diff --git a/action.php b/action.php
index 2f27af2..c38ea2f 100644
--- a/action.php
+++ b/action.php
@@ -270,6 +270,10 @@ class action_plugin_botmon extends DokuWiki_Action_Plugin {
 			echo  DOKU_TAB . '};' . NL;
 
 			echo '</script>' . NL;
+
+			// insert a warning message for users without JavaScript:
+			echo '<dialog open closedby="any" id="BM__NoJSWarning"><p>' . $this->getLang('bm_noJsWarning') . '</p></dialog>' . NL;
+
 		}
 	}
 
diff --git a/captcha.js b/captcha.js
index 4a72efe..8a059e2 100644
--- a/captcha.js
+++ b/captcha.js
@@ -6,6 +6,11 @@
 const $BMCaptcha = {
 
 	init: function() {
+
+		// hide the NoJS warning:
+		document.getElementById('BM__NoJSWarning').close();
+
+		// install the captcha:
 		document.getElementsByTagName('body')[0].classList.add('botmon_captcha');
 		$BMCaptcha._cbDly = 1.5;
 		$BMCaptcha.install()
diff --git a/config/known-ipranges.json b/config/known-ipranges.json
index 11449a3..3d26f0f 100644
--- a/config/known-ipranges.json
+++ b/config/known-ipranges.json
@@ -6,7 +6,6 @@
 		{"id": "brasilnet", "name": "BrasilNet"},
 		{"id": "charter", "name": "Charter Inc. Range"},
 		{"id": "chinanet", "name": "ChinaNet"},
-		{"id": "cloudflare", "name": "Cloudflare Network"},
 		{"id": "cnisp", "name": "China ISP Range"},
 		{"id": "cnmob", "name": "China Mobile"},
 		{"id": "domtehniki", "name": "Dom Tehniki / WS Telecom"},
@@ -108,7 +107,6 @@
 		{"from": "2603:8000::::::", "to": "2603:80ff:ffff:ffff:ffff:ffff:ffff:ffff", "m": 24, "g": "charter"},
 		{"from": "2607:a400::::::", "to": "2607:a400:ffff:ffff:ffff:ffff:ffff:ffff", "m": 32, "g": "zenlayer"},
 		{"from": "2804:::::::", "to": "2804:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF", "m": 16, "g": "misc_sa"},
-		{"from": "2a09:bac3::::::", "to": "2a09:bac3:ffff:ffff:ffff:ffff:ffff:ffff", "m": 32,"g": "cloudflare"},
 		{"from": "2a0a:4cc0::::::", "to": "2a0a:4cc0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF", "g": "netcup"}
 	]
 }
\ No newline at end of file
diff --git a/lang/de/lang.php b/lang/de/lang.php
index 1c6bd10..f84a16e 100644
--- a/lang/de/lang.php
+++ b/lang/de/lang.php
@@ -12,3 +12,4 @@ $lang['bm_dlgConfirm']   = 'Klicke, um zu best&auml;tigen.';
 $lang['bm_dlgChecking']  = 'Wird &uuml;berpr&uuml;ft&nbsp;&hellip;';
 $lang['bm_dlgLoading']   = 'Seite wird geladen&nbsp;&hellip;';
 $lang['bm_dlgError']     = 'Es ist ein Fehler aufgetreten.';
+$lang['bm_noJsWarning']  = 'Bitte aktivieren Sie JavaScript, um diese Seite anzuzeigen.';
diff --git a/lang/en/lang.php b/lang/en/lang.php
index b5b9334..d455fde 100644
--- a/lang/en/lang.php
+++ b/lang/en/lang.php
@@ -12,3 +12,4 @@ $lang['bm_dlgConfirm']   = 'Click to confirm.';
 $lang['bm_dlgChecking']  = 'Checking&nbsp;&hellip;';
 $lang['bm_dlgLoading']   = 'Loading page&nbsp;&hellip;';
 $lang['bm_dlgError']     = 'An error occured.';
+$lang['bm_noJsWarning']  = 'This page requires JavaScript to be enabled.';
diff --git a/lang/fr/lang.php b/lang/fr/lang.php
new file mode 100644
index 0000000..b8af382
--- /dev/null
+++ b/lang/fr/lang.php
@@ -0,0 +1,9 @@
+<?php
+/**
+ * French language file for BotMon plugin
+ *
+ * @author Sascha Leib <ad@hominem.info>
+ */
+
+// Captcha dialog locale strings:
+$lang['bm_noJsWarning']  = 'Veuillez activer JavaScript pour afficher cette page.';
diff --git a/style.less b/style.less
index 593404c..67a5325 100644
--- a/style.less
+++ b/style.less
@@ -106,7 +106,19 @@ body.botmon_captcha {
 	}
 }
 
-// smaller screens:
+// no js warning
+#BM__NoJSWarning {
+	position: fixed;
+	bottom: calc(50vh - 2.5rem);
+	width: 100%; max-width: fit-content;
+	margin: 0 auto;
+	padding: .25rem 1rem;
+	border-radius: .5rem;
+	border: red solid 2pt;
+	box-shadow: rgba(128, 0, 0, 0.5) .25rem .25rem .5rem;
+}
+
+// captcha on smaller screens:
 @media (max-width: 480px) {
 	body.botmon_captcha #botmon_captcha_box {
 		width: 100vw;