Analytics for Sentry

Sentry tells you what broke. BetterMeter tells you who was affected. Together, they answer the full question: did that error spike happen because traffic surged, because an AI crawler hammered a fragile endpoint, or because a deploy went wrong?

The error-traffic correlation workflow

When Sentry fires an alert, query BetterMeter for the same time window. If traffic spiked simultaneously, the errors are likely load-related. If traffic is flat but errors are up, the root cause is a code or infrastructure change.

// Sentry webhook → correlate with BetterMeter traffic
export async function handleSentryAlert(alert: SentryAlert) {
  const timestamp = new Date(alert.triggeredAt);
  const oneHourBefore = new Date(timestamp.getTime() - 60 * 60 * 1000);

  // Fetch BetterMeter traffic for the same window
  const res = await fetch(
    `https://bettermeter.com/api/v1/timeseries?` +
    `site=your-domain.com&start=${oneHourBefore.toISOString()}&end=${timestamp.toISOString()}`,
    { headers: { Authorization: "Bearer bm_your_api_key" } }
  );
  const traffic = await res.json();

  const avgVisitors = traffic.data.reduce((s, d) => s + d.visitors, 0) / traffic.data.length;
  const latestVisitors = traffic.data.at(-1)?.visitors ?? 0;

  return {
    errorCount: alert.count,
    trafficCorrelation: latestVisitors > avgVisitors * 1.5
      ? "Traffic spike detected — errors likely load-related"
      : "Traffic normal — errors likely code-related",
    aiTraffic: traffic.aiVisitorPercent,
    topReferrers: traffic.topReferrers?.slice(0, 3),
  };
}

Why Sentry alone isn't enough

• 01No traffic context — Sentry shows error counts but not whether a traffic surge caused them. BetterMeter provides the traffic timeline.
• 02Bot-induced errors — AI crawlers hitting undocumented routes can trigger 500s. BetterMeter identifies exactly which bots are responsible.
• 03Referrer attribution — When errors spike, see which traffic sources sent the users who encountered them.
• 04Privacy-first — Sentry captures user sessions and IPs. BetterMeter's traffic data uses no cookies and stores no PII.

Complementary, not competing

Sentry is the best error tracker. BetterMeter is the best privacy-first analytics platform. Use both: Sentry for what broke, BetterMeter for who was there and why traffic behaved the way it did. The combination gives you full incident context without sacrificing user privacy.