Press & data
503Radar is an independent, ad-free outage monitor. It fuses public crowd signals with official status feeds and often surfaces incidents before the provider acknowledges them — with the gap measured and published. Every confirmed outage keeps a permanent record, and every provider has a standing outage history.
Why the data holds up
honesty is the productConfirmed-only archive
Nothing enters the incident archive unless the engine confirmed it — corroborated crowd evidence or the provider's own status page. No synthetic events, ever.
Receipts on every number
Incident pages quote their crowd evidence with source links and link the official status record where one exists. Lead times are our own timestamped sensor observations.
No ads, no tracking, no paywall
503Radar is independent and free. There is no incentive to inflate outages — a false alarm costs us the only asset we have.
Open methodology
The detection model — evidence classes, thresholds, confirmation rules — is public on the methodology page. "Healthy" means no current adverse signal, not an uptime guarantee.
Full detection model: how 503Radar detects and confirms outages →
Embed a live status badge
README-readyEvery provider has a live SVG badge at /badge/{provider}.svg — it mirrors the board's state and updates within minutes. Markdown for a README:
[](https://503radar.com/provider/aws/)
Prefer shields.io styling? Point it at the endpoint JSON: https://img.shields.io/endpoint?url=https://503radar.com/badge/aws.json — swap aws for any provider slug from the board.