Today, we're sharing what we're building: up0, a zero-tolerance uptime and observability platform for modern infrastructure. We're in early access. This post walks through why we're building it and what's live so far.

The Problem We're Solving

If you're running a global application, you know the pain. Your monitoring dashboard shows everything is green. Alerts aren't firing. Your infrastructure looks healthy. But users in certain regions are experiencing slow responses, timeouts, or complete outages.

This isn't a hypothetical problem. It happens to thousands of teams every day.

The issue? Most monitoring solutions treat your entire infrastructure as a single black box. They monitor from your primary region or a single global endpoint. They miss regional degradation, localized outages, and performance differences across geographies.

A 50ms response time in us-east-1 means nothing when users in Tokyo see 800ms. Regional performance gaps create bad experiences and erode user trust.

Introducing up0

up0 is built from the ground up to solve this problem. We provide complete visibility into system health, performance, and reliability across every region that matters to your users.

What Makes up0 Different

Multi-region monitoring from day one

Monitor from 5 regions across North America, Europe, and Asia
Detect regional outages before they affect your users
Get granular data on performance differences between regions
Understand your users' actual experience, not just aggregate metrics

Precise latency tracking

Monitor p50, p95, p99 latencies for every endpoint
Track performance trends over time
Set custom thresholds for each region
Understand performance distribution, not just averages

SLO management built-in

Define SLOs that match your business requirements
Track compliance in real-time
Understand your error budget
Make data-driven decisions about when to deploy

Key Features

1. HTTP/HTTPS Monitoring

Monitor any HTTP endpoint from multiple regions. Set custom headers, request bodies, and authentication. Get real-time alerts when services fail.

GET https://api.example.com/health
Regions: US, EU, APAC
Interval: 60 seconds
Timeout: 10 seconds

2. Multi-Region Health Checks

Run identical health checks from 5 regions simultaneously. Compare performance across geographies. Identify regional issues in real-time.

Results from latest check:
us-east-1:    200 OK (42ms)
eu-west-1:    200 OK (38ms)
ap-south-1:   200 OK (120ms) - P95: 180ms

3. Latency Percentiles

Track response time distribution with p50, p95, and p99 percentiles. Understand not just average performance, but tail latencies that affect user experience.

4. SLO Tracking

Define service level objectives and monitor compliance. Track your error budget in real-time. Know exactly how much degradation you can tolerate before breaching your SLO.

5. Incident Alerting

Get notified instantly when something breaks. Multiple notification channels: email, Slack, webhooks, PagerDuty. Flexible alerting rules that match your operational requirements.

6. Historical Analytics

View performance history over any time range. Understand trends and patterns. Correlate performance changes with deployments and infrastructure changes.

Designed for DevOps and SRE

up0 is built by engineers who understand the pain of managing global infrastructure. We've included the features that matter:

Alert Fatigue Prevention: Smart alerting rules reduce noise while catching real issues
Detailed Incident Context: See exactly what failed, where, and when
Integration Ready: Webhooks, APIs, and integrations with your existing tools
Real-time Dashboard: Visual representation of system health across regions
Export and Analysis: Export data for further analysis in your tools

The Data Matters

We process millions of health checks daily from distributed probe servers across the globe. Every data point is exact: no sampling, no estimation. You get the real picture of your infrastructure.

A Common Failure Mode

Here's a pattern we keep seeing: a team's primary region performs excellently (40-50ms response times), while a secondary region, often APAC, relative to a US or EU-based primary, quietly runs at 400ms+ under a single-region monitoring setup that never catches it.

Monitoring from multiple regions simultaneously is what surfaces that gap in the first place:

Identify which regions are actually affected
Isolate the root cause: routing, CDN configuration, regional infrastructure
Fix it with real before/after data instead of guesswork

Without multi-region monitoring, this kind of regional gap stays invisible until a customer reports it.

Getting Started

up0 is in early access while we build toward general availability. Teams who join now help shape what ships next; there's no self-serve signup or public pricing yet.

What's Next

This is just the beginning. We're working on:

DNS monitoring across regions
TCP/UDP monitoring for non-HTTP services
GraphQL endpoint monitoring
Custom synthetic scenarios
Advanced analytics and reporting
Integration with major observability platforms

Our Promise

up0 is built on a simple promise: zero blind spots, zero compromises. We won't hide data, we won't average away your problems, and we won't let you miss regional issues.

Your systems are truly UP when they're up everywhere, for everyone.

Get Early Access

Ready to see the full picture of your infrastructure? Join the waitlist and we'll email you when it's your turn to see what up0 can monitor for your stack today.

Have questions? Reach out at info@up0.io.

See the full feature set on the platform page, or join the waitlist to get early access.

About up0: We're a team of DevOps engineers and SRE practitioners building the monitoring platform we wish existed. Zero blind spots. Zero compromises.

Introducing up0: Zero-tolerance uptime monitoring