rubbertreesystems.com - dns.ninja

`rubbertreesystems.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:471^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:8406^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.113^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.132.6^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`heidi.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26ec^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`heidi.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ec^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`heidi.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ec^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`heidi.ns.cloudflare.com`
		A	108.162.194.236^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`heidi.ns.cloudflare.com`
		A	162.159.38.236^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`heidi.ns.cloudflare.com`
		A	172.64.34.236^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`heidi.ns.cloudflare.com`
NS	`nolan.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c38^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nolan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c338^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nolan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2338^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nolan.ns.cloudflare.com`
		A	108.162.195.56^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nolan.ns.cloudflare.com`
		A	162.159.44.56^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nolan.ns.cloudflare.com`
		A	172.64.35.56^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nolan.ns.cloudflare.com`
MX	`_dc-mx.f014b280438a.rubbertreesystems.com` ⭐
		A	67.211.161.66^{🇺🇸 RoadRunner67.211.161.0/24}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	142.251.167.26^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽²⁰⁾
		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`⁽²⁰⁾
		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	`aspmx2.googlemail.com`⁽³⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`aspmx3.googlemail.com`⁽³⁰⁾
		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`
TXT	`google-site-verification=_EJ1z0O66pez5DP62fUZ5bmlLDAX9h1cqlxskjVlnM8`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.113, 172.67.132.6
		IPv6 hints	2606:4700:3037::6815:471, 2606:4700:3037::ac43:8406
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=146, name=cloudflare-ech.com
SOA	`heidi.ns.cloudflare.com`dns@cloudflare.com serial=2409194451

`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=1785598982

NS for

rubbertreesystems.com

Subdomains

mail.rubbertreesystems.com

Same first word

rubbertreesystems.com

rubbertreesystems.net

DNS History

22 records (12 active, 10 former)

○NSdns1.cisp.com2015-07-19 → 2026-06-03 · 5 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2026-06-03 05:59:38
○ 2026-08-01 15:57:04
○ 2026-08-01 15:57:06

○NSdns1.yocolo.com2008-03-15 → 2026-06-03 · 7 obs

● 2008-03-15 16:36:44
○ 2015-07-19 05:05:48
○ 2020-02-24 11:00:26
● 2026-02-17 19:03:52
● 2026-06-03 05:59:38
○ 2026-08-01 15:57:04
○ 2026-08-01 15:57:06

○NSdns2.cisp.com2015-07-19 → 2026-06-03 · 5 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2026-06-03 05:59:38
○ 2026-08-01 15:57:04
○ 2026-08-01 15:57:06

○NSdns2.yocolo.com2008-03-15 → 2026-06-03 · 7 obs

● 2008-03-15 16:36:44
○ 2015-07-19 05:05:48
○ 2020-02-24 11:00:26
● 2026-02-17 19:03:52
● 2026-06-03 05:59:38
○ 2026-08-01 15:57:04
○ 2026-08-01 15:57:06

●NSheidi.ns.cloudflare.com2026-08-01 → 2026-08-01 · 3 obs

○ 2026-06-03 05:59:38
● 2026-08-01 15:57:04
● 2026-08-01 15:57:06

●NSnolan.ns.cloudflare.com2026-08-01 → 2026-08-01 · 3 obs

○ 2026-06-03 05:59:38
● 2026-08-01 15:57:04
● 2026-08-01 15:57:06

○NSrubbertreesystems.com2015-07-19 → 2026-06-03 · 5 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2026-06-03 05:59:38
○ 2026-08-01 15:57:04
○ 2026-08-01 15:57:06

●MX_dc-mx.f014b280438a.rubbertreesystems.com2026-08-01 → 2026-08-01 · 3 obs

○ 2026-06-03 05:59:38
● 2026-08-01 15:57:04
● 2026-08-01 15:57:06

●MXalt1.aspmx.l.google.com2015-07-19 → 2026-08-01 · 3 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2026-08-01 15:57:06

●MXalt2.aspmx.l.google.com2015-07-19 → 2026-08-01 · 3 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2026-08-01 15:57:06

●MXaspmx.l.google.com2015-07-19 → 2026-08-01 · 3 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2026-08-01 15:57:06

●MXaspmx2.googlemail.com2015-07-19 → 2026-08-01 · 3 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2026-08-01 15:57:06

●MXaspmx3.googlemail.com2015-07-19 → 2026-08-01 · 3 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2026-08-01 15:57:06

○MXmail.rubbertreesystems.com2008-03-15 → 2026-06-03 · 4 obs

● 2008-03-15 16:36:44
● 2026-06-03 05:59:38
○ 2026-08-01 15:57:04
○ 2026-08-01 15:57:06

●A104.21.4.1132026-08-01 → 2026-08-01 · 3 obs

○ 2026-06-03 05:59:38
● 2026-08-01 15:57:04
● 2026-08-01 15:57:06

○A141.193.213.102026-02-17 → 2026-06-03 · 5 obs

○ 2020-02-24 11:00:26
● 2026-02-17 19:03:52
● 2026-06-03 05:59:38
○ 2026-08-01 15:57:04
○ 2026-08-01 15:57:06

○A141.193.213.112026-02-17 → 2026-06-03 · 5 obs

○ 2020-02-24 11:00:26
● 2026-02-17 19:03:52
● 2026-06-03 05:59:38
○ 2026-08-01 15:57:04
○ 2026-08-01 15:57:06

●A172.67.132.62026-08-01 → 2026-08-01 · 3 obs

○ 2026-06-03 05:59:38
● 2026-08-01 15:57:04
● 2026-08-01 15:57:06

●A2606:4700:3037::6815:4712026-08-01 → 2026-08-01 · 3 obs

○ 2026-06-03 05:59:38
● 2026-08-01 15:57:04
● 2026-08-01 15:57:06

●A2606:4700:3037::ac43:84062026-08-01 → 2026-08-01 · 3 obs

○ 2026-06-03 05:59:38
● 2026-08-01 15:57:04
● 2026-08-01 15:57:06

○A64.254.142.2032015-07-19 → 2020-02-24 · 5 obs

○ 2008-03-15 16:36:44
● 2015-07-19 05:05:48
● 2020-02-24 11:00:26
○ 2026-02-17 19:03:52
○ 2026-08-01 15:57:06

○A67.130.81.152008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 16:36:44
○ 2015-07-19 05:05:48
○ 2026-08-01 15:57:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
rubbertreesystems.com	heidi.ns.cloudflare.com, nolan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.56

NS records: heidi.ns.cloudflare.com, nolan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rubbertreesystems.com (unsigned zone)

⏱️ Timing

Total: 448ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.4.113, 172.67.132.6`
AAAA	2	`2606:4700:3037::6815:471, 2606:4700:3037::ac43:8406`
NS	2	`heidi.ns.cloudflare.com, nolan.ns.cloudflare.com`
MX	6	`aspmx.l.google.com (pri: 10), _dc-mx.f014b280438a.rubbertreesystems.co...`
TXT	1	`google-site-verification=_EJ1z0O66pez5DP`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`heidi.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

rubbertreesystems.com is a parent domain of mail.rubbertreesystems.com.

Name Server Role

rubbertreesystems.com has rubbertreesystems.com as one of its name servers, making it self-hosted for DNS delegation.

Together with rubbertreesystems.com, the hosts dns1.cisp.com, dns2.cisp.com and dns1.yocolo.com are frequently configured as name servers.

IP Addresses

rubbertreesystems.com has four IP addresses: 104.21.4.113, 172.67.132.6, 2606:4700:3037::6815:471 and 2606:4700:3037::ac43:8406.

Among the host names that share IP numbers with rubbertreesystems.com are shsctx.com, kkwin.poker, pawn.guru and two others.

Name Servers

The NS records for rubbertreesystems.com delegate to heidi.ns.cloudflare.com and nolan.ns.cloudflare.com.

rubbertreesystems.com has the same name server delegation as a number of other domains, such as jjmh.top, timesclick.com, jjmhw4.top and two more.

rubbertreesystems.com shares at least some of its name servers with other domains, including bigpoll.io, liblab.si, bjkangfu.com and two others.

These name servers are frequently paired with the name servers deb.ns.cloudflare.com, buck.ns.cloudflare.com and jaziel.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

heidi.ns.cloudflare.com maps to 108.162.194.236, 162.159.38.236, 172.64.34.236 and 3 additional IP addresses.

nolan.ns.cloudflare.com maps to 108.162.195.56, 162.159.44.56, 172.64.35.56 and 3 additional IP addresses.

Mail Servers

rubbertreesystems.com is handled by 6 mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and 3 other.

rubbertreesystems.com shares at least some of its mail servers with other domains — for example ns500731.ns500671.ns500742.ns500731.ns500705.ns500678.ns500671.ns500291.ns500666.ns500153.tenderladiesbz.com, ns500699.ns500734.ns500699.ns500693.ns500699.ns500734.ns500699.ns500693.ns500693.ns500588.ns500588.ns500699.ns500699.ns500699.ns500588.ns500632.ns500110.dtrkdll.com, ns500758.ns500758.ns500698.ns500698.ns500698.ns500735.ns500736.ns500735.ns500736.ns500698.ns500698.ns500708.ns500708.ns500686.ns500652.ns500576.trackreceptor.com and two more.

It is common to find these mail servers paired with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 more.

Hosts with two IP numbers each:

The A records for aspmx2.googlemail.com return 108.177.123.26 and 2800:3f0:4003:c0f::1a.

The A records for aspmx3.googlemail.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.

The A records for aspmx.l.google.com return 142.251.167.26 and 2607:f8b0:4004:c19::1b.

The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1b.

The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1b.

Hosts that resolve to one IP address:

_dc-mx.f014b280438a.rubbertreesystems.com resolves to the IP address 67.211.161.66.

aspmx3.googlemail.com and alt2.aspmx.l.google.com each have 2a00:1450:400b:c02::1b IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com each have 172.253.116.26 IP addresses.