c-office.com - robtex.com
c-office.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1777152746 | ||||||
Subdomains
www.c-office.com |
Same first word
Similar names
DNS History
11 records (5 active, 6 former)
○NSa1.verisigndns.com2015-07-23 → 2016-12-31 · 4 obs
● 2016-12-31 04:24:00
○ 2026-03-01 07:08:00
○ 2026-04-25 21:41:38
○NSa2.verisigndns.com2015-07-23 → 2016-12-31 · 4 obs
● 2016-12-31 04:24:00
○ 2026-03-01 07:08:00
○ 2026-04-25 21:41:38
○NSa3.verisigndns.com2015-07-23 → 2016-12-31 · 4 obs
● 2016-12-31 04:24:00
○ 2026-03-01 07:08:00
○ 2026-04-25 21:41:38
●NSedns1.ultradns.biz2026-03-01 → 2026-04-25 · 3 obs
● 2026-03-01 07:08:00
● 2026-04-25 21:41:38
●NSedns1.ultradns.com2026-03-01 → 2026-04-25 · 3 obs
● 2026-03-01 07:08:00
● 2026-04-25 21:41:38
●NSedns1.ultradns.net2026-03-01 → 2026-04-25 · 3 obs
● 2026-03-01 07:08:00
● 2026-04-25 21:41:38
●NSedns1.ultradns.org2026-03-01 → 2026-04-25 · 3 obs
● 2026-03-01 07:08:00
● 2026-04-25 21:41:38
○NSu1.verisigndns.com2015-07-23 → 2016-12-31 · 4 obs
● 2016-12-31 04:24:00
○ 2026-03-01 07:08:00
○ 2026-04-25 21:41:38
○NSu2.verisigndns.com2015-07-23 → 2016-12-31 · 4 obs
● 2016-12-31 04:24:00
○ 2026-03-01 07:08:00
○ 2026-04-25 21:41:38
○NSu3.verisigndns.com2015-07-23 → 2016-12-31 · 4 obs
● 2016-12-31 04:24:00
○ 2026-03-01 07:08:00
○ 2026-04-25 21:41:38
●A134.37.5.302026-03-01 → 2026-04-25 · 2 obs
● 2026-04-25 21:41:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net... | - |
| c-office.com | edns1.ultradns.com, edns1.ultradns.net, edns1.ultradns.biz, edns1.ultradns.org | 2 records |
✅ Authoritative Response
Server:204.74.67.1
NS records: edns1.ultradns.com, edns1.ultradns.net, edns1.ultradns.biz, edns1.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for c-office.com (unsigned zone)
⏱️ Timing
Total: 588ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 134.37.5.30 |
| NS | 4 | edns1.ultradns.biz, edns1.ultradns.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | edns1.ultradns.com premiumdns.support.ne |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (edns1.ultradns.com, edns1.ultradns.com)
Analysis
Hierarchy
The parent of www.c-office.com is c-office.com.
IP Addresses
c-office.com points to a single IP number: 134.37.5.30.
Other host names, for instance www.c-office.com, share IP numbers with c-office.com.
Name Servers
c-office.com is delegated to four name servers: edns1.ultradns.biz, edns1.ultradns.com, edns1.ultradns.net and edns1.ultradns.org.
c-office.com shares name servers with other domains at least partially, for instance mers-servicerid-uat.org, humanaclinic.com, humanahelpskentucky.com, visitcenterwellrichmond.com and commercialconnect.wellsfargo.com.
these name servers are commonly used with the name servers dns1.p03.nsone.net, dns3.p03.nsone.net, dns4.p03.nsone.net, dns2.p03.nsone.net, ns89.ultradns2.com, ns89.ultradns2.org, ns0.isp.sky.com, ns1.isp.sky.com, ns8.ultradns2.com and ns8.ultradns2.org.
Host names with two IP numbers:
edns1.ultradns.biz resolves to 2610:a1:1015::201 and 204.74.67.1.
edns1.ultradns.com resolves to 2001:502:f3ff::201 and 204.74.66.1.
edns1.ultradns.net resolves to 2610:a1:1014::201 and 204.74.110.1.
edns1.ultradns.org resolves to 2001:502:4612::201 and 204.74.111.1.