Ultraviolet Observability vs CheckoutAlarm

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Ultraviolet Observability compared with CheckoutAlarm
Detail	Ultraviolet Observability	CheckoutAlarm
What it does	Self-hosted observability platform for Kubernetes that keeps all telemetry data within your firewall	Monitor your checkout and Stripe account, get alerts when either breaks
Stage	Startup	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Paid	Freemium
Pricing	Evaluation: Free for 30 days with full-function core and unlimited nodes during trial. Connected: $25 per node per month with 10-node minimum, billed on node-minutes. Air-gapped: Annual hand-carried license with no call-home. No per-GB, per-span or per-user fees.	Free: $0/month for 1 site checked daily plus daily Stripe check. Pro: $19/month for up to 3 sites checked hourly plus hourly Stripe check. Full refund within 7 days.
Key features	Distributed traces and APM with automatic instrumentation across HTTP, gRPC, DNS and databases Logs correlated to traces with severity faceting and live tail Metrics pipeline supporting Prometheus remote-write and Fluent Bit Kubernetes and infrastructure monitoring with node and workload health Dashboards, SLOs with error budgets and Datadog dashboard import Local alerting rules evaluated inside the core routed to Slack, PagerDuty, Teams or email Real user monitoring with Core Web Vitals, session replay and browser to backend trace stitching Multi-site support with remote clusters dialing home over outbound mTLS OpenTelemetry-native support for OTLP over gRPC and HTTP No code instrumentation required for application tracing	Site ownership verification by DNS TXT record, meta tag or file Scheduled page checks with status, response time, and title/phrase verification Stripe health monitoring with read-only key Email alerts after 2 consecutive page failures or first Stripe problem Daily ownership verification checks with pause if proof is missing Encrypted storage of Stripe read-only keys
What makes it different	Zero telemetry egress and all data stays on customer infrastructure Predictable pricing based on node-minutes with no per-GB or per-span charges Automatic instrumentation with no code changes required	Combines page uptime with Stripe payment health in one tool Detects silent payment failures other uptime monitors miss Uses read-only Stripe key so CheckoutAlarm cannot modify your account No code integration required Proof of ownership verified before monitoring starts
Community votes	0	0
DR (Domain Rating by Ahrefs)	23 +5 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	20	14
Referring domains (Majestic)	5	2

5 details filled in for both companies.

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