`mail.building13.com`

DNSSEC

⚠️ Not signed

`building13.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:8bc9^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:8a6^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.166^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.139.201^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cheryl.ns.cloudflare.com` ⭐
NS	`drew.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
TXT	`google-site-verification=RsNCoUz2vYwtvLzSKHJDcL4nKmyWbnzkfiC4cgrkaVA`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.8.166, 172.67.139.201
		IPv6 hints	2606:4700:3033::ac43:8bc9, 2606:4700:3037::6815:8a6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=186, name=cloudflare-ech.com
SOA	`cheryl.ns.cloudflare.com`dns@cloudflare.com serial=2401059606

rank #529728 globally
rank #237867 in the tld

PTR for

10.203.246.63.in-addr.arpa

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DNS History

23 records (0 active, 23 former)

○A173.194.67.1212015-11-29 → 2015-11-29 · 4 obs

○ 2015-08-10 02:14:34
● 2015-11-29 22:00:14
○ 2016-03-08 09:35:54
○ 2026-04-15 01:39:40

○A173.194.79.1212015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2404:6800:4003:c01::792015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2404:6800:4008:c04::792015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2404:6800:4008:c06::792015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2607:f8b0:400d:c06::792015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2607:f8b0:400e:c01::792015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2607:f8b0:400e:c04::792015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2800:3f0:4003:c00::792015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2a00:1450:400b:c02::792015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A2a00:1450:400c:c05::792015-11-29 → 2015-11-29 · 4 obs

○ 2015-08-10 02:14:34
● 2015-11-29 22:00:14
○ 2016-03-08 09:35:54
○ 2026-04-15 01:39:40

○A2a00:1450:400c:c09::792016-03-08 → 2016-06-27 · 5 obs

○ 2015-11-29 22:00:14
● 2016-03-08 09:35:54
● 2016-06-27 17:21:26
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A63.246.203.102007-11-27 → 2007-11-27 · 3 obs

● 2007-11-27 14:36:32
○ 2015-08-10 02:14:34
○ 2026-04-15 01:39:40

○A64.233.166.1212016-03-08 → 2016-06-27 · 5 obs

○ 2015-11-29 22:00:14
● 2016-03-08 09:35:54
● 2016-06-27 17:21:26
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A64.233.186.1212015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A64.233.188.1212015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A74.125.130.1212015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A74.125.204.1212015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A74.125.22.1212015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A74.125.24.1212015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○A74.125.28.1212015-08-10 → 2015-08-10 · 4 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○CNAMEghs.google.com2015-08-10 → 2016-06-27 · 5 obs

○ 2007-11-27 14:36:32
● 2015-08-10 02:14:34
● 2016-06-27 17:21:26
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

○CNAMEghs.l.google.com2015-11-29 → 2016-06-27 · 5 obs

○ 2015-08-10 02:14:34
● 2015-11-29 22:00:14
● 2016-06-27 17:21:26
○ 2026-04-14 23:59:08
○ 2026-04-15 01:39:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
building13.com	cheryl.ns.cloudflare.com, drew.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.83

NS records: cheryl.ns.cloudflare.com, drew.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for building13.com (unsigned zone)

⏱️ Timing

Total: 159ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 12

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

mail.building13.com - robtex.com