Engineering articles
Uptime checks, incident response, SLA tracking, and the parts of vendor monitoring that actually matter when something breaks.
20 articles in Engineering · page 2 of 3
How Community Reports Catch Outages 15 Minutes Before Official Status Pages Update
We analyzed 90 days of outage data across 2463 cloud services. Community user reports consistently outpace vendor status page updates, often by 10 to 20 minutes.
Cloud Outage Report: Which Services Had the Most Downtime in Q1 2026
PulsAPI analyzed 1,240 incidents across 2463 cloud services in Q1 2026. Here's which services had the most outages, the longest MTTR, and the worst SLA compliance.
The Missing Layer in Your Observability Stack: Third-Party Cloud Dependencies
You have logs, metrics, and traces covered. But most observability stacks have a blind spot: the cloud services your application depends on but doesn't control.
How to Calculate the Real Business Cost of Third-Party Cloud Downtime
Lost revenue, support overhead, engineering time, and customer trust. Here's a practical framework for calculating what vendor outages actually cost your business, and why that number matters.
Webhook Delivery Guarantees: At-Least-Once vs Exactly-Once Semantics
Most API platforms promise webhook delivery but rarely guarantee it. This deep-dive covers retry strategies, idempotency keys, exponential backoff, and how to build a webhook infrastructure with 99.99% delivery confidence.
Rate Limiting Strategies for High-Traffic APIs: A Comparative Analysis
Token bucket, leaky bucket, fixed window, sliding window, each rate-limiting algorithm has tradeoffs. We benchmarked all four under 100k req/s load with Redis and compared accuracy, fairness, and latency overhead.
Push vs Pull Monitoring: Which Architecture Fits Your Stack?
Pull-based monitoring (Prometheus, ICMP probes) scrapes targets on a schedule; push-based monitoring (StatsD, OpenTelemetry OTLP) has agents send data outward. Compare the architectures, scaling profiles, and where each one breaks.
Heartbeat vs Health Check Endpoints: Designing Signals That Actually Mean Something
A heartbeat says 'I'm alive'; a health check says 'I'm ready to serve traffic.' Most teams conflate them and end up with green dashboards over broken services. Here's how to design each one correctly.
Vendor Risk Assessment for SaaS: Evaluate Reliability Before You Commit
Choosing a cloud vendor without assessing reliability risk is like hiring without a reference check. Here's a practical framework for evaluating third-party reliability before you build on it.