diff --git a/config-example.yml b/config-example.yml
index bb6e73e..5d65d6f 100644
--- a/config-example.yml
+++ b/config-example.yml
@@ -90,15 +90,22 @@ spot-providers:
     name: "RBN CW/RTTY"
     enabled: false
     port: 7000
+    # This setting doesn't affect the spot provider itself, or anything in the back-end of Spothole, just the web UI.
+    # By default spots from all enabled providers will be shown in the web UI. However, you might want RBN data to be
+    # received by Spothole but not shown on the web UI unless the user explicitly turns it on. For that behaviour,
+    # set enabled to true, but enabled-by-default-in-web-ui to false.
+    enabled-by-default-in-web-ui: false
   -
     class: "RBN"
     name: "RBN FT8"
     enabled: false
     port: 7001
+    enabled-by-default-in-web-ui: false
   -
     class: "UKPacketNet"
     name: "UK Packet Radio Net"
     enabled: false
+    enabled-by-default-in-web-ui: false
   -
     class: "XOTA"
     name: "39C3 TOTA"
diff --git a/core/config.py b/core/config.py
index 3af6c22..77f4871 100644
--- a/core/config.py
+++ b/core/config.py
@@ -5,7 +5,8 @@ import yaml
 
 # Check you have a config file
 if not os.path.isfile("config.yml"):
-    logging.error("Your config file is missing. Ensure you have copied config-example.yml to config.yml and updated it according to your needs.")
+    logging.error(
+        "Your config file is missing. Ensure you have copied config-example.yml to config.yml and updated it according to your needs.")
     exit()
 
 # Load config
@@ -17,4 +18,9 @@ MAX_ALERT_AGE = config["max-alert-age-sec"]
 SERVER_OWNER_CALLSIGN = config["server-owner-callsign"]
 WEB_SERVER_PORT = config["web-server-port"]
 ALLOW_SPOTTING = config["allow-spotting"]
-WEB_UI_OPTIONS = config["web-ui-options"]
\ No newline at end of file
+WEB_UI_OPTIONS = config["web-ui-options"]
+
+# For ease of config, each spot provider owns its own config about whether it should be enabled by default in the web UI
+# but for consistency we provide this to the front-end in web-ui-options because it has no impact outside of the web UI.
+WEB_UI_OPTIONS["spot-providers-enabled-by-default"] = [p["name"] for p in config["spot-providers"] if p["enabled"] and (
+            "enabled-by-default-in-web-ui" not in p or p["enabled-by-default-in-web-ui"] == True)]
diff --git a/server/handlers/api/options.py b/server/handlers/api/options.py
index a7a5084..d106a1f 100644
--- a/server/handlers/api/options.py
+++ b/server/handlers/api/options.py
@@ -40,6 +40,7 @@ class APIOptionsHandler(tornado.web.RequestHandler):
         # one of our proviers.
         if ALLOW_SPOTTING:
             options["spot_sources"].append("API")
+            options["web-ui-options"]["spot-providers-enabled-by-default"].append("API")
 
         self.write(json.dumps(options, default=serialize_everything))
         self.set_status(200)
diff --git a/webassets/.idea/.gitignore b/webassets/.idea/.gitignore
new file mode 100644
index 0000000..ab1f416
--- /dev/null
+++ b/webassets/.idea/.gitignore
@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/webassets/.idea/vcs.xml b/webassets/.idea/vcs.xml
new file mode 100644
index 0000000..6c0b863
--- /dev/null
+++ b/webassets/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/webassets/apidocs/openapi.yml b/webassets/apidocs/openapi.yml
index 3e0771b..ad9979c 100644
--- a/webassets/apidocs/openapi.yml
+++ b/webassets/apidocs/openapi.yml
@@ -1,4 +1,4 @@
-openapi: 3.0.4
+openapi: 3.1.0
 info:
   title: Spothole API
   description: |-
@@ -557,6 +557,12 @@ paths:
                         type: integer
                         example: 30
                         description: The suggested default "maximum spot age" that the web UI should retrieve from the API
+                      spot-providers-enabled-by-default:
+                        type: array
+                        description: A list of the spot providers that should be enabled in the web UI on first load, if the user hasn't already got a localStorage setting that sets their preference. This is to allow some high-volume providers like RBN to be enabled in Spothole's back-end and displayable in the web UI if the user wants, but by default the experience will not include them.
+                        items:
+                          type: string
+                          example: "POTA"
                       alert-count:
                         type: array
                         description: An array of suggested "alert counts" that the web UI can retrieve from the API
diff --git a/webassets/js/bands.js b/webassets/js/bands.js
index 8cf97c5..c3730f4 100644
--- a/webassets/js/bands.js
+++ b/webassets/js/bands.js
@@ -252,7 +252,7 @@ function loadOptions() {
         generateMultiToggleFilterCard("#dx-continent-options", "dx_continent", options["continents"]);
         generateMultiToggleFilterCard("#de-continent-options", "de_continent", options["continents"]);
         generateMultiToggleFilterCard("#mode-options", "mode_type", options["mode_types"]);
-        generateMultiToggleFilterCard("#source-options", "source", options["spot_sources"]);
+        generateSourcesMultiToggleFilterCard(options["spot_sources"], options["web-ui-options"]["spot-providers-enabled-by-default"]);
 
         // Load URL params. These may select things from the various filter & display options, so the function needs
         // to be called after these are set up, but if the URL params ask for "embedded mode", this will suppress
diff --git a/webassets/js/map.js b/webassets/js/map.js
index 67911c0..aa10f9d 100644
--- a/webassets/js/map.js
+++ b/webassets/js/map.js
@@ -184,7 +184,7 @@ function loadOptions() {
         generateMultiToggleFilterCard("#dx-continent-options", "dx_continent", options["continents"]);
         generateMultiToggleFilterCard("#de-continent-options", "de_continent", options["continents"]);
         generateMultiToggleFilterCard("#mode-options", "mode_type", options["mode_types"]);
-        generateMultiToggleFilterCard("#source-options", "source", options["spot_sources"]);
+        generateSourcesMultiToggleFilterCard(options["spot_sources"], options["web-ui-options"]["spot-providers-enabled-by-default"]);
 
         // Load URL params. These may select things from the various filter & display options, so the function needs
         // to be called after these are set up, but if the URL params ask for "embedded mode", this will suppress
diff --git a/webassets/js/spots.js b/webassets/js/spots.js
index c5c4b34..8ac14c3 100644
--- a/webassets/js/spots.js
+++ b/webassets/js/spots.js
@@ -422,7 +422,7 @@ function loadOptions() {
         generateMultiToggleFilterCard("#dx-continent-options", "dx_continent", options["continents"]);
         generateMultiToggleFilterCard("#de-continent-options", "de_continent", options["continents"]);
         generateMultiToggleFilterCard("#mode-options", "mode_type", options["mode_types"]);
-        generateMultiToggleFilterCard("#source-options", "source", options["spot_sources"]);
+        generateSourcesMultiToggleFilterCard(options["spot_sources"], options["web-ui-options"]["spot-providers-enabled-by-default"]);
 
         // Load URL params. These may select things from the various filter & display options, so the function needs
         // to be called after these are set up, but if the URL params ask for "embedded mode", this will suppress
diff --git a/webassets/js/spotsbandsandmap.js b/webassets/js/spotsbandsandmap.js
index cbbb195..3a79546 100644
--- a/webassets/js/spotsbandsandmap.js
+++ b/webassets/js/spotsbandsandmap.js
@@ -6,10 +6,9 @@ var spots = []
 function addBandToggleColourCSS(band_options) {
     var $style = $('<style>');
     band_options.forEach(o => {
-        // CSS doesn't like IDs with decimal points in, so we need to replace that
-        var cssFormattedBandName = o['name'] ? o['name'].replace('.', 'p') : "unknown";
-        $style.append(`#filter-button-label-band-${cssFormattedBandName} { border-color: ${bandToColor(o['name'])}; color: var(--bs-primary);}`);
-        $style.append(`.btn-check:checked + #filter-button-label-band-${cssFormattedBandName} { background-color: ${bandToColor(o['name'])}; color: ${bandToContrastColor(o['name'])};}`);
+        var domSafeName = o["name"].replace(/^[^A-Za-z0-9]+|[^\w]+/gi, "");
+        $style.append(`#filter-button-label-band-${domSafeName} { border-color: ${bandToColor(o['name'])}; color: var(--bs-primary);}`);
+        $style.append(`.btn-check:checked + #filter-button-label-band-${domSafeName} { background-color: ${bandToColor(o['name'])}; color: ${bandToContrastColor(o['name'])};}`);
     });
     $('html > head').append($style);
 }
@@ -18,10 +17,8 @@ function addBandToggleColourCSS(band_options) {
 function generateBandsMultiToggleFilterCard(band_options) {
     // Create a button for each option
     band_options.forEach(o => {
-        // CSS doesn't like IDs with decimal points in, so we need to replace that in the same way as when we originally
-        // queried the options endpoint and set our CSS.
-        var cssFormattedBandName = o['name'] ? o['name'].replace('.', 'p') : "unknown";
-        $("#band-options").append(`<input type="checkbox" class="btn-check filter-button-band storeable-checkbox" name="options" id="filter-button-band-${cssFormattedBandName}" value="${o['name']}" autocomplete="off" onClick="filtersUpdated()" checked><label class="btn btn-outline" id="filter-button-label-band-${cssFormattedBandName}" for="filter-button-band-${cssFormattedBandName}">${o['name']}</label> `);
+        var domSafeName = o["name"].replace(/^[^A-Za-z0-9]+|[^\w]+/gi, "");
+        $("#band-options").append(`<input type="checkbox" class="btn-check filter-button-band storeable-checkbox" name="options" id="filter-button-band-${domSafeName}" value="${o['name']}" autocomplete="off" onClick="filtersUpdated()" checked><label class="btn btn-outline" id="filter-button-label-band-${domSafeName}" for="filter-button-band-${domSafeName}">${o['name']}</label> `);
     });
     // Create All/None/Ham HF buttons
     $("#band-options").append(` <span style="display: inline-block"><button id="filter-button-band-all" type="button" class="btn btn-outline-secondary" onclick="toggleFilterButtons('band', true);">All</button> <button id="filter-button-band-none" type="button" class="btn btn-outline-secondary" onclick="toggleFilterButtons('band', false);">None</button> <button id="filter-button-band-none" type="button" class="btn btn-outline-secondary" onclick="setHamHFBandToggles();">Ham HF</button></span>`);
@@ -41,7 +38,8 @@ function setHamHFBandToggles() {
 function generateSIGsMultiToggleFilterCard(sig_options) {
     // Create a button for each option
     sig_options.forEach(o => {
-        $("#sig-options").append(`<input type="checkbox" class="btn-check filter-button-sig storeable-checkbox" name="options" id="filter-button-sig-${o['name']}" value="${o['name']}" autocomplete="off" onClick="filtersUpdated()" checked><label class="btn btn-outline-primary" id="filter-button-label-sig-${o['name']}" for="filter-button-sig-${o['name']}" title="${o['description']}"><i class="fa-solid ${sigToIcon(o['name'], 'fa-tower-cell')}"></i> ${o['name']}</label> `);
+        var domSafeName = o["name"].replace(/^[^A-Za-z0-9]+|[^\w]+/gi, "");
+        $("#sig-options").append(`<input type="checkbox" class="btn-check filter-button-sig storeable-checkbox" name="options" id="filter-button-sig-${domSafeName}" value="${o['name']}" autocomplete="off" onClick="filtersUpdated()" checked><label class="btn btn-outline-primary" id="filter-button-label-sig-${domSafeName}" for="filter-button-sig-${domSafeName}" title="${o['description']}"><i class="fa-solid ${sigToIcon(o['name'], 'fa-tower-cell')}"></i> ${o['name']}</label> `);
     });
     // Create a bonus "NO_SIG" / "General DX" option
     $("#sig-options").append(`<input type="checkbox" class="btn-check filter-button-sig storeable-checkbox" name="options" id="filter-button-sig-NO_SIG" value="NO_SIG" autocomplete="off" onClick="filtersUpdated()" checked><label class="btn btn-outline-primary" id="filter-button-label-sig-NO_SIG" for="filter-button-sig-NO_SIG"><i class="fa-solid fa-tower-cell"></i> General DX</label> `);
@@ -49,6 +47,20 @@ function generateSIGsMultiToggleFilterCard(sig_options) {
     $("#sig-options").append(` <span style="display: inline-block"><button id="filter-button-sig-all" type="button" class="btn btn-outline-secondary" onclick="toggleFilterButtons('sig', true);">All</button>&nbsp;<button id="filter-button-sig-none" type="button" class="btn btn-outline-secondary" onclick="toggleFilterButtons('sig', false);">None</button></span>`);
 }
 
+// Generate Sources filter card. This one is a minor special case as we create the buttons in the normal way, but then
+// set which ones are enabled by default based on config rather than having them all enabled by default. We also sanitise
+// names here for HTML elements.
+function generateSourcesMultiToggleFilterCard(source_options, sources_enabled_by_default) {
+    // Create a button for each option
+    source_options.forEach(o => {
+        var enable = sources_enabled_by_default.includes(o);
+        var domSafeName = o.replace(/^[^A-Za-z0-9]+|[^\w]+/gi, "");
+        $("#source-options").append(`<input type="checkbox" class="btn-check filter-button-source storeable-checkbox" name="options" id="filter-button-source-${domSafeName}" value="${o}" autocomplete="off" onClick="filtersUpdated()" ${enable ? "checked" : ""}><label class="btn btn-outline-primary" for="filter-button-source-${domSafeName}">${o}</label> `);
+    });
+    // Create All/None buttons
+    $("#source-options").append(` <span style="display: inline-block"><button id="filter-button-source-all" type="button" class="btn btn-outline-secondary" onclick="toggleFilterButtons('source', true);">All</button>&nbsp;<button id="filter-button-source-none" type="button" class="btn btn-outline-secondary" onclick="toggleFilterButtons('source', false);">None</button></span>`);
+}
+
 // Method called when any filter is changed to reload the spots and persist the filter settings.
 function filtersUpdated() {
     loadSpots();