smtlabs.com - dns.ninja

`smtlabs.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:2b9d^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:b52d^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.157^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.181.45^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`rodrigo.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c4e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rodrigo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c34e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rodrigo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:234e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rodrigo.ns.cloudflare.com`
		A	108.162.195.78^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rodrigo.ns.cloudflare.com`
		A	162.159.44.78^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rodrigo.ns.cloudflare.com`
		A	172.64.35.78^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rodrigo.ns.cloudflare.com`
NS	`wren.ns.cloudflare.com`
		A	2606:4700:50::a29f:268d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wren.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c28d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`wren.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:228d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`wren.ns.cloudflare.com`
		A	108.162.194.141^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wren.ns.cloudflare.com`
		A	162.159.38.141^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wren.ns.cloudflare.com`
		A	172.64.34.141^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`wren.ns.cloudflare.com`
MX	`smtlabs-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c802::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy4pr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr04cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr02cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:f90a::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn8pr03cu00201.inbound.protection.outlook.com`
		A	52.101.9.5^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mn2pr04cu00205.inbound.protection.outlook.com`
		A	52.101.41.3^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00103.inbound.protection.outlook.com`
		A	52.101.42.16^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr05cu00300.inbound.protection.outlook.com`
		A	52.101.50.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr02cu00502.inbound.protection.outlook.com`
MX	`mail1.namebrightmail.com`⁽¹⁰⁾
		A	66.35.35.26^{🇺🇸 IMDC66.35.35.0/24 Iron Mountain Data Center}
			PTR	`mail1.namebrightmail.com`
MX	`mail2.namebrightmail.com`⁽¹⁰⁾
		A	66.35.35.28^{🇺🇸 IMDC66.35.35.0/24 Iron Mountain Data Center}
			PTR	`mail2.namebrightmail.com`
TXT	`google-site-verification=YourUniqueGoogleVerificationCode`
TXT	`v=spf1 a:smtpout1.namebrightmail.com a:smtpout2.namebrightmail.com ip4:216.87...`
TXT	`v=spf1 ip4:209.104.224.64/29 ip4:71.11.0.32/29 include:spf.protection.outlook...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.157, 172.67.181.45
		IPv6 hints	2606:4700:3037::6815:2b9d, 2606:4700:3037::ac43:b52d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=137, name=cloudflare-ech.com
SOA	`rodrigo.ns.cloudflare.com`dns@cloudflare.com serial=2410056417

`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=1784980412

Previously MX for

smtlabs.com

Same first word

smtlabs.io

smtlabs.com

Similar names

tmslabs.com

mstlabs.com

stmlabs.com

msblast.com

bsmsalt.com

bsmsalt.de

sbmsalt.com

tsmlabs.com

DNS History

18 records (9 active, 9 former)

○NSns57.domaincontrol.com2015-07-14 → 2017-12-09 · 4 obs

● 2015-07-14 14:18:52
● 2017-12-09 04:12:54
○ 2026-03-25 17:21:48
○ 2026-07-25 12:17:42

○NSns58.domaincontrol.com2015-07-14 → 2017-12-09 · 4 obs

● 2015-07-14 14:18:52
● 2017-12-09 04:12:54
○ 2026-03-25 17:21:48
○ 2026-07-25 12:17:42

●NSrodrigo.ns.cloudflare.com2026-03-25 → 2026-07-25 · 3 obs

○ 2017-12-09 04:12:54
● 2026-03-25 17:21:48
● 2026-07-25 12:17:42

●NSwren.ns.cloudflare.com2026-03-25 → 2026-07-25 · 3 obs

○ 2017-12-09 04:12:54
● 2026-03-25 17:21:48
● 2026-07-25 12:17:42

●MXmail1.namebrightmail.com2026-07-23 → 2026-07-25 · 3 obs

○ 2026-03-25 17:21:48
● 2026-07-23 17:14:20
● 2026-07-25 12:17:42

●MXmail2.namebrightmail.com2026-07-23 → 2026-07-25 · 3 obs

○ 2026-03-25 17:21:48
● 2026-07-23 17:14:20
● 2026-07-25 12:17:42

●MXsmtlabs-com.mail.protection.outlook.com2026-03-25 → 2026-07-25 · 3 obs

○ 2017-12-09 04:12:54
● 2026-03-25 17:21:48
● 2026-07-25 12:17:42

○MXsmtlabs.com2015-07-14 → 2017-12-09 · 4 obs

● 2015-07-14 14:18:52
● 2017-12-09 04:12:54
○ 2026-03-25 17:21:48
○ 2026-07-25 12:17:42

●A104.21.43.1572026-03-25 → 2026-07-25 · 3 obs

○ 2017-12-09 04:12:54
● 2026-03-25 17:21:48
● 2026-07-25 12:17:42

○A172.64.80.12026-03-25 → 2026-07-25 · 2 obs

○ 2026-03-25 17:21:48
○ 2026-07-25 12:17:42

●A172.67.181.452026-03-25 → 2026-07-25 · 3 obs

○ 2017-12-09 04:12:54
● 2026-03-25 17:21:48
● 2026-07-25 12:17:42

○A199.189.197.1142016-02-10 → 2017-12-09 · 5 obs

○ 2015-11-15 19:02:18
● 2016-02-10 16:20:22
● 2017-12-09 04:12:54
○ 2026-03-25 17:21:48
○ 2026-07-25 12:17:42

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-25 → 2026-07-25 · 2 obs

○ 2026-03-25 17:21:48
○ 2026-07-25 12:17:42

○A2606:4700:3030::ac43:b52d2026-03-25 → 2026-03-25 · 4 obs

○ 2017-12-09 04:12:54
● 2026-03-25 17:21:48
○ 2026-07-03 12:47:42
○ 2026-07-25 12:17:42

○A2606:4700:3032::6815:2b9d2026-03-25 → 2026-03-25 · 4 obs

○ 2017-12-09 04:12:54
● 2026-03-25 17:21:48
○ 2026-07-03 12:47:42
○ 2026-07-25 12:17:42

●A2606:4700:3037::6815:2b9d2026-07-03 → 2026-07-25 · 3 obs

○ 2026-03-25 17:21:48
● 2026-07-03 12:47:42
● 2026-07-25 12:17:42

●A2606:4700:3037::ac43:b52d2026-07-03 → 2026-07-25 · 3 obs

○ 2026-03-25 17:21:48
● 2026-07-03 12:47:42
● 2026-07-25 12:17:42

○A50.192.171.1262015-07-14 → 2015-11-15 · 4 obs

● 2015-07-14 14:18:52
● 2015-11-15 19:02:18
○ 2016-02-10 16:20:22
○ 2026-07-25 12:17:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
smtlabs.com	wren.ns.cloudflare.com, rodrigo.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.78

NS records: wren.ns.cloudflare.com, rodrigo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smtlabs.com (unsigned zone)

⏱️ Timing

Total: 786ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.43.157, 172.67.181.45`
AAAA	2	`2606:4700:3037::6815:2b9d, 2606:4700:3037::ac43:b52d`
NS	2	`rodrigo.ns.cloudflare.com, wren.ns.cloudflare.com`
MX	3	`smtlabs-com.mail.protection.outlook.com , mail1.namebrightmail.com (pri: 10)...`
TXT	3	`google-site-verification=YourUniqueGoogl, v=spf1 a:smtpout1.namebrightmail.com a:s...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`rodrigo.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (wren.ns.cloudflare.com, wren.ns.cloudflare.com, wren.ns.cloudflare.com...)

Analysis

IP Addresses

smtlabs.com resolves to four IP addresses: 104.21.43.157, 172.67.181.45, 2606:4700:3037::6815:2b9d and 2606:4700:3037::ac43:b52d.

Among the host names that share IP numbers with smtlabs.com are smyrnaeyegroup.com, wwwbizblog.com, techlagos.com.br and two others.

Name Servers

DNS delegation for smtlabs.com points to two name servers: rodrigo.ns.cloudflare.com and wren.ns.cloudflare.com.

smtlabs.com has the same name server delegation as a number of other domains, such as ghazzo.ch, theultimatelaunch.com, rbt-amp-401.ru and two more.

smtlabs.com partially shares its NS delegation with several other domains, including doingdata.org, paopao666.com, intqs.net and two others.

These name servers regularly co-occur with the name servers monroe.ns.cloudflare.com, hazel.ns.cloudflare.com and duke.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

rodrigo.ns.cloudflare.com has IP addresses 108.162.195.78, 162.159.44.78 and 172.64.35.78, plus 3 other.

wren.ns.cloudflare.com has IP addresses 108.162.194.141, 162.159.38.141 and 172.64.34.141, plus 3 other.

Mail Servers

smtlabs.com uses three mail servers — mail1.namebrightmail.com, mail2.namebrightmail.com and smtlabs-com.mail.protection.outlook.com.

smtlabs.com shares at least some of its mail servers with other domains — for example pikeadmin.com, acrobon.com, seasontickets.net and two more.

Host names resolving to 8 IP numbers:

smtlabs-com.mail.protection.outlook.com has IP addresses 52.101.9.5, 52.101.41.3 and 52.101.42.16, plus 5 other.

Hosts that resolve to one IP address:

mail1.namebrightmail.com directs to 66.35.35.26.

mail2.namebrightmail.com directs to 66.35.35.28.