diff --git a/.env.example b/.env.example
index 553d95c..a8cf0a9 100644
--- a/.env.example
+++ b/.env.example
@@ -5,7 +5,7 @@
 MOLLIE_API_KEY=test_xxxxxxxxxxxxxxxxxxxxxxxxxxxx
 
 # ── Public URL (used for Mollie redirects and webhooks) ──
-NEXT_PUBLIC_BASE_URL=https://payment.collaborative-finance.net
+NEXT_PUBLIC_BASE_URL=https://crypto-commons.org
 
 # ── Google Sheets (registration data) ──
 # JSON string of the service account key
diff --git a/app/api/create-checkout-session/route.ts b/app/api/create-checkout-session/route.ts
index ff5c8e4..bb1535b 100644
--- a/app/api/create-checkout-session/route.ts
+++ b/app/api/create-checkout-session/route.ts
@@ -9,7 +9,7 @@ import {
 } from "@/lib/event.config"
 
 // Public base URL
-const BASE_URL = process.env.NEXT_PUBLIC_BASE_URL || "https://payment.collaborative-finance.net"
+const BASE_URL = process.env.NEXT_PUBLIC_BASE_URL || "https://crypto-commons.org"
 
 export async function POST(request: NextRequest) {
   try {
diff --git a/app/layout.tsx b/app/layout.tsx
index 1cfaa90..8aec43c 100644
--- a/app/layout.tsx
+++ b/app/layout.tsx
@@ -7,7 +7,7 @@ const _geist = Geist({ subsets: ["latin"] })
 const _geistMono = Geist_Mono({ subsets: ["latin"] })
 
 export const metadata: Metadata = {
-  metadataBase: new URL("https://payment.collaborative-finance.net"),
+  metadataBase: new URL("https://crypto-commons.org/cofi4-payment"),
   title: "CoFi 2026 — Registration",
   description:
     "Register for CoFi 2026 — Collaborative Finance. Reimagining finance for the commons.",
@@ -22,7 +22,7 @@ export const metadata: Metadata = {
     title: "CoFi 2026 — Registration",
     description:
       "Register for CoFi 2026 — Collaborative Finance. Reimagining finance for the commons.",
-    url: "https://payment.collaborative-finance.net",
+    url: "https://crypto-commons.org/cofi4-payment",
     siteName: "CoFi",
     locale: "en_US",
     type: "website",
diff --git a/docker-compose.yml b/docker-compose.yml
index 535b3a6..01ce65a 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -10,7 +10,7 @@ services:
       - INFISICAL_PROJECT_SLUG=cofi-register
       # Non-secret config (defaults inline)
       - NODE_ENV=production
-      - NEXT_PUBLIC_BASE_URL=${NEXT_PUBLIC_BASE_URL:-https://payment.collaborative-finance.net}
+      - NEXT_PUBLIC_BASE_URL=${NEXT_PUBLIC_BASE_URL:-https://crypto-commons.org}
       - GOOGLE_SHEET_NAME=${GOOGLE_SHEET_NAME:-Registrations}
       - BOOKING_SHEET_NAME=${BOOKING_SHEET_NAME:-Sheet1}
       - SMTP_HOST=${SMTP_HOST:-mail.rmail.online}
@@ -22,7 +22,7 @@ services:
       - LISTMONK_LIST_ID=${LISTMONK_LIST_ID:-27}
     labels:
       - "traefik.enable=true"
-      - "traefik.http.routers.cofi-register.rule=Host(`payment.collaborative-finance.net`) || Host(`cofi-register-staging.jeffemmett.com`)"
+      - "traefik.http.routers.cofi-register.rule=Host(`cofi-register-staging.jeffemmett.com`)"
       - "traefik.http.routers.cofi-register.entrypoints=web,websecure"
       - "traefik.http.services.cofi-register.loadbalancer.server.port=3000"
     healthcheck:
diff --git a/embed-snippet.html b/embed-snippet.html
index dee8467..baf9814 100644
--- a/embed-snippet.html
+++ b/embed-snippet.html
@@ -1,15 +1,15 @@
 <!--
   CoFi Registration Button — Embed Snippet
 
-  Copy-paste this anywhere on collaborative-finance.net to add a registration button.
-  The button links to the standalone registration app at payment.collaborative-finance.net.
+  Copy-paste this anywhere to add a CoFi registration button.
+  The button links to the registration page at crypto-commons.org/cofi4-payment.
 
   Customize: Change the button text, colors, or styling below to match your site.
 -->
 
 <!-- Option 1: Styled button (self-contained, no external CSS needed) -->
 <a
-  href="https://payment.collaborative-finance.net"
+  href="https://crypto-commons.org/cofi4-payment"
   style="
     display: inline-block;
     padding: 14px 32px;
@@ -30,7 +30,7 @@
 
 <!-- Option 2: Minimal link (use your own CSS) -->
 <!--
-<a href="https://payment.collaborative-finance.net" class="your-button-class">
+<a href="https://crypto-commons.org/cofi4-payment" class="your-button-class">
   Register for CoFi 2026
 </a>
 -->
diff --git a/lib/event.config.ts b/lib/event.config.ts
index cc1c6d5..0029877 100644
--- a/lib/event.config.ts
+++ b/lib/event.config.ts
@@ -215,7 +215,7 @@ export const EMAIL_BRANDING = {
 
 export const LINKS = {
   website: "https://www.collaborative-finance.net",
-  register: "https://payment.collaborative-finance.net",
+  register: "https://crypto-commons.org/cofi4-payment",
   telegram: "", // TBD — set when community channel is created
   community: "", // TBD — set when community channel is created
   contactEmail: "cofi.gathering@gmail.com",