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number10.gov.uk

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

Last scanned Aug 24, 2026, 1:21 PM

96

Overall score

Excellent

Summary

10 Downing Street is the official residence and the office of the British Prime Minister. This website uses Nginx behind Fastly CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.

10 Downing Street is the official residence and the office of the British Prime Minister. The office helps the Prime Minister to establish and deliver the government’s overall strategy and policy priorities, and to communicate the government’s policies to Parliament, the public and international audiences.

Top issues to fix

1 issue found

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

95

SEO

1 issue(s) found

90

Performance

1.14 s

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

10 Downing Street is the official residence and the office of the British Prime Minister. The office helps the Prime Minister to establish and deliver the government’s overall strategy and policy priorities, and to communicate the government’s policies to Parliament, the public and international audiences.

YouTubeX (Twitter)InstagramFacebook

Meta tags

Title
Prime Minister's Office, 10 Downing Street - GOV.UK
Description
10 Downing Street is the official residence and the office of the British Prime Minister. The office helps the Prime Minister to establish and deliver the government’s overall strategy and policy priorities, and to communicate the government’s policies to Parliament, the public and international audiences.
Canonical
https://www.gov.uk/government/organisations/prime-ministers-office-10-downing-street
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
max-image-preview:none
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Prime Minister's Office, 10 Downing Street
og:description
10 Downing Street is the official residence and the office of the British Prime Minister. The office helps the Prime Minister to establish and deliver the government’s overall strategy and policy priorities, and to communicate the government’s policies to Parliament, the public and international audiences.
og:type
article
og:url
https://www.gov.uk/government/organisations/prime-ministers-office-10-downing-street

Twitter Card

twitter:card
summary
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider
—
CDN provider
Fastly
IP address
151.101.64.144
ASN
—

DNS records

TypeValue
A
  • 151.101.64.144
  • 151.101.128.144
  • 151.101.0.144
  • 151.101.192.144
AAAA
  • 2a04:4e42::144
  • 2a04:4e42:400::144
  • 2a04:4e42:200::144
  • 2a04:4e42:600::144
MX—
TXT—
NS—
CAA—
CNAME
  • www-cdn.production.govuk.service.gov.uk
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
GlobalSign nv-sa
Subject
www.gov.uk
Valid from
Nov 26, 2025
Valid to
Dec 28, 2026
Days until expiry
126
SAN domains
www.gov.uk, *.businesslink.gov.uk, *.direct.gov.uk, *.publishing.service.gov.uk, *.cabinet-office.gov.uk, assets.digital.cabinet-office.gov.uk, service.gov.uk, data.gov.uk, dfid.gov.uk, cabinet-office.gov.uk, api.gov.uk, www.data.gov.uk, gov.uk

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyEnabled

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 13 · H3 7

Links

48 internal · 12 external · 0 broken

Images

3 total · 0 missing alt

Scripts / Styles

7 scripts · 2 stylesheets

JS / CSS size

191 KB · 291 KB

Page size

76.6 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
5
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Meta description longer than 160 characters

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://number10.gov.uk
Final URL
https://www.gov.uk/government/organisations/prime-ministers-office-10-downing-street
HTTP status
200
HTTP version
HTTP/2
Response time
1.14 s
HTML size
76.6 KB
Redirect chain
https://number10.gov.uk → https://www.gov.uk/government/organisations/prime-ministers-office-10-downing-street

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Frequently asked questions

What technology does number10.gov.uk use?
number10.gov.uk is built with Nginx.
Is number10.gov.uk secure (HTTPS)?
Yes. number10.gov.uk uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Dec 28, 2026.
Who hosts number10.gov.uk?
Hosting provider information for number10.gov.uk is not available yet.
What is number10.gov.uk's SEO score?
number10.gov.uk scored 95/100 for SEO in the latest analysis (excellent).
What is number10.gov.uk's overall website score?
number10.gov.uk has an overall SiteGraph score of 96/100, combining SEO, performance, security, and accessibility.