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GSK plc Professional & Scientific Services

FTSE 100 constituent (GSK)

Overview

GSK plc sits in the Professional & Scientific Services sector, with its web presence centred on gsk.com and 201 subdomains on record; among the examples are servicenowsand.gsk.com, tpp-ver.gsk.com, and three "accounts-" hosts. The domain is registered through SafeNames Ltd., 1998-08-07 to 2027-08-06. The crawl of gsk.com shows one page fetched and no internal links observed; TLS is issued by Let's Encrypt, with HSTS and a CSP both present, and DNS carries SPF plus a DMARC policy of reject. Infrastructure is attributed to Akamai International B.V. (ASN 20940), with nameservers on akashield.net. Companies House lists an active company, number 03888792, SIC 70100 (activities of head offices), incorporated 1999-12-06 (previous name on file: GlaxoSmithKline plc), with zero persons of significant control on file. A GitHub organisation, GSK-AI, holds 10 repositories and 91 stars, attribution confirmed.

Generated from the data on this page and independently fact-checked against it.

Web presence

Primary domain: gsk.com. 206 subdomains observed via Certificate Transparency and direct crawl.

1 pages fetched from gsk.com on 2026-08-26 — 0 internal links observed, 413191 bytes. Page title: “Home | GSKHealthcare professionalsContact usHealthcare professionalsContact us”

TLS issued by Let's Encrypt, valid 2026-06-22 – 2026-09-20. Certificate also covers: admin.gsk-on.com.br, aem-sre-jenkins.gskinternet.com, apretudeonline.com, aresvique.cz, arexvy.cz, au.gsk.com, be.gsk.com, br.gsk.com, brexafemme.com, brexafemmehcp.com, ca.gsk.com, casadevacinasgsk.com.br, chef.gskinternet.com, de.gsk.com, dontbeembarrassed.com, dv054.gskinternet.com, easygenerator.gsk.com, es.gsk.com, fr.gsk.com, glaxosmithkline.as, gsk.tech, india-pharma.gsk.com, it.gsk.com, jp.gsk.com, knowhepbtesting.com, kr.gsk.com, ldhub.gsk.com, myprepwisdom.com, netstorage-backup.gskinternet.com, netstorage-backup.gskstatic.com, nexus.gskinternet.com, nonprod-23dfd5.api-gateway.gskinternet.com, omjjara.cz, opar.cz, pact.gsk.com, parked.gskinternet.com, pk.gsk.com, pl.gsk.com, prod-34dned.api-gateway.gskinternet.com, pt.gsk.com, ru.gsk.com, spotlight.viiv.com, stiefelimagelibrary.com, tateemhayah.com, toctino.cz, togetherwithblenrephcp.com, tr.gsk.com, tw.gsk.com, us.gsk.com, us1dev.apps.gsk.com, vaccineportalen.dk, wiz-dev.gsk.com, wiz.gsk.com, www.apretudeonline.com, www.au.gsk.com, www.be.gsk.com, www.br.gsk.com, www.brexafemme.com, www.brexafemmehcp.com, www.ca.gsk.com, www.casadevacinasgsk.com.br, www.de.gsk.com, www.dontbeembarrassed.com, www.es.gsk.com, www.fr.gsk.com, www.glaxosmithkline.as, www.gsk.com, www.gsk.tech, www.india-pharma.gsk.com, www.it.gsk.com, www.jp.gsk.com, www.knowhepbtesting.com, www.kr.gsk.com, www.ldhub.gsk.com, www.ojjaara.cz, www.omjjara.cz, www.opar.cz, www.pact.gsk.com, www.pk.gsk.com, www.pl.gsk.com, www.pt.gsk.com, www.ru.gsk.com, www.spotlight.viiv.com, www.stiefelimagelibrary.com, www.taijouhoushin-yobou.jp, www.togetherwithblenrephcp.com, www.togetherwithjemperlihcp.com, www.tr.gsk.com, www.tw.gsk.com, www.us.gsk.com, www.us1dev.apps.gsk.com, www.wiz-dev.gsk.com, www.wiz.gsk.com, www.zejula.ca, www.zejula.com, www.zejulahcp.com, yourprepwisdom.com, zejula.com, zejulahcp.com. — HSTS enabled, CSP present, X-Frame-Options: sameorigin.

Links out to 12 external domains (from the crawled site, most recent pass): bsky.app, privacy.gsk.com, supplier.gsk.com, twitter.com, viivhealthcare.com, www.facebook.com, www.gsk.com, www.gskpro.com, www.gsk-studyregister.com, www.instagram.com, www.linkedin.com, www.youtube.com

HostnameSourceFirst seen
vision6comms.gsk.comcertificate_transparency2026-08-26
gsk.commanual2026-08-26
peer0.ptp-dev.gsk.comcertificate_transparency2026-08-26
www.peer0.ptp-dev.gsk.comcertificate_transparency2026-08-26
accounts-335631377811.gsk.comcertificate_transparency2026-08-26
app.finance.gsk.comcertificate_transparency2026-08-26
servicenowsand.gsk.comcertificate_transparency2026-08-25
accounts-496416208816.gsk.comcertificate_transparency2026-08-25
accounts-907798972962.gsk.comcertificate_transparency2026-08-25
accounts-994086305542.gsk.comcertificate_transparency2026-08-25
www.tpp-ver.gsk.comcertificate_transparency2026-08-25
tpp-ver.gsk.comcertificate_transparency2026-08-25
www.tpp-uat.gsk.comcertificate_transparency2026-08-25
tpp-uat.gsk.comcertificate_transparency2026-08-25
accounts-106006337760.gsk.comcertificate_transparency2026-08-25
tpp-eng.gsk.comcertificate_transparency2026-08-25
www.tpp-eng.gsk.comcertificate_transparency2026-08-25
tpp-ctl.gsk.comcertificate_transparency2026-08-25
www.tpp-ctl.gsk.comcertificate_transparency2026-08-25
www.tpp-dev.gsk.comcertificate_transparency2026-08-25
tpp-dev.gsk.comcertificate_transparency2026-08-25
accounts-655351875114.gsk.comcertificate_transparency2026-08-25
accounts-433596569467.gsk.comcertificate_transparency2026-08-25
accounts-803226583244.gsk.comcertificate_transparency2026-08-25
accounts-711830697424.gsk.comcertificate_transparency2026-08-25

Infrastructure

Hosted on: AS20940 AKAMAI-ASN1 - Akamai International B.V., NL (US)

Mail: mxa-001caa02.gslb.pphosted.com, mxb-001caa02.gslb.pphosted.com. SPF present. DMARC policy: reject. Nameservers: c1-160.akashield.net, c2-160.akashield.net.

Registered via SafeNames Ltd.. Registered 1998-08-07. Expires 2027-08-06.

Digital sovereignty

1/5 — categories confirmed not tied to a US-controlled company, out of DNS, registrar, TLS certificate, host and mail. Ultimate ownership, not the jurisdiction of the specific entity observed: a subsidiary like Google Ireland still counts as American. See the full cross-index comparison.

US DNS · OK Registrar · US TLS certificate · US Primary host · US Inbound mail

DNS: Akamai (Akashield). TLS certificate: Let's Encrypt (ISRG). Primary host: Akamai Technologies. Inbound mail: Proofpoint.

Vendor footprint

Third-party vendors identified from this company's own published DNS — apex TXT domain-verification tokens and SPF include: mechanisms. See the full vendor footprint comparison.

Adobe Airtable Amazon SES Anthropic Apple Business Manager Atlassian (Jira / Confluence) Box Cisco Webex Docker GlobalSign Google (Workspace / Search Console) Jamf Meta Business Microsoft 365 OneTrust Palo Alto Networks Proofpoint SAP SuccessFactors Smartsheet Twilio Wiz Workplace from Meta

Corporate record

Company number 03888792, Active, incorporated 1999-12-06. SIC: 70100 - Activities of head offices. Registered office: 79 NEW OXFORD STREET, LONDON, WC1A 1DG. Previously known as: GLAXOSMITHKLINE PLC. Last confirmation statement: 2026-07-30. Last accounts made up: 2025-12-31.

Persons with significant control (from the public register; month/year of birth only, matching Companies House's own disclosure limit):

Public engineering footprint

GSK-AI on GitHub — 10 public repositories, 91 stars total.