diff --git a/core/sig_utils.py b/core/sig_utils.py
index fc9469e..aacd246 100644
--- a/core/sig_utils.py
+++ b/core/sig_utils.py
@@ -29,7 +29,10 @@ def populate_sig_ref_info(sig_ref):
     ref_id = sig_ref.id
     try:
         if sig.upper() == "POTA":
-            data = SEMI_STATIC_URL_DATA_CACHE.get("https://api.pota.app/park/" + ref_id, headers=HTTP_HEADERS).json()
+            response = SEMI_STATIC_URL_DATA_CACHE.get("https://api.pota.app/park/" + ref_id, headers=HTTP_HEADERS)
+            if not response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", response.status_code, sig, ref_id)
+            data = response.json() if response.ok else None
             if data:
                 fullname = str(data["name"]) if "name" in data else None
                 if fullname and "parktypeDesc" in data and data["parktypeDesc"] != "":
@@ -40,8 +43,11 @@ def populate_sig_ref_info(sig_ref):
                 sig_ref.latitude = data["latitude"] if "latitude" in data else None
                 sig_ref.longitude = data["longitude"] if "longitude" in data else None
         elif sig.upper() == "SOTA":
-            data = SEMI_STATIC_URL_DATA_CACHE.get("https://api-db2.sota.org.uk/api/summits/" + ref_id,
-                                                  headers=HTTP_HEADERS).json()
+            response = SEMI_STATIC_URL_DATA_CACHE.get("https://api-db2.sota.org.uk/api/summits/" + ref_id,
+                                                      headers=HTTP_HEADERS)
+            if not response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", response.status_code, sig, ref_id)
+            data = response.json() if response.ok else None
             if data:
                 sig_ref.name = data["name"] if "name" in data else None
                 sig_ref.url = "https://www.sotadata.org.uk/en/summit/" + ref_id
@@ -50,8 +56,11 @@ def populate_sig_ref_info(sig_ref):
                 sig_ref.longitude = data["longitude"] if "longitude" in data else None
                 sig_ref.activation_score = data["points"] if "points" in data else None
         elif sig.upper() == "WWBOTA":
-            data = SEMI_STATIC_URL_DATA_CACHE.get("https://api.wwbota.org/bunkers/" + ref_id,
-                                                  headers=HTTP_HEADERS).json()
+            response = SEMI_STATIC_URL_DATA_CACHE.get("https://api.wwbota.org/bunkers/" + ref_id,
+                                                      headers=HTTP_HEADERS)
+            if not response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", response.status_code, sig, ref_id)
+            data = response.json() if response.ok else None
             if data:
                 sig_ref.name = data["name"] if "name" in data else None
                 sig_ref.url = "https://bunkerwiki.org/?s=" + ref_id if ref_id.startswith("B/G") else None
@@ -59,8 +68,11 @@ def populate_sig_ref_info(sig_ref):
                 sig_ref.latitude = data["lat"] if "lat" in data else None
                 sig_ref.longitude = data["long"] if "long" in data else None
         elif sig.upper() == "GMA" or sig.upper() == "ARLHS" or sig.upper() == "ILLW" or sig.upper() == "WCA" or sig.upper() == "MOTA" or sig.upper() == "IOTA":
-            data = SEMI_STATIC_URL_DATA_CACHE.get("https://www.cqgma.org/api/ref/?" + ref_id,
-                                                  headers=HTTP_HEADERS).json()
+            response = SEMI_STATIC_URL_DATA_CACHE.get("https://www.cqgma.org/api/ref/?" + ref_id,
+                                                      headers=HTTP_HEADERS)
+            if not response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", response.status_code, sig, ref_id)
+            data = response.json() if response.ok else None
             if data:
                 sig_ref.name = data["name"] if "name" in data else None
                 sig_ref.url = "https://www.cqgma.org/zinfo.php?ref=" + ref_id
@@ -68,9 +80,12 @@ def populate_sig_ref_info(sig_ref):
                 sig_ref.latitude = data["latitude"] if "latitude" in data else None
                 sig_ref.longitude = data["longitude"] if "longitude" in data else None
         elif sig.upper() == "WWFF":
-            wwff_csv_data = SEMI_STATIC_URL_DATA_CACHE.get("https://wwff.co/wwff-data/wwff_directory.csv",
+            wwff_response = SEMI_STATIC_URL_DATA_CACHE.get("https://wwff.co/wwff-data/wwff_directory.csv",
                                                            headers=HTTP_HEADERS)
-            wwff_index = {row["reference"]: row for row in csv.DictReader(wwff_csv_data.content.decode().splitlines())}
+            if not wwff_response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", wwff_response.status_code, sig, ref_id)
+                return sig_ref
+            wwff_index = {row["reference"]: row for row in csv.DictReader(wwff_response.content.decode().splitlines())}
             row = wwff_index.get(ref_id)
             if row:
                 sig_ref.name = row["name"] if "name" in row else None
@@ -79,10 +94,13 @@ def populate_sig_ref_info(sig_ref):
                 sig_ref.latitude = float(row["latitude"]) if "latitude" in row and row["latitude"] != "-" else None
                 sig_ref.longitude = float(row["longitude"]) if "longitude" in row and row["longitude"] != "-" else None
         elif sig.upper() == "SIOTA":
-            siota_csv_data = SEMI_STATIC_URL_DATA_CACHE.get("https://www.silosontheair.com/data/silos.csv",
+            siota_response = SEMI_STATIC_URL_DATA_CACHE.get("https://www.silosontheair.com/data/silos.csv",
                                                             headers=HTTP_HEADERS)
+            if not siota_response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", siota_response.status_code, sig, ref_id)
+                return sig_ref
             siota_index = {row["SILO_CODE"]: row for row in
-                           csv.DictReader(siota_csv_data.content.decode().splitlines())}
+                           csv.DictReader(siota_response.content.decode().splitlines())}
             row = siota_index.get(ref_id)
             if row:
                 sig_ref.name = row["NAME"] if "NAME" in row else None
@@ -90,10 +108,13 @@ def populate_sig_ref_info(sig_ref):
                 sig_ref.latitude = float(row["LAT"]) if "LAT" in row else None
                 sig_ref.longitude = float(row["LNG"]) if "LNG" in row else None
         elif sig.upper() == "WOTA":
-            data = SEMI_STATIC_URL_DATA_CACHE.get("https://www.wota.org.uk/mapping/data/summits.json",
-                                                  headers=HTTP_HEADERS).json()
+            response = SEMI_STATIC_URL_DATA_CACHE.get("https://www.wota.org.uk/mapping/data/summits.json",
+                                                      headers=HTTP_HEADERS)
+            if not response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", response.status_code, sig, ref_id)
+            data = response.json() if response.ok else None
             if data:
-                for feature in data["features"]:
+                for feature in data.get("features", []):
                     if feature["properties"]["wotaId"] == ref_id:
                         sig_ref.name = feature["properties"]["title"]
                         # Fudge WOTA URLs. Outlying fell (LDO) URLs don't match their ID numbers but require 214 to be
@@ -107,8 +128,11 @@ def populate_sig_ref_info(sig_ref):
                         sig_ref.longitude = feature["geometry"]["coordinates"][0]
                         break
         elif sig.upper() == "ZLOTA":
-            data = SEMI_STATIC_URL_DATA_CACHE.get("https://ontheair.nz/assets/assets.json", headers=HTTP_HEADERS).json()
-            if data:
+            response = SEMI_STATIC_URL_DATA_CACHE.get("https://ontheair.nz/assets/assets.json", headers=HTTP_HEADERS)
+            if not response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", response.status_code, sig, ref_id)
+            data = response.json() if response.ok else None
+            if isinstance(data, list):
                 for asset in data:
                     if asset["code"] == ref_id:
                         sig_ref.name = asset["name"]
@@ -125,9 +149,12 @@ def populate_sig_ref_info(sig_ref):
                 sig_ref.name = sig_ref.id
             sig_ref.url = "https://www.beachesontheair.com/beaches/" + sig_ref.name.lower().replace(" ", "-")
         elif sig.upper() == "LLOTA":
-            data = SEMI_STATIC_URL_DATA_CACHE.get("https://llota.app/api/public/references",
-                                                  headers=HTTP_HEADERS).json()
-            if data:
+            response = SEMI_STATIC_URL_DATA_CACHE.get("https://llota.app/api/public/references",
+                                                      headers=HTTP_HEADERS)
+            if not response.ok:
+                logging.warning("HTTP %d looking up %s ref %s", response.status_code, sig, ref_id)
+            data = response.json() if response.ok else None
+            if isinstance(data, list):
                 for ref in data:
                     if ref["reference_code"] == ref_id:
                         sig_ref.name = str(ref["name"])
diff --git a/templates/add_spot.html b/templates/add_spot.html
index c1b0238..36992f7 100644
--- a/templates/add_spot.html
+++ b/templates/add_spot.html
@@ -76,7 +76,7 @@
 
 </div>
 
-<script src="/js/add-spot.js?v=1782075019"></script>
+<script src="/js/add-spot.js?v=1782075686"></script>
 <script>$(document).ready(function () {
     $("#nav-link-add-spot").addClass("active");
 }); <!-- highlight active page in nav --></script>
diff --git a/templates/alerts.html b/templates/alerts.html
index 4dfa4fe..9a240b9 100644
--- a/templates/alerts.html
+++ b/templates/alerts.html
@@ -75,7 +75,7 @@
 
 </div>
 
-<script src="/js/alerts.js?v=1782075019"></script>
+<script src="/js/alerts.js?v=1782075686"></script>
 <script>$(document).ready(function () {
     $("#nav-link-alerts").addClass("active");
 }); <!-- highlight active page in nav --></script>
diff --git a/templates/bands.html b/templates/bands.html
index 81ca9ab..21c6af2 100644
--- a/templates/bands.html
+++ b/templates/bands.html
@@ -77,8 +77,8 @@
 <script>
     let spotProvidersEnabledByDefault = {% raw json_encode(web_ui_options["spot-providers-enabled-by-default"]) %};
 </script>
-<script src="/js/spotsbandsandmap.js?v=1782075019"></script>
-<script src="/js/bands.js?v=1782075019"></script>
+<script src="/js/spotsbandsandmap.js?v=1782075686"></script>
+<script src="/js/bands.js?v=1782075686"></script>
 <script>$(document).ready(function () {
     $("#nav-link-bands").addClass("active");
 }); <!-- highlight active page in nav --></script>
diff --git a/templates/base.html b/templates/base.html
index 4e2aeea..b6cbc90 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -1,6 +1,6 @@
 {% extends "skeleton.html" %}
 {% block head_extra %}
-<link rel="stylesheet" href="/css/style.css?v=1782075019" type="text/css">
+<link rel="stylesheet" href="/css/style.css?v=1782075686" type="text/css">
 <link href="/vendor/css/bootstrap-5.3.8.min.css" rel="stylesheet">
 <link href="/vendor/css/fontawesome-6.7.2.min.css" rel="stylesheet">
 <link href="/vendor/css/solid-6.7.2.min.css" rel="stylesheet">
@@ -10,10 +10,10 @@
 <script src="/vendor/js/bootstrap-5.3.8.bundle.min.js"></script>
 <script src="/vendor/js/tinycolor2-1.6.0.min.js"></script>
 
-<script src="/js/utils.js?v=1782075019"></script>
-<script src="/js/ui-ham.js?v=1782075019"></script>
-<script src="/js/geo.js?v=1782075019"></script>
-<script src="/js/common.js?v=1782075019"></script>
+<script src="/js/utils.js?v=1782075686"></script>
+<script src="/js/ui-ham.js?v=1782075686"></script>
+<script src="/js/geo.js?v=1782075686"></script>
+<script src="/js/common.js?v=1782075686"></script>
 {% end %}
 {% block body %}
 <div class="container">
diff --git a/templates/conditions.html b/templates/conditions.html
index 6dbfc53..8a07ffb 100644
--- a/templates/conditions.html
+++ b/templates/conditions.html
@@ -284,7 +284,7 @@
 </div>
 
 <script src="/vendor/js/chart-4.4.9.umd.min.js"></script>
-<script src="/js/conditions.js?v=1782075019"></script>
+<script src="/js/conditions.js?v=1782075686"></script>
 <script>$(document).ready(function () {
     $("#nav-link-conditions").addClass("active");
 }); <!-- highlight active page in nav --></script>
diff --git a/templates/map.html b/templates/map.html
index e623765..c135728 100644
--- a/templates/map.html
+++ b/templates/map.html
@@ -95,8 +95,8 @@
 <script>
     let spotProvidersEnabledByDefault = {% raw json_encode(web_ui_options["spot-providers-enabled-by-default"]) %};
 </script>
-<script src="/js/spotsbandsandmap.js?v=1782075018"></script>
-<script src="/js/map.js?v=1782075018"></script>
+<script src="/js/spotsbandsandmap.js?v=1782075686"></script>
+<script src="/js/map.js?v=1782075686"></script>
 <script>$(document).ready(function () {
     $("#nav-link-map").addClass("active");
 }); <!-- highlight active page in nav --></script>
diff --git a/templates/spots.html b/templates/spots.html
index 0bdca08..c921a6e 100644
--- a/templates/spots.html
+++ b/templates/spots.html
@@ -116,8 +116,8 @@
 <script>
     let spotProvidersEnabledByDefault = {% raw json_encode(web_ui_options["spot-providers-enabled-by-default"]) %};
 </script>
-<script src="/js/spotsbandsandmap.js?v=1782075018"></script>
-<script src="/js/spots.js?v=1782075018"></script>
+<script src="/js/spotsbandsandmap.js?v=1782075686"></script>
+<script src="/js/spots.js?v=1782075686"></script>
 <script>$(document).ready(function () {
     $("#nav-link-spots").addClass("active");
 }); <!-- highlight active page in nav --></script>
diff --git a/templates/status.html b/templates/status.html
index b49cbfc..191d443 100644
--- a/templates/status.html
+++ b/templates/status.html
@@ -59,7 +59,7 @@
     </div>
 </div>
 
-<script src="/js/status.js?v=1782075019"></script>
+<script src="/js/status.js?v=1782075686"></script>
 <script>
     $(document).ready(function () {
         $("#nav-link-status").addClass("active");