---
title: "Limiting Trace Propagation"
url: https://docs.sentry.io/platforms/dart/guides/flutter/tracing/trace-propagation/limiting-trace-propagation/
---

# Limiting Trace Propagation | Sentry for Flutter

On this page you will learn how to specify for which endpoints trace information is added.

By default, trace information (`sentry-trace` and `baggage` headers) will be added to all outgoing HTTP requests. If you want to limit the URLs where trace information is added, you can specify that using the `tracePropagationTargets` option:

```dart
await SentryFlutter.init((options) {
  options.dsn = '___PUBLIC_DSN___';
  options.tracePropagationTargets.clear();
  options.tracePropagationTargets.addAll(['https://myproject.org', 'https://.*.otherservice.org/.*']);
});
```

In the example above, trace information will be added to all requests to URLs that contain `myproject.org` and to all sub domains of `otherservice.org`, like `https://api.otherservice.org/something/` and `https://payment.otherservice.org/something/`.

See our [config options](https://docs.sentry.io/platforms/dart/guides/flutter/configuration/options.md#trace-propagation-targets) documentation for more information about the `trace_propagation_targets` option.