ncsc.gov.uk

The National Cyber Security Centre | National Cyber Security Centre

● HTTP 200 → https://www.ncsc.gov.uk/

🛡 Security Posture — 6/7 checks passing

🔒

HTTPS

✓ Yes

🛡

HSTS

✓ Yes

📧

SPF

fail

✉️

DMARC

✗ No

🤖

robots.txt

✓ Yes

🔐

security.txt

✓ Yes

🗺

sitemap.xml

✓ Yes

🌐 DNS Records

A	99.86.12.100
	99.86.12.19
	99.86.12.24
	99.86.12.113
MX	0 ncsc-gov-uk.mail.protection.outlook.com.
NS	ns-1018.awsdns-63.net.
	ns-1064.awsdns-05.org.
	ns-1863.awsdns-40.co.uk.
	ns-334.awsdns-41.com.
TXT	"apple-domain-verification=XcjoJFjSHOEl1l0x" (Apple Domain Verification)
	"atlassian-domain-verification=0YfuEpktsCUA4qzo9up3b7Oc5wMv3wGmMqVsNiuqHY4QKiZ/5AYmSaNLK73IbLLP" (Atlassian Verification)
	"d365mktkey=6979ze2417adit18q17fepsqd"
	"google-site-verification=fVTp_isR1Kujpthr7JeHpEf5sR7UbOjJ-XOUpngXej8" (Google Site Verification)
	"google-site-verification=npZLRIpp2M5JRXldE1y_hOb5X7hnfB-34T8osuxyxXE" (Google Site Verification)
	"v=spf1 include:spf.protection.outlook.com -all" (SPF)
	"wLOq0jjevbdDkZ/BEbQZhD5jXcdncT4+h2JkY605uzs="
SOA	ns-1064.awsdns-05.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
CAA	0 iodef "mailto:infrastructure@ncsc.gov.uk"
	0 issue "Digicert.com"
	0 issue "amazon.com"
	0 issue "comodo.com"
	0 issue "globalsign.com"
	0 issue "letsencrypt.org"
	0 issue "pki.goog"

📋 WHOIS

No WHOIS data available

⚡ HTTP Details

Status 200

Server cloudflare

DNS Host AWS Route 53

Final URL https://www.ncsc.gov.uk/

Content-Type text/html

📧SPF Record — policy: fail

v=spf1 include:spf.protection.outlook.com -all

🔐security.txt

Canonical: https://www.ncsc.gov.uk/.well-known/security.txt
Contact: mailto:security@ncsc.gov.uk
Encryption: https://www.ncsc.gov.uk/sites/default/files/2026-02/ncsc_public_2026-09-11_3446EC55.asc
Expires: 2026-11-09T00:00:00Z
Policy: https://www.ncsc.gov.uk/vulnerability-reporting
Preferred-Languages: en

🤖robots.txt

# As a condition of accessing this website, you agree to abide by the following
# content signals:

# (a)  If a Content-Signal = yes, you may collect content for the corresponding
#      use.
# (b)  If a Content-Signal = no, you may not collect content for the
#      corresponding use.
# (c)  If the website operator does not include a Content-Signal for a
#      corresponding use, the website operator neither grants nor restricts
#      permission via Content-Signal with respect to the correspon

Data collected: 21 June 2026