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75
Total
90
DNS
20
Email
88
Security
55
Network
100
Availability
Domainwww.gov.uk
IPv41
IPv61
MX records2
StatusActive
Domain technical report

Welcome to GOV.UK

www.gov.uk

GOV.UK - The best place to find government services and information.

Generated: 2026-08-08T17:20:13-05:00 · Cached result

JSONCSVPDFVisit site
IPv41
IPv61
MX2
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓
IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

✓
DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

✓
CAA policy5 / 5 pts · Dns

Certificate authority restriction.

!
DNS propagation0 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

2 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

!
DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

141 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers23 / 35 pts · Security

6 of 9 evaluated headers detected.

!
PTR reverse DNS0 / 30 pts · Network

PTR not detected.

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓
IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

3 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.
199.232.68.144

AAAA

3 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.
2a04:4e42:51::144

CNAME

1 record(s)
www-cdn.production.govuk.service.gov.uk.

MX

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

TXT

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

NS

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

SOA

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

CAA

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

DS

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

DNSKEY

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

RRSIG

1 record(s)
CNAME 8 3 900 20260909101500 20260805093655 52549 gov.uk. YJ/2HYUfYttrFr8C8+efMEFbdQ9lrcCi989b4B30olWO5b+WYwijH/5P 1nY3/SbRXbX+gWs7QKZaKkaqOZ97buJy9p1kVBZl+oRx+FFsUcBkGrin 1PuTs0az8Kv9DDdoZ895cWLUYg0gVHbTA0U6xLg9c9OqhVcJxh77FNx6 B/13ccT0L1DvQlrEEv3SpOd8opqZtw1rPQ/AXt1GGhiLi4dY6OsfLl0p 5PrBiRENhva/8PDBBHdJkWceTrGxBL98vrpC13AvpDNTt9wi3fTYsAHa 6G2P0qBh9BzdigJzT2s2jfgMy9NR4cTo8m0vzKQzxumBddJcyVkS3MEG n/Pdwg==

NSEC

0 record(s)
—

Not configured

NSEC3

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

SRV

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

NAPTR

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

TLSA

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

SSHFP

2 record(s)
www-cdn.production.govuk.service.gov.uk.
www-gov-uk.map.fastly.net.

SPF

Not configured
—

Not configured

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Welcome to GOV.UK
Description
GOV.UK - The best place to find government services and information.
Final URL
https://www.gov.uk/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.gov.uk/
Version
3
Server
nginx
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
GlobalSign nv-sa
CN
www.gov.uk
Valid from
2025-11-26T16:06:15-06:00
Valid until
2026-12-28T16:06:14-06:00
Days remaining
141
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256

Security headers

6 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
✓
Permissions PolicyImplemented
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Review
!
Differences detected

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
151.101.0.144, 151.101.128.144, 151.101.192.144, 151.101.64.144
34,91 ms
Cloudflare
1.1.1.1
151.101.0.144, 151.101.128.144, 151.101.192.144, 151.101.64.144
64,15 ms
Quad9
9.9.9.9
151.101.0.144, 151.101.128.144, 151.101.192.144, 151.101.64.144
91,80 ms
OpenDNS
208.67.222.222
151.101.0.144, 151.101.128.144, 151.101.192.144, 151.101.64.144
104,81 ms
AdGuard
94.140.14.14
199.232.88.144
393,96 ms

IP, geolocation and ASNAssociated network information

199.232.68.144

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

www-cdn.production.govuk.service.gov.uk

Port 25: Closed/unreachable - 1 ms - 
Port 465: Closed/unreachable - 4020.7 ms - 
Port 587: Closed/unreachable - 4021.1 ms -

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