Use whois query to ensure domain validity

5 files changed, 1114 insertions, 4 deletions

diff --git a/Cargo.lock b/Cargo.lock
index c6acc8a..8acab35 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -24,6 +24,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
 name = "ansi_term"
 version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -198,7 +207,7 @@ dependencies = [
  "num-integer",
  "num-traits",
  "serde",
- "time",
+ "time 0.1.43",
  "winapi",
 ]
 
@@ -289,6 +298,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "data-encoding"
+version = "2.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ee2393c4a91429dffb4bedf19f4d6abf27d8a732c8ce4980305d782e5426d57"
+
+[[package]]
 name = "digest"
 version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -335,12 +350,56 @@ dependencies = [
 ]
 
 [[package]]
+name = "educe"
+version = "0.4.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c07b7cc9cd8c08d10db74fca3b20949b9b6199725c04a0cce6d543496098fcac"
+dependencies = [
+ "enum-ordinalize",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
 name = "either"
 version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
 [[package]]
+name = "endian-type"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c34f04666d835ff5d62e058c3995147c06f42fe86ff053337632bca83e42702d"
+
+[[package]]
+name = "enum-as-inner"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21cdad81446a7f7dc43f6a77409efeb9733d2fa65553efef6018ef257c959b73"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "enum-ordinalize"
+version = "3.1.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2170fc0efee383079a8bdd05d6ea2a184d2a0f07a1c1dcabdb2fd5e9f24bc36c"
+dependencies = [
+ "num-bigint",
+ "num-traits",
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "syn",
+]
+
+[[package]]
 name = "event-listener"
 version = "2.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -414,6 +473,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "futures-io"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc4045962a5a5e935ee2fdedaa4e08284547402885ab326734432bed5d12966b"
+
+[[package]]
 name = "futures-sink"
 version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -436,6 +501,7 @@ dependencies = [
  "futures-task",
  "pin-project-lite",
  "pin-utils",
+ "slab",
 ]
 
 [[package]]
@@ -479,7 +545,7 @@ dependencies = [
 
 [[package]]
 name = "hdt-api"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "addr",
  "anyhow",
@@ -504,6 +570,8 @@ dependencies = [
  "tower-http",
  "tracing-subscriber",
  "uuid",
+ "whois-rust",
+ "whoisthere",
 ]
 
 [[package]]
@@ -651,6 +719,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "ipnet"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "879d54834c8c76457ef4293a689b2a8c59b076067ad77b15efafbb05f92a592b"
+
+[[package]]
 name = "itertools"
 version = "0.10.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -801,6 +875,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "nibble_vec"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77a5d83df9f36fe23f0c3648c6bbb8b0298bb5f1939c8f2704431371f4b84d43"
+dependencies = [
+ "smallvec",
+]
+
+[[package]]
 name = "nom"
 version = "7.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -820,6 +903,17 @@ dependencies = [
 ]
 
 [[package]]
+name = "num-bigint"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f93ab6289c7b344a8a9f60f88d80aa20032336fe78da341afc91c8a2341fc75f"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
 name = "num-integer"
 version = "0.1.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -849,6 +943,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "num_threads"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2819ce041d2ee131036f4fc9d6ae7ae125a3a40e97ba64d04fe799ad9dabbb44"
+dependencies = [
+ "libc",
+]
+
+[[package]]
 name = "once_cell"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1037,6 +1140,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "radix_trie"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c069c179fcdc6a2fe24d8d18305cf085fdbd4f922c041943e203685d6a1c58fd"
+dependencies = [
+ "endian-type",
+ "nibble_vec",
+]
+
+[[package]]
 name = "rand"
 version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1087,6 +1200,23 @@ dependencies = [
 ]
 
 [[package]]
+name = "regex"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c4eb3267174b8c6c2f654116623910a0fef09c4753f8dd83db29c48a0df988b"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
+
+[[package]]
 name = "remove_dir_all"
 version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1096,6 +1226,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "rustc_version"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+dependencies = [
+ "semver",
+]
+
+[[package]]
 name = "ryu"
 version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1141,6 +1280,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "semver"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2333e6df6d6598f2b1974829f853c2b4c5f4a6e503c10af918081aa6f8564e1"
+
+[[package]]
 name = "serde"
 version = "1.0.137"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1224,6 +1369,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "slab"
+version = "0.4.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4614a76b2a8be0058caa9dbbaf66d988527d86d003c11a94fbd335d7661edcef"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
 name = "smallvec"
 version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1429,6 +1583,16 @@ dependencies = [
 ]
 
 [[package]]
+name = "time"
+version = "0.3.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72c91f41dcb2f096c05f0873d667dceec1087ce5bcf984ec8ffb19acddbb3217"
+dependencies = [
+ "libc",
+ "num_threads",
+]
+
+[[package]]
 name = "tinyvec"
 version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1618,6 +1782,51 @@ dependencies = [
 ]
 
 [[package]]
+name = "trust-dns-client"
+version = "0.21.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6d9ba1c6079f6f9b4664e482db1700bd53d2ee77b1c9752c1d7a66c0c8bda99"
+dependencies = [
+ "cfg-if",
+ "data-encoding",
+ "futures-channel",
+ "futures-util",
+ "lazy_static",
+ "log",
+ "radix_trie",
+ "rand",
+ "thiserror",
+ "time 0.3.11",
+ "tokio",
+ "trust-dns-proto",
+]
+
+[[package]]
+name = "trust-dns-proto"
+version = "0.21.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c31f240f59877c3d4bb3b3ea0ec5a6a0cff07323580ff8c7a605cd7d08b255d"
+dependencies = [
+ "async-trait",
+ "cfg-if",
+ "data-encoding",
+ "enum-as-inner",
+ "futures-channel",
+ "futures-io",
+ "futures-util",
+ "idna",
+ "ipnet",
+ "lazy_static",
+ "log",
+ "rand",
+ "smallvec",
+ "thiserror",
+ "tinyvec",
+ "tokio",
+ "url",
+]
+
+[[package]]
 name = "try-lock"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1685,6 +1894,41 @@ dependencies = [
 ]
 
 [[package]]
+name = "validators"
+version = "0.24.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a608a36865089e56a81675b11129cfac8f410d1afcf52f07e1662af75634c691"
+dependencies = [
+ "idna",
+ "validators-derive",
+ "validators-options",
+]
+
+[[package]]
+name = "validators-derive"
+version = "0.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a677309c30754937e1164d730b8b3fcf6a7fbc26fcfe141c52b06aeae4743b9"
+dependencies = [
+ "educe",
+ "enum-ordinalize",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "validators-options",
+]
+
+[[package]]
+name = "validators-options"
+version = "0.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad273b68c2810b6bc92a6df4008505849bf02d5723381156871e9729616d2523"
+dependencies = [
+ "educe",
+ "enum-ordinalize",
+]
+
+[[package]]
 name = "valuable"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1799,6 +2043,29 @@ dependencies = [
 ]
 
 [[package]]
+name = "whois-rust"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf31968a3b3d30e115707b8857f0a4e19cc67235ad29f659c91dd4713213c5d6"
+dependencies = [
+ "once_cell",
+ "regex",
+ "serde_json",
+ "trust-dns-client",
+ "validators",
+]
+
+[[package]]
+name = "whoisthere"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dea492e2aa1beb56ebcd94341685bb8641181c45ebd33548f3249b558ca59113"
+dependencies = [
+ "chrono",
+ "regex",
+]
+
+[[package]]
 name = "winapi"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
diff --git a/Cargo.toml b/Cargo.toml
index 410b520..0658f47 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hdt-api"
-version = "0.1.3"
+version = "0.1.4"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -30,5 +30,7 @@ tower-http = { version = "0.3.3", features = ["cors", "trace"] }
 tracing-subscriber = "0.3.11"
 # uuid v1.0.0 is out, but it breaks sqlx... we just have to wait for sqlx to release v0.6
 uuid = { version = "0.8.2", features = ["serde", "v4"] }
+whois-rust = "1.5.0"
+whoisthere = "0.1.3"
 
 [features]
diff --git a/data/whois-servers.json b/data/whois-servers.json
new file mode 100644
index 0000000..651e88d
--- /dev/null
+++ b/data/whois-servers.json
@@ -0,0 +1,793 @@
+{
+  "br.com": "whois.centralnic.net",
+  "cn.com": "whois.centralnic.net",
+  "de.com": "whois.centralnic.net",
+  "eu.com": "whois.centralnic.net",
+  "gb.com": "whois.centralnic.net",
+  "gb.net": "whois.centralnic.net",
+  "gr.com": "whois.centralnic.net",
+  "hu.com": "whois.centralnic.net",
+  "in.net": "whois.centralnic.net",
+  "jpn.com": "whois.centralnic.net",
+  "no.com": "whois.centralnic.net",
+  "qc.com": "whois.centralnic.net",
+  "ru.com": "whois.centralnic.net",
+  "sa.com": "whois.centralnic.net",
+  "se.com": "whois.centralnic.net",
+  "se.net": "whois.centralnic.net",
+  "uk.com": "whois.centralnic.net",
+  "uk.net": "whois.centralnic.net",
+  "us.com": "whois.centralnic.net",
+  "uy.com": "whois.centralnic.net",
+  "web.com": "whois.centralnic.net",
+  "za.com": "whois.centralnic.net",
+  "com": {
+    "host": "whois.verisign-grs.com",
+    "query": "DOMAIN $addr\r\n"
+  },
+
+  "za.net": "whois.za.net",
+  "net": {
+    "host": "whois.verisign-grs.com",
+    "query": "DOMAIN $addr\r\n"
+  },
+
+  "eu.org": "whois.eu.org",
+  "za.org": "whois.za.org",
+  "org": "whois.pir.org",
+
+  "edu": "whois.educause.edu",
+  "gov": "whois.dotgov.gov",
+  "int": "whois.iana.org",
+  "mil": null,
+
+  "e164.arpa": "whois.ripe.net",
+  "in-addr.arpa": null,
+  "arpa": "whois.iana.org",
+
+  "aero": "whois.aero",
+  "asia": "whois.nic.asia",
+  "biz": "whois.biz",
+  "cat": "whois.cat",
+  "coop": "whois.nic.coop",
+  "info": "whois.afilias.net",
+  "jobs": "jobswhois.verisign-grs.com",
+  "mobi": "whois.dotmobiregistry.net",
+  "museum": "whois.museum",
+  "name": "whois.nic.name",
+  "post": "whois.dotpostregistry.net",
+  "pro": "whois.afilias.net",
+  "tel": "whois.nic.tel",
+  "travel": "whois.nic.travel",
+  "xxx": "whois.nic.xxx",
+
+  "academy": "whois.nic.academy",
+  "accountants": "whois.nic.accountants",
+  "actor": "whois.nic.actor",
+  "agency": "whois.nic.agency",
+  "airforce": "whois.nic.airforce",
+  "apartments": "whois.nic.apartments",
+  "app": "whois.nic.google",
+  "archi": "whois.nic.archi",
+  "army": "whois.nic.army",
+  "associates": "whois.nic.associates",
+  "attorney": "whois.nic.attorney",
+  "auction": "whois.nic.auction",
+  "audio": "whois.nic.audio",
+  "autos": "whois.nic.autos",
+  "axa": "whois.nic.axa",
+  "band": "whois.nic.band",
+  "bar": "whois.nic.bar",
+  "bargains": "whois.nic.bargains",
+  "bayern": "whois.nic.bayern",
+  "beer": "whois.nic.beer",
+  "berlin": "whois.nic.berlin",
+  "best": "whois.nic.best",
+  "bid": "whois.nic.bid",
+  "bike": "whois.nic.bike",
+  "bingo": "whois.nic.bingo",
+  "black": "whois.nic.black",
+  "blackfriday": "whois.nic.blackfriday",
+  "blog": "whois.nic.blog",
+  "blue": "whois.nic.blue",
+  "boutique": "whois.nic.boutique",
+  "build": "whois.nic.build",
+  "builders": "whois.nic.builders",
+  "business": "whois.nic.business",
+  "buzz": "whois.nic.buzz",
+  "cab": "whois.nic.cab",
+  "cafe": "whois.nic.cafe",
+  "camera": "whois.nic.camera",
+  "camp": "whois.nic.camp",
+  "capital": "whois.nic.capital",
+  "cards": "whois.nic.cards",
+  "care": "whois.nic.care",
+  "career": "whois.nic.career",
+  "careers": "whois.nic.careers",
+  "cash": "whois.nic.cash",
+  "casino": "whois.nic.casino",
+  "catering": "whois.nic.catering",
+  "center": "whois.nic.center",
+  "ceo": "whois.nic.ceo",
+  "charity": "whois.nic.charity",
+  "chat": "whois.nic.chat",
+  "cheap": "whois.nic.cheap",
+  "christmas": "whois.nic.christmas",
+  "church": "whois.nic.church",
+  "citic": "whois.nic.citic",
+  "city": "whois.nic.city",
+  "claims": "whois.nic.claims",
+  "cleaning": "whois.nic.cleaning",
+  "clinic": "whois.nic.clinic",
+  "clothing": "whois.nic.clothing",
+  "cloud": "whois.nic.cloud",
+  "club": "whois.nic.club",
+  "coach": "whois.nic.coach",
+  "codes": "whois.nic.codes",
+  "coffee": "whois.nic.coffee",
+  "college": "whois.nic.college",
+  "cologne": "whois.nic.cologne",
+  "community": "whois.nic.community",
+  "company": "whois.nic.company",
+  "computer": "whois.nic.computer",
+  "condos": "whois.nic.condos",
+  "construction": "whois.nic.construction",
+  "consulting": "whois.nic.consulting",
+  "contractors": "whois.nic.contractors",
+  "cooking": "whois.nic.cooking",
+  "cool": "whois.nic.cool",
+  "country": "whois.nic.country",
+  "coupons": "whois.nic.coupons",
+  "credit": "whois.nic.credit",
+  "creditcard": "whois.nic.creditcard",
+  "cruises": "whois.nic.cruises",
+  "dance": "whois.nic.dance",
+  "dating": "whois.nic.dating",
+  "deals": "whois.nic.deals",
+  "degree": "whois.nic.degree",
+  "delivery": "whois.nic.delivery",
+  "democrat": "whois.nic.democrat",
+  "dental": "whois.nic.dental",
+  "dentist": "whois.nic.dentist",
+  "desi": "whois.nic.desi",
+  "dev": "whois.nic.google",
+  "diamonds": "whois.nic.diamonds",
+  "digital": "whois.donuts.co",
+  "direct": "whois.nic.direct",
+  "directory": "whois.nic.directory",
+  "discount": "whois.nic.discount",
+  "dnp": "whois.nic.dnp",
+  "doctor": "whois.nic.doctor",
+  "dog": "whois.nic.dog",
+  "domains": "whois.nic.domains",
+  "education": "whois.nic.education",
+  "email": "whois.nic.email",
+  "energy": "whois.nic.energy",
+  "engineer": "whois.nic.engineer",
+  "engineering": "whois.nic.engineering",
+  "enterprises": "whois.nic.enterprises",
+  "equipment": "whois.nic.equipment",
+  "estate": "whois.nic.estate",
+  "eus": "whois.nic.eus",
+  "events": "whois.nic.events",
+  "exchange": "whois.nic.exchange",
+  "expert": "whois.nic.expert",
+  "exposed": "whois.nic.exposed",
+  "express": "whois.nic.express",
+  "fail": "whois.nic.fail",
+  "family": "whois.nic.family",
+  "fan": "whois.nic.fan",
+  "farm": "whois.nic.farm",
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+  "tt": null,
+  "tv": "tvwhois.verisign-grs.com",
+  "tw": "whois.twnic.net.tw",
+  "tz": "whois.tznic.or.tz",
+  "biz.ua": "whois.biz.ua",
+  "co.ua": "whois.co.ua",
+  "pp.ua": "whois.pp.ua",
+  "ua": "whois.ua",
+  "ug": "whois.co.ug",
+  "ac.uk": "whois.ja.net",
+  "bl.uk": null,
+  "british-library.uk": null,
+  "gov.uk": "whois.ja.net",
+  "icnet.uk": null,
+  "jet.uk": null,
+  "mod.uk": null,
+  "nhs.uk": null,
+  "nls.uk": null,
+  "parliament.uk": null,
+  "police.uk": null,
+  "uk": "whois.nic.uk",
+  "um": null,
+  "fed.us": "whois.nic.gov",
+  "us": "whois.nic.us",
+  "com.uy": null,
+  "uy": "whois.nic.org.uy",
+  "uz": "whois.cctld.uz",
+  "va": null,
+  "vc": "whois.afilias-grs.info",
+  "ve": "whois.nic.ve",
+  "vg": "whois.nic.vg",
+  "vi": null,
+  "vn": null,
+  "vu": "vunic.vu",
+  "wf": "whois.nic.wf",
+  "ws": "whois.website.ws",
+  "ye": null,
+  "yt": "whois.nic.yt",
+  "ac.za": "whois.ac.za",
+  "alt.za": "whois.alt.za",
+  "co.za": "whois.registry.net.za",
+  "gov.za": "whois.gov.za",
+  "net.za": "whois.net.za",
+  "org.za": null,
+  "web.za": "whois.web.za",
+  "za": null,
+  "zm": "whois.nic.zm",
+  "zw": null,
+
+  "xn--3e0b707e": "whois.kr",
+  "xn--45brj9c": "whois.inregistry.net",
+  "xn--80ao21a": "whois.nic.kz",
+  "xn--90a3ac": "whois.rnids.rs",
+  "xn--clchc0ea0b2g2a9gcd": "whois.sgnic.sg",
+  "xn--fiqs8s": "cwhois.cnnic.cn",
+  "xn--fiqz9s": "cwhois.cnnic.cn",
+  "xn--fpcrj9c3d": "whois.inregistry.net",
+  "xn--fzc2c9e2c": "whois.nic.lk",
+  "xn--gecrj9c": "whois.inregistry.net",
+  "xn--h2brj9c": "whois.inregistry.net",
+  "xn--j1amh": "whois.dotukr.com",
+  "xn--j6w193g": "whois.hkirc.hk",
+  "xn--kprw13d": "whois.twnic.net.tw",
+  "xn--kpry57d": "whois.twnic.net.tw",
+  "xn--l1acc": "whois.nic.mn",
+  "xn--lgbbat1ad8j": "whois.nic.dz",
+  "xn--mgb9awbf": "whois.registry.om",
+  "xn--mgba3a4f16a": "whois.nic.ir",
+  "xn--mgbaam7a8h": "whois.aeda.net.ae",
+  "xn--mgbayh7gpa": null,
+  "xn--mgbbh1a71e": "whois.inregistry.net",
+  "xn--mgbc0a9azcg": null,
+  "xn--mgberp4a5d4ar": "whois.nic.net.sa",
+  "xn--mgbx4cd0ab": "whois.domainregistry.my",
+  "xn--o3cw4h": "whois.thnic.co.th",
+  "xn--ogbpf8fl": "whois.tld.sy",
+  "xn--p1ai": "whois.tcinet.ru",
+  "xn--pgbs0dh": null,
+  "xn--s9brj9c": "whois.inregistry.net",
+  "xn--wgbh1c": "whois.dotmasr.eg",
+  "xn--wgbl6a": "whois.registry.qa",
+  "xn--xkc2al3hye2a": "whois.nic.lk",
+  "xn--xkc2dl3a5ee0h": "whois.inregistry.net",
+  "xn--yfro4i67o": "whois.sgnic.sg",
+  "xn--ygbi2ammx": "whois.pnina.ps",
+
+  "": "whois.ripe.net",
+
+  "_": {
+    "ip": {
+      "host": "whois.arin.net",
+      "query": "n + $addr\r\n"
+    }
+  }
+}
diff --git a/src/main.rs b/src/main.rs
index 3190db3..e7e2489 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -51,6 +51,13 @@ async fn main() {
     );
     info!("Postgres pool initialized");
 
+    // Create our WhoIs client
+    let whois_client = whois_rust::WhoIs::from_string(include_str!(concat!(
+        env!("CARGO_MANIFEST_DIR"),
+        "/data/whois-servers.json"
+    )))
+    .unwrap();
+
     let app = Router::new()
         .nest(
             "/api",
@@ -87,7 +94,8 @@ async fn main() {
             ),
         )
         .layer(ServiceBuilder::new().layer(TraceLayer::new_for_http()))
-        .layer(Extension(pg_pool));
+        .layer(Extension(pg_pool))
+        .layer(Extension(whois_client));
 
     let addr = SocketAddr::from(([0, 0, 0, 0], 8000));
     info!("Binding to {addr}");
diff --git a/src/routes/v1/zones.rs b/src/routes/v1/zones.rs
index 5336d28..ddbeb19 100644
--- a/src/routes/v1/zones.rs
+++ b/src/routes/v1/zones.rs
@@ -11,6 +11,7 @@ use serde::Deserialize;
 use serde_json::json;
 use sqlx::{Error, Pool, Postgres};
 use std::sync::Arc;
+use whois_rust::{WhoIs, WhoIsLookupOptions};
 
 lazy_static! {
     static ref NAMESERVERS: Vec<String> = Vec::from([
@@ -66,6 +67,7 @@ pub async fn create_zone(
     Path(zone_id): Path<String>,
     Jwt(user): Jwt,
     Extension(pool): Extension<Arc<Pool<Postgres>>>,
+    Extension(whois_client): Extension<WhoIs>,
 ) -> impl IntoResponse {
     let domain = ensure_trailing_dot(&zone_id);
     let domain = addr::parse_domain_name(&domain).unwrap();
@@ -87,6 +89,44 @@ pub async fn create_zone(
         );
     }
 
+    let lookup = match WhoIsLookupOptions::from_string(&*zone_id.trim_end_matches('.')) {
+        Ok(lookup) => lookup,
+        Err(e) => {
+            return (
+                StatusCode::BAD_REQUEST,
+                Json(json!({
+                    "error": "Invalid domain",
+                    "message": format!("Could not parse WhoIs Lookup ({})", e)
+                })),
+            )
+        }
+    };
+    let whois_res = match whois_client.lookup(lookup) {
+        Ok(res) => {
+            res
+        }
+        Err(e) => {
+            return (
+                StatusCode::BAD_REQUEST,
+                Json(json!({
+                    "error": "Invalid domain",
+                    "message": format!("{}", e)
+                })),
+            )
+        }
+    };
+
+    let whois_info = whoisthere::parse_info(&*zone_id.trim_end_matches('.'), &whois_res);
+    if !whois_info.is_registered || whois_info.is_under_grace_period {
+        return (
+            StatusCode::BAD_REQUEST,
+            Json(json!({
+                "error": "Invalid domain",
+                "message": "Domain is not registered or expired"
+            })),
+        )
+    }
+
     let zone = db::zones::create_zone(&pool, &zone_id, user.sub).await;
     match zone {
         Ok(zone) => (StatusCode::OK, Json(json!(zone))),