diff --git a/domains/externref.is-cool.dev.json b/domains/externref.is-cool.dev.json
new file mode 100644
index 00000000..dc883a24
--- /dev/null
+++ b/domains/externref.is-cool.dev.json
@@ -0,0 +1,14 @@
+{
+    "domain": "is-cool.dev",
+    "subdomain": "externref",
+
+    "owner": {
+        "email": "shiva02939@gmail.com"
+    },
+
+    "record": {
+        "CNAME": "externref.up.railway.app"
+    },
+
+    "proxied": false
+}
diff --git a/domains/mail.deva.is-cool.dev.json b/domains/mail.deva.is-cool.dev.json
new file mode 100644
index 00000000..e0ed9a61
--- /dev/null
+++ b/domains/mail.deva.is-cool.dev.json
@@ -0,0 +1,17 @@
+{
+  "description": "Mail URL",
+
+  "domain": "is-cool.dev",
+  "subdomain": "mail.deva",
+
+  "owner": {
+    "email": "devamidhun.3c.kmbvm@gmail.com"
+  },
+
+  "record": {
+    "MX": ["mx1.improvmx.com", "mx2.improvmx.com"],
+    "TXT": ["v=spf1 include:spf.improvmx.com ~all"]
+  },
+
+  "proxied": false
+}
diff --git a/domains/narmis.is-cool.dev.json b/domains/narmis.is-cool.dev.json
new file mode 100644
index 00000000..e96b430f
--- /dev/null
+++ b/domains/narmis.is-cool.dev.json
@@ -0,0 +1,17 @@
+{
+    "description": "My portfolio hosted on GitHub Pages",
+
+    "domain": "is-cool.dev",
+    "subdomain": "narmis",
+
+    "owner": {
+        "repo": "https://github.com/narmis-e/portfolio",
+        "email": "narmisecurb@gmail.com"
+    },
+
+    "record": {
+        "CNAME": "narmis-e.github.io"
+    },
+
+    "proxied": false
+}
diff --git a/domains/play.deva.is-cool.dev.json b/domains/play.deva.is-cool.dev.json
new file mode 100644
index 00000000..64c4eda0
--- /dev/null
+++ b/domains/play.deva.is-cool.dev.json
@@ -0,0 +1,14 @@
+{
+  "description": "Minecraft server",
+
+  "domain": "is-cool.dev",
+  "subdomain": "play.deva",
+
+  "owner": {
+        "email": "devamidhun.3c.kmbvm@gmail.com"
+  },
+
+  "record": {
+    "NS": ["galileo.aternos.org", "columbus.aternos.org"]
+  }
+}