// server · headers
www.nhs.uk HTTP Headers
HTTP Headers for www.nhs.uk. Every response header returned by the domain, fetched server-side.
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www.nhs.uk HTTP Headers
Every response header returned by the domain, fetched server-side.
Use this tool to inspect the current state of www.nhs.uk's configuration. The data is fetched live and reflects what every DNS resolver and web client sees right now.
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Why HTTP Headers Matters
Understanding http headers for www.nhs.uk helps with debugging email deliverability, diagnosing connectivity issues, auditing security posture, or simply confirming a recent configuration change has propagated.
If you're seeing unexpected results, double-check the DNS provider that serves www.nhs.uk and any recent zone-file edits.
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How LDNS Looks This Up
LDNS queries are issued live against authoritative public sources at the moment you load the page. There is no caching of historical results — what you see is what was returned just now.
Server-side calls (where applicable) are proxied through Cloudflare with edge caching, but every cache entry is invalidated frequently so the picture stays current.