diff --git a/iana-domains-db.json b/iana-domains-db.json
index 318b6c98..65d01a8b 100644
--- a/iana-domains-db.json
+++ b/iana-domains-db.json
@@ -19,7 +19,7 @@
     "actor": "whois.nic.actor",
     "ad": "whois.nic.ad",
     "adac": null,
-    "ads": "whois.nic.ads",
+    "ads": "whois.nic.google",
     "adult": "whois.nic.adult",
     "ae": null,
     "aeg": "whois.nic.aeg",
@@ -49,7 +49,7 @@
     "alsace": "whois.nic.alsace",
     "alstom": "whois.nic.alstom",
     "am": "whois.nic.am",
-    "amazon": "whois.nic.amazon",
+    "amazon": null,
     "americanexpress": "whois.nic.americanexpress",
     "americanfamily": "whois.nic.americanfamily",
     "amex": "whois.nic.amex",
@@ -58,13 +58,13 @@
     "amsterdam": "whois.nic.amsterdam",
     "an": null,
     "analytics": "whois.nic.analytics",
-    "android": "whois.nic.android",
-    "anquan": "whois.nic.anquan",
+    "android": "whois.nic.google",
+    "anquan": "whois.teleinfo.cn",
     "anz": "whois.nic.anz",
     "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",
@@ -94,14 +94,14 @@
     "autos": "whois.nic.autos",
     "avianca": null,
     "aw": "whois.nic.aw",
-    "aws": null,
+    "aws": "whois.nic.aws",
     "ax": null,
     "axa": "whois.nic.axa",
     "az": null,
     "azure": null,
     "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",
@@ -127,7 +127,7 @@
     "beats": "whois.nic.beats",
     "beauty": "whois.nic.beauty",
     "beer": "whois.nic.beer",
-    "bentley": null,
+    "bentley": "whois.nic.bentley",
     "berlin": "whois.nic.berlin",
     "best": "whois.nic.best",
     "bestbuy": "whois.nic.bestbuy",
@@ -140,7 +140,7 @@
     "bible": "whois.nic.bible",
     "bid": "whois.nic.bid",
     "bike": "whois.nic.bike",
-    "bing": null,
+    "bing": "whois.nic.bing",
     "bingo": "whois.nic.bingo",
     "bio": "whois.nic.bio",
     "biz": "whois.nic.biz",
@@ -156,16 +156,16 @@
     "bm": "whois.nic.bm",
     "bms": "whois.nic.bms",
     "bmw": "whois.nic.bmw",
-    "bn": "whois.bnnic.bn",
+    "bn": null,
     "bnl": null,
     "bnpparibas": "whois.nic.bnpparibas",
-    "bo": "whois.nic.bo",
+    "bo": null,
     "boats": "whois.nic.boats",
     "boehringer": "whois.nic.boehringer",
     "bofa": "whois.nic.bofa",
     "bom": "whois.gtlds.nic.br",
     "bond": "whois.nic.bond",
-    "boo": "whois.nic.google",
+    "boo": "whois.nic.boo",
     "book": null,
     "booking": "whois.nic.booking",
     "boots": null,
@@ -190,18 +190,18 @@
     "build": "whois.nic.build",
     "builders": "whois.nic.builders",
     "business": "whois.nic.business",
-    "buy": null,
+    "buy": "whois.nic.buy",
     "buzz": "whois.nic.buzz",
     "bv": null,
     "bw": "whois.nic.net.bw",
     "by": "whois.cctld.by",
     "bz": null,
     "bzh": "whois.nic.bzh",
-    "ca": "whois.cira.ca",
+    "ca": null,
     "cab": "whois.nic.cab",
     "cafe": "whois.nic.cafe",
-    "cal": "whois.nic.cal",
-    "call": null,
+    "cal": "whois.nic.google",
+    "call": "whois.nic.call",
     "calvinklein": "whois.nic.calvinklein",
     "cam": "whois.nic.cam",
     "camera": "whois.nic.camera",
@@ -251,10 +251,10 @@
     "chintai": "whois.nic.chintai",
     "chloe": null,
     "christmas": "whois.nic.christmas",
-    "chrome": "whois.nic.google",
+    "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",
@@ -325,17 +325,17 @@
     "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",
+    "dclk": "whois.nic.dclk",
     "dds": "whois.nic.dds",
     "de": "whois.denic.de",
-    "deal": "whois.nic.deal",
+    "deal": null,
     "dealer": "whois.nic.dealer",
     "deals": "whois.nic.deals",
     "degree": "whois.nic.degree",
@@ -418,13 +418,13 @@
     "events": "whois.nic.events",
     "everbank": null,
     "exchange": "whois.nic.exchange",
-    "expert": null,
+    "expert": "whois.nic.expert",
     "exposed": "whois.nic.exposed",
     "express": "whois.nic.express",
     "extraspace": "whois.nic.extraspace",
     "fage": "whois.nic.fage",
     "fail": "whois.nic.fail",
-    "fairwinds": "whois.nic.fairwinds",
+    "fairwinds": null,
     "faith": "whois.nic.faith",
     "family": "whois.nic.family",
     "fan": "whois.nic.fan",
@@ -443,7 +443,7 @@
     "fido": "whois.nic.fido",
     "film": "whois.nic.film",
     "final": "whois.nic.final",
-    "finance": null,
+    "finance": "whois.nic.finance",
     "financial": "whois.nic.financial",
     "fire": null,
     "firestone": "whois.nic.firestone",
@@ -452,7 +452,7 @@
     "fishing": "whois.nic.fishing",
     "fit": "whois.nic.fit",
     "fitness": "whois.nic.fitness",
-    "fj": "www.whois.fj",
+    "fj": null,
     "fk": null,
     "flickr": "whois.nic.flickr",
     "flights": "whois.nic.flights",
@@ -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",
@@ -474,7 +474,7 @@
     "foundation": "whois.nic.foundation",
     "fox": "whois.nic.fox",
     "fr": "whois.nic.fr",
-    "free": null,
+    "free": "whois.nic.free",
     "fresenius": "whois.nic.fresenius",
     "frl": "whois.nic.frl",
     "frogans": "whois.nic.frogans",
@@ -512,36 +512,36 @@
     "ggee": "whois.nic.ggee",
     "gh": "whois.nic.gh",
     "gi": "whois.identitydigital.services",
-    "gift": "whois.nic.gift",
+    "gift": "whois.uniregistry.net",
     "gifts": "whois.nic.gifts",
     "gives": "whois.nic.gives",
     "giving": "whois.nic.giving",
     "gl": "whois.nic.gl",
     "glade": null,
     "glass": "whois.nic.glass",
-    "gle": "whois.nic.gle",
+    "gle": "whois.nic.google",
     "global": "whois.nic.global",
-    "globo": "whois.nic.globo",
+    "globo": "whois.gtlds.nic.br",
     "gm": null,
     "gmail": "whois.nic.google",
     "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",
     "golf": "whois.nic.golf",
-    "goo": "whois.nic.gmo",
+    "goo": "whois.nic.goo",
     "goodhands": null,
     "goodyear": "whois.nic.goodyear",
-    "goog": "whois.nic.google",
+    "goog": "whois.nic.goog",
     "google": "whois.nic.google",
     "gop": "whois.nic.gop",
     "got": null,
     "gov": "whois.nic.gov",
     "gp": "whois.nic.gp",
-    "gq": null,
+    "gq": "whois.dominio.gq",
     "gr": null,
     "grainger": "whois.nic.grainger",
     "graphics": "whois.nic.graphics",
@@ -555,12 +555,12 @@
     "gu": null,
     "guardian": null,
     "gucci": null,
-    "guge": "whois.nic.google",
+    "guge": "whois.nic.guge",
     "guide": "whois.nic.guide",
     "guitars": "whois.nic.guitars",
     "guru": "whois.nic.guru",
     "gw": null,
-    "gy": null,
+    "gy": "whois.registry.gy",
     "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": "whois.nic.google",
+    "here": "whois.nic.here",
     "hermes": "whois.nic.hermes",
     "hgtv": null,
     "hiphop": "whois.nic.hiphop",
-    "hisamitsu": "whois.nic.hisamitsu",
+    "hisamitsu": "whois.nic.gmo",
     "hitachi": "whois.nic.gmo",
     "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",
@@ -599,10 +599,10 @@
     "hot": "whois.nic.hot",
     "hoteles": null,
     "hotels": "whois.nic.hotels",
-    "hotmail": null,
+    "hotmail": "whois.nic.hotmail",
     "house": "whois.nic.house",
     "how": "whois.nic.how",
-    "hr": "whois.nic.hr",
+    "hr": "whois.dns.hr",
     "hsbc": "whois.nic.hsbc",
     "ht": "whois.nic.ht",
     "htc": null,
@@ -614,19 +614,19 @@
     "icbc": "whois.nic.icbc",
     "ice": "whois.nic.ice",
     "icu": "whois.nic.icu",
-    "id": "whois.id",
-    "ie": "whois.weare.ie",
+    "id": null,
+    "ie": null,
     "ieee": null,
     "ifm": "whois.nic.ifm",
     "iinet": null,
     "ikano": "whois.nic.ikano",
-    "il": null,
+    "il": "whois.isoc.org.il",
     "im": "whois.nic.im",
     "imamat": "whois.nic.imamat",
     "imdb": null,
     "immo": "whois.nic.immo",
     "immobilien": "whois.nic.immobilien",
-    "in": "whois.registry.in",
+    "in": null,
     "inc": "whois.nic.inc",
     "industries": "whois.nic.industries",
     "infiniti": "whois.nic.gmo",
@@ -643,10 +643,10 @@
     "investments": "whois.nic.investments",
     "io": "whois.nic.io",
     "ipiranga": "whois.nic.ipiranga",
-    "iq": "whois.cmc.iq",
+    "iq": null,
     "ir": "whois.nic.ir",
     "irish": "whois.nic.irish",
-    "is": "whois.isnic.is",
+    "is": "whois.nic.is",
     "iselect": null,
     "ismaili": "whois.nic.ismaili",
     "ist": "whois.nic.ist",
@@ -658,7 +658,7 @@
     "iwc": null,
     "jaguar": "whois.nic.jaguar",
     "java": "whois.nic.java",
-    "jcb": "whois.nic.jcb",
+    "jcb": "whois.nic.gmo",
     "jcp": null,
     "je": null,
     "jeep": "whois.nic.jeep",
@@ -673,12 +673,12 @@
     "jo": null,
     "jobs": null,
     "joburg": "whois.nic.joburg",
-    "jot": "whois.nic.jot",
+    "jot": null,
     "joy": null,
-    "jp": null,
+    "jp": "whois.jprs.jp",
     "jpmorgan": "whois.nic.jpmorgan",
     "jprs": "whois.nic.jprs",
-    "juegos": "whois.nic.juegos",
+    "juegos": "whois.uniregistry.net",
     "juniper": "whois.nic.juniper",
     "kaufen": "whois.nic.kaufen",
     "kddi": "whois.nic.kddi",
@@ -699,7 +699,7 @@
     "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,
@@ -710,7 +710,7 @@
     "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": "whois.nic.la",
@@ -740,14 +740,14 @@
     "lego": "whois.nic.lego",
     "lexus": "whois.nic.lexus",
     "lgbt": "whois.nic.lgbt",
-    "li": "whois.nic.li",
+    "li": null,
     "liaison": null,
     "lidl": "whois.nic.lidl",
     "life": "whois.nic.life",
     "lifeinsurance": "whois.nic.lifeinsurance",
     "lifestyle": "whois.nic.lifestyle",
     "lighting": "whois.nic.lighting",
-    "like": "whois.nic.like",
+    "like": null,
     "lilly": "whois.nic.lilly",
     "limited": "whois.nic.limited",
     "limo": "whois.nic.limo",
@@ -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": null,
@@ -792,9 +792,9 @@
     "maison": "whois.nic.maison",
     "makeup": "whois.nic.makeup",
     "man": "whois.nic.man",
-    "management": null,
+    "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",
@@ -811,9 +811,9 @@
     "me": "whois.nic.me",
     "med": null,
     "media": "whois.nic.media",
-    "meet": "whois.nic.meet",
+    "meet": "whois.nic.google",
     "melbourne": "whois.nic.melbourne",
-    "meme": "whois.nic.meme",
+    "meme": "whois.nic.google",
     "memorial": "whois.nic.memorial",
     "men": "whois.nic.men",
     "menu": "whois.nic.menu",
@@ -829,21 +829,21 @@
     "mini": "whois.nic.mini",
     "mint": "whois.nic.mint",
     "mit": "whois.nic.mit",
-    "mitsubishi": "whois.nic.gmo",
-    "mk": "whois.marnet.mk",
+    "mitsubishi": "whois.nic.mitsubishi",
+    "mk": null,
     "ml": "whois.nic.ml",
     "mlb": "whois.nic.mlb",
     "mls": "whois.nic.mls",
-    "mm": null,
+    "mm": "whois.registry.gov.mm",
     "mma": "whois.nic.mma",
     "mn": "whois.nic.mn",
-    "mo": null,
+    "mo": "whois.monic.mo",
     "mobi": "whois.nic.mobi",
     "mobile": "whois.nic.mobile",
     "mobily": null,
     "moda": "whois.nic.moda",
     "moe": "whois.nic.moe",
-    "moi": null,
+    "moi": "whois.nic.moi",
     "mom": "whois.nic.mom",
     "monash": "whois.nic.monash",
     "money": "whois.nic.money",
@@ -855,12 +855,12 @@
     "moscow": "whois.nic.moscow",
     "moto": "whois.nic.moto",
     "motorcycles": "whois.nic.motorcycles",
-    "mov": "whois.nic.mov",
+    "mov": "whois.nic.google",
     "movie": "whois.nic.movie",
     "movistar": null,
     "mp": null,
     "mq": "whois.mediaserv.net",
-    "mr": "whois.nic.mr",
+    "mr": null,
     "ms": "whois.nic.ms",
     "msd": "whois.nic.msd",
     "mt": null,
@@ -875,7 +875,7 @@
     "mv": null,
     "mw": "whois.nic.mw",
     "mx": null,
-    "my": "whois.mynic.my",
+    "my": null,
     "mz": "whois.nic.mz",
     "na": null,
     "nab": "whois.nic.nab",
@@ -886,7 +886,7 @@
     "natura": null,
     "navy": "whois.nic.navy",
     "nba": "whois.nic.nba",
-    "nc": "whois.nc",
+    "nc": null,
     "ne": null,
     "nec": "whois.nic.nec",
     "net": "whois.verisign-grs.com",
@@ -902,7 +902,7 @@
     "nexus": "whois.nic.google",
     "nf": "whois.nic.nf",
     "nfl": "whois.nic.nfl",
-    "ng": "whois.nic.net.ng",
+    "ng": null,
     "ngo": "whois.nic.ngo",
     "nhk": "whois.nic.nhk",
     "ni": null,
@@ -910,9 +910,9 @@
     "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,
+    "nl": "whois.domain-registry.nl",
     "no": null,
     "nokia": "whois.nic.nokia",
     "northwesternmutual": null,
@@ -925,13 +925,13 @@
     "nra": "whois.nic.nra",
     "nrw": "whois.nic.nrw",
     "ntt": "whois.nic.ntt",
-    "nu": "whois.iis.nu",
+    "nu": null,
     "nyc": "whois.nic.nyc",
     "nz": "whois.irs.net.nz",
     "obi": "whois.nic.obi",
     "observer": "whois.nic.observer",
     "off": null,
-    "office": "whois.nic.office",
+    "office": null,
     "okinawa": "whois.nic.okinawa",
     "olayan": "whois.nic.olayan",
     "olayangroup": "whois.nic.olayangroup",
@@ -957,12 +957,12 @@
     "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",
+    "pars": null,
     "partners": "whois.nic.partners",
     "parts": "whois.nic.parts",
     "party": "whois.nic.party",
@@ -976,7 +976,7 @@
     "pg": null,
     "ph": null,
     "pharmacy": "whois.nic.pharmacy",
-    "phd": "whois.nic.phd",
+    "phd": "whois.nic.google",
     "philips": "whois.nic.philips",
     "phone": "whois.nic.phone",
     "photo": "whois.nic.photo",
@@ -993,10 +993,10 @@
     "pink": "whois.nic.pink",
     "pioneer": null,
     "pizza": "whois.nic.pizza",
-    "pk": null,
+    "pk": "whois.pknic.net.pk",
     "pl": "whois.dns.pl",
     "place": "whois.nic.place",
-    "play": "whois.nic.google",
+    "play": "whois.nic.play",
     "playstation": "whois.nic.playstation",
     "plumbing": "whois.nic.plumbing",
     "plus": "whois.nic.plus",
@@ -1014,7 +1014,7 @@
     "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": "whois.nic.prof",
     "progressive": "whois.nic.progressive",
@@ -1061,7 +1061,7 @@
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     "rogers": "whois.nic.rogers",
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     "scb": "whois.nic.scb",
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@@ -1161,12 +1161,12 @@
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@@ -1581,12 +1581,12 @@
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