`gcmcolloquium.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:b443^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:1226^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.18.38^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.180.67^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lou.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bc7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lou.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1c7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lou.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21c7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lou.ns.cloudflare.com`
		A	108.162.193.199^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lou.ns.cloudflare.com`
		A	172.64.33.199^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lou.ns.cloudflare.com`
		A	173.245.59.199^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lou.ns.cloudflare.com`
NS	`suzanne.ns.cloudflare.com`
		A	2606:4700:50::a29f:2657^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`suzanne.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c257^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`suzanne.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2257^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`suzanne.ns.cloudflare.com`
		A	108.162.194.87^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`suzanne.ns.cloudflare.com`
		A	162.159.38.87^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`suzanne.ns.cloudflare.com`
		A	172.64.34.87^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`suzanne.ns.cloudflare.com`
MX	`ghs.google.com` ⭐
		A	2607:f8b0:4004:c1b::79^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f121.1e100.net`
		A	142.251.163.121^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f121.1e100.net`
TXT	`google-site-verification=uGN3Q6t6YOc_vtmeuxb7daggLA1MI41HsKPyCiaT4L0`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.18.38, 172.67.180.67
		IPv6 hints	2606:4700:3033::ac43:b443, 2606:4700:3037::6815:1226
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=210, name=cloudflare-ech.com
SOA	`lou.ns.cloudflare.com`dns@cloudflare.com serial=2410110634

`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=1785763572

Same first word

gcmcolloquium.com

DNS History

11 records (7 active, 4 former)

●NSlou.ns.cloudflare.com2026-07-23 → 2026-08-03 · 2 obs

● 2026-07-23 09:07:36
● 2026-08-03 13:32:20

●NSsuzanne.ns.cloudflare.com2026-07-23 → 2026-08-03 · 2 obs

● 2026-07-23 09:07:36
● 2026-08-03 13:32:20

●MXghs.google.com2026-07-23 → 2026-08-03 · 2 obs

● 2026-07-23 09:07:36
● 2026-08-03 13:32:20

●A104.21.18.382026-08-03 → 2026-08-03 · 3 obs

○ 2026-07-23 09:07:36
● 2026-08-03 13:32:18
● 2026-08-03 13:32:20

●A172.67.180.672026-08-03 → 2026-08-03 · 3 obs

○ 2026-07-23 09:07:36
● 2026-08-03 13:32:18
● 2026-08-03 13:32:20

○A188.114.96.02026-07-23 → 2026-07-23 · 3 obs

● 2026-07-23 09:07:36
○ 2026-08-03 13:32:18
○ 2026-08-03 13:32:20

○A188.114.97.02026-07-23 → 2026-07-23 · 3 obs

● 2026-07-23 09:07:36
○ 2026-08-03 13:32:18
○ 2026-08-03 13:32:20

●A2606:4700:3033::ac43:b4432026-08-03 → 2026-08-03 · 3 obs

○ 2026-07-23 09:07:36
● 2026-08-03 13:32:18
● 2026-08-03 13:32:20

●A2606:4700:3037::6815:12262026-08-03 → 2026-08-03 · 3 obs

○ 2026-07-23 09:07:36
● 2026-08-03 13:32:18
● 2026-08-03 13:32:20

○A2a06:98c1:3120::2026-07-23 → 2026-07-23 · 3 obs

● 2026-07-23 09:07:36
○ 2026-08-03 13:32:18
○ 2026-08-03 13:32:20

○A2a06:98c1:3121::2026-07-23 → 2026-07-23 · 3 obs

● 2026-07-23 09:07:36
○ 2026-08-03 13:32:18
○ 2026-08-03 13:32:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, l.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net...	-
gcmcolloquium.com	lou.ns.cloudflare.com, suzanne.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.87

NS records: lou.ns.cloudflare.com, suzanne.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gcmcolloquium.com (unsigned zone)

⏱️ Timing

Total: 284ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.18.38, 172.67.180.67`
AAAA	2	`2606:4700:3037::6815:1226, 2606:4700:3033::ac43:b443`
NS	2	`lou.ns.cloudflare.com, suzanne.ns.cloudflare.com`
MX	1	`ghs.google.com (pri: 1200)`
TXT	1	`google-site-verification=uGN3Q6t6YOc_vtm`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lou.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

gcmcolloquium.com resolves to four IP addresses: 104.21.18.38, 172.67.180.67, 2606:4700:3033::ac43:b443 and 2606:4700:3037::6815:1226.

apopular(0x706f726e).com, learnlive.site, testriese.de plus two other host names have IP numbers in common with gcmcolloquium.com.

Name Servers

gcmcolloquium.com uses two name servers for its delegation: lou.ns.cloudflare.com and suzanne.ns.cloudflare.com.

The name server configuration of gcmcolloquium.com is shared with other domains, for instance starrlumber.com, sdy2024.com, hmisula.org and two others.

gcmcolloquium.com shares at least some of its name servers with other domains, including echotv.ru, bjworldmem.com, heerlijkevakantie.nl and two others.

These name servers are frequently paired with the name servers ezra.ns.cloudflare.com and steven.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname lou.ns.cloudflare.com directs to 108.162.193.199, 172.64.33.199 and 173.245.59.199 along with 3 other IP addresses.

Hostname suzanne.ns.cloudflare.com directs to 108.162.194.87, 162.159.38.87 and 172.64.34.87 along with 3 other IP addresses.

Mail Servers

gcmcolloquium.com uses one mail server — ghs.google.com.

The mail server setup of gcmcolloquium.com matches that of other domains such as masoncountyguide.com, kawantogel.io, jackhererfoundation.org and two others.

gcmcolloquium.com shares at least some of its mail servers with other domains, such as vvtdigital.com and metrologia.org.br.

ghs.google.com points to two IP addresses: 142.251.163.121 and 2607:f8b0:4004:c1b::79.

gcmcolloquium.com - robtex.com