Stack Health Score
Score = 30-day uptime − penaltiesLatency >500ms: −2 | >1000ms: −5
Outages this month: −2 each
Degradations this month: −1 each
Uptime · Latency · Incidents
How many of your clients depend on Klaviyo?
When Klaviyo slows down, every project that depends on it feels it at once — and the first call goes to whoever shipped it. Probecast watches the sites you ship and the providers underneath them, shows which clients an outage touches and turns each month into a report your client can trust.
One provider breaks. See every client it touches.
Ordered by how many clients it hits, so you message the right people first.
Each client's site and store, checked from up to four regions.
US West & East, Europe and Asia — a regional outage never hides.
A monthly report under your brand, reviewed by your team before it goes out.
Uptime, incidents, traffic, revenue and support — signed off by a person.
Your team scoped per client. Every change on the record.
Freelancers see only their clients; every change lands in an append-only audit log.
Alerts land on email, Slack, push or webhooks — with the client's name on them.
100.00%
UptimeShare of checks that found this endpoint available.
Only DOWN lowers it — see /docs#uptime.
194ms
Avg Latency
1,000+
APIs monitored
0
Outages
0
Degradations
This Month
About Klaviyo's Klaviyo
Klaviyo's Klaviyo automates email and SMS marketing for e-commerce brands with deep behavioral segmentation. Klaviyo was founded in 2012 and is a leading marketing automation platform for e-commerce.. The Klaviyo is used by developers worldwide for email automation, SMS marketing, audience segmentation, e-commerce flows, revenue attribution.
Probecast monitors the Klaviyo from 4 global regions (US West, US East, Europe, Asia Pacific) every 5 minutes, tracking uptime, latency and regional availability. Our real-time monitoring helps developers and teams understand the current health of Klaviyo's Klaviyo and get alerted the moment service degrades.
Why monitor Klaviyo?
If your product depends on Klaviyo for critical features, an outage on Klaviyo's side is an outage on your product. Probecast detects Klaviyo incidents as they start, giving you time to communicate with customers, fall back to alternative services or pause background jobs gracefully.
Current status
As of the latest check, Klaviyo is operational. The 30-day uptime is 100.00%, with 0 incidents recorded this month. Average response latency across all regions is 194ms.
●Uptime History
Regional Status
US West
159ms
latency
US East
133ms
latency
Europe
169ms
latency
Asia Pacific
313ms
latency
Latency (24h)
More CRM & Marketing APIs
full catalog →Live status · same monitoring as Klaviyo
Frequently Asked Questions
Recent Incidents
No incidents recorded
This API has been stable
API Information
Monitored Endpoint
https://a.klaviyo.com/api/v2/lists