Paste an HLS playlist or MPEG-DASH manifest for a free check. Add 24x7 monitoring and we alert you the moment something breaks.
Used by engineers and broadcasters worldwide
The same engine runs the free check and the paid 24x7 monitoring.
HLS against RFC 8216 and DASH against ISO/IEC 23009-1. These are the tests behind our HLS certification program.
Downloads segments as a player would and reports timeouts, stalls, gaps and HTTP errors for each rendition.
Follows SCTE-35 cues in HLS playlist tags and DASH EventStream, and flags missing markers and ad breaks of the wrong length.
Decodes CEA-608 and CEA-708 captions from transport-stream segments, live, with an optional 30-day archive.
A free check runs for 15 minutes. Monitoring runs around the clock and tells you the moment something breaks.
The short answers. Ask us if yours isn't here.
Yes. You can run a few checks without an account. A free account includes 10 stream checks per month, and each check runs for up to 15 minutes. Paid validation plans extend a single check to 3 hours.
Validation runs a time-limited analysis of a stream you submit, which is useful while developing or troubleshooting. Continuous monitoring keeps checking a stream over time and sends the outage alerts you configure, with results available through the dashboard and the REST API. See monitoring plans.
Monitoring is counted per HLS media playlist or DASH representation, rather than by channel name. A channel with several renditions can therefore use more than one monitored item. Current plans and quantities are listed on the pricing page.
Our Privacy Policy describes how we handle the data you submit. Submit only streams you own or control, and use a test stream when evaluating the service. If you have a specific question about a stream URL or its credentials, contact us.
Use the contact form and describe the stream and the problem you are seeing. Including the stream URL and the time the problem occurred helps us investigate.
For closed networks, for wiring results into your own tools, and for proving your server meets the HLS specification.