diff --git a/docs/content/docs/api/reference/contacts.mdx b/docs/content/docs/api/reference/contacts.mdx
index fffe6cd8..a72fae15 100644
--- a/docs/content/docs/api/reference/contacts.mdx
+++ b/docs/content/docs/api/reference/contacts.mdx
@@ -982,7 +982,7 @@ Auth: **Scope** `READ_CRM` · **Org permission** `view_contacts`
 
 ## Segments
 
-Segments are saved contact audiences: a list of conditions plus per-contact manual overrides. Membership is evaluated live on every read, so a segment never needs rebuilding. Every segment endpoint takes the contact scopes, except enrolling into a campaign, which writes leads and takes `WRITE_CAMPAIGNS`. Every endpoint here addresses a segment by its `id`; besides `GET /segments`, the dashboard shows it on the segment page header (click to copy) and in the row menu of the Segments tab.
+Segments are saved contact audiences: a list of conditions plus per-contact manual overrides. Membership is evaluated live on every read, so a segment never needs rebuilding. Every segment endpoint takes the contact scopes, except enrolling into a campaign, which writes leads and takes `WRITE_CAMPAIGNS`. Endpoints that operate on an existing segment address it by its `id`; besides `GET /segments`, the dashboard shows that ID on the segment page header (click to copy) and in the row menu of the Segments tab.
 
 A segment object:
 
diff --git a/web/src/app/app/contacts/segments/[id]/page.tsx b/web/src/app/app/contacts/segments/[id]/page.tsx
index 978382dc..2e41856a 100644
--- a/web/src/app/app/contacts/segments/[id]/page.tsx
+++ b/web/src/app/app/contacts/segments/[id]/page.tsx
@@ -149,16 +149,22 @@ function SegmentIdChip({ id }: { id: string }) {
         }
     }
     return (
-        <button
-            type="button"
-            onClick={copy}
-            title="Copy segment ID"
-            className="mt-1 inline-flex items-center gap-1.5 max-w-full font-mono text-[10.5px] text-slate-400 hover:text-slate-700 transition-colors"
-        >
-            <span className="uppercase tracking-[0.14em] font-sans font-medium text-[9.5px]">ID</span>
-            <span className="truncate">{id}</span>
-            {copied ? <CheckIcon className="w-3 h-3 text-emerald-600 shrink-0" /> : <CopyIcon className="w-3 h-3 shrink-0" />}
-        </button>
+        <>
+            <button
+                type="button"
+                onClick={copy}
+                aria-label={copied ? "Segment ID copied" : "Copy segment ID"}
+                title="Copy segment ID"
+                className="mt-1 inline-flex items-center gap-1.5 max-w-full font-mono text-[10.5px] text-slate-400 hover:text-slate-700 transition-colors"
+            >
+                <span className="uppercase tracking-[0.14em] font-sans font-medium text-[9.5px]">ID</span>
+                <span className="truncate">{id}</span>
+                {copied ? <CheckIcon className="w-3 h-3 text-emerald-600 shrink-0" /> : <CopyIcon className="w-3 h-3 shrink-0" />}
+            </button>
+            <span className="sr-only" role="status" aria-live="polite">
+                {copied ? "Segment ID copied" : ""}
+            </span>
+        </>
     );
 }