# Analytics

Track user behavior and performance with Vercel Analytics and Speed Insights.



Track user behavior and performance with Vercel Analytics and Speed Insights.

## Vercel Analytics [#vercel-analytics]

Real user monitoring and page views.

## Speed Insights [#speed-insights]

Core Web Vitals tracking (LCP, FID, CLS).

## View Tracking [#view-tracking]

Per-article view tracking via `/api/notes/[slug]/views` with Vercel Postgres.

The `useViews` hook handles both fetching and incrementing on individual article pages:

```typescript
const count = useViews(slug); // GET + POST on mount
const count = useViews(slug, false); // GET only (no increment)
```

For the homepage, `useBatchViews` fetches counts for all displayed articles in a single request via `/api/notes/views`:

```typescript
const slugs = articles.map((a) => a.slug);
const viewCounts = useBatchViews(slugs); // { "slug-a": 42, "slug-b": 17 }
```