Klaviyo’s built-in deliverability monitoring is a genuinely useful starting point. Treat it as the full picture and real, fixable problems can stay invisible for months.
The score blends everything across your sending activity into one general health indicator. Useful for a quick glance, but that blending can mask serious, provider-specific problems. An account can show reasonable overall health while placement at one major provider, Gmail especially, given how much of most lists use it, is genuinely poor.
The more useful data lives one click deeper. Go to Deliverability, then Placement Insights, and look at inbox placement broken out by provider, Gmail, Yahoo, Outlook, and the rest. This surfaces problems a blended score would never show on its own.
Here’s a real pattern this catches. It’s common for an account to show strong Outlook and Yahoo placement while Gmail placement sits noticeably lower, often because Gmail’s spam filtering reacts more sharply to engagement-based signals than the others do. A brand relying only on the overall score has no way of knowing that specific, addressable gap exists.
Why does this matter practically? If Gmail is 40-50% of your subscriber base, common for most U.S. consumer lists, a Gmail-specific placement problem is a much bigger revenue issue than an aggregate score would ever suggest, and it needs a different fix than a general “deliverability’s fine” reading would prompt.
Check provider-specific placement monthly, not just the overall score. One provider consistently lagging the others points toward a specific, targeted fix, often tied to how engaged Gmail subscribers specifically are, rather than a broad deliverability overhaul. Treating deliverability as a single number instead of several provider-specific ones is one of the most common reasons a real, fixable problem sits unaddressed for months.
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