diff --git a/.github/workflows/validate_modified_targets.yml b/.github/workflows/validate_modified_targets.yml
index de024090..bb244511 100644
--- a/.github/workflows/validate_modified_targets.yml
+++ b/.github/workflows/validate_modified_targets.yml
@@ -17,29 +17,40 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v5
         with:
+          # Checkout the base branch but fetch all history to avoid a second fetch call
           ref: ${{ github.base_ref }}
-          fetch-depth: 1
+          fetch-depth: 0
 
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: '3.13'
+          python-version: "3.13"
 
       - name: Install Poetry
         uses: abatilo/actions-poetry@v4
         with:
-          poetry-version: 'latest'
+          poetry-version: "latest"
 
       - name: Install dependencies
         run: |
           poetry install --no-interaction --with dev
 
-      - name: Drop in place updated manifest from base
+      - name: Prepare JSON versions for comparison
         run: |
-          cp sherlock_project/resources/data.json data.json.base
-          git fetch origin pull/${{ github.event.pull_request.number }}/head:pr --depth=1
-          git show pr:sherlock_project/resources/data.json > sherlock_project/resources/data.json
-          cp sherlock_project/resources/data.json data.json.head
+          # Fetch only the PR's branch head (single network call in this step)
+          git fetch origin pull/${{ github.event.pull_request.number }}/head:pr
+
+          # Find the merge-base commit between the target branch and the PR branch
+          MERGE_BASE=$(git merge-base origin/${{ github.base_ref }} pr)
+          echo "Comparing PR head against merge-base commit: $MERGE_BASE"
+
+          # Safely extract the file from the PR's head and the merge-base commit
+          git show pr:sherlock_project/resources/data.json > data.json.head
+          git show $MERGE_BASE:sherlock_project/resources/data.json > data.json.base
+
+          # CRITICAL FIX: Overwrite the checked-out data.json with the one from the PR
+          # This ensures that pytest runs against the new, updated file.
+          cp data.json.head sherlock_project/resources/data.json
 
       - name: Discover modified targets
         id: discover-modified
@@ -47,8 +58,16 @@ jobs:
           CHANGED=$(
             python - <<'EOF'
           import json
-          with open("data.json.base") as f: base = json.load(f)
-          with open("data.json.head") as f: head = json.load(f)
+          import sys
+          try:
+              with open("data.json.base") as f: base = json.load(f)
+              with open("data.json.head") as f: head = json.load(f)
+          except FileNotFoundError as e:
+              print(f"Error: Could not find {e.filename}", file=sys.stderr)
+              sys.exit(1)
+          except json.JSONDecodeError as e:
+              print(f"Error: Could not decode JSON from a file - {e}", file=sys.stderr)
+              sys.exit(1)
 
           changed = []
           for k, v in head.items():
@@ -63,6 +82,8 @@ jobs:
           echo -e ">>> Changed targets: \n$(echo $CHANGED | tr ',' '\n')"
           echo "changed_targets=$CHANGED" >> "$GITHUB_OUTPUT"
 
+      # --- The rest of the steps below are unchanged ---
+
       - name: Validate modified targets
         if: steps.discover-modified.outputs.changed_targets != ''
         continue-on-error: true
diff --git a/sherlock_project/resources/data.json b/sherlock_project/resources/data.json
index a117740c..9d5c65fd 100644
--- a/sherlock_project/resources/data.json
+++ b/sherlock_project/resources/data.json
@@ -259,7 +259,8 @@
     "username_claimed": "blue"
   },
   "Blitz Tactics": {
-    "errorType": "status_code",
+    "errorMsg": "That page doesn't exist",
+    "errorType": "message",
     "url": "https://blitztactics.com/{}",
     "urlMain": "https://blitztactics.com/",
     "username_claimed": "Lance5500"
@@ -278,14 +279,7 @@
     "urlMain": "https://bsky.app/",
     "username_claimed": "mcuban"
   },
-  "BoardGameGeek": {
-    "errorType": "message",
-    "regexCheck": "^[a-zA-Z0-9_]*$",
-    "errorMsg": "User not found",
-    "url": "https://boardgamegeek.com/user/{}",
-    "urlMain": "https://boardgamegeek.com",
-    "username_claimed": "blue"
-  },
+
   "BongaCams": {
     "errorType": "status_code",
     "isNSFW": true,
@@ -299,6 +293,14 @@
     "urlMain": "https://www.bookcrossing.com/",
     "username_claimed": "blue"
   },
+  "BoardGameGeek": {
+    "errorMsg": "\"isValid\":true",
+    "errorType": "message",
+    "url": "https://boardgamegeek.com/user/{}",
+    "urlMain": "https://boardgamegeek.com/",
+    "urlProbe": "https://api.geekdo.com/api/accounts/validate/username?username={}",
+    "username_claimed": "blue"
+  },
   "BraveCommunity": {
     "errorType": "status_code",
     "url": "https://community.brave.com/u/{}/",
@@ -505,6 +507,15 @@
     "urlMain": "https://coderwall.com",
     "username_claimed": "hacker"
   },
+  "Code Sandbox": {
+    "errorType": "message",
+    "errorMsg": "Could not find user with username",
+    "regexCheck": "^[a-zA-Z0-9_-]{3,30}$",
+    "url": "https://codesandbox.io/u/{}",
+    "urlProbe": "https://codesandbox.io/api/v1/users/{}",
+    "urlMain": "https://codesandbox.io",
+    "username_claimed": "icyjoseph"
+  },
   "Codewars": {
     "errorType": "status_code",
     "url": "https://www.codewars.com/users/{}",
@@ -537,6 +548,13 @@
     "urlMain": "https://coroflot.com/",
     "username_claimed": "blue"
   },
+  "Cplusplus": {
+    "errorType": "message",
+    "errorMsg": "<title>404 Page Not Found</title>",
+    "url": "https://cplusplus.com/user/{}",
+    "urlMain": "https://cplusplus.com",
+    "username_claimed": "mbozzi"
+  },
   "Cracked": {
     "errorType": "response_url",
     "errorUrl": "https://www.cracked.com/",
@@ -683,7 +701,6 @@
   "Duolingo": {
     "errorMsg": "{\"users\":[]}",
     "errorType": "message",
-
     "url": "https://www.duolingo.com/profile/{}",
     "urlMain": "https://duolingo.com/",
     "urlProbe": "https://www.duolingo.com/2017-06-30/users?username={}",
@@ -1056,6 +1073,13 @@
     "urlMain": "https://www.heavy-r.com/",
     "username_claimed": "kilroy222"
   },
+  "Hive Blog": {
+    "errorMsg": "<title>User Not Found - Hive</title>",
+    "errorType": "message",
+    "url": "https://hive.blog/@{}",
+    "urlMain": "https://hive.blog/",
+    "username_claimed": "mango-juice"
+  },
   "Holopin": {
     "errorMsg": "true",
     "errorType": "message",
@@ -1217,6 +1241,13 @@
     "urlMain": "https://discourse.joplinapp.org/",
     "username_claimed": "laurent"
   },
+  "Jupyter Community Forum": {
+    "errorMsg": "Oops! That page doesn’t exist or is private.",
+    "errorType": "message",
+    "url": "https://discourse.jupyter.org/u/{}/summary",
+    "urlMain": "https://discourse.jupyter.org",
+    "username_claimed": "choldgraf"
+  },
   "Kaggle": {
     "errorType": "status_code",
     "url": "https://www.kaggle.com/{}",
@@ -1739,6 +1770,12 @@
     "urlMain": "http://promodj.com/",
     "username_claimed": "blue"
   },
+  "Pronouns.page": {
+    "errorType": "status_code",
+    "url": "https://pronouns.page/@{}",
+    "urlMain": "https://pronouns.page/",
+    "username_claimed": "andrea"
+  },
   "PyPi": {
     "errorType": "status_code",
     "url": "https://pypi.org/user/{}",
@@ -1746,6 +1783,13 @@
     "urlMain": "https://pypi.org",
     "username_claimed": "Blue"
   },
+  "Python.org Discussions": {
+    "errorMsg": "Oops! That page doesn’t exist or is private.",
+    "errorType": "message",
+    "url": "https://discuss.python.org/u/{}/summary",
+    "urlMain": "https://discuss.python.org",
+    "username_claimed": "pablogsal"
+  },
   "Rajce.net": {
     "errorType": "status_code",
     "regexCheck": "^[\\w@-]+?$",
@@ -1841,6 +1885,13 @@
     "urlMain": "https://royalcams.com",
     "username_claimed": "asuna-black"
   },
+  "Ruby Forums": {
+    "errorMsg": "Oops! That page doesn’t exist or is private.",
+    "errorType": "message",
+    "url": "https://ruby-forum.com/u/{}/summary",
+    "urlMain": "https://ruby-forums.com",
+    "username_claimed": "rishard"
+  },
   "RubyGems": {
     "errorType": "status_code",
     "regexCheck": "^[a-zA-Z][a-zA-Z0-9_-]{1,40}",
@@ -2041,7 +2092,6 @@
   },
   "Spotify": {
     "errorType": "status_code",
-
     "url": "https://open.spotify.com/user/{}",
     "urlMain": "https://open.spotify.com/",
     "username_claimed": "blue"
@@ -2246,6 +2296,13 @@
     "urlMain": "https://untappd.com/",
     "username_claimed": "untappd"
   },
+  "Valorant Forums": {
+    "errorMsg": "The page you requested could not be found.",
+    "errorType": "message",
+    "url": "https://valorantforums.com/u/{}",
+    "urlMain": "https://valorantforums.com",
+    "username_claimed": "Wolves"
+  },
   "VK": {
     "errorType": "response_url",
     "errorUrl": "https://www.quora.com/profile/{}",
@@ -2320,6 +2377,12 @@
     "urlMain": "https://discourse.wicg.io/",
     "username_claimed": "stefano"
   },
+  "Wakatime": {
+    "errorType": "status_code",
+    "url": "https://wakatime.com/@{}",
+    "urlMain": "https://wakatime.com/",
+    "username_claimed": "blue"
+  },
   "Warrior Forum": {
     "errorType": "status_code",
     "url": "https://www.warriorforum.com/members/{}.html",
@@ -2464,7 +2527,6 @@
   },
   "YouTube": {
     "errorType": "status_code",
-
     "url": "https://www.youtube.com/@{}",
     "urlMain": "https://www.youtube.com/",
     "username_claimed": "youtube"