Citigroup
S&P 500 constituent (C)
Web presence
Primary domain: citigroup.com.
119 subdomains observed via Certificate Transparency and direct crawl.
200 pages fetched from
www.citigroup.com on 2026-08-27
— 1725 internal links observed, 268022701 bytes.
Page title: “Citi | Global Investment Bank and Financial Services”
TLS issued by DigiCert Inc, valid 2026-08-03 – 2027-01-28. Certificate also covers: assessments.training.citigroup.com, careers.citigroup.com, citigroup.citi.bank.in, citigroupsoa.citigroup.com, legal.brazil.citibank.com, logintotalcomponline.citigroup.com, p2psuppliers.citi.com, procurementsourcing.citigroup.com, prod.suppliercobassessment.citi.com, suppliercobassessment.citi.com, thirdpartyassessment.citigroup.com, thirdpartyutility.citi.com, training.citigroup.com, www.citigroup.citi.bank.in, www.ew8.privatebank.citibank.com, www.ew8apac.privatebank.citibank.com, www.ew8emea.privatebank.citibank.com, www.suppliercobassessment.citi.com, www.totalcomponline.com. — HSTS enabled, CSP present.
Links out to 27 external domains (from the crawled site, most recent pass):
citicards.citi.com, citigold.citi.com, citigoldprivateclient.citi.com, ir.citi.com, news.aa.com, on.citi, opendatabot.ua, open.spotify.com, podcasts.apple.com, services.citi.com, treasury-management.com, twitter.com, video.citi.com, www.chathamhouse.org, www.citi.com, www.citifxpulse.com, www.citivelocity.com, www.computershare.com, www.facebook.com, www.getkard.com, www.gfanzero.com, www.linkedin.com, www.privatebank.citibank.com, www.risk.net, www.sec.gov, www.youtube.com, x.com
| Hostname | Source | First seen |
|---|---|---|
| smtpinboundlg-mx.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinbound-mw41.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinboundlg-r01.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinbound.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinbound-gt41.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinbound-ru41.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinboundlg-g01.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinboundlg-s01.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinbound-mx-p3.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpinboundlg.citigroup.com | certificate_transparency | 2026-08-25 |
| mail.citigroup.com | certificate_transparency | 2026-08-25 |
| smtpoutbound.citigroup.com | certificate_transparency | 2026-08-25 |
| uat1.directsalesautomation.citigroup.com | certificate_transparency | 2026-08-22 |
| uat1.citiplannerondevices.citigroup.com | certificate_transparency | 2026-08-22 |
| koreacitidirect.citigroup.com | certificate_transparency | 2026-08-20 |
| uat.securessoauthext2.citigroup.com | certificate_transparency | 2026-08-20 |
| uat.securessoauthext2.nam.citigroup.com | certificate_transparency | 2026-08-20 |
| www.blog.citigroup.com | certificate_transparency | 2026-08-20 |
| blog.citigroup.com | certificate_transparency | 2026-08-20 |
| totalcomp.uat.citigroup.com | certificate_transparency | 2026-08-20 |
| assessments.trainingstg.citigroup.com | certificate_transparency | 2026-08-20 |
| procurementsourcing.uat.citigroup.com | certificate_transparency | 2026-08-20 |
| trainingstg.citigroup.com | certificate_transparency | 2026-08-20 |
| uat.replyccr.transactionservices.citigroup.com | certificate_transparency | 2026-08-20 |
| contentdelivery.technologyservices.dev.citigroup.com | certificate_transparency | 2026-08-20 |
Infrastructure
Hosted on: AS20940 AKAMAI-ASN1 - Akamai International B.V., NL (US)
Mail: mx-a.mail.citi.com, mx-b.mail.citi.com. SPF present. DMARC policy: reject. Nameservers: ns1.nsroot1.com, ns2.nsroot2.com.
Registered via CSC Corporate Domains, Inc.. Registered 1998-04-06. Expires 2032-04-05.
Digital sovereignty
0/5 — 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.
? DNS · US Registrar · US TLS certificate · US Primary host · ? Inbound mail
Registrar: CSC Corporate Domains. TLS certificate: DigiCert, Inc.. Primary host: Akamai Technologies.
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.
Cisco Cisco Webex GlobalSign Google (Workspace / Search Console) Meta Business Microsoft 365 Palo Alto Networks Postman Proofpoint
Corporate record
No Companies House match on record — likely incorporated outside the UK.
Public engineering footprint
No public GitHub organisation identified.