Module analytics 

First-party proxies for Plausible and the Sentry browser SDK.

Both vendors’ own origins are on blocklists, and a blocked request is a visitor you never counted or an error you never saw. Serving their scripts and receiving their payloads from this origin makes the traffic same-origin, which is what Plausible themselves recommend.

Nothing here interprets a payload — see [proxy] for why that matters.

Structs

AnalyticsConfig

Which Plausible site events belong to.

SentryDsn

A parsed Sentry DSN.

SentryDsnParseError

Why a DSN could not be understood.

Constants

CLIENT_IP_HEADERS

Headers consulted for the client’s real address, most trusted first. The socket address is the fallback: always present, but behind a proxy it is the proxy.

ENV_ANALYTICS_ID

The environment variable holding the Plausible script id.

ENV_SENTRY_BROWSER_DSN

The environment variable holding the browser Sentry DSN.

PLAUSIBLE_HOST

Plausible’s script host.

SENTRY_CDN_HOST

Sentry’s loader-script CDN.

Functions

relay_envelope

Relays a Sentry envelope verbatim.

relay_event

Forwards a Plausible event, carrying the real visitor IP.

relay_script

Fetches an upstream script and returns it with the upstream’s own headers.

resolve_true_client_ip_address

Resolves the client’s address, preferring proxy headers over the socket.