citigroup.co - robtex.com
citigroup.co
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.nsroot1.com ⚠️ Not in zone NS records | ||||||
| A | 156.154.64.172🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns172.ultradns.com | ||||||
| NS | ns2.nsroot2.com ⚠️ Not in zone NS records | ||||||
| A | 193.108.91.190🇳🇱 Akamai193.108.91.0/24 Technologies | ||||||
| PTR | a1-190.akam.net | ||||||
| PTR | ns1-190.akam.net | ||||||
co
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.registrydns.co | ||||||
| NS | b.registrydns.co | ||||||
| NS | c.registrydns.co | ||||||
| NS | d.registrydns.co | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1759615358 | ||||||
Same first word
Similar names
citigorup.com |
icitgroup.com |
iticgroup.com |
ticigroup.com |
iitcgroup.com |
tciigroup.com |
ictigroup.com |
groupciti.com |
grupoitic.com |
citigruop.com |
DNS History
2 records (2 active, 0 former)
●NSns1.nsroot1.com2026-03-08 → 2026-03-22 · 2 obs
● 2026-03-22 15:59:50
●NSns2.nsroot2.com2026-03-08 → 2026-03-22 · 2 obs
● 2026-03-22 15:59:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| co | a.registrydns.co, b.registrydns.co, c.registrydns.co, d.registrydns.co | - |
| citigroup.co | ns1.nsroot1.com, ns2.nsroot2.com | - |
✅ Authoritative Response
Server: 156.154.64.172
NS records: ns1.nsroot1.com, ns2.nsroot2.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for citigroup.co (unsigned zone)
⏱️ Timing
Total: 280ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
citigroup.co is delegated to two name servers: ns1.nsroot1.com and ns2.nsroot2.com.
citigroup.co uses the same name server setup as other domains, including citi.fi, citifirst.be, travelerewards.com, citibank.no and citiprofessionalmastercard.com.
At least part of the name servers for citigroup.co are shared with other domains, for instance citibank.dk, citigold.co.uk, citibank.com.hk, citibank.hu and citigroupai.com.
These name servers are often used together with ns.citicorp.com, ns2.citicorp.com and ns5.citicorp.com.
Hostnames with a single IP
ns1.nsroot1.com resolves to: 156.154.64.172.
ns2.nsroot2.com resolves to: 193.108.91.190.