diff --git a/iana-domains-db.json b/iana-domains-db.json
index c558236f..394d8797 100644
--- a/iana-domains-db.json
+++ b/iana-domains-db.json
@@ -64,7 +64,7 @@
     "ao": null,
     "aol": "whois.nic.aol",
     "apartments": "whois.nic.apartments",
-    "app": "whois.nic.google",
+    "app": "whois.nic.app",
     "apple": "whois.nic.apple",
     "aq": null,
     "aquarelle": "whois.nic.aquarelle",
@@ -95,13 +95,13 @@
     "avianca": null,
     "aw": "whois.nic.aw",
     "aws": "whois.nic.aws",
-    "ax": null,
+    "ax": "whois.ax",
     "axa": "whois.nic.axa",
     "az": null,
     "azure": "whois.nic.azure",
     "ba": null,
     "baby": "whois.nic.baby",
-    "baidu": "whois.gtld.knet.cn",
+    "baidu": "whois.nic.baidu",
     "banamex": "whois.nic.banamex",
     "bananarepublic": null,
     "band": "whois.nic.band",
@@ -132,8 +132,8 @@
     "best": "whois.nic.best",
     "bestbuy": "whois.nic.bestbuy",
     "bet": "whois.nic.bet",
-    "bf": null,
-    "bg": null,
+    "bf": "whois.registre.bf",
+    "bg": "whois.register.bg",
     "bh": "whois.nic.bh",
     "bharti": "whois.nic.bharti",
     "bi": "whois1.nic.bi",
@@ -163,7 +163,7 @@
     "boats": "whois.nic.boats",
     "boehringer": "whois.nic.boehringer",
     "bofa": "whois.nic.bofa",
-    "bom": "whois.gtlds.nic.br",
+    "bom": "whois.nic.bom",
     "bond": "whois.nic.bond",
     "boo": "whois.nic.boo",
     "book": "whois.nic.book",
@@ -176,7 +176,7 @@
     "boutique": "whois.nic.boutique",
     "box": "whois.nic.box",
     "bq": null,
-    "br": "whois.nic.br",
+    "br": "whois.registro.br",
     "bradesco": "whois.nic.bradesco",
     "bridgestone": "whois.nic.bridgestone",
     "broadway": "whois.nic.broadway",
@@ -231,7 +231,7 @@
     "cbn": "whois.nic.cbn",
     "cbre": "whois.nic.cbre",
     "cbs": null,
-    "cc": "whois.nic.cc",
+    "cc": "ccwhois.verisign-grs.com",
     "cd": "whois.nic.cd",
     "ceb": null,
     "center": "whois.nic.center",
@@ -243,7 +243,7 @@
     "cg": null,
     "ch": "whois.nic.ch",
     "chanel": "whois.nic.chanel",
-    "channel": "whois.nic.google",
+    "channel": "whois.nic.channel",
     "charity": "whois.nic.charity",
     "chase": "whois.nic.chase",
     "chat": "whois.nic.chat",
@@ -254,7 +254,7 @@
     "chrome": "whois.nic.google",
     "chrysler": null,
     "church": "whois.nic.church",
-    "ci": null,
+    "ci": "whois.nic.ci",
     "cipriani": "whois.nic.cipriani",
     "circle": "whois.nic.circle",
     "cisco": "whois.nic.cisco",
@@ -275,14 +275,14 @@
     "club": "whois.nic.club",
     "clubmed": "whois.nic.clubmed",
     "cm": "whois.netcom.cm",
-    "cn": null,
+    "cn": "whois.cnnic.cn",
     "co": "whois.nic.co",
     "coach": "whois.nic.coach",
     "codes": "whois.nic.codes",
     "coffee": "whois.nic.coffee",
     "college": "whois.nic.college",
     "cologne": "whois.ryce-rsp.com",
-    "com": "whois.verisign-grs.com",
+    "com": null,
     "comcast": null,
     "commbank": "whois.nic.commbank",
     "community": "whois.nic.community",
@@ -317,7 +317,7 @@
     "csc": null,
     "cu": null,
     "cuisinella": "whois.nic.cuisinella",
-    "cv": "whois.nic.cv",
+    "cv": null,
     "cw": null,
     "cx": "whois.nic.cx",
     "cy": null,
@@ -334,7 +334,7 @@
     "day": "whois.nic.google",
     "dclk": "whois.nic.google",
     "dds": "whois.nic.dds",
-    "de": "whois.denic.de",
+    "de": "whois.nic.de",
     "deal": "whois.nic.deal",
     "dealer": "whois.nic.dealer",
     "deals": "whois.nic.deals",
@@ -348,7 +348,7 @@
     "dentist": "whois.nic.dentist",
     "desi": "whois.nic.desi",
     "design": "whois.nic.design",
-    "dev": "whois.nic.google",
+    "dev": "whois.nic.dev",
     "dhl": "whois.nic.dhl",
     "diamonds": "whois.nic.diamonds",
     "diet": "whois.nic.diet",
@@ -360,7 +360,7 @@
     "dish": "whois.nic.dish",
     "diy": "whois.nic.diy",
     "dj": null,
-    "dk": "whois.nic.dk",
+    "dk": "whois.punktum.dk",
     "dm": "whois.nic.dm",
     "dnp": "whois.nic.dnp",
     "do": "whois.nic.do",
@@ -373,7 +373,7 @@
     "doosan": null,
     "dot": "whois.nic.dot",
     "download": "whois.nic.download",
-    "drive": "whois.nic.google",
+    "drive": "whois.nic.drive",
     "dtv": "whois.nic.dtv",
     "dubai": "whois.nic.dubai",
     "duck": null,
@@ -383,15 +383,15 @@
     "durban": "whois.nic.durban",
     "dvag": "whois.nic.dvag",
     "dvr": "whois.nic.dvr",
-    "dz": null,
+    "dz": "whois.nic.dz",
     "earth": "whois.nic.earth",
-    "eat": "whois.nic.eat",
-    "ec": null,
+    "eat": "whois.nic.google",
+    "ec": "whois.nic.ec",
     "eco": "whois.nic.eco",
     "edeka": "whois.nic.edeka",
     "edu": "whois.educause.edu",
     "education": "whois.nic.education",
-    "ee": "whois.tld.ee",
+    "ee": null,
     "eg": null,
     "eh": null,
     "email": "whois.nic.email",
@@ -407,7 +407,7 @@
     "ericsson": "whois.nic.ericsson",
     "erni": "whois.nic.erni",
     "es": "whois.nic.es",
-    "esq": "whois.nic.google",
+    "esq": "whois.nic.esq",
     "estate": "whois.nic.estate",
     "esurance": null,
     "et": null,
@@ -437,12 +437,12 @@
     "feedback": "whois.nic.feedback",
     "ferrari": "whois.nic.ferrari",
     "ferrero": "whois.nic.ferrero",
-    "fi": null,
+    "fi": "whois.fi",
     "fiat": null,
     "fidelity": "whois.nic.fidelity",
     "fido": "whois.nic.fido",
     "film": "whois.nic.film",
-    "final": "whois.nic.final",
+    "final": "whois.gtlds.nic.br",
     "finance": "whois.nic.finance",
     "financial": "whois.nic.financial",
     "fire": "whois.nic.fire",
@@ -460,7 +460,7 @@
     "florist": "whois.nic.florist",
     "flowers": "whois.nic.flowers",
     "flsmidth": null,
-    "fly": "whois.nic.fly",
+    "fly": "whois.nic.google",
     "fm": "whois.nic.fm",
     "fo": "whois.nic.fo",
     "foo": "whois.nic.google",
@@ -507,11 +507,11 @@
     "gent": "whois.nic.gent",
     "genting": "whois.nic.genting",
     "george": "whois.nic.george",
-    "gf": null,
-    "gg": "whois.gg",
+    "gf": "whois.mediaserv.net",
+    "gg": null,
     "ggee": "whois.nic.ggee",
     "gh": "whois.nic.gh",
-    "gi": "whois.identitydigital.services",
+    "gi": null,
     "gift": "whois.nic.gift",
     "gifts": "whois.nic.gifts",
     "gives": "whois.nic.gives",
@@ -527,7 +527,7 @@
     "gmbh": "whois.nic.gmbh",
     "gmo": "whois.nic.gmo",
     "gmx": "whois.nic.gmx",
-    "gn": null,
+    "gn": "whois.ande.gov.gn",
     "godaddy": "whois.nic.godaddy",
     "gold": "whois.nic.gold",
     "goldpoint": "whois.nic.goldpoint",
@@ -563,7 +563,7 @@
     "gy": "whois.registry.gy",
     "hair": "whois.nic.hair",
     "hamburg": "whois.nic.hamburg",
-    "hangout": "whois.nic.google",
+    "hangout": "whois.nic.hangout",
     "haus": "whois.nic.haus",
     "hbo": "whois.nic.hbo",
     "hdfc": "whois.nic.hdfc",
@@ -576,10 +576,10 @@
     "hermes": "whois.nic.hermes",
     "hgtv": null,
     "hiphop": "whois.nic.hiphop",
-    "hisamitsu": "whois.nic.hisamitsu",
-    "hitachi": "whois.nic.hitachi",
+    "hisamitsu": "whois.nic.gmo",
+    "hitachi": "whois.nic.gmo",
     "hiv": "whois.nic.hiv",
-    "hk": "whois.hkirc.hk",
+    "hk": null,
     "hkt": "whois.nic.hkt",
     "hm": "whois.registry.hm",
     "hn": "whois.nic.hn",
@@ -601,8 +601,8 @@
     "hotels": "whois.nic.hotels",
     "hotmail": "whois.nic.hotmail",
     "house": "whois.nic.house",
-    "how": "whois.nic.how",
-    "hr": "whois.nic.hr",
+    "how": "whois.nic.google",
+    "hr": "whois.dns.hr",
     "hsbc": "whois.nic.hsbc",
     "ht": "whois.nic.ht",
     "htc": null,
@@ -615,7 +615,7 @@
     "ice": "whois.nic.ice",
     "icu": "whois.nic.icu",
     "id": null,
-    "ie": "whois.weare.ie",
+    "ie": null,
     "ieee": "whois.nic.ieee",
     "ifm": "whois.nic.ifm",
     "iinet": null,
@@ -631,7 +631,7 @@
     "industries": "whois.nic.industries",
     "infiniti": "whois.nic.infiniti",
     "info": "whois.nic.info",
-    "ing": "whois.nic.ing",
+    "ing": "whois.nic.google",
     "ink": "whois.nic.ink",
     "institute": "whois.nic.institute",
     "insurance": "whois.nic.insurance",
@@ -646,7 +646,7 @@
     "iq": "whois.cmc.iq",
     "ir": "whois.nic.ir",
     "irish": "whois.nic.irish",
-    "is": "whois.nic.is",
+    "is": "whois.isnic.is",
     "iselect": null,
     "ismaili": "whois.nic.ismaili",
     "ist": "whois.nic.ist",
@@ -775,7 +775,7 @@
     "lplfinancial": "whois.nic.lplfinancial",
     "lr": null,
     "ls": "whois.nic.ls",
-    "lt": null,
+    "lt": "whois.domreg.lt",
     "ltd": "whois.nic.ltd",
     "ltda": "whois.nic.ltda",
     "lu": "whois.dns.lu",
@@ -830,7 +830,7 @@
     "mint": "whois.nic.mint",
     "mit": "whois.nic.mit",
     "mitsubishi": "whois.nic.gmo",
-    "mk": null,
+    "mk": "whois.marnet.mk",
     "ml": "whois.nic.ml",
     "mlb": "whois.nic.mlb",
     "mls": "whois.nic.mls",
@@ -859,8 +859,8 @@
     "movie": "whois.nic.movie",
     "movistar": null,
     "mp": null,
-    "mq": "whois.nic.mq",
-    "mr": null,
+    "mq": "whois.mediaserv.net",
+    "mr": "whois.nic.mr",
     "ms": "whois.nic.ms",
     "msd": "whois.nic.msd",
     "mt": null,
@@ -875,7 +875,7 @@
     "mv": null,
     "mw": "whois.nic.mw",
     "mx": "whois.mx",
-    "my": null,
+    "my": "whois.mynic.my",
     "mz": "whois.nic.mz",
     "na": null,
     "nab": "whois.nic.nab",
@@ -894,7 +894,7 @@
     "netflix": "whois.nic.netflix",
     "network": "whois.nic.network",
     "neustar": "whois.nic.neustar",
-    "new": "whois.nic.google",
+    "new": "whois.nic.new",
     "newholland": null,
     "news": "whois.nic.news",
     "next": "whois.nic.next",
@@ -910,10 +910,10 @@
     "nike": "whois.nic.nike",
     "nikon": "whois.nic.nikon",
     "ninja": "whois.nic.ninja",
-    "nissan": "whois.nic.nissan",
+    "nissan": "whois.nic.gmo",
     "nissay": "whois.nic.nissay",
-    "nl": null,
-    "no": "whois.norid.no",
+    "nl": "whois.domain-registry.nl",
+    "no": null,
     "nokia": "whois.nic.nokia",
     "northwesternmutual": null,
     "norton": "whois.nic.norton",
@@ -925,9 +925,9 @@
     "nra": "whois.nic.nra",
     "nrw": "whois.nic.nrw",
     "ntt": "whois.nic.ntt",
-    "nu": null,
+    "nu": "whois.iis.nu",
     "nyc": "whois.nic.nyc",
-    "nz": null,
+    "nz": "whois.irs.net.nz",
     "obi": "whois.nic.obi",
     "observer": "whois.nic.observer",
     "off": null,
@@ -948,7 +948,7 @@
     "open": "whois.nic.open",
     "oracle": "whois.nic.oracle",
     "orange": "whois.nic.orange",
-    "org": "whois.publicinterestregistry.org",
+    "org": null,
     "organic": "whois.nic.organic",
     "orientexpress": null,
     "origins": "whois.nic.origins",
@@ -957,19 +957,19 @@
     "ott": "whois.nic.ott",
     "ovh": "whois.nic.ovh",
     "pa": null,
-    "page": "whois.nic.page",
+    "page": "whois.nic.google",
     "pamperedchef": null,
-    "panasonic": "whois.nic.panasonic",
+    "panasonic": "whois.nic.gmo",
     "panerai": null,
     "paris": "whois.nic.paris",
     "pars": "whois.nic.pars",
     "partners": "whois.nic.partners",
-    "parts": "whois.nic.parts",
+    "parts": null,
     "party": "whois.nic.party",
     "passagens": null,
     "pay": "whois.nic.pay",
-    "pccw": "whois.nic.pccw",
-    "pe": "kero.yachay.pe",
+    "pccw": null,
+    "pe": "whois.nic.pe",
     "pet": "whois.nic.pet",
     "pf": null,
     "pfizer": "whois.nic.pfizer",
@@ -993,8 +993,8 @@
     "pink": "whois.nic.pink",
     "pioneer": "whois.nic.pioneer",
     "pizza": "whois.nic.pizza",
-    "pk": "whois.pknic.net.pk",
-    "pl": "whois.dns.pl",
+    "pk": null,
+    "pl": null,
     "place": "whois.nic.place",
     "play": "whois.nic.play",
     "playstation": "whois.nic.playstation",
@@ -1007,16 +1007,16 @@
     "poker": "whois.nic.poker",
     "politie": "whois.nic.politie",
     "porn": "whois.nic.porn",
-    "post": "whois.nic.post",
-    "pr": "whois.nic.pr",
+    "post": "whois.dotpostregistry.net",
+    "pr": "whois.afilias-srs.net",
     "pramerica": "whois.nic.pramerica",
     "praxi": "whois.nic.praxi",
     "press": "whois.nic.press",
     "prime": "whois.nic.prime",
     "pro": "whois.nic.pro",
-    "prod": "whois.nic.prod",
+    "prod": "whois.nic.google",
     "productions": "whois.nic.productions",
-    "prof": null,
+    "prof": "whois.nic.prof",
     "progressive": "whois.nic.progressive",
     "promo": "whois.nic.promo",
     "properties": "whois.nic.properties",
@@ -1025,7 +1025,7 @@
     "pru": "whois.nic.pru",
     "prudential": "whois.nic.prudential",
     "ps": null,
-    "pt": "whois.dns.pt",
+    "pt": null,
     "pub": "whois.nic.pub",
     "pw": "whois.nic.pw",
     "pwc": "whois.nic.pwc",
@@ -1071,22 +1071,22 @@
     "rio": "whois.gtlds.nic.br",
     "rip": "whois.nic.rip",
     "rmit": null,
-    "ro": "whois.rotld.ro",
+    "ro": null,
     "rocher": null,
     "rocks": "whois.nic.rocks",
     "rodeo": "whois.nic.rodeo",
     "rogers": "whois.nic.rogers",
     "room": "whois.nic.room",
     "rs": null,
-    "rsvp": null,
-    "ru": "whois.nic.ru",
+    "rsvp": "whois.nic.rsvp",
+    "ru": "whois.tcinet.ru",
     "rugby": "whois.nic.rugby",
     "ruhr": "whois.nic.ruhr",
     "run": "whois.nic.run",
-    "rw": "whois.nic.rw",
+    "rw": "whois.ricta.org.rw",
     "rwe": "whois.nic.rwe",
     "ryukyu": "whois.nic.ryukyu",
-    "sa": "whois.nic.sa",
+    "sa": "whois.nic.net.sa",
     "saarland": "whois.nic.saarland",
     "safe": "whois.nic.safe",
     "safety": "whois.nic.safety",
@@ -1121,8 +1121,8 @@
     "scor": null,
     "scot": "whois.nic.scot",
     "sd": "whois.nic.sd",
-    "se": "whois.iis.se",
-    "search": "whois.nic.google",
+    "se": null,
+    "search": "whois.nic.search",
     "seat": "whois.nic.seat",
     "secure": "whois.nic.secure",
     "security": "whois.nic.security",
@@ -1136,10 +1136,10 @@
     "sex": "whois.nic.sex",
     "sexy": "whois.nic.sexy",
     "sfr": "whois.nic.sfr",
-    "sg": "whois.sgnic.sg",
+    "sg": null,
     "sh": "whois.nic.sh",
     "shangrila": "whois.nic.shangrila",
-    "sharp": "whois.nic.sharp",
+    "sharp": "whois.nic.gmo",
     "shaw": "whois.afilias-srs.net",
     "shell": "whois.nic.shell",
     "shia": "whois.nic.shia",
@@ -1147,11 +1147,11 @@
     "shoes": "whois.nic.shoes",
     "shop": "whois.nic.shop",
     "shopping": "whois.nic.shopping",
-    "shouji": "whois.nic.shouji",
+    "shouji": "whois.teleinfo.cn",
     "show": "whois.nic.show",
     "showtime": null,
     "shriram": null,
-    "si": null,
+    "si": "whois.register.si",
     "silk": "whois.nic.silk",
     "sina": "whois.nic.sina",
     "singles": "whois.nic.singles",
@@ -1207,7 +1207,7 @@
     "studio": "whois.nic.studio",
     "study": "whois.nic.study",
     "style": "whois.nic.style",
-    "su": "whois.tcinet.ru",
+    "su": null,
     "sucks": "whois.nic.sucks",
     "supplies": "whois.nic.supplies",
     "supply": "whois.nic.supply",
@@ -1219,8 +1219,8 @@
     "swatch": "whois.nic.swatch",
     "swiftcover": null,
     "swiss": "whois.nic.swiss",
-    "sx": null,
-    "sy": "whois.tld.sy",
+    "sx": "whois.sx",
+    "sy": null,
     "sydney": "whois.nic.sydney",
     "symantec": null,
     "systems": "whois.nic.systems",
@@ -1270,7 +1270,7 @@
     "tm": "whois.nic.tm",
     "tmall": "whois.nic.tmall",
     "tn": "whois.ati.tn",
-    "to": "whois.tonic.to",
+    "to": null,
     "today": "whois.nic.today",
     "tokyo": "whois.nic.tokyo",
     "tools": "whois.nic.tools",
@@ -1300,7 +1300,7 @@
     "tushu": "whois.nic.tushu",
     "tv": "whois.nic.tv",
     "tvs": "whois.nic.tvs",
-    "tw": "whois.twnic.net.tw",
+    "tw": null,
     "tz": "whois.tznic.or.tz",
     "ua": "whois.ua",
     "ubank": "whois.nic.ubank",
@@ -1312,10 +1312,10 @@
     "unicom": "whois.nic.unicom",
     "university": "whois.nic.university",
     "uno": "whois.nic.uno",
-    "uol": "whois.gtlds.nic.br",
+    "uol": "whois.nic.uol",
     "ups": "whois.nic.ups",
     "us": "whois.nic.us",
-    "uy": "whois.nic.org.uy",
+    "uy": null,
     "uz": "whois.cctld.uz",
     "va": null,
     "vacations": "whois.nic.vacations",
@@ -1329,7 +1329,7 @@
     "versicherung": "whois.nic.versicherung",
     "vet": "whois.nic.vet",
     "vg": "whois.nic.vg",
-    "vi": "virgil.nic.vi",
+    "vi": "whois.nic.vi",
     "viajes": "whois.nic.viajes",
     "video": "whois.nic.video",
     "vig": "whois.nic.vig",
@@ -1353,12 +1353,12 @@
     "voting": "whois.nic.voting",
     "voto": "whois.nic.voto",
     "voyage": "whois.nic.voyage",
-    "vu": "whois.dnrs.vu",
+    "vu": null,
     "vuelos": null,
     "wales": "whois.nic.wales",
     "walmart": "whois.nic.walmart",
     "walter": "whois.nic.walter",
-    "wang": "whois.gtld.knet.cn",
+    "wang": "whois.nic.wang",
     "wanggou": "whois.nic.wanggou",
     "warman": null,
     "watch": "whois.nic.watch",
@@ -1388,7 +1388,7 @@
     "works": "whois.nic.works",
     "world": "whois.nic.world",
     "wow": "whois.nic.wow",
-    "ws": "whois.website.ws",
+    "ws": null,
     "wtc": "whois.nic.wtc",
     "wtf": "whois.nic.wtf",
     "xbox": "whois.nic.xbox",
@@ -1400,24 +1400,24 @@
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     "xn--1ck2e1b": "whois.nic.xn--1ck2e1b",
-    "xn--1qqw23a": "whois.nic.xn--1qqw23a",
+    "xn--1qqw23a": "whois.ngtld.cn",
     "xn--2scrj9c": "whois.registry.in",
     "xn--30rr7y": "whois.gtld.knet.cn",
     "xn--3bst00m": "whois.gtld.knet.cn",
-    "xn--3ds443g": "whois.nic.xn--3ds443g",
-    "xn--3e0b707e": null,
+    "xn--3ds443g": "whois.teleinfo.cn",
+    "xn--3e0b707e": "whois.kr",
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     "xn--3oq18vl8pn36a": null,
     "xn--3pxu8k": "whois.nic.xn--3pxu8k",
     "xn--42c2d9a": "whois.nic.xn--42c2d9a",
-    "xn--45br5cyl": null,
-    "xn--45brj9c": null,
+    "xn--45br5cyl": "whois.registry.in",
+    "xn--45brj9c": "whois.registry.in",
     "xn--45q11c": "whois.gtld.knet.cn",
     "xn--4dbrk0ce": null,
     "xn--4gbrim": "whois.nic.xn--4gbrim",
     "xn--54b7fta0cc": null,
-    "xn--55qw42g": "whois.conac.cn",
-    "xn--55qx5d": "whois.ngtld.cn",
+    "xn--55qw42g": "whois.nic.xn--55qw42g",
+    "xn--55qx5d": "whois.nic.xn--55qx5d",
     "xn--5su34j936bgsg": "whois.nic.xn--5su34j936bgsg",
     "xn--5tzm5g": "whois.nic.xn--5tzm5g",
     "xn--6frz82g": "whois.nic.xn--6frz82g",
@@ -1429,11 +1429,11 @@
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     "xn--80aswg": "whois.nic.xn--80aswg",
     "xn--8y0a063a": "whois.nic.xn--8y0a063a",
-    "xn--90a3ac": null,
-    "xn--90ae": "whois.imena.bg",
-    "xn--90ais": "whois.cctld.by",
+    "xn--90a3ac": "whois.rnids.rs",
+    "xn--90ae": null,
+    "xn--90ais": null,
     "xn--9dbq2a": "whois.nic.xn--9dbq2a",
-    "xn--9et52u": "whois.gtld.knet.cn",
+    "xn--9et52u": "whois.nic.xn--9et52u",
     "xn--9krt00a": "whois.nic.xn--9krt00a",
     "xn--9t4b11yi5a": null,
     "xn--b4w605ferd": "whois.nic.xn--b4w605ferd",
@@ -1446,7 +1446,7 @@
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     "xn--czrs0t": "whois.nic.xn--czrs0t",
-    "xn--czru2d": "whois.nic.xn--czru2d",
+    "xn--czru2d": "whois.gtld.knet.cn",
     "xn--d1acj3b": "whois.nic.xn--d1acj3b",
     "xn--d1alf": "whois.marnet.mk",
     "xn--deba0ad": null,
@@ -1456,12 +1456,12 @@
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     "xn--fct429k": "whois.nic.xn--fct429k",
     "xn--fhbei": "whois.nic.xn--fhbei",
-    "xn--fiq228c5hs": "whois.teleinfo.cn",
-    "xn--fiq64b": "whois.gtld.knet.cn",
+    "xn--fiq228c5hs": "whois.nic.xn--fiq228c5hs",
+    "xn--fiq64b": "whois.nic.xn--fiq64b",
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     "xn--fiqz9s": null,
     "xn--fjq720a": "whois.nic.xn--fjq720a",
-    "xn--flw351e": "whois.nic.xn--flw351e",
+    "xn--flw351e": "whois.nic.google",
     "xn--fpcrj9c3d": "whois.registry.in",
     "xn--fzc2c9e2c": null,
     "xn--fzys8d69uvgm": "whois.nic.xn--fzys8d69uvgm",
@@ -1475,12 +1475,12 @@
     "xn--h2brj9c8c": "whois.registry.in",
     "xn--hgbk6aj7f53bba": null,
     "xn--hlcj6aya9esc7a": null,
-    "xn--hxt814e": "whois.gtld.knet.cn",
+    "xn--hxt814e": "whois.nic.xn--hxt814e",
     "xn--i1b6b1a6a2e": "whois.nic.xn--i1b6b1a6a2e",
     "xn--imr513n": "whois.nic.xn--imr513n",
     "xn--io0a7i": "whois.ngtld.cn",
     "xn--j1aef": "whois.nic.xn--j1aef",
-    "xn--j1amh": "whois.dotukr.com",
+    "xn--j1amh": null,
     "xn--j6w193g": "whois.hkirc.hk",
     "xn--jlq480n2rg": "whois.nic.xn--jlq480n2rg",
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@@ -1493,15 +1493,15 @@
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     "xn--l1acc": null,
-    "xn--lgbbat1ad8j": "whois.nic.dz",
-    "xn--mgb9awbf": "whois.registry.om",
+    "xn--lgbbat1ad8j": null,
+    "xn--mgb9awbf": null,
     "xn--mgba3a3ejt": "whois.nic.xn--mgba3a3ejt",
-    "xn--mgba3a4f16a": "whois.nic.ir",
+    "xn--mgba3a4f16a": null,
     "xn--mgba7c0bbn0a": "whois.nic.xn--mgba7c0bbn0a",
     "xn--mgbaakc7dvf": null,
     "xn--mgbaam7a8h": "whois.aeda.net.ae",
     "xn--mgbab2bd": "whois.nic.xn--mgbab2bd",
-    "xn--mgbah1a3hjkrd": null,
+    "xn--mgbah1a3hjkrd": "whois.nic.mr",
     "xn--mgbai9azgqp6j": null,
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@@ -1510,12 +1510,12 @@
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-    "xn--mgberp4a5d4ar": "whois.nic.net.sa",
-    "xn--mgbgu82a": "whois.registry.in",
+    "xn--mgberp4a5d4ar": null,
+    "xn--mgbgu82a": null,
     "xn--mgbi4ecexp": "whois.nic.xn--mgbi4ecexp",
     "xn--mgbpl2fh": null,
     "xn--mgbt3dhd": "whois.nic.xn--mgbt3dhd",
-    "xn--mgbtx2b": null,
+    "xn--mgbtx2b": "whois.cmc.iq",
     "xn--mgbx4cd0ab": "whois.mynic.my",
     "xn--mix891f": "whois.monic.mo",
     "xn--mk1bu44c": "whois.nic.xn--mk1bu44c",
@@ -1538,12 +1538,12 @@
     "xn--q7ce6a": "whois.nic.la",
     "xn--q9jyb4c": "whois.nic.google",
     "xn--qcka1pmc": "whois.nic.google",
-    "xn--qxa6a": null,
+    "xn--qxa6a": "whois.eu",
     "xn--qxam": null,
     "xn--rhqv96g": "whois.nic.xn--rhqv96g",
     "xn--rovu88b": "whois.nic.xn--rovu88b",
-    "xn--rvc1e0am3e": null,
-    "xn--s9brj9c": null,
+    "xn--rvc1e0am3e": "whois.registry.in",
+    "xn--s9brj9c": "whois.registry.in",
     "xn--ses554g": "whois.nic.xn--ses554g",
     "xn--t60b56a": "whois.nic.xn--t60b56a",
     "xn--tckwe": "whois.nic.xn--tckwe",
@@ -1560,11 +1560,11 @@
     "xn--xhq521b": "whois.ngtld.cn",
     "xn--xkc2al3hye2a": null,
     "xn--xkc2dl3a5ee0h": "whois.registry.in",
-    "xn--y9a3aq": "whois.amnic.net",
+    "xn--y9a3aq": null,
     "xn--yfro4i67o": "whois.zh.sgnic.sg",
-    "xn--ygbi2ammx": "whois.pnina.ps",
+    "xn--ygbi2ammx": null,
     "xn--zckzah": null,
-    "xn--zfr164b": "whois.conac.cn",
+    "xn--zfr164b": "whois.nic.xn--zfr164b",
     "xperia": null,
     "xxx": "whois.nic.xxx",
     "xyz": "whois.nic.xyz",
@@ -1572,14 +1572,14 @@
     "yahoo": "whois.nic.yahoo",
     "yamaxun": "whois.nic.yamaxun",
     "yandex": "whois.nic.yandex",
-    "ye": null,
+    "ye": "whois.y.net.ye",
     "yodobashi": "whois.nic.gmo",
     "yoga": "whois.nic.yoga",
     "yokohama": "whois.nic.yokohama",
     "you": "whois.nic.you",
-    "youtube": "whois.nic.youtube",
+    "youtube": "whois.nic.google",
     "yt": "whois.nic.yt",
-    "yun": "whois.teleinfo.cn",
+    "yun": "whois.nic.yun",
     "za": "whois.nic.za",
     "zappos": "whois.nic.zappos",
     "zara": "whois.nic.zara",