Source
Checks, locations & failure confirmation — found from sitemap — Oh Dear
Checked for Oh Dear on 1 Nov 2026
- Page
- https://ohdear.app/features/tcp-port-monitoring
- Checked
- 1 Nov 2026, 10:39 UTC
- How we may use it
- Public page, crawling permitted
Technical details
- type
- page
- http status
- 200
- content hash
- sha256:21e0658ea9f79496294e122999e00b7536384c2f329303e03642132d515908c7
- permission
- robots_ok
- screenshot
- Screenshot on file (internal exhibit, not published)
Cited by
Facts read from this source
-
Tcp port monitoring available Report an error
“TCP port monitoring is included on every plan.”
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No feature tiers Report an error
“Every feature on every plan”
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Model Report an error
“You pay for the number of things you monitor, not per check.”
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Trial Report an error
“10-DAY FREE TRIAL · NO CREDIT CARD REQUIRED”
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Check scope Report an error
“A TCP connect from Oh Dear's servers to the hostname and port you name.”
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Banner match Report an error
“Optionally, whether the welcome banner contains text you specified.”
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Reply match Report an error
“Optionally, whether the reply to a string you send contains text you expect.”
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String match type Report an error
“Both are plain substring matches rather than patterns, and both are skipped when left empty.”
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Locations Report an error
“Two locations. Each monitor has a primary location, and a failure there is re-checked from a second one in a different city and on a different provider. Both have to report the port down before a downtime notification goes out.”
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Check interval Report an error
“Cadence. Every minute by default, and settable per monitor anywhere from one to sixty minutes.”
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Connect timeout Report an error
“New monitors wait one second. This is the wait for the connection, not how often the check runs.”
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Alert threshold Report an error
“Before you are alerted. Two minutes of downtime by default, settable from one to twenty.”
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No agent Report an error
“No agent. The connection comes from Oh Dear's servers, from outside your network. Nothing is installed on the machine being checked.”
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One host port per monitor Report an error
“The target. One hostname and one port per monitor. Two ports on the same box are two monitors”
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Published ips Report an error
“The addresses Oh Dear checks from are published at /used-ips, in JSON and CSV as well as HTML, and updated automatically as servers are added or retired.”
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Routing per monitor Report an error
“Each monitor routes to the people responsible for that box, on the channels they already use.”
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Not port scanning Report an error
“Which ports are open that should not be. That is the daily sweep in port scanning.”
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Not synthetic checkout Report an error
“This check is not a synthetic checkout. It opens a connection and, optionally, matches a string.”
2 facts read from this page are not shown because they could not be confirmed on the page as captured.
Scores citing this record
- The Agency Developer Checks, locations & failure confirmation
- The Customer Support Lead Checks, locations & failure confirmation
- The Customer Support Lead Alerting, escalation & on-call
- The Customer Support Lead Uptime reports, data & the vendor's own reliability
- The Customer Support Lead Pricing transparency
- The E-Commerce Operations Manager Checks, locations & failure confirmation
- The E-Commerce Operations Manager Alerting, escalation & on-call
- The E-Commerce Operations Manager Uptime reports, data & the vendor's own reliability
- The SaaS Platform Engineer Checks, locations & failure confirmation
- The SaaS Platform Engineer Uptime reports, data & the vendor's own reliability
- The Information Security Officer Checks, locations & failure confirmation
- The Information Security Officer Uptime reports, data & the vendor's own reliability
- The Skeptic Checks, locations & failure confirmation
- The Skeptic Uptime reports, data & the vendor's own reliability