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
| Hostname | Source | First seen |
|---|---|---|
| www.relx.com | manual | 2026-08-26 |
| osdq-dev1.finance.relx.com | certificate_transparency | 2026-08-25 |
| verify.relx.com | certificate_transparency | 2026-08-25 |
| *.sdgresources.relx.com | certificate_transparency | 2026-08-25 |
| sdgresources.relx.com | certificate_transparency | 2026-08-24 |
| prod.oic.finance.relx.com | certificate_transparency | 2026-08-23 |
| qa.sdgresources.relx.com | certificate_transparency | 2026-08-22 |
| www.qa.sdgresources.relx.com | certificate_transparency | 2026-08-21 |
| www.sdgresources.relx.com | certificate_transparency | 2026-08-21 |
| uat.dodeca.finance.relx.com | certificate_transparency | 2026-08-17 |
| dodeca.finance.relx.com | certificate_transparency | 2026-08-17 |
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):
- No active PSC entries on the public register.
Public engineering footprint
No public GitHub organisation identified.