`sms-labs.com`

DNSSEC	⚠️ Not signed
NS	`ns1.dnsowl.com` ⭐
		A	2400:cb00:2049:1::a29f:1a88^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	2400:cb00:2049:1::a29f:1bad^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.26.136^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.27.173^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.dnsowl.com`
		A	2400:cb00:2049:1::a29f:1a31^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	2400:cb00:2049:1::a29f:1b82^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.26.49^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.27.130^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns3.dnsowl.com`
		A	2400:cb00:2049:1::a29f:1aea^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	2400:cb00:2049:1::a29f:1b62^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.26.234^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.27.98^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mx4.emailowl.com` ⭐
		A	207.246.121.203^{🇺🇸 AS-VULTR207.246.120.0/21 Vultr Assigned Prefix}
			PTR	`mx4.emailowl.com`
MX	`mx5.emailowl.com` ⭐
		A	45.63.17.188^{🇺🇸 AS-VULTR45.63.16.0/21 Vultr Assigned Prefix}
			PTR	`mx5.emailowl.com`
MX	`mx6.emailowl.com` ⭐
		A	107.191.41.169^{🇺🇸 AS-VULTR107.191.40.0/22 Vultr Assigned Prefix}
			PTR	`mx6.emailowl.com`
TXT	`v=spf1 a mx -all`
SOA	`ns1.dnsowl.com`hostmaster@dnsowl.com serial=1774542748

`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.net`nstld@verisign-grs.com serial=1774542387

Same first word

sms-labs.com

DNS History

11 records (6 active, 5 former)

○NSbuy.internettraffic.com2015-12-22 → 2015-12-22 · 4 obs

○ 2015-10-06 14:26:22
● 2015-12-22 10:55:02
○ 2016-03-24 18:11:20
○ 2026-03-26 16:38:06

●NSns1.dnsowl.com2026-03-22 → 2026-03-26 · 3 obs

○ 2016-03-24 18:11:20
● 2026-03-22 13:57:26
● 2026-03-26 16:38:06

○NSns1.sms-labs.com2009-07-04 → 2009-07-04 · 3 obs

● 2009-07-04 08:36:16
○ 2015-10-06 14:26:22
○ 2026-03-26 16:38:06

●NSns2.dnsowl.com2026-03-22 → 2026-03-26 · 3 obs

○ 2016-03-24 18:11:20
● 2026-03-22 13:57:26
● 2026-03-26 16:38:06

○NSns2.sms-labs.com2009-07-04 → 2009-07-04 · 3 obs

● 2009-07-04 08:36:16
○ 2015-10-06 14:26:22
○ 2026-03-26 16:38:06

●NSns3.dnsowl.com2026-03-22 → 2026-03-26 · 3 obs

○ 2016-03-24 18:11:20
● 2026-03-22 13:57:26
● 2026-03-26 16:38:06

○NSsell.internettraffic.com2015-12-22 → 2015-12-22 · 4 obs

○ 2015-10-06 14:26:22
● 2015-12-22 10:55:02
○ 2016-03-24 18:11:20
○ 2026-03-26 16:38:06

●MXmx4.emailowl.com2026-03-22 → 2026-03-26 · 2 obs

● 2026-03-22 13:57:26
● 2026-03-26 16:38:06

●MXmx5.emailowl.com2026-03-22 → 2026-03-26 · 2 obs

● 2026-03-22 13:57:26
● 2026-03-26 16:38:06

●MXmx6.emailowl.com2026-03-22 → 2026-03-26 · 2 obs

● 2026-03-22 13:57:26
● 2026-03-26 16:38:06

○A69.172.201.2082015-12-22 → 2015-12-22 · 3 obs

● 2015-12-22 10:55:02
○ 2016-03-24 18:11:20
○ 2026-03-26 16:38:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...	-
sms-labs.com	ns1.dnsowl.com, ns2.dnsowl.com, ns3.dnsowl.com	12 records

✅ Authoritative Response

Server:162.159.26.234

NS records: ns1.dnsowl.com, ns2.dnsowl.com, ns3.dnsowl.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sms-labs.com (unsigned zone)

⏱️ Timing

Total: 306ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`ns1.dnsowl.com, ns2.dnsowl.com...`
MX	3	`mx4.emailowl.com (pri: 10), mx5.emailowl.com (pri: 10)...`
TXT	1	`v=spf1 a mx -all`
SOA	1	`ns1.dnsowl.com hostmaster.dnsowl.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns1.dnsowl.com, ns1.dnsowl.com, ns1.dnsowl.com...)

Analysis

Name Servers

The delegation for sms-labs.com is handled by three name servers: ns1.dnsowl.com, ns2.dnsowl.com and ns3.dnsowl.com.

sms-labs.com at least partially shares name servers with other domains, for instance betsbuy.com, envy17.com, fsgy.com, cryptue.com and choosyparents.com.