diff --git a/iana-domains-db.json b/iana-domains-db.json
index b6a3e98a..8c89141d 100644
--- a/iana-domains-db.json
+++ b/iana-domains-db.json
@@ -19,9 +19,9 @@
     "actor": "whois.nic.actor",
     "ad": "whois.nic.ad",
     "adac": null,
-    "ads": "whois.nic.ads",
+    "ads": "whois.nic.google",
     "adult": "whois.nic.adult",
-    "ae": "whois.nic.ae",
+    "ae": "whois.aeda.net.ae",
     "aeg": "whois.nic.aeg",
     "aero": "whois.aero",
     "aetna": "whois.nic.aetna",
@@ -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",
@@ -83,7 +83,7 @@
     "at": "whois.nic.at",
     "athleta": "whois.nic.athleta",
     "attorney": "whois.nic.attorney",
-    "au": "whois.auda.org.au",
+    "au": null,
     "auction": "whois.nic.auction",
     "audi": "whois.nic.audi",
     "audible": "whois.nic.audible",
@@ -101,7 +101,7 @@
     "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",
@@ -136,7 +136,7 @@
     "bg": null,
     "bh": "whois.nic.bh",
     "bharti": "whois.nic.bharti",
-    "bi": "whois.nic.bi",
+    "bi": "whois1.nic.bi",
     "bible": "whois.nic.bible",
     "bid": "whois.nic.bid",
     "bike": "whois.nic.bike",
@@ -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",
@@ -194,13 +194,13 @@
     "buzz": "whois.nic.buzz",
     "bv": null,
     "bw": "whois.nic.net.bw",
-    "by": null,
+    "by": "whois.cctld.by",
     "bz": null,
     "bzh": "whois.nic.bzh",
     "ca": null,
     "cab": "whois.nic.cab",
     "cafe": "whois.nic.cafe",
-    "cal": "whois.nic.cal",
+    "cal": "whois.nic.google",
     "call": "whois.nic.call",
     "calvinklein": "whois.nic.calvinklein",
     "cam": "whois.nic.cam",
@@ -231,19 +231,19 @@
     "cbn": "whois.nic.cbn",
     "cbre": "whois.nic.cbre",
     "cbs": null,
-    "cc": "ccwhois.verisign-grs.com",
+    "cc": "whois.nic.cc",
     "cd": "whois.nic.cd",
     "ceb": null,
     "center": "whois.nic.center",
     "ceo": "whois.nic.ceo",
     "cern": "whois.nic.cern",
-    "cf": null,
+    "cf": "whois.dot.cf",
     "cfa": "whois.nic.cfa",
     "cfd": "whois.nic.cfd",
     "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.chrome",
     "chrysler": null,
     "church": "whois.nic.church",
-    "ci": "whois.nic.ci",
+    "ci": null,
     "cipriani": "whois.nic.cipriani",
     "circle": "whois.nic.circle",
     "cisco": "whois.nic.cisco",
@@ -264,7 +264,7 @@
     "city": "whois.nic.city",
     "cityeats": null,
     "ck": null,
-    "cl": null,
+    "cl": "whois.nic.cl",
     "claims": "whois.nic.claims",
     "cleaning": "whois.nic.cleaning",
     "click": "whois.nic.click",
@@ -281,7 +281,7 @@
     "codes": "whois.nic.codes",
     "coffee": "whois.nic.coffee",
     "college": "whois.nic.college",
-    "cologne": "whois.nic.cologne",
+    "cologne": "whois.ryce-rsp.com",
     "com": "whois.verisign-grs.com",
     "comcast": null,
     "commbank": "whois.nic.commbank",
@@ -325,14 +325,14 @@
     "cyou": "whois.nic.cyou",
     "cz": "whois.nic.cz",
     "dabur": null,
-    "dad": "whois.nic.dad",
+    "dad": "whois.nic.google",
     "dance": "whois.nic.dance",
     "data": "whois.nic.data",
     "date": "whois.nic.date",
     "dating": "whois.nic.dating",
     "datsun": "whois.nic.gmo",
-    "day": "whois.nic.google",
-    "dclk": "whois.nic.google",
+    "day": "whois.nic.day",
+    "dclk": "whois.nic.dclk",
     "dds": "whois.nic.dds",
     "de": "whois.denic.de",
     "deal": "whois.nic.deal",
@@ -343,12 +343,12 @@
     "dell": "whois.nic.dell",
     "deloitte": "whois.nic.deloitte",
     "delta": "whois.nic.delta",
-    "democrat": null,
+    "democrat": "whois.nic.democrat",
     "dental": "whois.nic.dental",
     "dentist": "whois.nic.dentist",
     "desi": "whois.nic.desi",
     "design": "whois.nic.design",
-    "dev": "whois.nic.dev",
+    "dev": "whois.nic.google",
     "dhl": "whois.nic.dhl",
     "diamonds": "whois.nic.diamonds",
     "diet": "whois.nic.diet",
@@ -360,11 +360,11 @@
     "dish": "whois.nic.dish",
     "diy": "whois.nic.diy",
     "dj": null,
-    "dk": "whois.punktum.dk",
-    "dm": "whois.dmdomains.dm",
+    "dk": "whois.nic.dk",
+    "dm": "whois.nic.dm",
     "dnp": "whois.nic.dnp",
     "do": "whois.nic.do",
-    "docs": "whois.nic.docs",
+    "docs": "whois.nic.google",
     "doctor": "whois.nic.doctor",
     "dodge": null,
     "dog": "whois.nic.dog",
@@ -373,7 +373,7 @@
     "doosan": null,
     "dot": "whois.nic.dot",
     "download": "whois.nic.download",
-    "drive": "whois.nic.drive",
+    "drive": "whois.nic.google",
     "dtv": "whois.nic.dtv",
     "dubai": "whois.nic.dubai",
     "duck": null,
@@ -383,19 +383,19 @@
     "durban": "whois.nic.durban",
     "dvag": "whois.nic.dvag",
     "dvr": "whois.nic.dvr",
-    "dz": null,
+    "dz": "whois.nic.dz",
     "earth": "whois.nic.earth",
-    "eat": null,
-    "ec": "whois.nic.ec",
+    "eat": "whois.nic.google",
+    "ec": null,
     "eco": "whois.nic.eco",
     "edeka": "whois.nic.edeka",
-    "edu": null,
+    "edu": "whois.educause.edu",
     "education": "whois.nic.education",
     "ee": "whois.tld.ee",
     "eg": null,
     "eh": null,
     "email": "whois.nic.email",
-    "emerck": null,
+    "emerck": "whois.nic.emerck",
     "energy": "whois.nic.energy",
     "engineer": "whois.nic.engineer",
     "engineering": "whois.nic.engineering",
@@ -412,7 +412,7 @@
     "esurance": null,
     "et": null,
     "etisalat": null,
-    "eu": "whois.eu",
+    "eu": null,
     "eurovision": "whois.nic.eurovision",
     "eus": "whois.nic.eus",
     "events": "whois.nic.events",
@@ -437,7 +437,7 @@
     "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",
@@ -463,7 +463,7 @@
     "fly": "whois.nic.google",
     "fm": "whois.nic.fm",
     "fo": "whois.nic.fo",
-    "foo": "whois.nic.foo",
+    "foo": "whois.nic.google",
     "food": "whois.nic.food",
     "foodnetwork": null,
     "football": "whois.nic.football",
@@ -507,11 +507,11 @@
     "gent": "whois.nic.gent",
     "genting": "whois.nic.genting",
     "george": "whois.nic.george",
-    "gf": "whois.mediaserv.net",
+    "gf": null,
     "gg": "whois.gg",
     "ggee": "whois.nic.ggee",
     "gh": null,
-    "gi": null,
+    "gi": "whois.identitydigital.services",
     "gift": "whois.nic.gift",
     "gifts": "whois.nic.gifts",
     "gives": "whois.nic.gives",
@@ -560,7 +560,7 @@
     "guitars": "whois.nic.guitars",
     "guru": "whois.nic.guru",
     "gw": null,
-    "gy": "whois.registry.gy",
+    "gy": null,
     "hair": "whois.nic.hair",
     "hamburg": "whois.nic.hamburg",
     "hangout": "whois.nic.google",
@@ -572,16 +572,16 @@
     "healthcare": "whois.nic.healthcare",
     "help": "whois.nic.help",
     "helsinki": "whois.nic.helsinki",
-    "here": null,
+    "here": "whois.nic.google",
     "hermes": "whois.nic.hermes",
     "hgtv": null,
     "hiphop": "whois.nic.hiphop",
-    "hisamitsu": "whois.nic.hisamitsu",
-    "hitachi": "whois.nic.gmo",
+    "hisamitsu": "whois.nic.gmo",
+    "hitachi": "whois.nic.hitachi",
     "hiv": "whois.nic.hiv",
-    "hk": null,
+    "hk": "whois.hkirc.hk",
     "hkt": "whois.nic.hkt",
-    "hm": null,
+    "hm": "whois.registry.hm",
     "hn": "whois.nic.hn",
     "hockey": "whois.nic.hockey",
     "holdings": "whois.nic.holdings",
@@ -601,8 +601,8 @@
     "hotels": "whois.nic.hotels",
     "hotmail": "whois.nic.hotmail",
     "house": "whois.nic.house",
-    "how": null,
-    "hr": "whois.nic.hr",
+    "how": "whois.nic.google",
+    "hr": "whois.dns.hr",
     "hsbc": "whois.nic.hsbc",
     "ht": "whois.nic.ht",
     "htc": null,
@@ -614,8 +614,8 @@
     "icbc": "whois.nic.icbc",
     "ice": "whois.nic.ice",
     "icu": "whois.nic.icu",
-    "id": "whois.id",
-    "ie": "whois.weare.ie",
+    "id": null,
+    "ie": null,
     "ieee": "whois.nic.ieee",
     "ifm": "whois.nic.ifm",
     "iinet": null,
@@ -626,7 +626,7 @@
     "imdb": "whois.nic.imdb",
     "immo": "whois.nic.immo",
     "immobilien": "whois.nic.immobilien",
-    "in": null,
+    "in": "whois.registry.in",
     "inc": "whois.nic.inc",
     "industries": "whois.nic.industries",
     "infiniti": "whois.nic.gmo",
@@ -636,14 +636,14 @@
     "institute": "whois.nic.institute",
     "insurance": "whois.nic.insurance",
     "insure": "whois.nic.insure",
-    "int": null,
+    "int": "whois.iana.org",
     "intel": null,
     "international": "whois.nic.international",
     "intuit": "whois.nic.intuit",
     "investments": "whois.nic.investments",
     "io": "whois.nic.io",
     "ipiranga": "whois.nic.ipiranga",
-    "iq": null,
+    "iq": "whois.cmc.iq",
     "ir": "whois.nic.ir",
     "irish": "whois.nic.irish",
     "is": "whois.nic.is",
@@ -658,7 +658,7 @@
     "iwc": null,
     "jaguar": "whois.nic.jaguar",
     "java": "whois.nic.java",
-    "jcb": "whois.nic.gmo",
+    "jcb": "whois.nic.jcb",
     "jcp": null,
     "je": "whois.je",
     "jeep": "whois.nic.jeep",
@@ -675,17 +675,17 @@
     "joburg": "whois.nic.joburg",
     "jot": "whois.nic.jot",
     "joy": "whois.nic.joy",
-    "jp": "whois.jprs.jp",
+    "jp": null,
     "jpmorgan": "whois.nic.jpmorgan",
     "jprs": "whois.nic.jprs",
-    "juegos": "whois.uniregistry.net",
+    "juegos": "whois.nic.juegos",
     "juniper": "whois.nic.juniper",
     "kaufen": "whois.nic.kaufen",
     "kddi": "whois.nic.kddi",
     "ke": null,
     "kerryhotels": "whois.nic.kerryhotels",
     "kerrylogistics": "whois.nic.kerrylogistics",
-    "kerryproperties": "whois.nic.kerryproperties",
+    "kerryproperties": null,
     "kfh": "whois.nic.kfh",
     "kg": "whois.kg",
     "kh": null,
@@ -695,11 +695,11 @@
     "kim": "whois.nic.kim",
     "kinder": null,
     "kindle": "whois.nic.kindle",
-    "kitchen": "whois.nic.kitchen",
+    "kitchen": null,
     "kiwi": "whois.nic.kiwi",
     "km": null,
     "kn": "whois.nic.kn",
-    "koeln": "whois.ryce-rsp.com",
+    "koeln": "whois.nic.koeln",
     "komatsu": "whois.nic.komatsu",
     "kosher": "whois.nic.kosher",
     "kp": null,
@@ -710,10 +710,10 @@
     "kred": "whois.nic.kred",
     "kuokgroup": "whois.nic.kuokgroup",
     "kw": "whois.nic.kw",
-    "ky": null,
+    "ky": "whois.kyregistry.ky",
     "kyoto": "whois.nic.kyoto",
     "kz": "whois.nic.kz",
-    "la": null,
+    "la": "whois.nic.la",
     "lacaixa": "whois.nic.lacaixa",
     "ladbrokes": null,
     "lamborghini": "whois.nic.lamborghini",
@@ -721,21 +721,21 @@
     "lancaster": "whois.nic.lancaster",
     "lancia": null,
     "lancome": null,
-    "land": "whois.nic.land",
-    "landrover": "whois.nic.landrover",
+    "land": null,
+    "landrover": null,
     "lanxess": "whois.nic.lanxess",
-    "lasalle": "whois.nic.lasalle",
+    "lasalle": null,
     "lat": "whois.nic.lat",
     "latino": "whois.nic.latino",
     "latrobe": "whois.nic.latrobe",
     "law": "whois.nic.law",
     "lawyer": "whois.nic.lawyer",
-    "lb": null,
+    "lb": "whois.lbdr.org.lb",
     "lc": null,
-    "lds": "whois.nic.lds",
-    "lease": "whois.nic.lease",
+    "lds": null,
+    "lease": null,
     "leclerc": "whois.nic.leclerc",
-    "lefrak": "whois.nic.lefrak",
+    "lefrak": null,
     "legal": "whois.nic.legal",
     "lego": "whois.nic.lego",
     "lexus": "whois.nic.lexus",
@@ -746,20 +746,20 @@
     "life": "whois.nic.life",
     "lifeinsurance": "whois.nic.lifeinsurance",
     "lifestyle": "whois.nic.lifestyle",
-    "lighting": "whois.nic.lighting",
+    "lighting": null,
     "like": "whois.nic.like",
     "lilly": "whois.nic.lilly",
     "limited": "whois.nic.limited",
     "limo": "whois.nic.limo",
     "lincoln": "whois.nic.lincoln",
     "linde": null,
-    "link": "whois.nic.link",
+    "link": "whois.uniregistry.net",
     "lipsy": "whois.nic.lipsy",
     "live": "whois.nic.live",
     "living": "whois.nic.living",
     "lixil": null,
     "lk": null,
-    "llc": "whois.nic.llc",
+    "llc": null,
     "llp": "whois.nic.llp",
     "loan": "whois.nic.loan",
     "loans": "whois.nic.loans",
@@ -776,8 +776,8 @@
     "lr": null,
     "ls": "whois.nic.ls",
     "lt": null,
-    "ltd": "whois.nic.ltd",
-    "ltda": "whois.nic.ltda",
+    "ltd": null,
+    "ltda": null,
     "lu": null,
     "lundbeck": "whois.nic.lundbeck",
     "lupin": null,
@@ -794,7 +794,7 @@
     "man": "whois.nic.man",
     "management": "whois.nic.management",
     "mango": "whois.nic.mango",
-    "map": "whois.nic.map",
+    "map": "whois.nic.google",
     "market": "whois.nic.market",
     "marketing": "whois.nic.marketing",
     "markets": "whois.nic.markets",
@@ -828,17 +828,17 @@
     "mil": null,
     "mini": "whois.nic.mini",
     "mint": "whois.nic.mint",
-    "mit": "whois.nic.mit",
+    "mit": null,
     "mitsubishi": "whois.nic.mitsubishi",
     "mk": null,
     "ml": "whois.nic.ml",
     "mlb": "whois.nic.mlb",
     "mls": "whois.nic.mls",
-    "mm": "whois.registry.gov.mm",
+    "mm": null,
     "mma": "whois.nic.mma",
-    "mn": "whois.nic.mn",
-    "mo": "whois.monic.mo",
-    "mobi": "whois.nic.mobi",
+    "mn": null,
+    "mo": null,
+    "mobi": null,
     "mobile": "whois.nic.mobile",
     "mobily": null,
     "moda": "whois.nic.moda",
@@ -851,12 +851,12 @@
     "montblanc": null,
     "mopar": null,
     "mormon": "whois.nic.mormon",
-    "mortgage": "whois.nic.mortgage",
+    "mortgage": null,
     "moscow": "whois.nic.moscow",
     "moto": "whois.nic.moto",
     "motorcycles": "whois.nic.motorcycles",
     "mov": "whois.nic.mov",
-    "movie": "whois.nic.movie",
+    "movie": null,
     "movistar": null,
     "mp": null,
     "mq": "whois.mediaserv.net",
@@ -874,8 +874,8 @@
     "mutuelle": null,
     "mv": null,
     "mw": "whois.nic.mw",
-    "mx": null,
-    "my": null,
+    "mx": "whois.mx",
+    "my": "whois.mynic.my",
     "mz": "whois.nic.mz",
     "na": null,
     "nab": "whois.nic.nab",
@@ -889,7 +889,7 @@
     "nc": "whois.nc",
     "ne": null,
     "nec": "whois.nic.nec",
-    "net": null,
+    "net": "whois.verisign-grs.com",
     "netbank": "whois.nic.netbank",
     "netflix": "whois.nic.netflix",
     "network": "whois.nic.network",
@@ -898,7 +898,7 @@
     "newholland": null,
     "news": "whois.nic.news",
     "next": "whois.nic.next",
-    "nextdirect": "whois.nic.nextdirect",
+    "nextdirect": null,
     "nexus": "whois.nic.google",
     "nf": "whois.nic.nf",
     "nfl": "whois.nic.nfl",
@@ -912,22 +912,22 @@
     "ninja": "whois.nic.ninja",
     "nissan": "whois.nic.gmo",
     "nissay": "whois.nic.nissay",
-    "nl": null,
-    "no": null,
+    "nl": "whois.domain-registry.nl",
+    "no": "whois.norid.no",
     "nokia": "whois.nic.nokia",
     "northwesternmutual": null,
     "norton": "whois.nic.norton",
     "now": "whois.nic.now",
     "nowruz": "whois.nic.nowruz",
-    "nowtv": "whois.nic.nowtv",
+    "nowtv": null,
     "np": null,
     "nr": null,
     "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,
@@ -936,30 +936,30 @@
     "olayan": "whois.nic.olayan",
     "olayangroup": "whois.nic.olayangroup",
     "oldnavy": null,
-    "ollo": "whois.nic.ollo",
-    "om": "whois.registry.om",
+    "ollo": null,
+    "om": null,
     "omega": "whois.nic.omega",
     "one": "whois.nic.one",
     "ong": "whois.nic.ong",
-    "onl": "whois.nic.onl",
+    "onl": null,
     "online": "whois.nic.online",
     "onyourside": null,
     "ooo": "whois.nic.ooo",
     "open": "whois.nic.open",
     "oracle": "whois.nic.oracle",
     "orange": "whois.nic.orange",
-    "org": null,
+    "org": "whois.publicinterestregistry.org",
     "organic": "whois.nic.organic",
     "orientexpress": null,
     "origins": "whois.nic.origins",
     "osaka": "whois.nic.osaka",
     "otsuka": "whois.nic.otsuka",
-    "ott": "whois.nic.ott",
+    "ott": null,
     "ovh": "whois.nic.ovh",
     "pa": null,
-    "page": "whois.nic.google",
+    "page": "whois.nic.page",
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-    "panasonic": "whois.nic.gmo",
+    "panasonic": "whois.nic.panasonic",
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@@ -969,14 +969,14 @@
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     "pay": "whois.nic.pay",
     "pccw": "whois.nic.pccw",
-    "pe": "kero.yachay.pe",
+    "pe": "whois.nic.pe",
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     "pharmacy": "whois.nic.pharmacy",
-    "phd": "whois.nic.phd",
+    "phd": "whois.nic.google",
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     "phone": "whois.nic.phone",
     "photo": "whois.nic.photo",
@@ -993,13 +993,13 @@
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-    "pk": null,
-    "pl": "whois.dns.pl",
-    "place": "whois.nic.place",
-    "play": "whois.nic.play",
+    "pk": "whois.pknic.net.pk",
+    "pl": null,
+    "place": null,
+    "play": "whois.nic.google",
     "playstation": "whois.nic.playstation",
     "plumbing": "whois.nic.plumbing",
-    "plus": "whois.nic.plus",
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@@ -1015,9 +1015,9 @@
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     "prod": "whois.nic.prod",
-    "productions": "whois.nic.productions",
-    "prof": "whois.nic.google",
-    "progressive": "whois.nic.progressive",
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+    "prof": "whois.nic.prof",
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     "property": "whois.nic.property",
@@ -1047,8 +1047,8 @@
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     "redumbrella": "whois.nic.redumbrella",
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-    "reise": "whois.nic.reise",
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@@ -1061,21 +1061,21 @@
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     "restaurant": "whois.nic.restaurant",
     "review": "whois.nic.review",
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     "ricoh": "whois.nic.ricoh",
     "rightathome": null,
     "ril": "whois.nic.ril",
-    "rio": "whois.nic.rio",
+    "rio": "whois.gtlds.nic.br",
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+    "ro": "whois.rotld.ro",
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-    "rocks": "whois.nic.rocks",
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     "rodeo": "whois.nic.rodeo",
-    "rogers": "whois.nic.rogers",
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     "room": "whois.nic.room",
     "rs": "whois.rnids.rs",
     "rsvp": "whois.nic.google",
@@ -1100,7 +1100,7 @@
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-    "sarl": "whois.nic.sarl",
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@@ -1114,7 +1114,7 @@
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     "scholarships": "whois.nic.scholarships",
     "school": "whois.nic.school",
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@@ -1128,19 +1128,19 @@
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     "select": "whois.nic.select",
-    "sener": "whois.nic.sener",
-    "services": "whois.nic.services",
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     "sex": "whois.nic.sex",
     "sexy": "whois.nic.sexy",
     "sfr": "whois.nic.sfr",
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+    "sg": "whois.sgnic.sg",
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     "shangrila": "whois.nic.shangrila",
     "sharp": "whois.nic.sharp",
-    "shaw": "whois.afilias-srs.net",
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@@ -1153,11 +1153,11 @@
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     "singles": "whois.nic.singles",
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@@ -1170,7 +1170,7 @@
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     "so": "whois.nic.so",
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@@ -1179,7 +1179,7 @@
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     "sony": "whois.nic.sony",
-    "soy": "whois.nic.soy",
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     "xn--vhquv": "whois.nic.xn--vhquv",
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@@ -1561,10 +1561,10 @@
     "xn--xkc2al3hye2a": null,
     "xn--xkc2dl3a5ee0h": "whois.registry.in",
     "xn--y9a3aq": "whois.amnic.net",
-    "xn--yfro4i67o": null,
+    "xn--yfro4i67o": "whois.zh.sgnic.sg",
     "xn--ygbi2ammx": "whois.pnina.ps",
     "xn--zckzah": null,
-    "xn--zfr164b": "whois.nic.xn--zfr164b",
+    "xn--zfr164b": "whois.conac.cn",
     "xperia": null,
     "xxx": "whois.nic.xxx",
     "xyz": "whois.nic.xyz",
@@ -1573,7 +1573,7 @@
     "yamaxun": "whois.nic.yamaxun",
     "yandex": "whois.nic.yandex",
     "ye": "whois.y.net.ye",
-    "yodobashi": "whois.nic.yodobashi",
+    "yodobashi": "whois.nic.gmo",
     "yoga": "whois.nic.yoga",
     "yokohama": "whois.nic.yokohama",
     "you": "whois.nic.you",