Performance Watch
Slow is the new down.
A checkout that takes nine seconds loses almost as many orders as one that fails. Performance Watch tracks response times from every region, breaks each request into its phases and warns you in amber long before anything turns red.
p95 response time by region with a degraded threshold
How it works
Set up in four beats.
- 01
Set a budget
Pick a response time target per monitor, such as p95 under 800 ms.
- 02
Watch every phase
DNS, connect, TLS, time to first byte and download, per region.
- 03
Get amber alerts
Breach the budget for a sustained period and the monitor turns degraded.
- 04
Find the slow ones
A ranked list of your slowest endpoints and how they changed this week.
Capabilities
What you get with Performance Watch.
Percentiles
p50, p95 and p99 per region, so outliers do not hide inside averages.
Request breakdown
See whether time goes to DNS, TLS handshakes or your own server.
Core Web Vitals
LCP, INP and CLS from synthetic page loads on desktop and mobile profiles.
Degraded alerts
Amber alerts that go to a channel, not a phone, unless you choose otherwise.
Slow endpoint ranking
The ten endpoints that cost you the most time, updated hourly.
Weekly trends
Spot the release that added 300 ms before customers feel it.
Specifications
The details engineers ask about.
- Metrics
- p50, p95, p99, DNS, connect, TLS, TTFB, download
- Web Vitals
- LCP, INP, CLS on desktop and mobile profiles
- Data retention
- 13 months on Scale
- Alerting
- Degraded state with sustained-breach rules
- Export
- CSV and REST API
- Availability
- Scale plan
FAQ
Performance Watch questions
Is this real user monitoring?
No. Performance Watch uses synthetic checks from our regions, which gives consistent numbers you can compare day to day.
Will slow responses page someone?
Only if you want them to. By default degraded alerts go to a channel, and only downtime pages on-call.
Which pages should I watch for Web Vitals?
Start with the pages that make money: home, product, cart and checkout, or sign up and login.
Same pulse
Works together with
60 bpm 10 monitors · 1-minute checks · free, no time limit