DNS, certificates, domains and connectivity in one overview.
See the layers behind your service
Check DNS, TLS, Ping, ports and service protocols. Monitor domain expiry as an optional HTTP/HTTPS warning.
Free to use · view quotasTwo example series · solid and dashed
Two example series · solid and dashed
Two example series · solid and dashed
- DNS answer matchesCurrent
- Certificate · 34 days remainingCurrent
- TCP connection · 12 msCurrent
- Domain warning in HTTPUnknown · no current result
What you can monitor
Three ways to make the result useful
Connect results, incidents and status updates. Data gaps stay visible.
Check names and certificates
Check connections
Respect unknown results
Understand your data
Focused checks, clear decisions
Choose a target, locations and expected outcome. Confirmation rules reduce reactions to brief glitches; history preserves earlier observations.
Two example series · solid and dashed
Two example series · solid and dashed
Two example series · solid and dashed
- DNS answer matchesCurrent
- Certificate · 34 days remainingCurrent
- TCP connection · 12 msCurrent
- Domain warning in HTTPUnknown · no current result
Your first steps
Your first steps
Connect your source in three steps.
- 01
Choose the network family
Select the check type that answers your question.
- 02
Configure its target
Use an allowed target and only the required credentials, if any.
- 03
Review and alert
Check the first result, then explicitly enable suitable alarm suggestions.
Good to know
Frequently asked questions
Answers and setup guides.
Are all protocols available everywhere?
Does an unknown domain date mean the domain expired?
Your next step
Make the next step clear
Choose your setup and connect your first source.