siebertnet.com - dns.ninja

`siebertnet.com`

DNSSEC	⚠️ Not signed
A	2606:4700:10::ac42:86f1^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:10::ac42:8954^{🇺🇸 Cloudflare2606:4700:10::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.134.241^{🇺🇸 Cloudflare172.66.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.66.137.84^{🇺🇸 Cloudflare172.66.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`marek.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marek.ns.cloudflare.com`
		A	108.162.193.202^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	172.64.33.202^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	173.245.59.202^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
NS	`rose.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a8d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rose.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rose.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rose.ns.cloudflare.com`
		A	108.162.192.141^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.32.141^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	173.245.58.141^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com` ⭐
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`0ed1fe018acb960c6cf161489e99f947`
TXT	`1jpnqdvukmac4tpgmt01tj9opc`
TXT	`google-site-verification=ZbpvVnxM8zULLnX9LNyXrk5Lo4kNI0t9N6vlq9l-gws`
TXT	`nitro-verification-code=LTQ3NTEzNTY3NTI1MTc2NDU0NDE=`
TXT	`v=spf1 ip4:69.193.200.118 ip4:67.131.135.0/26 ip4:216.82.241.0/24 ip4:65.79.1...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	172.66.134.241, 172.66.137.84
		IPv6 hints	2606:4700:10::ac42:86f1, 2606:4700:10::ac42:8954
SOA	`marek.ns.cloudflare.com`dns@cloudflare.com serial=2409046347

`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=1785213447

Subdomains

online.siebertnet.com

advisornxt.siebertnet.com

Same first word

siebertnet.net

siebertnet.com

Similar names

seibertnet.com

snitterbee.com

betterisne.net

DNS History

24 records (8 active, 16 former)

●NSmarek.ns.cloudflare.com2026-03-04 → 2026-07-28 · 3 obs

○ 2019-01-12 00:42:48
● 2026-03-04 01:42:06
● 2026-07-28 05:02:26

○NSns-1167.awsdns-17.org2016-06-21 → 2019-01-12 · 5 obs

○ 2016-05-10 17:32:14
● 2016-06-21 12:57:18
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

○NSns-1870.awsdns-41.co.uk2016-06-21 → 2019-01-12 · 5 obs

○ 2016-05-10 17:32:14
● 2016-06-21 12:57:18
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

○NSns-448.awsdns-56.com2016-06-21 → 2019-01-12 · 5 obs

○ 2016-05-10 17:32:14
● 2016-06-21 12:57:18
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

○NSns-840.awsdns-41.net2016-06-21 → 2019-01-12 · 5 obs

○ 2016-05-10 17:32:14
● 2016-06-21 12:57:18
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

○NSpdns82.ultradns.biz2015-08-18 → 2016-05-10 · 4 obs

● 2015-08-18 23:53:36
● 2016-05-10 17:32:14
○ 2016-06-21 12:57:18
○ 2026-07-28 05:02:26

○NSpdns82.ultradns.com2015-08-18 → 2016-05-10 · 4 obs

● 2015-08-18 23:53:36
● 2016-05-10 17:32:14
○ 2016-06-21 12:57:18
○ 2026-07-28 05:02:26

○NSpdns82.ultradns.net2015-08-18 → 2016-05-10 · 4 obs

● 2015-08-18 23:53:36
● 2016-05-10 17:32:14
○ 2016-06-21 12:57:18
○ 2026-07-28 05:02:26

○NSpdns82.ultradns.org2015-08-18 → 2016-05-10 · 4 obs

● 2015-08-18 23:53:36
● 2016-05-10 17:32:14
○ 2016-06-21 12:57:18
○ 2026-07-28 05:02:26

●NSrose.ns.cloudflare.com2026-03-04 → 2026-07-28 · 3 obs

○ 2019-01-12 00:42:48
● 2026-03-04 01:42:06
● 2026-07-28 05:02:26

○MXcluster9.us.messagelabs.com2015-08-18 → 2019-01-12 · 4 obs

● 2015-08-18 23:53:36
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

○MXcluster9a.us.messagelabs.com2015-08-18 → 2019-01-12 · 4 obs

● 2015-08-18 23:53:36
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

○MXnjexchange.siebertnet.com2015-08-18 → 2015-10-15 · 4 obs

● 2015-08-18 23:53:36
● 2015-10-15 03:19:10
○ 2015-10-21 01:28:46
○ 2026-07-28 05:02:26

○MXnyexchange.siebertnet.com2015-08-18 → 2019-01-12 · 4 obs

● 2015-08-18 23:53:36
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

○MXsiebertnet-com.mail.protection.outlook.com2018-06-26 → 2019-01-12 · 5 obs

○ 2015-10-21 01:28:46
● 2018-06-26 20:52:32
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

●MXus-smtp-inbound-1.mimecast.com2026-03-04 → 2026-07-28 · 3 obs

○ 2019-01-12 00:42:48
● 2026-03-04 01:42:06
● 2026-07-28 05:02:26

●MXus-smtp-inbound-2.mimecast.com2026-03-04 → 2026-07-28 · 3 obs

○ 2019-01-12 00:42:48
● 2026-03-04 01:42:06
● 2026-07-28 05:02:26

●A172.66.134.2412026-03-04 → 2026-07-28 · 3 obs

○ 2019-01-12 00:42:48
● 2026-03-04 01:42:06
● 2026-07-28 05:02:26

●A172.66.137.842026-03-04 → 2026-07-28 · 3 obs

○ 2019-01-12 00:42:48
● 2026-03-04 01:42:06
● 2026-07-28 05:02:26

●A2606:4700:10::ac42:86f12026-03-04 → 2026-07-28 · 3 obs

○ 2019-01-12 00:42:48
● 2026-03-04 01:42:06
● 2026-07-28 05:02:26

●A2606:4700:10::ac42:89542026-03-04 → 2026-07-28 · 3 obs

○ 2019-01-12 00:42:48
● 2026-03-04 01:42:06
● 2026-07-28 05:02:26

○A34.195.83.1722017-07-14 → 2017-09-17 · 5 obs

○ 2016-12-27 16:56:40
● 2017-07-14 08:23:32
● 2017-09-17 01:11:36
○ 2018-02-24 20:55:14
○ 2026-07-28 05:02:26

○A34.235.225.642018-02-24 → 2019-01-12 · 5 obs

○ 2017-09-17 01:11:36
● 2018-02-24 20:55:14
● 2019-01-12 00:42:48
○ 2026-03-04 01:42:06
○ 2026-07-28 05:02:26

○A38.105.181.1142015-08-18 → 2016-12-27 · 4 obs

● 2015-08-18 23:53:36
● 2016-12-27 16:56:40
○ 2017-07-14 08:23:32
○ 2026-07-28 05:02:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net...	-
siebertnet.com	rose.ns.cloudflare.com, marek.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.141

NS records: rose.ns.cloudflare.com, marek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for siebertnet.com (unsigned zone)

⏱️ Timing

Total: 164ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.66.137.84, 172.66.134.241`
AAAA	2	`2606:4700:10::ac42:8954, 2606:4700:10::ac42:86f1`
NS	2	`marek.ns.cloudflare.com, rose.ns.cloudflare.com`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	5	`0ed1fe018acb960c6cf161489e99f947, 1jpnqdvukmac4tpgmt01tj9opc...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`marek.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent domain of online.siebertnet.com and advisornxt.siebertnet.com is siebertnet.com.

IP Addresses

siebertnet.com has four IP addresses: 172.66.134.241, 172.66.137.84, 2606:4700:10::ac42:86f1 and 2606:4700:10::ac42:8954.

Additional host names — including online.siebertnet.com and advisornxt.siebertnet.com — share IP numbers with siebertnet.com.

Name Servers

The NS records for siebertnet.com delegate to marek.ns.cloudflare.com and rose.ns.cloudflare.com.

siebertnet.com has the same name server delegation as a number of other domains, such as mypwd.io, staylist.com, kajadjbfojuad.sbs and two more.

siebertnet.com has at least partial name server overlap with other domains, such as syairhk.uno, emas168.baby, dcwsjd.com and two others.

It is common to see these name servers used together with name servers steven.ns.cloudflare.com and anna.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

marek.ns.cloudflare.com maps to 108.162.193.202, 172.64.33.202, 173.245.59.202 and 3 additional IP addresses.

rose.ns.cloudflare.com maps to 108.162.192.141, 172.64.32.141, 173.245.58.141 and 3 additional IP addresses.

Mail Servers

The MX records for siebertnet.com point to two mail servers: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

siebertnet.com has the same mail server arrangement as a number of other domains, for example complegal.com, s7mail.com, trialgraphics.com and two more.

siebertnet.com has mail servers in common with other domains — for example greenvillehyundai.com and investorscommunitybank.com.

Host names resolving to 6 IP numbers:

us-smtp-inbound-1.mimecast.com maps to 170.10.128.141, 170.10.128.221, 170.10.128.242 and 3 additional IP addresses.

us-smtp-inbound-2.mimecast.com maps to 170.10.128.141, 170.10.128.221, 170.10.128.242 and 3 additional IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.141 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.221 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.128.242 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.141 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.221 IP addresses.

us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com each have 170.10.132.242 IP addresses.