`tcsfmail.org`

DNSSEC	⚠️ Not signed
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
MX	`mx1.improvmx.com` ⭐
		A	2a05:d012:412:e201:88aa:e7b9:7a43:12d7^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:f36:2c1f:1a49:d38a^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:373a:f51a:4a85:1d25^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.37.195.136^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-37-195-136.eu-west-3.compute.amazonaws.com`
		A	15.236.236.160^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-236-160.eu-west-3.compute.amazonaws.com`
		A	35.181.18.45^{🇫🇷 Amazon35.181.0.0/16 EC2 CDG prefix}
			PTR	`ec2-35-181-18-45.eu-west-3.compute.amazonaws.com`
MX	`mx2.improvmx.com`⁽²⁰⁾
		A	2a05:d012:412:e201:1f6e:f6e4:8fd7:4678^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e202:e81e:cc44:3b53:8a3d^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	2a05:d012:412:e203:7e33:3d9c:28d7:ee20^{🇫🇷 Amazon2a05:d012:400::/38 AMAZON AWS}
		A	13.36.107.63^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-107-63.eu-west-3.compute.amazonaws.com`
		A	13.36.222.39^{🇫🇷 Amazon13.36.0.0/14 EC2 CDG Prefix}
			PTR	`ec2-13-36-222-39.eu-west-3.compute.amazonaws.com`
		A	15.236.61.92^{🇫🇷 Amazon15.236.0.0/15 EC2 CDG prefix}
			PTR	`ec2-15-236-61-92.eu-west-3.compute.amazonaws.com`
TXT	`v=spf1 include:spf.improvmx.com ~all`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1782131467

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1784121124

Same first word

tcsfmail.org

Similar names

DNS History

12 records (4 active, 8 former)

●NSdns1.registrar-servers.com2026-07-12 → 2026-07-15 · 3 obs

○ 2017-09-04 00:52:46
● 2026-07-12 23:11:00
● 2026-07-15 13:42:48

●NSdns2.registrar-servers.com2026-07-12 → 2026-07-15 · 3 obs

○ 2017-09-04 00:52:46
● 2026-07-12 23:11:00
● 2026-07-15 13:42:48

○NSns07.domaincontrol.com2015-06-11 → 2017-09-04 · 4 obs

● 2015-06-11 10:38:42
● 2017-09-04 00:52:46
○ 2026-07-12 23:11:00
○ 2026-07-15 13:42:48

○NSns08.domaincontrol.com2015-06-11 → 2017-09-04 · 4 obs

● 2015-06-11 10:38:42
● 2017-09-04 00:52:46
○ 2026-07-12 23:11:00
○ 2026-07-15 13:42:48

○MXalt1.aspmx.l.google.com2015-06-11 → 2017-09-04 · 4 obs

● 2015-06-11 10:38:42
● 2017-09-04 00:52:46
○ 2026-07-12 23:11:00
○ 2026-07-15 13:42:48

○MXalt2.aspmx.l.google.com2015-06-11 → 2017-09-04 · 4 obs

● 2015-06-11 10:38:42
● 2017-09-04 00:52:46
○ 2026-07-12 23:11:00
○ 2026-07-15 13:42:48

○MXaspmx.l.google.com2015-06-11 → 2017-09-04 · 4 obs

● 2015-06-11 10:38:42
● 2017-09-04 00:52:46
○ 2026-07-12 23:11:00
○ 2026-07-15 13:42:48

○MXaspmx2.googlemail.com2015-06-11 → 2017-09-04 · 4 obs

● 2015-06-11 10:38:42
● 2017-09-04 00:52:46
○ 2026-07-12 23:11:00
○ 2026-07-15 13:42:48

○MXaspmx3.googlemail.com2015-06-11 → 2017-09-04 · 4 obs

● 2015-06-11 10:38:42
● 2017-09-04 00:52:46
○ 2026-07-12 23:11:00
○ 2026-07-15 13:42:48

●MXmx1.improvmx.com2026-07-12 → 2026-07-15 · 3 obs

○ 2017-09-04 00:52:46
● 2026-07-12 23:11:00
● 2026-07-15 13:42:48

●MXmx2.improvmx.com2026-07-12 → 2026-07-15 · 3 obs

○ 2017-09-04 00:52:46
● 2026-07-12 23:11:00
● 2026-07-15 13:42:48

○A50.63.202.612015-06-11 → 2017-09-04 · 4 obs

● 2015-06-11 10:38:42
● 2017-09-04 00:52:46
○ 2026-07-12 23:11:00
○ 2026-07-15 13:42:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
tcsfmail.org	dns1.registrar-servers.com, dns2.registrar-servers.com	-

✅ Authoritative Response

Server:156.154.132.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tcsfmail.org (unsigned zone)

⏱️ Timing

Total: 584ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
MX	2	`mx1.improvmx.com (pri: 10), mx2.improvmx.com (pri: 20)`
TXT	1	`v=spf1 include:spf.improvmx.com ~all`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

Analysis

Name Servers

Two name servers handle the delegation for tcsfmail.org: dns1.registrar-servers.com and dns2.registrar-servers.com.

tcsfmail.org uses the same name servers as several other domains — among them parsed.io, sirfishalot.com, hokiplaynow.com and two more.

At least some of tcsfmail.org's name servers are shared with other domains, for example selfloadingfreight.com, 10lw.com, codecolab.com and two more.

It is common for these name servers to be used in conjunction with the name servers dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

dns1.registrar-servers.com and dns2.registrar-servers.com both carry two IP addresses. The A records for dns1.registrar-servers.com are 156.154.132.200 and 2610:a1:1024::200; the A records for dns2.registrar-servers.com are 156.154.133.200 and 2610:a1:1025::200.

Mail Servers

Mail for tcsfmail.org is handled by two mail servers — mx1.improvmx.com and mx2.improvmx.com.

tcsfmail.org uses an identical mail server configuration to several other domains — among them superbes.com, goseller.com, brain-damage.co.uk and two more.

tcsfmail.org has at least partial mail server overlap with other domains such as sajdrill.com, cauceglia.com, theobr.com and two more.

Hostnames that resolve to 6 IP addresses:

mx1.improvmx.com resolves to 13.37.195.136, 15.236.236.160 and 35.181.18.45 among others, with 3 other IP addresses in total.

mx2.improvmx.com resolves to 13.36.107.63, 13.36.222.39 and 15.236.61.92 among others, with 3 other IP addresses in total.

tcsfmail.org - robtex.com

tcsfmail.org

org

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Name Servers

Mail Servers

`tcsfmail.org`

`org`