# X_OUTBOUND_HOST_BLOCKED

## Means

an outbound HTTP call refused the address it would reach

## Typical cause

dial: 'public' refused the URL: not https outside a local environment, credentials in the URL, a host that resolves to a loopback, private, link-local or reserved address, or a redirect hop that does

## Fix

use a public https:// URL for `meta.vendor`, or `dial: 'named'` for a host the app itself names in code

[Core and runtime](/error-codes#core-and-runtime)