diff --git a/.github/workflows/deploy-pages.yml b/.github/workflows/deploy-pages.yml
index 383f1828b52..a694a91dd6d 100644
--- a/.github/workflows/deploy-pages.yml
+++ b/.github/workflows/deploy-pages.yml
@@ -24,6 +24,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
+        with:
+          # build-history.mjs walks the full git history of the public dump to
+          # rebuild the homepage growth timeline; a shallow clone hides old syncs.
+          fetch-depth: 0
 
       - uses: actions/setup-node@v4
         with:
diff --git a/.gitignore b/.gitignore
index 6b890c3926a..63b0dd0c73c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,9 +31,8 @@ env/
 # Note: data/_staging/ (raw collected candidate pool) is intentionally tracked —
 # comprehensive data collection is a purpose of this repo.
 
-# Verification layer caches: full Tier 0 scores + network caches are cheap to
-# recompute. Only data/_verify/ledger.jsonl (the promotion audit trail) is tracked.
-data/_verify/state/
+# Build-only: regenerated from full git history on every Pages deploy (site/scripts/build-history.mjs)
+site/public/v1/history.json
 
 # Testing / coverage
 .pytest_cache/
diff --git a/site/package.json b/site/package.json
index e05ae60ee5d..45c7e9e020b 100644
--- a/site/package.json
+++ b/site/package.json
@@ -5,6 +5,8 @@
   "private": true,
   "scripts": {
     "dev": "astro dev",
+    "build:history": "node scripts/build-history.mjs",
+    "prebuild": "node scripts/build-history.mjs",
     "build": "astro build",
     "preview": "astro preview"
   },
diff --git a/site/scripts/build-history.mjs b/site/scripts/build-history.mjs
new file mode 100644
index 00000000000..bc242f783d2
--- /dev/null
+++ b/site/scripts/build-history.mjs
@@ -0,0 +1,113 @@
+// Precompute the dataset growth timeline from git history at build time.
+//
+// The homepage History section used to call the GitHub API live and could only
+// show the last ~7 commits (per_page=8 + slice(7)), so older syncs were invisible
+// and the unauthenticated API rate limit (60/h) made it fragile. Instead we walk
+// the full git history of `site/public/v1/index.json` once during the deploy build
+// and emit `site/public/v1/history.json` — a single static file the page reads.
+//
+// Build-only artifact (gitignored): regenerated on every Pages deploy, so it is
+// always complete and never churns data PRs. Requires a full-depth checkout
+// (fetch-depth: 0) to see old commits; degrades to an empty timeline otherwise.
+
+import { execFileSync } from "node:child_process";
+import { mkdirSync, writeFileSync } from "node:fs";
+import { dirname, resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+
+const SITE_DIR = resolve(dirname(fileURLToPath(import.meta.url)), "..");
+const REPO_ROOT = resolve(SITE_DIR, "..");
+const TRACKED = "site/public/v1/index.json";
+const OUT = resolve(SITE_DIR, "public/v1/history.json");
+const REPO_URL = "https://github.com/GetTechAPI/TechAPI";
+
+// Categories we sum into the record total (matches the public dump manifest).
+const ORDER = ["smartphones", "tablets", "watches", "pdas", "socs", "gpus", "cpus", "brands"];
+// Keep the chart legible if the history ever grows large: downsample to at most
+// MAX points, always preserving the first (baseline) and last (latest) commits.
+const MAX = 40;
+
+function git(args) {
+  return execFileSync("git", ["-C", REPO_ROOT, ...args], {
+    encoding: "utf8",
+    maxBuffer: 64 * 1024 * 1024,
+  });
+}
+
+function countsOf(manifest) {
+  const counts = {};
+  let total = 0;
+  for (const key of ORDER) {
+    const n = manifest?.collections?.[key]?.count;
+    if (typeof n === "number") {
+      counts[key] = n;
+      total += n;
+    }
+  }
+  return { counts, total };
+}
+
+function downsample(points) {
+  if (points.length <= MAX) return points;
+  const step = (points.length - 1) / (MAX - 1);
+  const picked = [];
+  const seen = new Set();
+  for (let i = 0; i < MAX; i++) {
+    const idx = Math.round(i * step);
+    if (!seen.has(idx)) {
+      seen.add(idx);
+      picked.push(points[idx]);
+    }
+  }
+  return picked;
+}
+
+function buildPoints() {
+  // %H sha, %cI committer ISO date, %s subject — 0x1f-separated, one line/commit.
+  const raw = git(["log", "--format=%H%x1f%cI%x1f%s", "--", TRACKED]).trim();
+  if (!raw) return [];
+  const commits = raw.split("\n").map((line) => {
+    const [sha, date, ...rest] = line.split("\x1f");
+    return { sha, date, title: rest.join("\x1f") };
+  });
+  // git log is newest-first; the timeline reads oldest-first.
+  commits.reverse();
+
+  const points = [];
+  for (const c of commits) {
+    let manifest;
+    try {
+      manifest = JSON.parse(git(["show", `${c.sha}:${TRACKED}`]));
+    } catch {
+      continue; // file absent/unparseable at this commit — skip it
+    }
+    const { counts, total } = countsOf(manifest);
+    if (!total) continue;
+    points.push({
+      sha: c.sha.slice(0, 7),
+      date: c.date,
+      title: (c.title || "Dataset sync").trim(),
+      url: `${REPO_URL}/commit/${c.sha}`,
+      total,
+      counts,
+    });
+  }
+  return downsample(points);
+}
+
+function main() {
+  let points = [];
+  try {
+    points = buildPoints();
+  } catch (err) {
+    console.warn(`[build-history] git history unavailable: ${err.message}`);
+  }
+  mkdirSync(dirname(OUT), { recursive: true });
+  writeFileSync(
+    OUT,
+    JSON.stringify({ generated_at: new Date().toISOString(), schema: 1, points }, null, 2),
+  );
+  console.log(`[build-history] wrote ${points.length} point(s) -> ${OUT}`);
+}
+
+main();
diff --git a/site/src/pages/index.astro b/site/src/pages/index.astro
index 55dafee5f25..e926020086f 100644
--- a/site/src/pages/index.astro
+++ b/site/src/pages/index.astro
@@ -116,7 +116,7 @@ const endpoints = [
           <div>
             <span class="kicker">00 - History</span>
             <h2 style="margin-top:14px">Dataset growth over time</h2>
-            <p class="sec-sub">Recent dump commits are replayed into a small growth chart, showing how many records each sync added.</p>
+            <p class="sec-sub">Every dump commit is replayed into a growth chart — from the first snapshot to the latest sync — showing how many records each one added.</p>
           </div>
           <span class="num">v1/index.json</span>
         </div>
diff --git a/site/src/scripts/techapi.js b/site/src/scripts/techapi.js
index 8a39affc6e9..681250c792d 100644
--- a/site/src/scripts/techapi.js
+++ b/site/src/scripts/techapi.js
@@ -288,12 +288,41 @@ function countUp(node, target) {
     }).join("");
   }
 
-  async function loadCommitHistory(currentManifest) {
-    const commitsUrl = `https://api.github.com/repos/GetTechAPI/TechAPI/commits?path=${encodeURIComponent(dumpPath)}&per_page=8`;
+  const fmtWhen = (date) => date
+    ? date.toLocaleDateString(undefined, { month: "short", day: "numeric", year: "numeric" })
+    : "recent";
+  const rowsFromCounts = (counts) => order
+    .map((key) => ({ key, count: counts?.[key] }))
+    .filter((row) => row.count != null);
+
+  // Preferred path: a single prebuilt manifest (build-history.mjs) holding the
+  // FULL dump timeline. No GitHub API, no per-commit fetches, no rate limit, and
+  // old commits stay visible (the live API path only ever showed the last 7).
+  async function pointsFromStaticHistory() {
+    const data = await getJSON("v1/history.json");
+    const points = (data.points || []).map((p) => {
+      const date = p.date ? new Date(p.date) : null;
+      return {
+        sha: String(p.sha || "").slice(0, 7),
+        dateValue: date ? date.getTime() : 0,
+        when: fmtWhen(date),
+        title: String(p.title || "Dataset sync").split("\n")[0],
+        url: p.url || "https://github.com/GetTechAPI/TechAPI",
+        rows: rowsFromCounts(p.counts),
+        total: p.total != null ? p.total : rowsFromCounts(p.counts).reduce((s, r) => s + r.count, 0),
+      };
+    }).filter((p) => p.total > 0);
+    return points.sort((a, b) => a.dateValue - b.dateValue);
+  }
+
+  // Fallback (e.g. local `astro dev` with no prebuilt history.json): the old live
+  // GitHub API replay, capped at the most recent commits.
+  async function pointsFromGitHubApi() {
+    const commitsUrl = `https://api.github.com/repos/GetTechAPI/TechAPI/commits?path=${encodeURIComponent(dumpPath)}&per_page=10`;
     const response = await fetch(commitsUrl);
     if (!response.ok) throw new Error(response.statusText);
     const commits = await response.json();
-    const items = Array.isArray(commits) ? commits.slice(0, 7) : [];
+    const items = Array.isArray(commits) ? commits.slice(0, 10) : [];
     const snapshots = await Promise.all(items.map(async (item) => {
       const sha = String(item.sha || "");
       const rawUrl = `https://raw.githubusercontent.com/GetTechAPI/TechAPI/${sha}/${dumpPath}`;
@@ -304,15 +333,19 @@ function countUp(node, target) {
       return {
         sha: sha.slice(0, 7),
         dateValue: date ? date.getTime() : 0,
-        when: date ? date.toLocaleDateString(undefined, { month: "short", day: "numeric", year: "numeric" }) : "recent",
+        when: fmtWhen(date),
         title: (item.commit?.message || "Dataset sync").split("\n")[0],
         url: item.html_url || "https://github.com/GetTechAPI/TechAPI",
         rows: countRows(manifest),
         total: totalRecords(manifest),
       };
     }));
+    return snapshots.filter(Boolean).sort((a, b) => a.dateValue - b.dateValue);
+  }
 
-    const points = snapshots.filter(Boolean).sort((a, b) => a.dateValue - b.dateValue);
+  async function loadCommitHistory(currentManifest) {
+    let points = await pointsFromStaticHistory().catch(() => null);
+    if (!points || !points.length) points = await pointsFromGitHubApi();
     if (!points.length) throw new Error("empty history");
 
     const currentTotal = totalRecords(currentManifest);