`mail.containertobuild.com`

DNSSEC

⚠️ Not signed

`containertobuild.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:6e1^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:876a^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.6.225^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.135.106^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`roan.ns.cloudflare.com` ⭐
NS	`sloan.ns.cloudflare.com`
MX	`smtp.secureserver.net` ⭐
MX	`mailstore1.secureserver.net`⁽¹⁰⁾
TXT	`D6320626`
TXT	`v=spf1 include:secureserver.net -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.6.225, 172.67.135.106
		IPv6 hints	2606:4700:3033::6815:6e1, 2606:4700:3037::ac43:876a
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=9, name=cloudflare-ech.com
SOA	`roan.ns.cloudflare.com`dns@cloudflare.com serial=2401932318

Previously MX for

containertobuild.com

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DNS History

2 records (0 active, 2 former)

○A103.233.192.2162015-10-10 → 2026-02-16 · 5 obs

○ 2015-01-16 03:30:42
● 2015-10-10 23:24:00
● 2026-02-16 05:07:02
○ 2026-04-01 08:17:00
○ 2026-05-12 05:36:12

○A61.19.247.2062015-01-16 → 2015-01-16 · 3 obs

● 2015-01-16 03:30:42
○ 2015-10-10 23:24:00
○ 2026-05-12 05:36:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...	-
containertobuild.com	roan.ns.cloudflare.com, sloan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.52

NS records: roan.ns.cloudflare.com, sloan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for containertobuild.com (unsigned zone)

⏱️ Timing

Total: 125ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 12

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

mail.containertobuild.com - robtex.com