# @vercel/otel 1\.3\.0

**Published:** February 16, 2024 | **Authors:** Dima Voytenko, JJ Kasper, z0oks, Gary Borton

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Vercel and Next.js provide increased observability of your applications through OpenTelemetry.

**instrumentation.ts**
```tsx
import { registerOTel } from '@vercel/otel';
 
export function register() {
  registerOTel({ serviceName: 'acme-co' });
}
```

[v1.3.0](https://www.npmjs.com/package/@vercel/otel) of `@vercel/otel` now providing custom resource and operation names for [Datadog](https://vercel.com/integrations/datadog) to satisfy their cardinality requirements. You can group related URL paths for a given span to reduce cardinality and associated usage.

For example, `/products/hoodie` can be mapped to `/products/[name]`.

Learn more in [our documentation](https://vercel.com/docs/observability/otel-overview) or start using the package with [Next.js](https://nextjs.org/docs/app/building-your-application/optimizing/open-telemetry).

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📚 **More updates:** [View all changelog entries](/changelog/sitemap.md) | [Blog](/blog/sitemap.md)