underflow.org - dns.ninja

`underflow.org`

DNSSEC	⚠️ Not signed
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`in1-smtp.messagingengine.com` ⭐
		A	103.168.172.216^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-01.messagingengine.com`
		A	103.168.172.217^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-02.messagingengine.com`
		A	103.168.172.218^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-03.messagingengine.com`
		A	103.168.172.219^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-04.messagingengine.com`
		A	103.168.172.220^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-05.messagingengine.com`
		A	103.168.172.221^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-06.messagingengine.com`
		A	103.168.172.222^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-07.messagingengine.com`
		A	103.168.172.223^{🇺🇸 TELX-AS151847103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-08.messagingengine.com`
MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
		A	202.12.124.216^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-01.messagingengine.com`
		A	202.12.124.217^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-02.messagingengine.com`
		A	202.12.124.218^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-03.messagingengine.com`
		A	202.12.124.219^{TELX-AS151847202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-04.messagingengine.com`
TXT	`v=spf1 include:spf.messagingengine.com -all`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2410921075

`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=1786228044

Same first word

underflow.hr

underflow.org

underflow.ru

underflow.de

underflow.co

underflow.ir

underflow.eu

underflow.fr

underflow.ca

underflow.se

underflow.io

underflow.com

underflow.net

underflow.gr

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flowunder.com

DNS History

13 records (6 active, 7 former)

●NScuritiba.ns.porkbun.com2026-03-14 → 2026-08-08 · 3 obs

○ 2020-02-08 01:23:10
● 2026-03-14 18:07:34
● 2026-08-08 22:39:50

○NSdns1.name-services.com2015-08-06 → 2020-02-08 · 4 obs

● 2015-08-06 02:35:12
● 2020-02-08 01:23:10
○ 2026-03-14 18:07:34
○ 2026-08-08 22:39:50

○NSdns2.name-services.com2015-08-06 → 2020-02-08 · 4 obs

● 2015-08-06 02:35:12
● 2020-02-08 01:23:10
○ 2026-03-14 18:07:34
○ 2026-08-08 22:39:50

○NSdns3.name-services.com2015-08-06 → 2020-02-08 · 4 obs

● 2015-08-06 02:35:12
● 2020-02-08 01:23:10
○ 2026-03-14 18:07:34
○ 2026-08-08 22:39:50

○NSdns4.name-services.com2015-08-06 → 2020-02-08 · 4 obs

● 2015-08-06 02:35:12
● 2020-02-08 01:23:10
○ 2026-03-14 18:07:34
○ 2026-08-08 22:39:50

○NSdns5.name-services.com2015-08-06 → 2020-02-08 · 4 obs

● 2015-08-06 02:35:12
● 2020-02-08 01:23:10
○ 2026-03-14 18:07:34
○ 2026-08-08 22:39:50

●NSfortaleza.ns.porkbun.com2026-03-14 → 2026-08-08 · 3 obs

○ 2020-02-08 01:23:10
● 2026-03-14 18:07:34
● 2026-08-08 22:39:50

●NSmaceio.ns.porkbun.com2026-03-14 → 2026-08-08 · 3 obs

○ 2020-02-08 01:23:10
● 2026-03-14 18:07:34
● 2026-08-08 22:39:50

●NSsalvador.ns.porkbun.com2026-03-14 → 2026-08-08 · 3 obs

○ 2020-02-08 01:23:10
● 2026-03-14 18:07:34
● 2026-08-08 22:39:50

●MXin1-smtp.messagingengine.com2015-12-09 → 2026-08-08 · 3 obs

○ 2015-08-06 02:35:12
● 2015-12-09 03:52:58
● 2026-08-08 22:39:50

●MXin2-smtp.messagingengine.com2015-12-09 → 2026-08-08 · 3 obs

○ 2015-08-06 02:35:12
● 2015-12-09 03:52:58
● 2026-08-08 22:39:50

○MXmail.underflow.org2015-08-06 → 2015-08-06 · 3 obs

● 2015-08-06 02:35:12
○ 2015-12-09 03:52:58
○ 2026-08-08 22:39:50

○A222.158.189.2322015-08-06 → 2015-08-06 · 3 obs

● 2015-08-06 02:35:12
○ 2015-12-09 03:52:58
○ 2026-08-08 22:39:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
underflow.org	salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com, curitiba.ns.porkbun.com	-

✅ Authoritative Response

Server:162.159.11.180

NS records: salvador.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com, curitiba.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for underflow.org (unsigned zone)

⏱️ Timing

Total: 505ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
MX	2	`in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)`
TXT	1	`v=spf1 include:spf.messagingengine.com -`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

Analysis

Name Servers

underflow.org has four authoritative name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

underflow.org shares at least some of its name servers with other domains, including egady.com, ggrouprealty.com, digigyan.com and two others.

The host names curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com each resolve to two IP addresses: curitiba.ns.porkbun.com resolves to 173.245.58.37 and 2400:cb00:2049:1::adf5:3a25; fortaleza.ns.porkbun.com resolves to 162.159.8.140 and 2400:cb00:2049:1::a29f:88c; maceio.ns.porkbun.com resolves to 162.159.11.180 and 2400:cb00:2049:1::a29f:bb4; salvador.ns.porkbun.com resolves to 162.159.10.150 and 2400:cb00:2049:1::a29f:a96.

Mail Servers

underflow.org has two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

underflow.org shares the same mail server setup as other domains, including swunky.com, ingomuller.net, walker.email and two others.

underflow.org shares at least some of its mail servers with other domains, such as frog.qma.com.au and mbiederman.com.

Host names with 8 IP numbers:

in1-smtp.messagingengine.com resolves to 103.168.172.216, 103.168.172.217, 103.168.172.218 and 5 other IP addresses.

Host names resolving to four IP addresses:

in2-smtp.messagingengine.com points to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.