`smtp.gearstream.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:adef^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:1ed5^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.30.213^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.173.239^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.30.213, 172.67.173.239
		IPv6 hints	2606:4700:3030::ac43:adef, 2606:4700:3035::6815:1ed5
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=163, name=cloudflare-ech.com

`gearstream.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:adef^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:1ed5^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.30.213^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.173.239^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`conrad.ns.cloudflare.com` ⭐
NS	`grannbo.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
TXT	`v=spf1 ip4:66.198.240.31 a mx include:spf.mandrillapp.com include:_spf.google...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.30.213, 172.67.173.239
		IPv6 hints	2606:4700:3030::ac43:adef, 2606:4700:3035::6815:1ed5
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=230, name=cloudflare-ech.com
SOA	`conrad.ns.cloudflare.com`dns@cloudflare.com serial=2402013612

Previously MX for

sb1-gearstream.com

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smtp.edu.ee

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smtp.fi.cloudplatform.fi

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sptm.com.my

psmt.edu

tspm.com.tw

tpms.od.ua

stmp.sk

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ptms.com

DNS History

10 records (4 active, 6 former)

●A104.21.30.2132026-03-31 → 2026-05-15 · 3 obs

○ 2017-02-03 07:58:34
● 2026-03-31 16:34:44
● 2026-05-15 05:06:28

○A172.64.80.12026-03-31 → 2026-05-15 · 2 obs

○ 2026-03-31 16:34:44
○ 2026-05-15 05:06:28

●A172.67.173.2392026-03-31 → 2026-05-15 · 3 obs

○ 2017-02-03 07:58:34
● 2026-03-31 16:34:44
● 2026-05-15 05:06:28

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-31 → 2026-05-15 · 2 obs

○ 2026-03-31 16:34:44
○ 2026-05-15 05:06:28

●A2606:4700:3030::ac43:adef2026-03-31 → 2026-05-15 · 3 obs

○ 2017-02-03 07:58:34
● 2026-03-31 16:34:44
● 2026-05-15 05:06:28

●A2606:4700:3035::6815:1ed52026-03-31 → 2026-05-15 · 3 obs

○ 2017-02-03 07:58:34
● 2026-03-31 16:34:44
● 2026-05-15 05:06:28

○A68.178.213.2032017-02-03 → 2017-02-03 · 3 obs

● 2017-02-03 07:58:34
○ 2026-03-31 16:34:44
○ 2026-05-15 05:06:28

○A68.178.213.372017-02-03 → 2017-02-03 · 3 obs

● 2017-02-03 07:58:34
○ 2026-03-31 16:34:44
○ 2026-05-15 05:06:28

○A72.167.238.292017-02-03 → 2017-02-03 · 3 obs

● 2017-02-03 07:58:34
○ 2026-03-31 16:34:44
○ 2026-05-15 05:06:28

○CNAMEsmtp.secureserver.net2017-02-03 → 2017-02-03 · 3 obs

● 2017-02-03 07:58:34
○ 2026-03-31 16:34:44
○ 2026-05-15 05:06:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, j.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net...	-
gearstream.com	grannbo.ns.cloudflare.com, conrad.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.150

NS records: grannbo.ns.cloudflare.com, conrad.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gearstream.com (unsigned zone)

⏱️ Timing

Total: 331ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.173.239, 104.21.30.213`
AAAA	2	`2606:4700:3030::ac43:adef, 2606:4700:3035::6815:1ed5`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

smtp.gearstream.com points to four IP numbers: 2606:4700:3030::ac43:adef, 2606:4700:3035::6815:1ed5, 104.21.30.213 and 172.67.173.239.

Other host names, for instance mandategame.com, go-indian.net, exchange.medlabdx.com, wangtao.name.cdn.cloudflare.net and craftum.pl share IP numbers with smtp.gearstream.com.

smtp.gearstream.com - robtex.com