States with limited recognition
State Attributes
United Nations Organization membership (now 193 members) and sovereign control over two-letter Country-Code top level Internet domain (now 198) are usual attributes of sovereign state.
UN membership
Now UN has 193 members and 2 non-member states with observer status.
UN member status for a state should be approved by General Assembly and Security Council including all 5 its permanent members (China, France, Russia, UK, USA).
Palestine and Vatican are recognized by UN General Assembly as non-member states and observers. Palestinian membership application was rejected by some UN SC members and Vatican does not apply not to lose any piece of sovereignty (so did Switzerland till 2002).
Taiwan (Republic of China) was replaced in UN by People's Republic of China in 1971. It has 19 full diplomatic recognitions by current UN members. Its UN membership application of 2007 was not put to General Assembly by UN Secretary General.
Niue and Cook Islands have sovereign diplomatic relations with several countries and membership in some UN agencies but do not apply for UN member or observer status not to lose New Zealand citizenship rights for their population. So, both of them are partly dependent territories.
All of 5 above mentioned countries have full control over their Internet domains.
Kosovo is recognized by more than half UN members and is member of some UN agencies, but not enough support to apply for UN membership. Kosovo has separate telephone code but never had CC TLD. On May 6, 2009 Kosovo membership in the International Monetary Fund (IMF) was adopted with 96 countries voting in favor, 8 against (Angola, Azerbaijan, Cyprus, El Salvador, Georgia, Greece, Pakistan, Romania, Slovak Republic, and Venezuela), 32 submitted written abstentions, 47 did not vote. On June 29, 2009 Kosovo became member of IMF and World Bank (and it seems enough for ISO to include it in the List of States).
CC TLD
Two-letter domain can be delegated by ICANN to national domain registry after including country-code to United Nations List of Country Names and International Organization for Standardization (ISO) list. More than 50 dependent territories have two-level codes administered by parent state.
Western Sahara national government is recognized by almost half UN members but not by ICANN, its .eh domain is frozen.
International recognition procedure (ISO, UN)
ISO can include new country to its list after Working Group on Country Names of United Nations Group of Experts on Geographical Names has included it into the UNGEGN List of Country Names (latest versions - August 2012, May 2014, July 2017). It seems that the next list will be prepared to 2nd Session of the United Nations Group of Experts on Geographical Names (May 3-7, 2021, NY, USA). New list was presented to its 1st session (document GEGN.2/2019/13/CRP.13), but we have not found it yet. The main difference with 2017 list, according to report, is adding The State of Palestine as 195th entry.
Current independence referenda
25.09.2017 - Iraqi Kurdistan. Kurdistan Regional Government has full control over three-letter domain .krd (including gov.krd subdomain).
01.10.2017 - Catalonia. Has three-letter 'culture and language' domain .cat delegated to local private fund.
States with limited recognition
UN members, UN observers (Vatican, Palestine) and non-UN states (Taiwan - Republic of China), having control over CC-TLDs are not included.
1st level: non-UN states recognised by at least one UN member state (5)
State Regarded by as its part Recognized by UN members Suggested domain zone Abkhazia Georgia Russia - 26.08.2008, Nicaragua, Venezuela, ab.world Nauru, Syria - 29.05.2018 (5) withdrawn: Tuvalu, Vanuatu (2, total of 7) Kosovo Serbia 111 UN-members since 18.02.2008 ks.world Northern Cyprus Cyprus Turkey (1) - 15.11.1983 kk.world Sahrawi ADR Morocco 84 UN-members since 28.02.1976 sw.world South Ossetia Georgia Russia - 26.08.2008, Nicaragua, Venezuela, os.world Nauru, Syria - 29.05.2018 (5); withdrawn: Tuvalu (1, total of 6)
2nd level: non-UN states recognised by at least one 1st level limitedly recognized state (4)
State Regarded by as its part Recognized by Suggested domain zone Donetsk People's Ukraine South Ossetia (1) - 27.06.2014 dr.world Republic Luhansk People's Ukraine South Ossetia (1) - 18.06.2014 ln.world Republic Nagorno-Karabakh Azerbaijan Abkhazia, Pridnestrovie, South Ossetia (3) nk.world (Artsakh) Pridnestrovie Moldova Abkhazia, Nagorno-Karabakh, pd.world (Transnistria) South Ossetia (3)