diff --git a/README.md b/README.md
index bf70c4c..4f1b560 100644
--- a/README.md
+++ b/README.md
@@ -85,11 +85,16 @@ How a browser stays signed in:
 With `TERDUT_PUBLIC_URL` set, tapping a push notification opens the incident in
 the web UI (`/incidents/{id}`).
 
-A **Team** tab holds everything a team owns: the on-call rota, the escalation
-ladder, the alert sources with their keys, the dead man's switches and the
-membership. An owner edits it; a member sees the same page read-only, because
-the server refuses their writes anyway. Somebody in more than one team picks
-between them at the top.
+A **Team** tab holds everything a team owns, in five sub-sections with a URL
+each and a strip across the top to move between them: the on-call rota
+(`/team/rota`), the membership (`/team/members`), the escalation ladder
+(`/team/escalation`), the alert sources with their keys (`/team/sources`) and
+the dead man's switches (`/team/deadman`). `/team` itself is an overview — who
+is on call today, how many members and owners, how many ladder levels, how many
+keys and how many switches — so a page fetches only what it shows. An owner
+edits it; a member sees the same pages read-only, because the server refuses
+their writes anyway. Somebody in more than one team picks between them above
+the strip, since the choice changes the subject of all five.
 
 The rota is a month at a time, one coloured initial per day with a legend
 underneath, and it says how many days are left uncovered — the question a rota
diff --git a/internal/web/static/app.css b/internal/web/static/app.css
index 8002803..d7e790f 100644
--- a/internal/web/static/app.css
+++ b/internal/web/static/app.css
@@ -836,11 +836,14 @@ button.rota-day:hover { background: var(--surface-2); }
 
 .signup-intro { margin: 0 0 4px; font-size: 14px; color: var(--muted); }
 
-/* --- admin sub-navigation ------------------------------------------------
-   A strip of links across the top of every admin page, one per sub-section.
-   Deliberately not .chip: chips filter what a page already shows, here and in
-   the queue, and these four go somewhere. Same aria-current convention as the
-   tab bar, so the state lives on the attribute rather than in a class. */
+/* --- sub-navigation -------------------------------------------------------
+   A strip of links across the top of every Admin and every Team page, one per
+   sub-section. Deliberately not .chip: chips filter what a page already shows,
+   here and in the queue, and these go somewhere. Same aria-current convention
+   as the tab bar, so the state lives on the attribute rather than in a class.
+
+   Six entries do not fit a phone's width, which is what the horizontal scroll
+   below is for -- the Team tab's strip is the one that needs it. */
 .subnav {
   display: flex; gap: 2px;
   margin: 12px auto 0;
@@ -857,13 +860,15 @@ button.rota-day:hover { background: var(--surface-2); }
 .subnav-link:hover { color: var(--text); }
 .subnav-link[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }
 
-/* The overview at /admin. The strip above already links to the three, so these
-   carry the counts, which is the part a menu cannot say. */
-.admin-menu { display: grid; gap: 10px; margin-top: 16px; }
+/* The overview a tab opens on, at /admin and at /team. The strip above already
+   links to the sections, so these carry the counts, which is the part a menu
+   cannot say. Not named for either tab: both use it, and the one that renamed
+   .user-link to .row-link is the same rename for the same reason. */
+.overview-menu { display: grid; gap: 10px; margin-top: 16px; }
 /* The grid's gap is the spacing here, so .card + .card must not add its own. */
-.admin-menu .card + .card { margin-top: 0; }
-.admin-menu-item { display: block; padding: 14px; }
-.admin-menu-item:hover { background: var(--surface-hover); }
-.admin-menu-head { display: flex; align-items: baseline; gap: 8px; }
-.admin-menu-count { margin-left: auto; color: var(--muted); font-size: 18px; font-weight: 700; }
-.admin-menu-item p { margin: 4px 0 0; }
+.overview-menu .card + .card { margin-top: 0; }
+.overview-item { display: block; padding: 14px; }
+.overview-item:hover { background: var(--surface-hover); }
+.overview-head { display: flex; align-items: baseline; gap: 8px; }
+.overview-count { margin-left: auto; color: var(--muted); font-size: 18px; font-weight: 700; }
+.overview-item p { margin: 4px 0 0; }
diff --git a/internal/web/static/js/admin.js b/internal/web/static/js/admin.js
index 1e2a766..1f5af30 100644
--- a/internal/web/static/js/admin.js
+++ b/internal/web/static/js/admin.js
@@ -13,7 +13,7 @@
 // gate.
 
 import * as api from './api.js';
-import { h, clear, spinner, confirm } from './ui.js';
+import { h, clear, spinner, confirm, menuCard } from './ui.js';
 import { state, myID } from './state.js';
 
 const view = () => document.getElementById('view-admin');
@@ -123,26 +123,17 @@ function overview() {
   const people = [`${admins} ${admins === 1 ? 'administrator' : 'administrators'}`];
   if (disabled > 0) people.push(`${disabled} disabled`);
 
-  return h('div', { class: 'admin-menu' },
-    menuItem('/admin/teams', 'Teams', data.teams.length,
+  return h('div', { class: 'overview-menu' },
+    menuCard('/admin/teams', 'Teams', data.teams.length,
       open > 0
         ? `${open} open ${open === 1 ? 'incident' : 'incidents'} between them.`
         : 'Nothing open anywhere.'),
-    menuItem('/admin/users', 'Users', data.users.length, `${people.join(', ')}.`),
-    menuItem('/admin/settings', 'Settings', null,
+    menuCard('/admin/users', 'Users', data.users.length, `${people.join(', ')}.`),
+    menuCard('/admin/settings', 'Settings', null,
       'How the server behaves, and where it is plugged in.'),
   );
 }
 
-function menuItem(href, label, count, note) {
-  return h('a', { class: 'card admin-menu-item', href },
-    h('div', { class: 'admin-menu-head' },
-      h('strong', { text: label }),
-      count != null && h('span', { class: 'admin-menu-count', text: String(count) })),
-    h('p', { class: 'muted small', text: note }),
-  );
-}
-
 // --- teams -----------------------------------------------------------------
 
 function teamsCard() {
diff --git a/internal/web/static/js/app.js b/internal/web/static/js/app.js
index 4c96e2d..5e89698 100644
--- a/internal/web/static/js/app.js
+++ b/internal/web/static/js/app.js
@@ -40,22 +40,26 @@ function parseRoute(pathname) {
   const g = pathname.match(/^\/admin\/teams\/(\d+)\/?$/);
   if (g) return { section: 'adminteam', team: Number(g[1]) };
   const name = pathname.replace(/^\/|\/$/g, '');
-  // The Admin tab's sub-sections are routes of their own. admin.js owns the
-  // table of them, since it also builds the strip that links to them.
+  // The Admin and Team tabs' sub-sections are routes of their own. Each view
+  // owns the table of its own, since each also builds the strip that links to
+  // them; /team is in team.TABS as the overview, so it is matched here too.
   const t = admin.TABS.find((x) => x.path === `/${name}`);
   if (t) return { section: 'admin', tab: t.tab };
-  if (name === 'oncall' || name === 'alerts' || name === 'team' || name === 'more') return { section: name };
+  const tt = team.TABS.find((x) => x.path === `/${name}`);
+  if (tt) return { section: 'team', tab: tt.tab };
+  if (name === 'oncall' || name === 'alerts' || name === 'more') return { section: name };
   return { section: 'queue', incident: null };
 }
 
-// What the top bar and the document title call this route. Admin's sub-sections
-// are pages in their own right, so they say which one rather than "Admin" four
-// times; the overview keeps the tab's own name.
+// What the top bar and the document title call this route. The sub-sections of
+// Admin and Team are pages in their own right, so they say which one rather
+// than the tab's name four or six times; either overview keeps the tab's own
+// name. A tab may carry a `title` where its strip label is too short to name a
+// page on its own.
 function title(r) {
-  const t = r.section === 'admin' && r.tab
-    ? admin.TABS.find((x) => x.tab === r.tab)
-    : null;
-  return t ? t.label : SECTIONS[r.section].title;
+  const tabs = r.section === 'admin' ? admin.TABS : r.section === 'team' ? team.TABS : null;
+  const t = tabs && r.tab ? tabs.find((x) => x.tab === r.tab) : null;
+  return t ? (t.title || t.label) : SECTIONS[r.section].title;
 }
 
 let route = parseRoute(location.pathname);
diff --git a/internal/web/static/js/team.js b/internal/web/static/js/team.js
index 8ae2dee..1715ed8 100644
--- a/internal/web/static/js/team.js
+++ b/internal/web/static/js/team.js
@@ -1,8 +1,16 @@
-// Team settings: the rota, who is in the team, where its alerts come from,
-// what it escalates through, and which of its alerts are heartbeats.
+// One team: the rota, who is in it, where its alerts come from, what it
+// escalates through, and which of its alerts are heartbeats.
 //
-// Everything here was API-only until now, which meant a team owner had to use
-// curl to set up escalation — the feature this whole line of work exists for.
+// Everything here was API-only until v0.12.0, which meant a team owner had to
+// use curl to set up escalation — the feature this whole line of work exists
+// for.
+//
+// Each of those five is a route of its own behind a strip across the top, with
+// /team an overview, the way 07914d5 split the Admin tab. The same reasons
+// applied here and more sharply: five cards on one page meant no way to link
+// somebody to the escalation ladder, no way to the switches but past a month
+// of rota, and a poll that refetched six endpoints however little of the page
+// you were looking at.
 //
 // The server decides what a role may do: an owner's edits succeed, a member's
 // are refused with 403, and a non-member gets 404 for the lot. This view hides
@@ -10,19 +18,48 @@
 // than no form, but it is not the thing enforcing anything.
 
 import * as api from './api.js';
-import { h, clear, spinner, confirm, icon, openSheet, closeSheet } from './ui.js';
+import { h, clear, spinner, confirm, icon, openSheet, closeSheet, menuCard } from './ui.js';
 import { state, currentTeam, users as allUsers, myID } from './state.js';
 import { isoDate, addDays, mondayOf, initial } from './format.js';
 
 const view = () => document.getElementById('view-team');
 
+// The sub-sections, in the order the strip shows them. The overview is /team
+// itself, so it has no tab of its own. This table is the only place the six
+// routes are written down: app.js parses against it and the strip is built
+// from it, the same contract admin.js has.
+//
+// `label` is what the strip says and `title` what the top bar and the document
+// title say, where a strip label alone would be too thin to name a page —
+// "Sources · terdut" in a browser tab does not say sources of what.
+export const TABS = [
+  { tab: null, path: '/team', label: 'Overview' },
+  { tab: 'rota', path: '/team/rota', label: 'Rota', title: 'On-call rota' },
+  { tab: 'members', path: '/team/members', label: 'Members' },
+  { tab: 'escalation', path: '/team/escalation', label: 'Escalation' },
+  { tab: 'sources', path: '/team/sources', label: 'Sources', title: 'Alert sources' },
+  { tab: 'deadman', path: '/team/deadman', label: 'Switches', title: 'Dead man’s switches' },
+];
+
 let teamID = null;
-let data = null; // { team, members, integrations, escalation, deadman, schedule, users }
+// Which sub-section is open. Remembered rather than passed, because the poll
+// loop calls refresh() with no route.
+let tab = null;
+let data = null; // { team, ... }; which fields are present varies by tab
 let error = null;
 let freshKey = null; // an integration key, shown once, until the view is left
 
-export function show() {
-  if (!data) clear(view(), spinner());
+export function show(route) {
+  const next = route?.tab ?? null;
+  // A different sub-section wants different data, so the old answer goes
+  // rather than being shown under the new heading until the fetch lands. The
+  // ladder draft goes with it: it is an edit of the page being left.
+  if (next !== tab) {
+    tab = next;
+    data = null;
+    draft = null;
+  }
+  if (!data) clear(view(), subnav(), spinner());
   refresh();
 }
 
@@ -39,18 +76,8 @@ export async function refresh() {
     return;
   }
   teamID = team.id;
-  const grid = gridDays();
   try {
-    // A member may read all of this; only the writes are owner-only.
-    const [members, integrations, escalation, deadman, schedule, users] = await Promise.all([
-      api.teamMembers(team.id),
-      api.integrations(team.id),
-      api.escalation(team.id),
-      api.deadman(team.id),
-      api.schedule(team.id, isoDate(grid.start), isoDate(addDays(grid.start, grid.count - 1))),
-      allUsers(),
-    ]);
-    data = { team, members, integrations, escalation, deadman, schedule, users };
+    data = { team, ...(await load(team.id)) };
     error = null;
   } catch (err) {
     error = err.message;
@@ -58,6 +85,45 @@ export async function refresh() {
   render();
 }
 
+// Only what the open sub-section shows. A member may read all of it; only the
+// writes are owner-only.
+//
+// Three of the five need the member list besides their own endpoint, and for
+// the same reason each time: a rota, a ladder target and a role are all a
+// person, and the page has to be able to name them. The overview is the one
+// that fetches everything, because saying how much of each there is means
+// asking each of them.
+async function load(id) {
+  if (tab === 'rota') {
+    const grid = gridDays();
+    const [members, schedule] = await Promise.all([
+      api.teamMembers(id),
+      api.schedule(id, isoDate(grid.start), isoDate(addDays(grid.start, grid.count - 1))),
+    ]);
+    return { members, schedule };
+  }
+  if (tab === 'members') {
+    const [members, users] = await Promise.all([api.teamMembers(id), allUsers()]);
+    return { members, users };
+  }
+  if (tab === 'escalation') {
+    const [members, escalation] = await Promise.all([api.teamMembers(id), api.escalation(id)]);
+    return { members, escalation };
+  }
+  if (tab === 'sources') return { integrations: await api.integrations(id) };
+  if (tab === 'deadman') return { deadman: await api.deadman(id) };
+
+  const grid = gridDays();
+  const [members, integrations, escalation, deadman, schedule] = await Promise.all([
+    api.teamMembers(id),
+    api.integrations(id),
+    api.escalation(id),
+    api.deadman(id),
+    api.schedule(id, isoDate(grid.start), isoDate(addDays(grid.start, grid.count - 1))),
+  ]);
+  return { members, integrations, escalation, deadman, schedule };
+}
+
 function isOwner() {
   return data?.team?.role === 'owner' || state.me?.user?.is_admin;
 }
@@ -70,19 +136,43 @@ function render() {
     return;
   }
   clear(view(),
-    error && h('div', { class: 'load-error', text: `Showing older data: ${error}` }),
+    subnav(),
     teamPicker(),
-    !isOwner() && h('div', { class: 'card' },
+    // Said once on the overview rather than on all six pages: it explains why
+    // the controls further down are missing, and a page of nothing but the
+    // rota has no controls to explain.
+    !isOwner() && tab === null && h('div', { class: 'card' },
       h('p', { class: 'muted small', text: 'You are a member of this team. Only an owner can change its settings.' })),
-    scheduleCard(),
-    escalationCard(),
-    integrationsCard(),
-    deadmanCard(),
-    membersCard(),
+    error && h('div', { class: 'load-error', text: `Showing older data: ${error}` }),
+    section(),
   );
 }
 
+function section() {
+  if (tab === 'rota') return scheduleCard();
+  if (tab === 'members') return membersCard();
+  if (tab === 'escalation') return escalationCard();
+  if (tab === 'sources') return integrationsCard();
+  if (tab === 'deadman') return deadmanCard();
+  return overview();
+}
+
+// The strip across the top of every team page. Ordinary links rather than
+// buttons, because these are six URLs: app.js intercepts the click, the
+// browser's Back walks them, and a reload lands where you were.
+function subnav() {
+  return h('nav', { class: 'subnav', 'aria-label': 'Team' },
+    TABS.map((t) => h('a', {
+      class: 'subnav-link',
+      href: t.path,
+      text: t.label,
+      'aria-current': t.tab === tab ? 'page' : null,
+    })));
+}
+
 // Only shown to somebody in more than one team, like the queue's filter chips.
+// It is above the sections rather than inside one because it changes the
+// subject of all six.
 function teamPicker() {
   if ((state.teams || []).length < 2) {
     return h('div', { class: 'card' }, h('h2', { text: data.team.name }));
@@ -95,11 +185,45 @@ function teamPicker() {
     teamID = Number(select.value);
     data = null;
     freshKey = null;
-    show();
+    draft = null;
+    refresh();
   });
   return h('div', { class: 'card' }, h('h2', { text: 'Team' }), select);
 }
 
+// --- overview --------------------------------------------------------------
+
+// /team itself. The strip already links to the five, so this earns its place
+// the way /admin's does: by saying how much of each there is, which is the one
+// thing a menu cannot.
+function overview() {
+  const today = isoDate(new Date());
+  const onToday = (data.schedule || []).find((e) => e.date === today);
+  const owners = (data.members || []).filter((m) => m.role === 'owner').length;
+  const levels = (data.escalation?.levels || []).length;
+  const keys = (data.integrations || []).length;
+  const unused = (data.integrations || []).filter((i) => !i.last_used_at).length;
+  const switches = (data.deadman?.matchers || '')
+    .split(';').map((x) => x.trim()).filter(Boolean).length;
+
+  return h('div', { class: 'overview-menu' },
+    menuCard('/team/rota', 'Rota', null,
+      onToday ? `${onToday.username} is on call today.` : 'Nobody is on call today.'),
+    menuCard('/team/members', 'Members', (data.members || []).length,
+      owners === 1 ? 'One owner.' : `${owners} owners.`),
+    menuCard('/team/escalation', 'Escalation', levels || null,
+      levels
+        ? `${levels === 1 ? 'One level' : `${levels} levels`}${data.escalation.fallback_topic ? ', then a fallback topic.' : '.'}`
+        : 'No ladder — nobody but the first person is woken.'),
+    menuCard('/team/sources', 'Alert sources', keys || null,
+      keys
+        ? (unused ? `${unused} of them never used.` : 'All in use.')
+        : 'No key yet, so nothing can reach this team.'),
+    menuCard('/team/deadman', 'Dead man’s switches', switches || null,
+      switches ? 'Alerts whose absence opens an incident.' : 'Nothing watched.'),
+  );
+}
+
 // --- schedule --------------------------------------------------------------
 
 // The rota is one person per UTC day. The on-call page shows it; this is where
diff --git a/internal/web/static/js/ui.js b/internal/web/static/js/ui.js
index e9fe384..93209bc 100644
--- a/internal/web/static/js/ui.js
+++ b/internal/web/static/js/ui.js
@@ -160,6 +160,18 @@ export function labelChip(k, v) {
   return h('span', { class: 'label', title: `${k}=${v}` }, h('span', { text: k }), h('span', { text: v }));
 }
 
+// One entry in a section's overview: a card that is a link, carrying the count
+// only that section can state. Both the Admin tab and the Team tab open on one
+// of these menus, and a menu item is a shape rather than a page's own idea.
+export function menuCard(href, label, count, note) {
+  return h('a', { class: 'card overview-item', href },
+    h('div', { class: 'overview-head' },
+      h('strong', { text: label }),
+      count != null && h('span', { class: 'overview-count', text: String(count) })),
+    h('p', { class: 'muted small', text: note }),
+  );
+}
+
 export function emptyState(title, text, iconName) {
   return h('div', { class: 'empty' },
     iconName && icon(iconName),