diff --git a/config-example.yml b/config-example.yml
index cf75d09..7e4065e 100644
--- a/config-example.yml
+++ b/config-example.yml
@@ -6,6 +6,9 @@
 # this as "N0CALL" and it shouldn't do any harm, as we're not sending anything to the various networks, only receiving.
 server-owner-callsign: "N0CALL"
 
+# The base URL at which the software runs.
+base-url: "http://localhost:8080"
+
 # Spot providers to use. This is an example set, tailor it to your liking by commenting and uncommenting.
 # RBN and APRS-IS are supported but have such a high data rate, you probably don't want them enabled.
 # Each provider needs a class, a name, and an enabled/disabled state. Some require more config such as hostnames/IP
diff --git a/core/config.py b/core/config.py
index 64265f2..59fe5a0 100644
--- a/core/config.py
+++ b/core/config.py
@@ -14,6 +14,7 @@ with open("config.yml") as f:
     config = yaml.safe_load(f)
 logging.info("Loaded config.")
 
+BASE_URL = config["base-url"]
 MAX_SPOT_AGE = config["max-spot-age-sec"]
 MAX_ALERT_AGE = config["max-alert-age-sec"]
 SERVER_OWNER_CALLSIGN = config["server-owner-callsign"]
diff --git a/server/handlers/pagetemplate.py b/server/handlers/pagetemplate.py
index 8a96e35..3f18926 100644
--- a/server/handlers/pagetemplate.py
+++ b/server/handlers/pagetemplate.py
@@ -3,7 +3,7 @@ from datetime import datetime
 import pytz
 import tornado
 
-from core.config import ALLOW_SPOTTING, WEB_UI_OPTIONS
+from core.config import ALLOW_SPOTTING, WEB_UI_OPTIONS, BASE_URL
 from core.constants import SOFTWARE_VERSION
 from core.prometheus_metrics_handler import page_requests_counter
 
@@ -24,4 +24,4 @@ class PageTemplateHandler(tornado.web.RequestHandler):
 
         # Load named template, and provide variables used in templates
         self.render(self._template_name + ".html", software_version=SOFTWARE_VERSION, allow_spotting=ALLOW_SPOTTING,
-                    web_ui_options=WEB_UI_OPTIONS)
+                    web_ui_options=WEB_UI_OPTIONS, baseurl = BASE_URL, current_path=self.request.path)
\ No newline at end of file
diff --git a/templates/about.html b/templates/about.html
index 546314b..146217e 100644
--- a/templates/about.html
+++ b/templates/about.html
@@ -66,7 +66,7 @@
     <p>This software is dedicated to the memory of Tom G1PJB, SK, a friend and colleague who sadly passed away around the time I started writing it in Autumn 2025. I was looking forward to showing it to you when it was done.</p>
 </div>
 
-<script src="/js/common.js?v=1773053188"></script>
+<script src="/js/common.js?v=1773090023"></script>
 <script>$(document).ready(function() { $("#nav-link-about").addClass("active"); }); <!-- highlight active page in nav --></script>
 
 {% end %}
\ No newline at end of file
diff --git a/templates/add_spot.html b/templates/add_spot.html
index 1641404..3aeafef 100644
--- a/templates/add_spot.html
+++ b/templates/add_spot.html
@@ -69,8 +69,8 @@
 
 </div>
 
-<script src="/js/common.js?v=1773053188"></script>
-<script src="/js/add-spot.js?v=1773053188"></script>
+<script src="/js/common.js?v=1773090023"></script>
+<script src="/js/add-spot.js?v=1773090023"></script>
 <script>$(document).ready(function() { $("#nav-link-add-spot").addClass("active"); }); <!-- highlight active page in nav --></script>
 
 {% end %}
\ No newline at end of file
diff --git a/templates/alerts.html b/templates/alerts.html
index 97bd949..dc5a29d 100644
--- a/templates/alerts.html
+++ b/templates/alerts.html
@@ -56,8 +56,8 @@
 
 </div>
 
-<script src="/js/common.js?v=1773053188"></script>
-<script src="/js/alerts.js?v=1773053188"></script>
+<script src="/js/common.js?v=1773090023"></script>
+<script src="/js/alerts.js?v=1773090023"></script>
 <script>$(document).ready(function() { $("#nav-link-alerts").addClass("active"); }); <!-- highlight active page in nav --></script>
 
 {% end %}
\ No newline at end of file
diff --git a/templates/bands.html b/templates/bands.html
index f3a100a..30df663 100644
--- a/templates/bands.html
+++ b/templates/bands.html
@@ -62,9 +62,9 @@
 <script>
     let spotProvidersEnabledByDefault = {% raw json_encode(web_ui_options["spot-providers-enabled-by-default"]) %};
 </script>
-<script src="/js/common.js?v=1773053188"></script>
-<script src="/js/spotsbandsandmap.js?v=1773053188"></script>
-<script src="/js/bands.js?v=1773053188"></script>
+<script src="/js/common.js?v=1773090023"></script>
+<script src="/js/spotsbandsandmap.js?v=1773090023"></script>
+<script src="/js/bands.js?v=1773090023"></script>
 <script>$(document).ready(function() { $("#nav-link-bands").addClass("active"); }); <!-- highlight active page in nav --></script>
 
 {% end %}
\ No newline at end of file
diff --git a/templates/base.html b/templates/base.html
index 3935bde..1e3b4ed 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -13,10 +13,10 @@
     <meta property="twitter:title" content="Spothole"/>
     <meta name="description" content="An Amateur Radio spotting tool bringing together DX clusters and outdoor programmes, providing a universal JSON API and web interface."/>
     <meta property="og:description" content="An Amateur Radio spotting tool bringing together DX clusters and outdoor programmes, providing a universal JSON API and web interface."/>
-    <link rel="canonical" href="https://spothole.app/"/>
-    <meta property="og:url" content="https://spothole.app/"/>
-    <meta property="og:image" content="https://spothole.app/img/banner.png"/>
-    <meta property="twitter:image" content="https://spothole.app/img/banner.png"/>
+    <link rel="canonical" href="{{ baseurl }}{{ current_path }}"/>
+    <meta property="og:url" content="{{ baseurl }}{{ current_path }}"/>
+    <meta property="og:image" content="{{ baseurl }}/img/banner.png"/>
+    <meta property="twitter:image" content="{{ baseurl }}/img/banner.png"/>
     <meta name="twitter:card" content="summary_large_image"/>
     <meta name="author" content="Ian Renton"/>
     <meta property="og:locale" content="en_GB"/>
@@ -46,10 +46,10 @@
             crossorigin="anonymous"></script>
     <script src="https://cdn.jsdelivr.net/npm/tinycolor2@1.6.0/cjs/tinycolor.min.js"></script>
 
-    <script src="https://misc.ianrenton.com/jsutils/utils.js?v=1773053188"></script>
-    <script src="https://misc.ianrenton.com/jsutils/storage.js?v=1773053188"></script>
-    <script src="https://misc.ianrenton.com/jsutils/ui-ham.js?v=1773053188"></script>
-    <script src="https://misc.ianrenton.com/jsutils/geo.js?v=1773053188"></script>
+    <script src="https://misc.ianrenton.com/jsutils/utils.js?v=1773090023"></script>
+    <script src="https://misc.ianrenton.com/jsutils/storage.js?v=1773090023"></script>
+    <script src="https://misc.ianrenton.com/jsutils/ui-ham.js?v=1773090023"></script>
+    <script src="https://misc.ianrenton.com/jsutils/geo.js?v=1773090023"></script>
 
 </head>
 <body>
diff --git a/templates/map.html b/templates/map.html
index 2c2377f..88d41e7 100644
--- a/templates/map.html
+++ b/templates/map.html
@@ -70,9 +70,9 @@
 <script>
     let spotProvidersEnabledByDefault = {% raw json_encode(web_ui_options["spot-providers-enabled-by-default"]) %};
 </script>
-<script src="/js/common.js?v=1773053188"></script>
-<script src="/js/spotsbandsandmap.js?v=1773053188"></script>
-<script src="/js/map.js?v=1773053188"></script>
+<script src="/js/common.js?v=1773090023"></script>
+<script src="/js/spotsbandsandmap.js?v=1773090023"></script>
+<script src="/js/map.js?v=1773090023"></script>
 <script>$(document).ready(function() { $("#nav-link-map").addClass("active"); }); <!-- highlight active page in nav --></script>
 
 {% end %}
\ No newline at end of file
diff --git a/templates/spots.html b/templates/spots.html
index 3e21804..bded96f 100644
--- a/templates/spots.html
+++ b/templates/spots.html
@@ -87,9 +87,9 @@
 <script>
     let spotProvidersEnabledByDefault = {% raw json_encode(web_ui_options["spot-providers-enabled-by-default"]) %};
 </script>
-<script src="/js/common.js?v=1773053188"></script>
-<script src="/js/spotsbandsandmap.js?v=1773053188"></script>
-<script src="/js/spots.js?v=1773053188"></script>
+<script src="/js/common.js?v=1773090023"></script>
+<script src="/js/spotsbandsandmap.js?v=1773090023"></script>
+<script src="/js/spots.js?v=1773090023"></script>
 <script>$(document).ready(function() { $("#nav-link-spots").addClass("active"); }); <!-- highlight active page in nav --></script>
 
 {% end %}
\ No newline at end of file
diff --git a/templates/status.html b/templates/status.html
index 08e238c..d42cd5f 100644
--- a/templates/status.html
+++ b/templates/status.html
@@ -3,8 +3,8 @@
 
 <div id="status-container" class="row row-cols-1 row-cols-md-4 g-4 mt-4"></div>
 
-<script src="/js/common.js?v=1773053188"></script>
-<script src="/js/status.js?v=1773053188"></script>
+<script src="/js/common.js?v=1773090023"></script>
+<script src="/js/status.js?v=1773090023"></script>
 <script>$(document).ready(function() { $("#nav-link-status").addClass("active"); }); <!-- highlight active page in nav --></script>
 
 {% end %}
\ No newline at end of file