ctbuildings.com - robtex.com

ctbuildings.com

DNSSEC⚠️ Not signed
NSns-cloud-b1.googledomains.com ⭐
A2001:4860:4802:32::6b🇺🇸 Google2001:4860::/32
PTRns-cloud-b1.googledomains.com
A216.239.32.107🇺🇸 Google216.239.32.0/24
PTRns-cloud-b1.googledomains.com
NSns-cloud-b2.googledomains.com
A2001:4860:4802:34::6b🇺🇸 Google2001:4860::/32
PTRns-cloud-b2.googledomains.com
A216.239.34.107🇺🇸 Google216.239.34.0/24
PTRns-cloud-b2.googledomains.com
NSns-cloud-b3.googledomains.com
A2001:4860:4802:36::6b🇺🇸 Google2001:4860::/32
PTRns-cloud-b3.googledomains.com
A216.239.36.107🇺🇸 Google216.239.36.0/24
PTRns-cloud-b3.googledomains.com
NSns-cloud-b4.googledomains.com
A2001:4860:4802:38::6b🇺🇸 Google2001:4860::/32
PTRns-cloud-b4.googledomains.com
A216.239.38.107🇺🇸 Google216.239.38.0/24
PTRns-cloud-b4.googledomains.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4023:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRdl-in-f27.1e100.net
A142.251.2.27🇺🇸 Google142.251.2.0/24
PTRdl-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2a00:1450:4025:402::1a🇳🇱 Google2a00:1450:4025::/48
PTRrb-in-f26.1e100.net
A142.250.102.26🇺🇸 Google142.250.102.0/24
PTRrb-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:4013:c1e::1b🇳🇱 Google2a00:1450:4013::/48
PTRyugrqzs-in-f27.1e100.net
A192.178.213.27🇺🇸 Google192.178.213.0/24
PTRyugrqzs-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:4025:c01::1b🇵🇱 Google2a00:1450:4025::/48
PTRrd-in-f27.1e100.net
A142.250.147.26🇺🇸 Google142.250.147.0/24
PTRrd-in-f26.1e100.net
TXTv=spf1 include:_spf.google.com ~all
SOAns-cloud-b1.googledomains.comcloud-dns-hostmaster@google.com serial=4

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774414817

Same first word

ctbuildings.com

Similar names

tcbuildings.com

DNS History

9 records (9 active, 0 former)

NSns-cloud-b1.googledomains.comns-cloud-b2.googledomains.comns-cloud-b3.googledomains.comns-cloud-b4.googledomains.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.com
●NSns-cloud-b1.googledomains.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26
●NSns-cloud-b2.googledomains.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26
●NSns-cloud-b3.googledomains.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26
●NSns-cloud-b4.googledomains.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26
●MXalt1.aspmx.l.google.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26
●MXalt2.aspmx.l.google.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26
●MXalt3.aspmx.l.google.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26
●MXalt4.aspmx.l.google.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26
●MXaspmx.l.google.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 03:27:34
● 2026-03-25 05:01:26

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comj.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net, a.gtld-servers.net...-
ctbuildings.comns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com8 records

✅ Authoritative Response

Server:216.239.36.107

NS records: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 362ms | Queries: -

📄 Records

TypeCountSample Data
NS4ns-cloud-b3.googledomains.com, ns-cloud-b2.googledomains.com...
MX5alt3.aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 5)...
TXT1v=spf1 include:_spf.google.com ~all
SOA1ns-cloud-b1.googledomains.com cloud-dns-

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-b1.googledomains.com, ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com...)

Analysis

Name Servers

ctbuildings.com's delegation is handled by four name servers: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com and ns-cloud-b4.googledomains.com.

ctbuildings.com partially shares name servers with other domains; examples include meatchristian.com, syachicloud.black, colmeia.cx, aqualumin.com and sha3ibna.com.

Host names with two IPs:

ns-cloud-b1.googledomains.com points to 2001:4860:4802:32::6b and 216.239.32.107

ns-cloud-b2.googledomains.com points to 2001:4860:4802:34::6b and 216.239.34.107

ns-cloud-b3.googledomains.com points to 2001:4860:4802:36::6b and 216.239.36.107

ns-cloud-b4.googledomains.com points to 2001:4860:4802:38::6b and 216.239.38.107

Mail Servers

Five mail servers handle ctbuildings.com: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

ctbuildings.com shares some mail servers with other domains, at least partially, such as attichop.com, thedavidsonlegacy.com, studentpsyche.com, fdidesign.com and recircle.us.

These mail servers are often used together with aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to: 2607:f8b0:4023:c0d::1b and 142.251.2.27

alt1.aspmx.l.google.com points to: 2a00:1450:4025:402::1a and 142.250.102.26

alt2.aspmx.l.google.com points to: 2a00:1450:4013:c1e::1b and 192.178.213.27

alt3.aspmx.l.google.com points to: 2a00:1450:4009:c0f::1b and 192.178.223.26

alt4.aspmx.l.google.com points to: 2a00:1450:4025:c01::1b and 142.250.147.26