Follow one request through forty services.
Waterfalls that read like a story: every span, tagged and timed, from edge to database and back. Click any bar, see its logs inline.
KESTREL // REAL-TIME OBSERVABILITY
See it before it breaks.
Kestrel ingests every span, log, and metric your stack emits and turns it into one living picture — fast enough to catch an incident while it is still a curiosity.
▲ INGEST 4.2M SPANS/S
·
P99 QUERY 47MS
·
DROPPED BATCHES 0
·
SERVICES MAPPED 214
INSTRUMENTED BY TEAMS AT
Your whole stack, on one pane.
This is a real Kestrel workspace. Scroll — it assembles the way your data does.
● production ▾
overview
⌘K to search
p99 latency — checkout-api
error budget — checkout slo
99.97%
62% budget left
throughput — spans/s
service map — 214 services
trace — POST /v1/checkout · 412ms
live logs — production
14:02:11.482 INFO checkout-api · span=9f2e41 order accepted · 96ms
14:02:11.907 INFO payments · span=9f2e41 charge authorized · psp=stripe
14:02:12.114 WARN payments · span=b81c02 retry 1/3 · upstream timeout 900ms
14:02:12.688 INFO postgres · span=b81c02 pool wait 212ms · conns 96/100
14:02:13.020 WARN checkout-api · span=b81c02 p99 envelope breach · +38%
▲ anomaly: p99 +38% checkout-api
✓ auto-grouped · 1 page sent
Three instruments. One reflex.
Pages that deserve to wake you.
Burn-rate alerts on real error budgets, auto-grouped by root cause. Kestrel customers cut pager noise by 87% in the first month.
Budgets, not vibes.
Define what good means once. Kestrel tracks the budget, forecasts the burn, and shows you exactly what you can afford to ship.
Numbers we obsess over.
2.1B
spans ingested per day
47ms
median query across 30 days of traces
12s
from anomaly to page
99.99%
ingest availability, last 12 months
MEASURED ON OUR OWN KESTREL WORKSPACE. OF COURSE.
LAUNCH FILM // 00:10
Live in an afternoon.
One OpenTelemetry line.
No agents, no sidecars, no forked SDKs.
export OTEL_EXPORTER_OTLP_ENDPOINT=https://in.kestrel.dev
Spans land in under a second.
Straight into Kestrel's columnar store, indexed on arrival.
The picture draws itself.
Dashboards, maps, and alerts assemble themselves from your topology. Zero config to first insight.
— MARA CHEN, PLATFORM LEAD, NIGHTJAR“Kestrel found a retry storm we'd been paying for, in cloud spend, for a year.”
— TOMÁS RIVERA, SRE, LOOPWIRE“We deleted four Grafana boards and nobody noticed. That's the compliment.”
— A. OKAFOR, CTO, CORVID“The 3am pages didn't stop. But now they're always right.”
Stop tailing logs. Start seeing.
Free for 1M spans a month. Five minutes to first trace.
Create your workspace