] Historically, many other ccTLDs have had A or AAAA records. On 3 September 2013, as reported by the IETF, they were the following: .ac, .dk, .gg, .io, .je, .kh, .sh, .tm, .to, and .vi. New TLDs Following a 2014 resolution by ICANN, newly registered TLDs must implement the following A, MX, TXT, and SRV apex DNS records – where <TLD> stands for the registered TLD – for at least 90 days: <TLD>. 3600 IN MX 10 your-dns-needs-immediate-attention.<TLD>. <TLD>. 3600 IN SRV 10 10 0 your-dns-needs-immediate-attention.<TLD>. <TLD>. 3600 IN TXT "Your DNS configuration needs immediate attention see https://icann.org/namecollision" <TLD>. 3600 IN A 127.0.53.53 This requirement is meant to avoid domain name collisions when new TLDs are registered. For example, programmers may have used custom local domains such as foo.bar or test.dev, which would both collide with the creation of gTLDs .bar in 2014 and .dev in 2019. As of August 2021, top-level domains with these special apex records are .arab, .cpa, .politie, and .watches. While this does create apex DNS records of type A and MX, they do not qualify as a dotless domain, as the records should not point to real servers. For instance, the A record contains the IP 127.0.53.53, a loopback address (see IPv4 § Addressing), picked as a mnemonic to indicate a DNS-related problem, as DNS uses port 53. Pseudo-domains Several networks, such as BITNET, CSNET, and UUCP, existed that were in widespread use among computer professionals and academic users, but were not interoperable directly with the Internet and exchanged mail with the Internet via special email gateways. For relaying purposes on the gateways, messages associated with these networks were labeled with suffixes such as bitnet, oz, csnet, or uucp, but these domains did