diff --git a/.planning/phases/33-seo-output-audit-and-content/33-12-sm-demo-app.patch b/.planning/phases/33-seo-output-audit-and-content/33-12-sm-demo-app.patch
index 2bc47243..987168d6 100644
--- a/.planning/phases/33-seo-output-audit-and-content/33-12-sm-demo-app.patch
+++ b/.planning/phases/33-seo-output-audit-and-content/33-12-sm-demo-app.patch
@@ -798,10 +798,10 @@ index e2bec68..c344ec7 100755
  grep -qF 'SummerCMS basics' "$TMP/body" || fail "GET $SITE/quizzes: the quiz list is not rendered"
 diff --git a/seo_output_test.go b/seo_output_test.go
 new file mode 100644
-index 0000000..901ef44
+index 0000000..c7c5192
 --- /dev/null
 +++ b/seo_output_test.go
-@@ -0,0 +1,151 @@
+@@ -0,0 +1,171 @@
 +package main
 +
 +import (
@@ -822,16 +822,27 @@ index 0000000..901ef44
 +// TestSEOOutput checks the SEO output the Nuxt site reads from the demo
 +// binary (Phase 33, SC-1/SC-2) on the seeded content: /sitemap.xml is a
 +// sitemap index of per-type files on the public origin and a file lists
-+// the Journal posts without tag addresses (golem15.journal.tag_pages is
-+// false); the SEO plugin's site answer names the origin, the locales and
-+// the HTML sitemap; a seeded post resolves with one JSON-LD @graph and
-+// breadcrumbs through its category; and the route report is accepted with
-+// golem15.seo.route_report_token.
++// the Journal posts, while a tagged post adds no tag address and the tag's
++// path does not resolve (golem15.journal.tag_pages is false in
++// config/golem15.journal.yaml); the SEO plugin's site answer names the
++// origin, the locales and the HTML sitemap; a seeded post resolves with
++// one JSON-LD @graph and breadcrumbs through its category; and the route
++// report is accepted with golem15.seo.route_report_token.
 +func TestSEOOutput(t *testing.T) {
 +	skipUnlessSEOMounted(t)
 +	const reportToken = "seo-output-test-route-report-token"
 +	demo := bootDemo(t, visitorEnv, map[string]any{"golem15.seo.route_report_token": reportToken})
 +	mustSeed(t, demo)
++	// demo:seed tags no post; one tag makes the tag_pages check meaningful.
++	var tagID uint
++	if err := demo.DB.Raw(`INSERT INTO golem15_journal_tags (name, slug, created_at, updated_at)
++VALUES ('Releases', 'releases', NOW(), NOW()) RETURNING id`).Scan(&tagID).Error; err != nil || tagID == 0 {
++		t.Fatalf("tag: id=%d err=%v", tagID, err)
++	}
++	if err := demo.DB.Exec(`INSERT INTO golem15_journal_posts_tags (post_id, tag_id)
++SELECT id, ? FROM golem15_journal_posts WHERE slug = 'welcome-to-summercms'`, tagID).Error; err != nil {
++		t.Fatal(err)
++	}
 +	if out, err := runCommand(t, demo, "sitemap:rebuild"); err != nil {
 +		t.Fatalf("sitemap:rebuild: %v\n%s", err, out)
 +	}
@@ -871,7 +882,16 @@ index 0000000..901ef44
 +			t.Fatalf("sitemap-posts-1.xml does not list the seeded post:\n%s", posts)
 +		}
 +		if strings.Contains(index, "sitemap-tags-") || strings.Contains(posts, "/blog/tag/") {
-+			t.Fatalf("the sitemaps name tag addresses although golem15.journal.tag_pages is false")
++			t.Fatalf("the sitemaps name tag addresses although golem15.journal.tag_pages is false:\n%s", index)
++		}
++		var answer struct {
++			Action string `json:"action"`
++		}
++		if err := json.Unmarshal([]byte(get("/_seo/api/v1/resolve?url=/blog/tag/releases")), &answer); err != nil {
++			t.Fatal(err)
++		}
++		if answer.Action != "not_found" {
++			t.Fatalf("/blog/tag/releases resolves %q, want not_found (no tag pages)", answer.Action)
 +		}
 +	})
 +