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M: PostHog evades event tracking block#23187

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eden881 wants to merge 3 commits intoeasylist:masterfrom
eden881:posthog-events-tracking
Open

M: PostHog evades event tracking block#23187
eden881 wants to merge 3 commits intoeasylist:masterfrom
eden881:posthog-events-tracking

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@eden881
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@eden881 eden881 commented Feb 17, 2026

As discussed in #20838, PostHog circumvents the current rules blocking tracking event ingestion:

||app.posthog.com/e/?compression=
||app.posthog.com/e/?ip=
||app.posthog.com/static/array.js
||app.posthog.com/static/recorder-v2.js

They rotate the host server, query parameter order, and URL path to evade the current filter.
This change closes those loopholes while keeping their dashboard fully functional.

Closes #20838

Before change:
image

After change:
image

@wakesend
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at this point simply block *.posthog.com with dns

@eden881
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eden881 commented Feb 20, 2026

It won't help unfortunately. I still want to use PostHog's product, and blocking them at the DNS level would break their website completely.
The update proposed here should be aggressive enough to block their tracking events but not the rest of their website.

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posthog.com

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