Multifamily Marketing

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Your GA4 Filter May Be Eating Leasing Traffic Right Now

September 23, 2026

Google Analytics just shipped an Include-mode filter that lets admins whitelist which hostnames get counted. Anything with a blank or unrecognized hostname gets tossed. That sounds like housekeeping. For a leasing operation, it's closer to a leak in the roof you can't see until the ceiling's already stained.

Here's why this one's yours to worry about. Your traffic doesn't come from one tidy domain. It comes from your website, your ILS listing pages, a chat widget vendor, maybe a virtual tour provider, a lead form embedded in an ad landing page. Each of those can throw off events with a hostname that looks nothing like your main site, or no hostname at all. If your GA account gets switched to Include mode and nobody built the allow-list carefully, those events don't error out. They just vanish. No warning banner, no red flag. Your funnel report just quietly gets shorter.

The part PPC Land flags that should make your agency sit up: Measurement Protocol hits are exempted from this filter, but it's unclear how events sent through the Data Manager API hold up. If your CRM or ILS integration pushes conversion data that way, that's not a footnote, that's your occupancy report.

Ask your vendor
  1. 01Is Include mode turned on for our GA4 property, and if so, who built the hostname allow-list and when?
  2. 02Can you pull our current allow-list and confirm every ILS domain, chat widget, and lead form vendor we use is on it?
  3. 03How are our conversion events getting into GA, Measurement Protocol or Data Manager API, and have you confirmed which one this filter treats differently?
  4. 04Can you show me a before-and-after comparison of hostname-level traffic for the two weeks around when this filter went live on our account?
  5. 05If a new listing syndication partner or chat vendor gets added next quarter, what's the process for getting their domain whitelisted before launch, not after we notice a drop?

Source: PPC Land, September 22, 2026

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