Website readiness profile · Snapshot 23 October 2026
www.nhs.uk
www.nhs.uk's public homepage, certificate and DNS checked against 31 practices and compared with 613 Fitness & Health sites.
- Readiness index
- 75/100
- Ahead of
- 75%
- Practices observed
- 19/28
- Popularity band
- Top 5K
Fitness & Health median 67
of measured Fitness & Health sites
3 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: www.nhs.uk. Thin bar: Fitness & Health peer median.
Enable
87/100
Peers 82
Harden
69/100
Peers 59
Accelerate
70/100
Peers 63
Recover
n/a/100
Peers 10
Priority fixes for www.nhs.uk
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
DMARC policy enforces quarantine or reject
Observed: No DMARC record was found at _dmarc.www.nhs.uk.
Why it matters: An enforcing DMARC policy helps receiving mail systems reject email that falsely claims to come from your domain, a common route for phishing your customers.
What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.
44% of Fitness & Health peers do this. Limit: Read from public DNS at the time of the check; records may have changed since.
Priority 2 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 1 external script without async or defer.
What to do: Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.
45% of Fitness & Health peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 3 · Harden
Content Security Policy present
Observed: The homepage response did not include a Content-Security-Policy header.
What to do: Start with Content-Security-Policy-Report-Only to see what would break, tighten the policy over a few weeks, then enforce it.
38% of Fitness & Health peers do this.
Guide: Payment Security and PCI DSS: What Website Owners Need to Know
Priority 4 · Enable
Structured data present
Observed: The homepage had no JSON-LD structured data.
What to do: Add JSON-LD for your organization and main content types, then test it with Google's Rich Results Test.
63% of Fitness & Health peers do this.
What www.nhs.uk already does well
Practices fewer than half of Fitness & Health peers use.
- security.txt publishedsecurity.txt with a contact found.7.3% of peers
- Referrer-Policy setReferrer-Policy present.33% of peers
- HSTS kept for at least a yearHSTS with a 730-day max-age.43% of peers
What we saw
- Homepage checked
- https://www.nhs.uk/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- DigiCert, 198-day validity, expiring 2027-01-27
- CDN or edge
- Akamai, Azure Front Door/CDN
- HSTS
- max-age 730 days
- Homepage HTML
- 31 KB, gzip
- Images on homepage
- 0
Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.
Stack and providers
Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.
All 31 checks
Select a gap for the method and fix. How each check works
Not observed 9
Observed 19
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- security.txt published
- X-Content-Type-Options: nosniff
- Framing restricted
- Referrer-Policy set
- HTTP/2 negotiated
- HTML compressed
- Static files cached for 30 days or more
- robots.txt published
- XML sitemap discoverable
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Not measured 3
- Modern image formats in use
- Offscreen images lazy-loaded
- Nameservers spread across providers
Own www.nhs.uk?
Re-run the checks after a change, keep a private action plan in a free workspace, or report a mistake.
Live status for this site: Status Is Down: www.nhs.uk. This profile covers configuration only.