Tutorials
Practical guides on uptime, monitoring, DRaaS, load balancing and AWS reliability from Pingy.io. Tracking an incident? See Outage Reports.
Sticky Sessions: When You Need Them and When They Hurt
A practical guide to understanding session affinity in load balancers — what problems it solves, what new ones it creates, and how to decide whether you actually need it.
Disaster Recovery as a Service (DRaaS): A Practical Primer
What DRaaS actually is, how it differs from backup, and what you need to set one up that works when it matters most.
Why us-east-1 Fails the Most — and How to Avoid the Blast Radius
us-east-1 is AWS's oldest, densest region, and that history makes it the most likely to take your service down with it — here's how to architect around it.
AWS Regions and Availability Zones: How to Architect Across Them
A practical guide to understanding AWS Regions and AZs and making concrete architectural decisions that keep your services resilient.
Application Load Balancer vs Network Load Balancer: Choosing the Right One for Your Stack
A practical breakdown of when to use AWS ALB versus NLB, with concrete criteria to help you decide before you deploy.
Understanding BGP and Why Route Leaks Cause Outages
A practical breakdown of how BGP works, what happens when routes leak, and why even large, well-run networks go dark because of a single misconfigured router.
Health checks done right: liveness vs readiness vs deep checks
Not all health endpoints are equal — here's how to design each type correctly so your orchestrator, load balancer, and monitoring tools all get accurate signal.
Backup vs Replication vs DRaaS — What Actually Protects You
Three approaches to disaster recovery that sound similar but fail in completely different ways — here's how to choose the right one for your stack.
Surviving an AWS AZ Failure with Multi-AZ Design
A practical guide to architecting your AWS workloads so a single Availability Zone outage becomes a non-event instead of a crisis.
Disaster Recovery as a Service (DRaaS): A Practical Primer
What DRaaS actually means, how it differs from backup, and the concrete steps to evaluate and implement it for your infrastructure.
Load Balancing Algorithms Compared: Round-Robin vs Least-Connections vs Hashing
A practical breakdown of three core load balancing algorithms—how each works, when to use it, and where it breaks down.
Why us-east-1 Fails the Most — and How to Avoid the Blast Radius
us-east-1 is AWS's oldest, largest, and most failure-prone region — here's what makes it risky and how to architect around it.