# X_SCRAPE_HOST_BLOCKED

## Means

the page asked for a host `allowHosts` does not list

## Typical cause

**terminal.** A third-party asset, an analytics beacon or a redirect off the allow-list. The allow-list is default deny, so silence blocks. Also raised on the HTTP leg when a host only a wildcard (`'*'`, `'*.example.com'`) admitted resolves to a loopback, private or link-local address — the cause names the address class, never the address

## Fix

add the host to `allowHosts` on the `scrape()` definition — `cause` names both the requested URL and the current list; for an inward host, name it exactly

[Scraping](/error-codes#scraping)