Watch MultiSignal actually work

Incoming — Priya, ops lead at a 40-person B2B scheduling SaaS:
"Free trial signups fell 38% week-over-week (412 → 255), Mon Mar 3 to Sun Mar 9. Nothing changed on our side. What's outside?"

MultiSignal run:

Window checked: Feb 24 – Mar 10. Drop onset: sharp, between Mar 4 and Mar 5.

Candidate 1 — Google core algorithm update, rollout confirmed Mar 4.
Timing: fits. Onset lands one day after rollout start.
Discussion: r/SEO and r/juststart both spiked with organic-traffic-loss threads Mar 5–7; multiple SaaS site owners reporting 30–50% declines.
Confidence: moderate. This is plausible and the timing lines up, but I can't see your traffic sources. If organic was >40% of trial acquisition and organic specifically fell, this gets stronger. If paid fell too, it doesn't explain it.

Candidate 2 — competitor pricing or launch news.
NO LINK. No funding, launch, or free-tier announcements in your category in this window. Nothing on r/SaaS or r/startups either. I'm not going to stretch this one.

Candidate 3 — broader market/buying freeze narrative.
NO LINK for this window. Some Q1 budget-freeze chatter exists but it's continuous, not spiked, and it doesn't produce a two-day cliff.

What would settle it: split the 38% by acquisition channel for Mar 3–9 vs. prior week. If organic carries the drop, Candidate 1 goes from plausible to likely.

None of this is proof — it's a timed coincidence with supporting discussion.