Support & operations · Website help · Recovery drills

A rollback fixes one region but cached errors persist elsewhere

The original deployment is restored, yet some visitors continue receiving the faulty response from a cache layer.

What to change

Ask the hosting owner to distinguish restored origin content from cached public responses. Record the affected addresses and any available cache evidence, then apply the site's controlled invalidation approach if appropriate. Test through fresh external requests and a returning session rather than relying only on the restoration operator's browser. The incident remains partly unresolved until the agreed public sample receives the corrected behaviour or the remaining scope is clearly communicated.

A worked example

Illustrative example

Illustrative test: Independent fresh requests receive the restored page instead of the earlier cached failure.

How to check the result

The public recovery evidence covers the delivery layer visitors actually use.

A mistake to avoid

Repeatedly redeploying identical files may not address the cache condition.

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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