number10.gov.uk

Prime Minister's Office, 10 Downing Street - GOV.UK

● HTTP 200 → https://www.gov.uk/government/organisations/prime-ministers-office-10-downing-st

🛡 Security Posture — 6/7 checks passing

🔒

HTTPS

✓ Yes

🛡

HSTS

✓ Yes

📧

SPF

soft-fail

✉️

DMARC

✗ No

🤖

robots.txt

✓ Yes

🔐

security.txt

✓ Yes

🗺

sitemap.xml

✓ Yes

🌐 DNS Records

A	151.101.130.30
	151.101.66.30
	151.101.194.30
	151.101.2.30
MX	10 cluster8.eu.messagelabs.com.
	20 cluster8a.eu.messagelabs.com.
NS	ns0.bt.net.
	ns1.bt.net.
	ns2.bt.net.
TXT	"v=spf1 include:spf.messagelabs.com ~all" (SPF)
SOA	ns0.bt.net. hostmaster.bt.net. 2017020318 28800 7200 604800 86400

📋 WHOIS

Registrant UK Cabinet Office

Type UK Government Body

Registered 1996-08-01T00:00:00+00:00

Registrar No registrar listed. This domain is directly registered with Nominet.

⚡ HTTP Details

Status 200

Server nginx

DNS Host Bt.Net

Final URL https://www.gov.uk/government/organisations/prime-ministers-…

Content-Type text/html

📧SPF Record — policy: soft-fail

v=spf1 include:spf.messagelabs.com ~all

🔐security.txt

Policy: https://www.gov.uk/help/report-vulnerability

Contact: https://hackerone.com/44c348eb-e030-4273-b445-d4a2f6f83ba8/embedded_submissions/new
Contact: https://www.gov.uk/contact/govuk

Acknowledgments: https://vdp.cabinetoffice.gov.uk/thanks.txt

Hiring: https://www.civilservicejobs.service.gov.uk/

Last-Updated: 2026-06-15 03:07:42+00:00

Expires: 2026-09-15 03:07:42+00:00

Generated at: https://github.com/CO-Cyber-Security/security.txt

🤖robots.txt

User-agent: *
Disallow:
Sitemap: http://number10.gov.uk/sitemap.xml

Data collected: 21 June 2026