Is That Down vs Downdetector

When a tool you rely on goes down, you need to know fast. Two popular options for tracking vendor outages are Is That Down and Downdetector. Both help you understand whether a service is experiencing issues, but they take fundamentally different approaches to getting that information.

This comparison breaks down how each tool works, what it costs, and who it serves best so you can make an informed choice.

How They Work

Downdetector is built on crowdsourced user reports. When users experience issues with a service, they visit Downdetector and submit a report. The platform aggregates these reports to create outage heat maps and trend charts. It is primarily a consumer-facing tool supported by advertising revenue.

Is That Down takes a different approach by performing actual status checks against vendor status pages and APIs. Rather than relying on user-submitted complaints, it monitors official sources to determine whether a service is truly experiencing an outage. This means you get cleaner, more reliable signals rather than noisy spikes driven by user frustration.

Feature Comparison

Data Quality

This is where the two tools differ most. Downdetector's crowdsourced model means that report volume often correlates with a service's popularity rather than the severity of an outage. A minor Slack hiccup affecting a handful of users can look identical to a major outage because frustrated users rush to report it. Conversely, a critical outage at a less popular service might barely register.

Is That Down pulls from official status pages, which means the data is authoritative. If a vendor has acknowledged an incident on their status page, Is That Down reflects it. This approach produces fewer false positives and gives you a clearer picture of what is actually happening.

Pricing and Value

Downdetector is free to use but supported by advertising. The experience includes banner ads and sponsored content. There is a premium tier, but the core consumer product is ad-supported and limited in its notification capabilities.

Is That Down offers a generous free tier that covers 30+ vendors with public status pages anyone can check. The paid plan at $9/month unlocks email and Slack alerts, full incident history, uptime reports, and custom watchlists. There is no advertising, and the pricing is straightforward with no per-seat charges or enterprise tiers required.

Who Should Use Downdetector

Downdetector works well if you are an individual consumer who wants a quick check on whether a popular service is having issues. The crowdsourced model gives you a sense of whether other people are also experiencing problems, which can be reassuring when you are troubleshooting. If you do not need alerts or historical data and do not mind ads, Downdetector is a decent free option for occasional use.

Who Should Use Is That Down

Is That Down is built for teams and businesses that depend on third-party vendors. If you run an e-commerce store on Shopify, communicate through Slack, or process payments through Stripe, knowing about outages quickly and reliably matters. The B2B focus means the tool is designed for operational workflows rather than consumer curiosity.

The combination of reliable status data, configurable alerts, and incident history makes Is That Down a stronger fit for anyone who needs monitoring they can act on, not just a popularity contest of user complaints.

The Bottom Line

Downdetector and Is That Down serve different audiences with different methodologies. Downdetector is a consumer tool powered by crowdsourced data, best for quick one-off checks. Is That Down is a monitoring tool powered by official status data, built for teams that need reliable, actionable outage information.

If you need accurate vendor status monitoring with real alerts and history, Is That Down is the better choice.