Show blocked counts on the Blocking page, and reveal + CNAME on hover

The Blocking page shows how many queries each blocklist, and the rules
together, blocked in the last 24 hours (with statistics on). The + CNAME
button on A/AAAA rows shows when the row is hovered or focused, and
always on touch screens.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/web/static/assets/pages/blocking.js

@@ -22,7 +22,11 @@ let refreshTimer = null;
 
 export async function render(el, params, query) {
   clearTimeout(refreshTimer);
-  const [lists, rules, views, status] = await Promise.all([get("/blocking/lists", draftQuery()), get("/blocking/rules", draftQuery()), get("/views"), get("/blocking/status")]);
+  // Queries blocked in the last day, per list and for the rules together
+  // (null without query statistics, or without permission to see them).
+  const [lists, rules, views, status, hitList] = await Promise.all([get("/blocking/lists", draftQuery()), get("/blocking/rules", draftQuery()), get("/views"), get("/blocking/status"),
+    can("stats") ? get("/stats/breakdown", { group: "blocklist", since: "24h" }).catch(() => null) : null]);
+  const hits = hitList ? Object.fromEntries(hitList.map((e) => [e.key, e.count])) : null;
   const writable = can("blocking", true);
   const recursive = lists.concat(rules).find((x) => x.auto_views);
   const autoViews = recursive ? recursive.views : null;
@@ -53,8 +57,8 @@ export async function render(el, params, query) {
       h("form", { class: "actions", onsubmit: runCheck },
         h("label", { class: "muted" }, "Check a name"), checkName, h("button", { type: "submit" }, "Check")),
       checkOut),
-    rulesPanel(rules, views, autoViews, writable),
-    listsPanel(lists, views, autoViews, writable));
+    rulesPanel(rules, views, autoViews, writable, hits),
+    listsPanel(lists, views, autoViews, writable, hits));
   if (checkName.value) runCheck();
 
   // Lists are downloaded in the background, and a pause ends by itself:
@@ -207,7 +211,12 @@ function viewsCell(x) {
   return x.auto_views ? [x.views.join(", "), h("span", { class: "muted small" }, " (auto)")] : x.views.join(", ");
 }
 
-function rulesPanel(rules, views, autoViews, writable) {
+// hitsLink shows a count of blocked queries, linking to the statistics.
+function hitsLink(n) {
+  return h("a", { href: "#/stats?since=24h", title: "queries blocked in the last 24 hours; more on the Statistics page" }, (n || 0).toLocaleString());
+}
+
+function rulesPanel(rules, views, autoViews, writable, hits) {
   const name = input({ placeholder: "ads.example.com", class: "mono" });
   const action = select([["block", "Block"], ["allow", "Allow"]], "block");
   const exact = checkbox("only this exact name", false);
@@ -230,6 +239,7 @@ function rulesPanel(rules, views, autoViews, writable) {
     h("div", { class: "f" }, h("label", null, " "), h("button", { class: "primary", type: "submit" }, "Add rule")));
   return h("div", { class: "panel" },
     h("h2", null, "Your rules"),
+    hits && rules.some((r) => r.action === "block") ? h("p", { class: "small" }, "Blocked ", hitsLink(hits.rules), " queries in the last 24 hours (all rules together: named doesn't say which rule matched).") : null,
     h("p", { class: "muted small" }, "A rule covers the domain and every name below it, unless it's for the exact name only. Rules beat every blocklist, and the most specific rule wins: allowing cdn.example.com overrides blocking example.com for cdn.example.com and the names below it."),
     writable ? [form, err] : null,
     table([
@@ -243,7 +253,7 @@ function rulesPanel(rules, views, autoViews, writable) {
     ].filter(Boolean), rules, { empty: "No rules yet.", rowClass: (r) => r.pending ? "pending-" + r.pending : "" }));
 }
 
-function listsPanel(lists, views, autoViews, writable) {
+function listsPanel(lists, views, autoViews, writable, hits) {
   const name = input({ placeholder: "hagezi-multi", class: "mono", style: { width: "11em" } });
   const url = input({ placeholder: "https://…", class: "mono" });
   const vp = viewPicker(views, autoViews);
@@ -273,6 +283,7 @@ function listsPanel(lists, views, autoViews, writable) {
       { label: "Name", render: (l) => [h("strong", { class: "mono" }, l.name), l.pending ? [" ", pendingBadge(l.pending)] : null] },
       { label: "State", render: (l) => { const [t, k] = stateBadge[l.state] || [l.state, ""]; return [badge(t, k), l.status && l.status.error ? h("div", { class: "small err-text" }, l.status.error) : null]; } },
       { label: "Domains", render: (l) => l.status && l.status.updated_at ? l.status.entries.toLocaleString() : "–", tdClass: "right" },
+      hits ? { label: "Blocked (24h)", render: (l) => hitsLink(hits[l.name]), class: "right", tdClass: "right" } : null,
       views.length ? { label: "Views", render: viewsCell } : null,
       { label: "Updated", render: (l) => l.status && l.status.updated_at ? h("span", { title: "checked " + time(l.status.checked_at) }, relTime(l.status.updated_at)) : "–", tdClass: "small" },
       { label: "Memory", render: (l) => l.memory_mb ? h("span", { title: "named's memory for this list, estimated (all its views)" }, "~" + l.memory_mb + " MB") : "–", tdClass: "small right" },