diff --git a/.github/scripts/ensure-pages-domain.mjs b/.github/scripts/ensure-pages-domain.mjs
index bb3ad42..bb06d97 100644
--- a/.github/scripts/ensure-pages-domain.mjs
+++ b/.github/scripts/ensure-pages-domain.mjs
@@ -24,7 +24,6 @@ for (const [key, value] of Object.entries(required)) {
 
 const API_BASE = 'https://api.cloudflare.com/client/v4';
 const DNS_TOKEN = CF_DNS_API_TOKEN || CF_API_TOKEN;
-// Bump marker to trigger workflows when testing permissions.
 
 class DnsAuthError extends Error {}
 
@@ -97,6 +96,18 @@ async function ensurePagesDomainBinding() {
   throw new Error(`Failed ensuring Pages custom domain:\n${stringifyError(result.data)}`);
 }
 
+async function getPagesProjectSubdomain() {
+  const project = await cfRequest('GET', `/accounts/${CF_ACCOUNT_ID}/pages/projects/${CF_PROJECT_NAME}`);
+  if (!project.ok) {
+    throw new Error(`Failed getting Pages project info:\n${stringifyError(project.data)}`);
+  }
+
+  const subdomain = project.data?.result?.subdomain;
+  if (!subdomain) {
+    throw new Error('Pages project subdomain not found in API response.');
+  }
+  return subdomain;
+}
 async function getPagesDomainDetails() {
   const detail = await cfRequest(
     'GET',
@@ -188,7 +199,7 @@ async function upsertDnsRecord(zoneId, record) {
 
 async function ensureDnsForCustomDomain() {
   const zoneId = await ensureZoneId();
-  const target = CF_TARGET_DOMAIN || `${CF_PROJECT_NAME}.pages.dev`;
+  const target = CF_TARGET_DOMAIN || (await getPagesProjectSubdomain());
   const record = {
     type: 'CNAME',
     name: normalizeRecordName(CF_CUSTOM_DOMAIN),
diff --git a/.github/workflows/deploy-archery-pages.yml b/.github/workflows/deploy-archery-pages.yml
index 1eb8c29..3acf7e5 100644
--- a/.github/workflows/deploy-archery-pages.yml
+++ b/.github/workflows/deploy-archery-pages.yml
@@ -76,5 +76,4 @@ jobs:
           CF_PROJECT_NAME: archery
           CF_CUSTOM_DOMAIN: ${{ env.ARCHERY_CUSTOM_DOMAIN }}
           CF_ZONE_NAME: taylorhere.com
-          CF_TARGET_DOMAIN: archery.pages.dev
         run: node .github/scripts/ensure-pages-domain.mjs
diff --git a/.github/workflows/deploy-main-site-pages.yml b/.github/workflows/deploy-main-site-pages.yml
index 33e1439..066dac9 100644
--- a/.github/workflows/deploy-main-site-pages.yml
+++ b/.github/workflows/deploy-main-site-pages.yml
@@ -60,5 +60,4 @@ jobs:
           CF_PROJECT_NAME: taylorhere
           CF_CUSTOM_DOMAIN: ${{ env.MAIN_CUSTOM_DOMAIN }}
           CF_ZONE_NAME: taylorhere.com
-          CF_TARGET_DOMAIN: taylorhere.pages.dev
         run: node .github/scripts/ensure-pages-domain.mjs