`1stmailer.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:14cf^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:c268^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.20.207^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.194.104^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`margaret.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:266b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`margaret.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c26b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`margaret.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:226b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`margaret.ns.cloudflare.com`
		A	108.162.194.107^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`margaret.ns.cloudflare.com`
		A	162.159.38.107^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`margaret.ns.cloudflare.com`
		A	172.64.34.107^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`margaret.ns.cloudflare.com`
NS	`rommy.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c14^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rommy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c314^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rommy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2314^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rommy.ns.cloudflare.com`
		A	108.162.195.20^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rommy.ns.cloudflare.com`
		A	162.159.44.20^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rommy.ns.cloudflare.com`
		A	172.64.35.20^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rommy.ns.cloudflare.com`
MX	`mx1.1stmailer.com` ⭐
		A	158.247.217.160^{🇰🇷 AS-VULTR158.247.192.0/18 The Constant Company, LLC 319 CLEMATIS ST Suite 900}
			PTR	`mx1.1stmailer.com`
MX	`mx2.1stmailer.com`⁽²⁰⁾
		A	158.247.217.160^{🇰🇷 AS-VULTR158.247.192.0/18 The Constant Company, LLC 319 CLEMATIS ST Suite 900}
			PTR	`mx1.1stmailer.com`
TXT	`v=spf1 include:spf.1stmailer.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.20.207, 172.67.194.104
		IPv6 hints	2606:4700:3033::6815:14cf, 2606:4700:3034::ac43:c268
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=96, name=cloudflare-ech.com
SOA	`margaret.ns.cloudflare.com`dns@cloudflare.com serial=2409922552

`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=1784839252

DNS History

17 records (8 active, 9 former)

●NSmargaret.ns.cloudflare.com2026-07-23 → 2026-07-23 · 3 obs

○ 2017-06-13 01:20:40
● 2026-07-23 20:44:04
● 2026-07-23 20:44:06

○NSns-1038.awsdns-01.org2016-04-01 → 2016-09-19 · 5 obs

○ 2016-01-03 15:06:10
● 2016-04-01 10:37:48
● 2016-09-19 15:39:02
○ 2017-06-13 01:20:40
○ 2026-07-23 20:44:06

○NSns-2001.awsdns-58.co.uk2016-04-01 → 2016-09-19 · 5 obs

○ 2016-01-03 15:06:10
● 2016-04-01 10:37:48
● 2016-09-19 15:39:02
○ 2017-06-13 01:20:40
○ 2026-07-23 20:44:06

○NSns-379.awsdns-47.com2016-04-01 → 2016-09-19 · 5 obs

○ 2016-01-03 15:06:10
● 2016-04-01 10:37:48
● 2016-09-19 15:39:02
○ 2017-06-13 01:20:40
○ 2026-07-23 20:44:06

○NSns-661.awsdns-18.net2016-04-01 → 2016-09-19 · 5 obs

○ 2016-01-03 15:06:10
● 2016-04-01 10:37:48
● 2016-09-19 15:39:02
○ 2017-06-13 01:20:40
○ 2026-07-23 20:44:06

○NSns.1stmailer.com2017-06-13 → 2017-06-13 · 4 obs

○ 2016-09-19 15:39:02
● 2017-06-13 01:20:40
○ 2026-07-23 20:44:04
○ 2026-07-23 20:44:06

○NSns1.hosting.co.kr2015-08-09 → 2016-01-03 · 4 obs

● 2015-08-09 07:58:58
● 2016-01-03 15:06:10
○ 2016-04-01 10:37:48
○ 2026-07-23 20:44:06

○NSns2.hosting.co.kr2015-08-09 → 2016-01-03 · 4 obs

● 2015-08-09 07:58:58
● 2016-01-03 15:06:10
○ 2016-04-01 10:37:48
○ 2026-07-23 20:44:06

●NSrommy.ns.cloudflare.com2026-07-23 → 2026-07-23 · 3 obs

○ 2017-06-13 01:20:40
● 2026-07-23 20:44:04
● 2026-07-23 20:44:06

●MXmx1.1stmailer.com2026-07-23 → 2026-07-23 · 2 obs

● 2026-07-23 20:44:04
● 2026-07-23 20:44:06

●MXmx2.1stmailer.com2026-07-23 → 2026-07-23 · 2 obs

● 2026-07-23 20:44:04
● 2026-07-23 20:44:06

●A104.21.20.2072026-07-23 → 2026-07-23 · 3 obs

○ 2017-06-13 01:20:40
● 2026-07-23 20:44:04
● 2026-07-23 20:44:06

○A112.172.148.652017-06-13 → 2017-06-13 · 4 obs

○ 2016-04-01 10:37:48
● 2017-06-13 01:20:40
○ 2026-07-23 20:44:04
○ 2026-07-23 20:44:06

●A172.67.194.1042026-07-23 → 2026-07-23 · 3 obs

○ 2017-06-13 01:20:40
● 2026-07-23 20:44:04
● 2026-07-23 20:44:06

○A211.234.63.2322015-08-09 → 2016-01-03 · 4 obs

● 2015-08-09 07:58:58
● 2016-01-03 15:06:10
○ 2016-04-01 10:37:48
○ 2026-07-23 20:44:06

●A2606:4700:3033::6815:14cf2026-07-23 → 2026-07-23 · 3 obs

○ 2017-06-13 01:20:40
● 2026-07-23 20:44:04
● 2026-07-23 20:44:06

●A2606:4700:3034::ac43:c2682026-07-23 → 2026-07-23 · 3 obs

○ 2017-06-13 01:20:40
● 2026-07-23 20:44:04
● 2026-07-23 20:44:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
1stmailer.com	margaret.ns.cloudflare.com, rommy.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.20

NS records: margaret.ns.cloudflare.com, rommy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 1stmailer.com (unsigned zone)

⏱️ Timing

Total: 75ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.194.104, 104.21.20.207`
AAAA	2	`2606:4700:3033::6815:14cf, 2606:4700:3034::ac43:c268`
NS	2	`margaret.ns.cloudflare.com, rommy.ns.cloudflare.com`
MX	2	`mx1.1stmailer.com (pri: 10), mx2.1stmailer.com (pri: 20)`
TXT	1	`v=spf1 include:spf.1stmailer.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`margaret.ns.cloudflare.com dns.cloudflar`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

1stmailer.com directs to four IP numbers, which are 104.21.20.207, 172.67.194.104, 2606:4700:3033::6815:14cf and 2606:4700:3034::ac43:c268.

Additional host names — amaarta99.xyz, biquges123.com, igsbrasil.org.br and two others — share IP numbers with 1stmailer.com.

Name Servers

1stmailer.com is served by two delegated name servers, margaret.ns.cloudflare.com and rommy.ns.cloudflare.com.

1stmailer.com shares its name server setup with other domains, including forsalewichita.com, c-brats.com, novelfreedom.com and two others.

The name servers of 1stmailer.com overlap at least partially with those of other domains — among them sloger.info, francekarate2020.fr, wisadu.com and two more.

These name servers commonly appear in delegations together with nova.ns.cloudflare.com, sandra.ns.cloudflare.com, henry.ns.cloudflare.com and 3 other.

Host names with 6 IP numbers:

margaret.ns.cloudflare.com carries IP addresses 108.162.194.107, 162.159.38.107 and 172.64.34.107, with 3 other addresses beyond those.

rommy.ns.cloudflare.com carries IP addresses 108.162.195.20, 162.159.44.20 and 172.64.35.20, with 3 other addresses beyond those.

Mail Servers

1stmailer.com has two mail servers: mx1.1stmailer.com and mx2.1stmailer.com.

mx1.1stmailer.com and mx2.1stmailer.com share one IP address between them — 158.247.217.160.

These two host names — mx1.1stmailer.com and mx2.1stmailer.com — each point to 158.247.217.160 IP addresses.

1stmailer.com - robtex.com

1stmailer.com

com

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`1stmailer.com`

`com`