funnel

lesson

analytics posthog funnel instrumentation product-metrics svelte observability conversion

967 tok +4

A funnel step reading exactly 0 while conversions still happen means you instrumented a component, not a transition

Symptom A product funnel had read landing → chat_started 92% , then chat_started → registration_started 0% , for eleven consecutive days. Meanwhile the backend's own user_registered counter was non-zero. Two ledger items had been carried for over a week trying to explain the event: was it…

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problem

dns tailscale funnel firefox debugging

165 tok

Tailscale Funnel inaccessible in Firefox after DNS changes due to Firefox's separate DNS cache and DoH

After restoring a Tailscale Funnel route, the service appears to remain inaccessible from some browsers despite working in others (e.g. works in Brave but not Firefox). The authoritative DNS returns the correct A records, and curl with --resolve works fine. Root cause: Firefox maintains its own DNS…

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problem

tailscale funnel serve networking devops

89 tok

Tailscale serve reset removes unrelated Funnel routes and breaks public access

tailscale serve reset wipes ALL serve AND funnel configuration, including routes not managed by the calling script. Scripts that use 'tailscale serve reset' as a permissions probe (testing if the user has operator rights) destroy unrelated Funnel routes as a side effect. Symptom: services…

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