`otree.tech`

DNSSEC	⚠️ Not signed
A	185.208.164.126^{🇵🇱 CF-GDA185.208.164.0/24}
		PTR	`s26.cyber-folks.pl`
NS	`ns1.cyberfolks.pl` ⭐ ⚠️ Not in parent delegation
		A	94.152.254.111^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns1.cyberfolks.pl`
NS	`ns1.hekko.net.pl` ⚠️ Not in zone NS records
		A	94.152.255.102^{🇵🇱 OXYLION-AS94.152.255.0/24}
			PTR	`ns1.hekko.net.pl`
NS	`ns2.cyberfolks.pl` ⚠️ Not in parent delegation
		A	94.152.255.111^{🇵🇱 OXYLION-AS94.152.255.0/24}
			PTR	`ns2.cyberfolks.pl`
NS	`ns2.hekko.net.pl` ⚠️ Not in zone NS records
		A	94.152.254.102^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns2.hekko.net.pl`
NS	`ns3.cyberfolks.pl` ⚠️ Not in parent delegation
		A	94.152.254.161^{🇵🇱 OXYLION-AS94.152.254.0/24}
			PTR	`ns3.cyberfolks.pl`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	172.253.63.26^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽¹⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽²⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽²⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=5vkKHamvZ5H6iHG6WRJQjzfF5lTnptkSlFpSn6zeIjg`
TXT	`v=spf1 include:_spf.mlsend.com ip4:185.208.164.126 include:_spf.google.com ~all`
TXT	`google-site-verification=ES_beUUhq-4d31XzXuD4ryN8VKL1b0QSWnoV6BvOQR0`
SOA	`ns1.cyberfolks.pl`hostmaster@otree.tech 2024-12-12 #4

`tech`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns01.trs-dns.com` ⭐
	NS	`ns.trs-dns.com`
	NS	`ns01.trs-dns.net`
	NS	`ns10.trs-dns.info`
	NS	`ns10.trs-dns.org`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1783696738

Same first word

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otree.cn

otree.in

otree.co.uk

otree.biz

otree.ws

otree.com

otree.readthedocs.io

otree.net

otree.tech

otree.com.cn

otree.pro

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DNS History

13 records (11 active, 2 former)

●NSns1.cyberfolks.pl2026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

●NSns1.hekko.net.pl2018-05-12 → 2026-07-10 · 2 obs

● 2018-05-12 00:43:20
● 2026-07-10 16:00:54

●NSns2.cyberfolks.pl2026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

●NSns2.hekko.net.pl2018-05-12 → 2026-07-10 · 2 obs

● 2018-05-12 00:43:20
● 2026-07-10 16:00:54

●NSns3.cyberfolks.pl2026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

●MXalt1.aspmx.l.google.com2026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

●MXalt2.aspmx.l.google.com2026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

●MXalt3.aspmx.l.google.com2026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

●MXalt4.aspmx.l.google.com2026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

●MXaspmx.l.google.com2026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

○MXmail.otree.tech2018-05-12 → 2018-05-12 · 3 obs

● 2018-05-12 00:43:20
○ 2026-06-12 07:31:08
○ 2026-07-10 16:00:54

○A185.204.218.2302018-05-12 → 2018-05-12 · 3 obs

● 2018-05-12 00:43:20
○ 2026-06-12 07:31:08
○ 2026-07-10 16:00:54

●A185.208.164.1262026-06-12 → 2026-07-10 · 3 obs

○ 2018-05-12 00:43:20
● 2026-06-12 07:31:08
● 2026-07-10 16:00:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tech	ns01.trs-dns.com, ns10.trs-dns.org, ns10.trs-dns.info, ns01.trs-dns.net	-
otree.tech	ns1.hekko.net.pl, ns2.hekko.net.pl	-

✅ Authoritative Response

Server:94.152.254.102

NS records: ns1.hekko.net.pl, ns2.hekko.net.pl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for otree.tech (unsigned zone)

⏱️ Timing

Total: 685ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.208.164.126`
NS	3	`ns2.cyberfolks.pl, ns1.cyberfolks.pl...`
MX	5	`ALT3.ASPMX.L.GOOGLE.COM (pri: 20), ALT4.ASPMX.L.GOOGLE.COM (pri: 20)...`
TXT	3	`google-site-verification=5vkKHamvZ5H6iHG, v=spf1 include:_spf.mlsend.com ip4:185.2...`
SOA	1	`ns1.cyberfolks.pl hostmaster.otree.tech`

Analysis

IP Addresses

otree.tech has exactly one IP address — 185.208.164.126.

willa3d.pl, mail.blozu.com, dobredrzwiokna.pl plus two other host names have IP numbers in common with otree.tech.

Name Servers

Five name servers handle delegation for otree.tech: ns1.cyberfolks.pl, ns2.cyberfolks.pl, ns3.cyberfolks.pl and two others.

otree.tech has at least partial name server overlap with other domains, such as infosfera.pl, b-bis.pl, delikatnepierscionki.pl and two others.

ns2.hekko.net.pl, ns1.hekko.net.pl and dns1.linuxpl.com — plus 6 other name servers — are commonly paired with these name servers.

Host names resolving to a single IP address:

ns1.cyberfolks.pl has the IP address 94.152.254.111.

ns2.cyberfolks.pl has the IP address 94.152.255.111.

ns3.cyberfolks.pl has the IP address 94.152.254.161.

ns1.hekko.net.pl has the IP address 94.152.255.102.

ns2.hekko.net.pl has the IP address 94.152.254.102.

Mail Servers

otree.tech is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by otree.tech are shared with other domains: ns500731.ns500671.ns500754.ns500742.ns500671.ns500731.ns500731.ns500705.ns500705.ns500705.ns500688.ns500671.ns500649.ns500678.ns500291.ns500131.lustychickser.com, ns500759.ns500759.ns500759.ns500759.ns500698.ns500698.ns500736.ns500698.ns500698.ns500708.ns500698.ns500698.ns500619.ns500619.ns500619.trackreceptor.com, ns500754.ns500754.ns500742.ns500671.ns500754.ns500704.ns500742.ns500688.ns500704.ns500688.ns500649.ns500666.ns500131.lustychickser.com and two others among them.

It is common to find these mail servers paired with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com and aspmx2.googlemail.com, as well as two others.

Host names pointing to two IP addresses:

aspmx.l.google.com directs traffic to 172.253.63.26 and 2607:f8b0:4004:c1b::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1b.

alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1a.