14 Services from sentinel.rootstuff.io

Retrieves every DNS record of a specified type for a domain and checks propagation status across multiple public resolvers

Fetches and returns the 402 payment challenge (payment envelope) from a paid HTTP endpoint without actually paying it

Registers a dead-man switch that issues a signed callback to your URL if heartbeats stop arriving within the specified timeout window

Monitors a public URL for 6 hours and delivers signed webhook callbacks whenever its up/down verdict changes

Fetches response headers from a URL and reports on the presence and quality of HTTP security headers

Monitors a public URL for 24 hours and delivers signed webhook callbacks whenever its availability/verdict changes

Monitors a public URL for 1 hour and sends signed webhook callbacks whenever its reachability or status verdict changes

Schedules a single signed HTTP POST callback to a specified URL at a chosen future time or after a delay, echoing back a custom JSON payload.

Retrieves the TLS certificate details and handshake security grade for a given public hostname on port 443

Follows a URL through its full redirect chain and returns each hop up to the final destination

Measures ICMP ping round-trip latency and packet loss for a given hostname or public IP address

Returns the registration expiry date and registrar information for a given domain name

Runs a four-region distributed consensus probe on a URL to verify its reachability and behavior

Checks whether a specific TCP port on a host is reachable and measures the connection latency