100+ regions · AWS · GCP · Azure
See how the internet reaches your service
Run DNS, TLS & HTTP checks from every major cloud region
Diagnose connectivity from any cloud region
Full per-region breakdown of DNS, TLS, HTTP and latency.
DNS lookup
A, AAAA, CNAME, MX and more — resolved from each region so you catch geo-split or stale records. See the exact IPs every region returns and confirm a DNS change has propagated worldwide.
HTTP / HTTPS
Status, headers, redirects and time to first byte for any URL, per region. See the response headers and the redirect target each region reports, with the full DNS → TCP → TLS → TTFB timing breakdown.
TLS certificate
Chain, expiry, issuer and protocol — verified from every region. Catch certificates that are expiring soon, misconfigured, or serving a different chain in some regions before your users do.
TCP latency
See how long the TCP handshake to each region's endpoint takes, measured as part of every HTTP(S) check. Isolate whether a region's slowness is the connection setup, the TLS negotiation, or the server itself.
Response time & availability
Compare response time region by region and spot the slow ones instantly. Regions are ranked fastest to slowest so you can see at a glance which are degraded or failing outright.
Scheduled checks
Save any probe and run it automatically on a schedule from the regions you care about. RegionCheck keeps watching around the clock so you catch regional outages before your users report them.
Performance graphs & status history
See latency and availability plotted over time, with the full run history for every region. Spot slow trends early and confirm exactly when a region degraded and when it recovered.
Alerting
Get notified by email or webhook the moment a scheduled check detects a failure or degradation. Route incidents to the channels your team already uses so nothing slips through.
Amazon Web Services · Google Cloud · Microsoft Azure
Use it however you work
The UI, API and MCP server are at full feature parity.
Web UI
Run a check and read scannable, region-by-region results in your browser.
HTTP API
Drive every check from scripts and CI with stable, structured JSON responses.
MCP server
Let AI agents run the same checks through the Model Context Protocol.
Built for the people who keep systems running
Cloud and platform teams debugging regional issues.
DevOps engineers
Confirm a deploy or DNS change reached every region before you move on.
SREs
Tell a regional outage from a target problem in seconds during an incident.
Cloud architects
Compare real latency and availability across AWS, GCP and Azure regions.
Sysadmins
Spot expiring certs and broken redirects from anywhere in the world.
Start checking your endpoints now
Free to run. Create an account to save checks, automate with the API, and monitor on a schedule.
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