sm-a.co - robtex.com

sm-a.co

DNSSEC⚠️ Not signed
NSsdns26.ultradns.com ⭐
A2610:a1:1001::1a🇺🇸 MAINT-ID-120082610:a1:1001::/48 Neustar
PTRsdns26.ultradns.com
A156.154.140.26🇺🇸 MAINT-ID-12008156.154.140.0/24 Neustar
PTRsdns26.ultradns.com
NSsdns26.ultradns.biz
A2610:a1:1003::1a🇺🇸 MAINT-ID-120082610:a1:1003::/48 Neustar
PTRsdns26.ultradns.biz
A156.154.142.26🇺🇸 MAINT-ID-12008156.154.142.0/24 Neustar
PTRsdns26.ultradns.biz
NSsdns26.ultradns.net
A2610:a1:1002::1a🇺🇸 MAINT-ID-120082610:a1:1002::/48 Neustar
PTRsdns26.ultradns.net
A156.154.141.26🇺🇸 MAINT-ID-12008156.154.141.0/24 Neustar
PTRsdns26.ultradns.net
NSsdns26.ultradns.org
A2610:a1:1004::1a🇺🇸 MAINT-ID-120082610:a1:1004::/48 Neustar
PTRsdns26.ultradns.org
A156.154.143.26🇺🇸 MAINT-ID-12008156.154.143.0/24 Neustar
PTRsdns26.ultradns.org
SOAsdns26.ultradns.comtblackwell@tracfone.com 2014-09-17 #87

co

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.registrydns.co
NSb.registrydns.co
NSc.registrydns.co
NSd.registrydns.co
SOAns0.centralnic.nethostmaster@centralnic.net serial=1759658738

Same first word

sm-a.com
sm-a.co
sm-a.de
sm-a.net

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DNS History

4 records (4 active, 0 former)

NSsdns26.ultradns.bizsdns26.ultradns.comsdns26.ultradns.netsdns26.ultradns.org
●NSsdns26.ultradns.biz2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 18:52:08
● 2026-05-15 15:40:32
●NSsdns26.ultradns.com2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 18:52:08
● 2026-05-15 15:40:32
●NSsdns26.ultradns.net2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 18:52:08
● 2026-05-15 15:40:32
●NSsdns26.ultradns.org2026-05-13 → 2026-05-15 · 2 obs
● 2026-05-13 18:52:08
● 2026-05-15 15:40:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coc.registrydns.co, d.registrydns.co, a.registrydns.co, b.registrydns.co-
sm-a.cosdns26.ultradns.biz, sdns26.ultradns.com, sdns26.ultradns.net, sdns26.ultradns.org-

✅ Authoritative Response

Server:156.154.141.26

NS records: sdns26.ultradns.biz, sdns26.ultradns.com, sdns26.ultradns.net, sdns26.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sm-a.co (unsigned zone)

⏱️ Timing

Total: 1240ms | Queries: -

📄 Records

TypeCountSample Data
NS4sdns26.ultradns.biz, sdns26.ultradns.com...
SOA1sdns26.ultradns.com tblackwell.tracfone.

Analysis

Name Servers

sm-a.co is delegated to four name servers: sdns26.ultradns.biz, sdns26.ultradns.com, sdns26.ultradns.net and sdns26.ultradns.org.

sm-a.co at least partially shares name servers with other domains, for instance simplemobilesweepstakes.com, ntbyop.com, tracfonewirelessbyop.com, tfethics.com and smbyot.com.

these name servers are often used in conjunction with the name servers ns47.domaincontrol.com.

Host names with two IP numbers: sdns26.ultradns.biz points to 2610:a1:1003::1a and 156.154.142.26; sdns26.ultradns.com points to 2610:a1:1001::1a and 156.154.140.26; sdns26.ultradns.net points to 2610:a1:1002::1a and 156.154.141.26; sdns26.ultradns.org points to 2610:a1:1004::1a and 156.154.143.26.