diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 9eefecd7b..ad78c7b61 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -1,21 +1,20 @@
 name: StaleBOT
 
 on:
-  workflow_dispatch:
-    name: 'Force cleanup'
-  schedule:
-  - cron: "30 14 * * *"
+    workflow_dispatch:
+    schedule:
+        - cron: "30 14 * * *"
 
 jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/stale@v3
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        days-before-stale: 7
-        days-before-close: 3
-        stale-issue-message: 'This issue has been marked as stale due to inactivity and will be closed. Comment anything on this issue to prevent it'
-        stale-pr-message: 'This pull request has been marked as stale due to inactivity and will be closed. Comment anything on this PR to prevent it'
-        exempt-issue-labels: 'no-stale'
-        exempt-pr-labels: 'no-stale'
+    stale:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/stale@v3
+              with:
+                  repo-token: ${{ secrets.GITHUB_TOKEN }}
+                  days-before-stale: 7
+                  days-before-close: 3
+                  stale-issue-message: "This issue has been marked as stale due to inactivity and will be closed. Comment anything on this issue to prevent it"
+                  stale-pr-message: "This pull request has been marked as stale due to inactivity and will be closed. Comment anything on this PR to prevent it"
+                  exempt-issue-labels: "no-stale"
+                  exempt-pr-labels: "no-stale"
diff --git a/.github/workflows/validation.yml b/.github/workflows/validation.yml
index d48c9a347..3b9476f0e 100644
--- a/.github/workflows/validation.yml
+++ b/.github/workflows/validation.yml
@@ -38,4 +38,14 @@ jobs:
 
             - run: npm install
 
+            - name: Get modified files
+              if: github.event_name == 'pull_request'
+              id: files
+              run: |
+                    echo "::set-output name=files::$(git diff --name-only ${{ github.event.before }} ${{ github.sha }})"
+
             - run: npm test
+              env:
+                  EVENT: ${{ github.event_name }}
+                  PR_AUTHOR: ${{ github.event.pull_request.user.login }}
+                  MODIFIED_FILES: ${{ steps.files.outputs.files || '' }}
diff --git a/domains/1-train-ride-in-germany-is-300-euros.json b/domains/1-train-ride-in-germany-is-300-euros.json
deleted file mode 100644
index e809964fb..000000000
--- a/domains/1-train-ride-in-germany-is-300-euros.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-  "owner": {
-    "username": "Yunexiz",
-    "discord": "1040303561847881729"
-  },
-  "record": {
-    "A": [
-      "185.199.109.153",
-      "185.199.108.153",
-      "185.199.110.153",
-      "185.199.111.153"
-    ]
-  }
-}
diff --git a/domains/_github-pages-challenge-yunexiz.1-train-ride-in-germany-is-300-euros.json b/domains/_github-pages-challenge-yunexiz.1-train-ride-in-germany-is-300-euros.json
deleted file mode 100644
index 73f4376f4..000000000
--- a/domains/_github-pages-challenge-yunexiz.1-train-ride-in-germany-is-300-euros.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "owner": {
-    "username": "Yunexiz",
-    "discord": "1040303561847881729"
-  },
-  "record": {
-    "TXT": "a39a9e9549128753e8f6757a37d2c2"
-  }
-}
diff --git a/domains/_github-pages-challenge-yunexiz.ai-y.yunexiz.json b/domains/_github-pages-challenge-yunexiz.ai-y.yunexiz.json
deleted file mode 100644
index 5e584ec99..000000000
--- a/domains/_github-pages-challenge-yunexiz.ai-y.yunexiz.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "owner": {
-    "username": "yunexiz",
-    "discord": "1040303561847881729"
-  },
-  "record": {
-    "TXT": "44acf50d05a09c5bdcb82f64551e6c"
-  }
-}
diff --git a/domains/ai-y.json b/domains/ai-y.json
deleted file mode 100644
index 1ba829032..000000000
--- a/domains/ai-y.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "owner": {
-    "username": "yunexiz",
-    "discord": "1040303561847881729"
-  },
-  "record": {
-    "CNAME": "ai-y.onrender.com"
-  }
-}
diff --git a/domains/ai-y.yosuke.json b/domains/ai-y.yosuke.json
deleted file mode 100644
index 632f9c315..000000000
--- a/domains/ai-y.yosuke.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "owner": {
-    "username": "yunexiz",
-    "discord": "1040303561847881729"
-  },
-  "record": {
-    "CNAME": "ai-y-main.pages.dev"
-  }
-}
diff --git a/domains/ai-y.yunexiz.json b/domains/ai-y.yunexiz.json
deleted file mode 100644
index 0ab726729..000000000
--- a/domains/ai-y.yunexiz.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "owner": {
-    "username": "yunexiz",
-    "discord": "1040303561847881729"
-  },
-  "record": {
-    "CNAME": "yunexiz.github.io"
-  }
-}
diff --git a/domains/chattingmessenger.json b/domains/chattingmessenger.json
new file mode 100644
index 000000000..c2652d957
--- /dev/null
+++ b/domains/chattingmessenger.json
@@ -0,0 +1,9 @@
+{
+    "owner": {
+        "username": "riotoff",
+        "discord": "1040929084684902460"
+    },
+    "record": {
+        "CNAME": "riotoff.github.io"
+    }
+} 
diff --git a/domains/face-recognition.shockbs.json b/domains/face-recognition.shockbs.json
deleted file mode 100644
index 6000dc098..000000000
--- a/domains/face-recognition.shockbs.json
+++ /dev/null
@@ -1,9 +0,0 @@
-{
-  "owner": {
-    "username": "shockbs",
-    "email": "apipherng@gmail.com"
-  },
-  "record": {
-    "CNAME": "na-west1.surge.sh"
-  }
-}
diff --git a/tests/pr.test.js b/tests/pr.test.js
new file mode 100644
index 000000000..98a153a7d
--- /dev/null
+++ b/tests/pr.test.js
@@ -0,0 +1,26 @@
+const t = require("ava");
+const fs = require("fs-extra");
+const path = require("path");
+
+const PR_AUTHOR = process.env.PR_AUTHOR;
+const MODIFIED_FILES = process.env.MODIFIED_FILES.split(",");
+
+const domainsPath = path.resolve("domains");
+
+const admins = require("../util/administrators.json");
+
+t("Modified JSON files must be owned by the PR author", (t) => {
+    if(process.env.EVENT !== "pull_request") {
+        t.pass();
+        return;
+    }
+
+    MODIFIED_FILES.forEach((file) => {
+        const domain = fs.readJsonSync(path.join(domainsPath, file));
+
+        t.true(
+            domain.owner.username === PR_AUTHOR || admins.includes(PR_AUTHOR),
+            `${file}: Owner is ${domain.owner.username} but ${PR_AUTHOR} is the PR author`
+        );
+    });
+});
diff --git a/util/administrators.json b/util/administrators.json
new file mode 100644
index 000000000..f85832ced
--- /dev/null
+++ b/util/administrators.json
@@ -0,0 +1,4 @@
+[
+    "wdhdev",
+    "DEV-DIBSTER"
+]
\ No newline at end of file
diff --git a/util/reserved-domains.json b/util/reserved-domains.json
index 67087b209..42a683c8c 100644
--- a/util/reserved-domains.json
+++ b/util/reserved-domains.json
@@ -8,7 +8,9 @@
     "api",
     "auth",
     "authentication",
+    "authorisation",
     "authorise",
+    "authorization",
     "authorize",
     "aux",
     "billing",
@@ -17,6 +19,7 @@
     "cart",
     "catalog",
     "checkout",
+    "co",
     "com",
     "com[1-9]",
     "con",
@@ -74,7 +77,6 @@
     "payments",
     "portal",
     "postmaster",
-    "prn",
     "recovery",
     "redirect",
     "registrar",