OSIC FTSE 100 & S&P 500 OSINT baseline

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RELX Technology & Communications

FTSE 100 constituent (REL)

Overview

RELX sits in the Technology & Communications sector. Its primary domain, relx.com, spans 11 subdomains, among them verify.relx.com and osdq-dev1.finance.relx.com. A crawl of www.relx.com fetched 200 pages, titled "RELX - Information-based analytics and decision tools," and recorded 39953 internal links and 93 external links, including careers.reedexhibitions.com and data.fca.org.uk. The TLS certificate is issued by GlobalSign nv-sa, with HSTS and a content security policy enabled; the site is served through Cloudflare, Inc. (AS13335), geolocated to Sweden. DNS lists relx-com.mail.protection.outlook.com as mail exchange host, SPF present, DMARC set to reject, and nameservers under the reedelsevier.com domain. The relx.com registration runs through MarkMonitor Inc., 2001-07-05 to 2027-07-05. Companies House records an active company, number 00077536, incorporated 1903-05-28, previously named Reed Elsevier PLC, with zero persons with significant control on file.

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

Web presence

Primary domain: relx.com. 11 subdomains observed via Certificate Transparency and direct crawl.

200 pages fetched from www.relx.com on 2026-08-27 — 39953 internal links observed, 166582696 bytes. Page title: “RELX - Information-based analytics and decision tools”

TLS issued by GlobalSign nv-sa, valid 2026-04-30 – 2026-11-15. Certificate also covers: reports.relx.com, stories.relx.com, www.stories.relx.com, www.reports.relx.com, relx.com. — HSTS enabled, CSP present, X-Frame-Options: SAMEORIGIN.

Links out to 93 external domains (from the crawled site, most recent pass), top 50 shown: 4re.referrals.selectminds.com, bestpracticeai.substack.com, brrmedia.news, careers.reedexhibitions.com, data.fca.org.uk, drinkwellsystems.com, elsevier.shorthandstories.com, fd.nl, files.investis.com, flashesandflames.com, folia.com.bd, forms.office.com, fortune.com, gadgillab.berkeley.edu, greenempowerment.org, hbr.org, https:, icis.shorthandstories.com, legaltechnology.com, lexisnexisrisk.shorthandstories.com, lexisnexis-risk-solutions.shorthandstories.com, lexisnexis.shorthandstories.com, mosan.ch, msabi.org, permalution.com, reedexpo.jobs, relx.wd3.myworkdayjobs.com, reports.relx.com, risk.lexisnexis.com, rxclusive.shorthandstories.com, rxglobal.com, saner.gy, sdgresources.relx.com, stories.relx.com, stream.brrmedia.co.uk, susan-design.org, tools.google.com, tv.nyse.com, twitter.com, uniquecontributions.buzzsprout.com, water.stanford.edu, waterwitness.org, webcasting.brrmedia.co.uk, wetlandswork.com, www.actionfraud.police.uk, www.aidfi.org, www.bloomberg.com, www.bluetap.co.uk, www.businessinsider.com, www.buzzsprout.com — and 43 more

HostnameSourceFirst seen
www.relx.commanual2026-08-26
osdq-dev1.finance.relx.comcertificate_transparency2026-08-25
verify.relx.comcertificate_transparency2026-08-25
*.sdgresources.relx.comcertificate_transparency2026-08-25
sdgresources.relx.comcertificate_transparency2026-08-24
prod.oic.finance.relx.comcertificate_transparency2026-08-23
qa.sdgresources.relx.comcertificate_transparency2026-08-22
www.qa.sdgresources.relx.comcertificate_transparency2026-08-21
www.sdgresources.relx.comcertificate_transparency2026-08-21
uat.dodeca.finance.relx.comcertificate_transparency2026-08-17
dodeca.finance.relx.comcertificate_transparency2026-08-17

Infrastructure

Hosted on: AS13335 CLOUDFLARENET - Cloudflare, Inc., US (SE)

Mail: relx-com.mail.protection.outlook.com. SPF present. DMARC policy: reject. Nameservers: ns1.reedelsevier.com, ns2.reedelsevier.com, ns3.reedelsevier.com.

Registered via MarkMonitor Inc.. Registered 2001-07-05. Expires 2027-07-05.

Digital sovereignty

2/5 — 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.

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

Registrar: MarkMonitor. Primary host: Cloudflare, Inc.. Inbound mail: Microsoft 365.

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 Anthropic Apple Business Manager Canva Cisco Cisco Webex Figma GlobalSign Google (Workspace / Search Console) Jamf Microsoft 365 Miro OneTrust Pendo Slack Smartsheet Wiz Yahoo

Corporate record

Company number 00077536, Active, incorporated 1903-05-28. SIC: 58110 - Book publishing, 58142 - Publishing of consumer and business journals and periodicals, 58190 - Other publishing activities, 58290 - Other software publishing. Registered office: 1-3 STRAND, LONDON, WC2N 5JR. Previously known as: REED ELSEVIER PLC. Last confirmation statement: 2026-06-17. 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

No public GitHub organisation identified.