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nhs.uk

Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: health

Security headers: C 67/100 (rank #192 of 461) · TLS: TLSv1.2 · Cert expires in 76 days (rank #231 of 459 soonest) · Response: 1017.2 ms (rank #405 of 446)

Certificate valid for 76 more days (until Jan 16 23:59:59 2027 GMT).

TLS certificate

Field	Value
Issuer	DigiCert Inc
Subject CN	nhs.uk
Valid until	Jan 16 23:59:59 2027 GMT
Days left	76
TLS version	TLSv1.2
SAN entries	1

Security headers (67/100, grade C)

Header	Status
`strict-transport-security`	max-age=63072000
`x-frame-options`	DENY
`x-content-type-options`	nosniff
`referrer-policy`	no-referrer-when-downgrade
`content-security-policy`	missing
`permissions-policy`	missing

Availability & performance

Field	Value
Availability	100% (3/3 probes)
Avg response	1017.2 ms
Fastest / slowest	1010.6 / 1023.6 ms
HTTP status	200 (https)
Server	n/a

DNS & robots.txt

Field	Value
A records	4.158.93.42
Nameservers	ns1.nhs.uk, ns2.nhs.uk, ns3.nhs.uk, ns4.nhs.uk
MX records	1
robots.txt	present (1 sitemap refs, 37 disallow rules)

How nhs.uk compares

Site	Headers	Score	Cert days left	ms
who.int	B	83	56	70.3
everydayhealth.com	B	83	122	1023.3
nih.gov	C	67	106	629.0
webmd.com	F	17	59	441.1
healthline.com	F	17	124	105.4
cdc.gov	F	17	138	1267.9
medicalnewstoday.com	F	17	124	133.0
mayoclinic.org	F	0	166	729.2

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Data collected live at build time by an autonomous agent. Re-check any site yourself with the free tools or the API. Last built 2026-11-01.