diff --git a/src/components/CrewForm.tsx b/src/components/CrewForm.tsx
index 7a6813d..0b46600 100644
--- a/src/components/CrewForm.tsx
+++ b/src/components/CrewForm.tsx
@@ -26,6 +26,7 @@ import { SKATE_CREW_KIND, SKATE_SPOT_KIND, SKATE_SHOP_KIND, parseAddrCoord, ZAP_
 import { CREW_VIBE_KEYS, CREW_FOCUS_KEYS, CREW_FOCUS_DESC_KEYS, CREW_LOOKING_FOR_KEYS, CREW_ROLE_KEYS } from '@/lib/labelKeys';
 import { useCrewGoal } from '@/hooks/useCrewGoal';
 import { useCoordinator, useCoordinatorHealth } from '@/hooks/useCoordinator';
+import { normalizeUrlInput, sanitizeUrl } from '@/lib/sanitizeUrl';
 import { Nip05HandlesEditor } from '@/components/Nip05HandlesEditor';
 import { coordinatorAddUrl, crewCoordinatorInputValue, parseCrewCoordinatorInput, shortNpub } from '@/lib/coordinator';
 import { useRelays } from '@/lib/relays';
@@ -394,10 +395,14 @@ export function CrewForm({ existing }: CrewFormProps) {
   };
 
   const addSocial = () => {
-    const val = socialInput.trim();
+    const raw = socialInput.trim();
     setSocialInput('');
-    if (!val || socials.includes(val)) return;
-    setSocials((prev) => [...prev, val]);
+    if (!raw) return;
+    // Coerce a bare domain to https:// so it renders as a link; keep a non-URL
+    // (e.g. a @handle) as typed so nothing is silently dropped.
+    const safe = sanitizeUrl(normalizeUrlInput(raw)) ?? raw;
+    if (socials.includes(safe)) return;
+    setSocials((prev) => [...prev, safe]);
   };
 
   // Crew NIP-05 handles — up to 5, each verified against the founder's key.
@@ -550,11 +555,15 @@ export function CrewForm({ existing }: CrewFormProps) {
         }
       }
       if (image) tags.push(['image', image]);
-      if (website.trim()) tags.push(['website', website.trim()]);
+      {
+        const safe = website.trim() ? sanitizeUrl(normalizeUrlInput(website)) : null;
+        if (website.trim()) tags.push(['website', safe ?? website.trim()]);
+      }
       if (instagram.trim()) tags.push(['instagram', instagram.trim()]);
       if (bandName.trim()) tags.push(['band', bandName.trim()]);
-      if (bandUrl.trim() && /^https?:\/\//i.test(bandUrl.trim())) {
-        tags.push(['band-url', bandUrl.trim()]);
+      {
+        const safe = bandUrl.trim() ? sanitizeUrl(normalizeUrlInput(bandUrl)) : null;
+        if (bandUrl.trim()) tags.push(['band-url', safe ?? bandUrl.trim()]);
       }
       for (const s of socials) {
         if (s.trim()) tags.push(['social', s.trim()]);
@@ -1275,6 +1284,9 @@ export function CrewForm({ existing }: CrewFormProps) {
               <div className="space-y-2">
                 <Label htmlFor="crew-website">{t('socialUi.form.website')}</Label>
                 <Input id="crew-website" type="url" placeholder="https://crew.com" value={website} onChange={(e) => setWebsite(e.target.value)} className="bg-gray-800 border-gray-700" />
+                {website.trim() && !sanitizeUrl(normalizeUrlInput(website)) && (
+                  <p className="text-[11px] text-amber-400">{t('socialUi.form.invalidUrl')}</p>
+                )}
               </div>
               <div className="space-y-2 sm:col-span-2">
                 <Label htmlFor="crew-social">{t('socialUi.form.otherSocials')}</Label>
@@ -1349,6 +1361,9 @@ export function CrewForm({ existing }: CrewFormProps) {
                   autoCapitalize="none"
                   className="bg-gray-800 border-gray-700"
                 />
+                {bandUrl.trim() && !sanitizeUrl(normalizeUrlInput(bandUrl)) && (
+                  <p className="text-[11px] text-amber-400">{t('socialUi.form.invalidUrl')}</p>
+                )}
               </div>
             </div>
 
diff --git a/src/i18n/en.ts b/src/i18n/en.ts
index ff24bec..219d3fa 100644
--- a/src/i18n/en.ts
+++ b/src/i18n/en.ts
@@ -3922,6 +3922,7 @@ socialUi: {
       website: 'Website',
       yourRoles: 'Your roles (Team Leader)',
       youtubeDetected: 'YouTube video detected',
+      invalidUrl: 'Enter a valid link (e.g. https://example.com).',
     },
     groupConversation: {
       seoTitle: 'Group chat - SkateSpots',
diff --git a/src/i18n/es.ts b/src/i18n/es.ts
index ed88e74..41dba4b 100644
--- a/src/i18n/es.ts
+++ b/src/i18n/es.ts
@@ -3922,6 +3922,7 @@ socialUi: {
       website: 'Sitio web',
       yourRoles: 'Tus roles (líder del equipo)',
       youtubeDetected: 'Vídeo de YouTube detectado',
+      invalidUrl: 'Introduce un enlace válido (p. ej. https://ejemplo.com).',
     },
     groupConversation: {
       seoTitle: 'Chat de grupo - SkateSpots',