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Gridlode
Rank #8,815Updated November 10, 2026

hmrc.gov.uk

HM Revenue & Customs - GOV.UK

The site runs on Ruby on Rails, Varnish, Fastly and 4 other technologies. Its email security grade is A. Its SSL certificate is issued by Amazon and is valid for 180 more days.

Domain age
—
Technologies
7
Email security
A
SSL days left
180

DNS records

TypeValueTTL
A3.161.82.8560
A3.161.82.3560
A3.161.82.10460
A3.161.82.12460
MXhmrc-gov-uk.mail.protection.outlook.com 060
NSns-1301.awsdns-34.org172800
NSns-1614.awsdns-09.co.uk172800
NSns-343.awsdns-42.com172800
NSns-525.awsdns-01.net172800
TXTDynatrace-site-verification=4279ea94-37fc-4fec-a218-497a44d24ead__l6gq98me8f2eais4top3sd37i07200
TXTMS=ms287636297200
TXTOSSRH-639677200
TXT_932qsb1broz8i3l2nij8vq29rpizyj17200
TXT_dg750iinnrnuctkt5emybzejc9s8klu7200
TXT_gyx1tuzrk74lf8m8eyxyaql8rk9p6iq7200
TXT_wacel79i0a5biokt2e235dqnnzazvn07200
TXT_widga9vksj13aufol0fr532l100sh6h7200
TXT_x5tfrbvxocbwc9izpxvs7ncy0k25d4v7200
TXT_yffukeq36ilt4li62rgbnctixnwl68l7200
TXTadobe-idp-site-verification=f31528e5dbb46651f643dde6da6210fcb677727aa0dcc8c69dd8f3b6d22fb2b97200
TXTapple-domain-verification=k5vwo0gSV3ATZe727200

Technology stack

Cache
Varnish
CDN
Fastly
Programming language
Ruby
Security
Content Security PolicyHSTS
Web framework
Ruby on Rails
Web server
Nginx

SSL certificate

ValidValid
IssuerUS, Amazon RSA 2048 M01, Amazon
ExpiresMay 10, 2027
Days remaining180
ProtocolTLSv1.3
Namescname-hmrc-gov-uk.production.tax.service.gov.uk, hmrc-gov-uk.vpn.production.tax.service.gov.uk, hmrc.gov.uk, hmrc-gov-uk.isc.production.tax.service.gov.uk, redirect.hmrc.gov.uk, www.hmrc.gov.uk, www.inlandrevenue.gov.uk, hmrc-gov-uk.production.tax.service.gov.uk

Email security

AScore 93/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnDKIM key found (selector: selector1) but it is only 1024 bits; 2048 is recommended.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
  • goodDMARC policy is reject: mail that fails authentication is blocked.
  • goodDMARC aggregate reports are sent to mailto:[email protected], mailto:[email protected], mailto:[email protected].
  • good1 MX record(s) found. Mail is handled by Microsoft 365.
  • goodMTA-STS is enforced: other servers must use verified TLS when sending you mail.
  • goodTLS-RPT is set up: you receive reports about failed encrypted deliveries.

Homepage metadata

TitleHM Revenue & Customs - GOV.UK
DescriptionHMRC is the UK’s tax, payments and customs authority, and we have a vital purpose: we collect the money that pays for the UK’s public services, help families and individuals with targeted financial support and provide the property valuations that support taxation and benefits. We do this by being impartial and increasingly effective and efficient in our administration. We help the honest majority to get their tax right and make it hard for the dishonest minority to cheat the system. HMRC is a non-ministerial department, supported by 1 public body .
Languageen
Canonicalhttps://www.gov.uk/government/organisations/hm-revenue-customs
Structured dataGovernmentOrganization, BreadcrumbList
IndexableNo (noindex)
Word count1449

About hmrc.gov.uk

What technology does hmrc.gov.uk use?

We detected 7 technologies on hmrc.gov.uk, including Varnish, Fastly, Ruby, Content Security Policy, HSTS, Ruby on Rails.

Does hmrc.gov.uk protect its email with SPF and DMARC?

hmrc.gov.uk scores 93/100 (grade A) for email security. DKIM key found (selector: selector1) but it is only 1024 bits; 2048 is recommended. No BIMI record (optional: shows your logo next to your emails in supporting inboxes).

What are the name servers of hmrc.gov.uk?

hmrc.gov.uk uses ns-1301.awsdns-34.org, ns-1614.awsdns-09.co.uk, ns-343.awsdns-42.com, ns-525.awsdns-01.net.