Support & operations · Website help · Monitoring and incident triage

A monitoring service is blocked by the website firewall

The alert reports an outage even though ordinary visitors can reach the site. The probe receives a security challenge.

What to change

Compare the monitor's response with an authorised ordinary visitor request before declaring a public outage. Ask the host to identify the relevant security rule and the monitoring service's documented request behaviour. A narrowly scoped approved adjustment may be appropriate, but retain protection against unwanted traffic. Also consider whether the check's method realistically represents the public task. Preserve the distinction between monitor accessibility and visitor availability in incident reporting.

A worked example

Illustrative example

Illustrative test: The authorised probe succeeds while the intended security protections remain effective.

How to check the result

The monitoring result and its access assumptions are documented.

A mistake to avoid

Disabling the whole firewall to silence one alert creates unnecessary exposure.

Your action checklist

Use these checks to prepare a discussion with your team or supplier. Tick a check when you have recorded the decision or evidence, rather than when a feature has simply been promised.

Decisions to record

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Healthcare website maintenance with infrastructure, a status panel, tools and an operational checklist.
Monitor the useful journey, not just whether a server responds.
Healthcare backup and recovery illustrated by storage copies, an archive folder and a restoration route.
Test whether a backup can restore a usable service.
Healthcare digital support handover with an inventory, key, incident timeline and dependency map.
Keep responsibilities and recovery instructions available.

Further reading

These primary sources provide additional context for the project decisions above.

Related decisions

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