`collaborative-cities.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:81ee^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::6815:1d2^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.1.210^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.129.238^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alexa.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26d7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2d7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alexa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22d7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alexa.ns.cloudflare.com`
		A	108.162.194.215^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexa.ns.cloudflare.com`
		A	162.159.38.215^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexa.ns.cloudflare.com`
		A	172.64.34.215^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alexa.ns.cloudflare.com`
NS	`nolan.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c38^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nolan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c338^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nolan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2338^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nolan.ns.cloudflare.com`
		A	108.162.195.56^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nolan.ns.cloudflare.com`
		A	162.159.44.56^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nolan.ns.cloudflare.com`
		A	172.64.35.56^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nolan.ns.cloudflare.com`
MX	`mx.stackmail.com` ⭐
		A	185.151.28.67^{🇬🇧 TWENTYI185.151.28.0/24}
			PTR	`mx.stackmail.com`
TXT	`v=spf1 include:spf.stackmail.com a mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.1.210, 172.67.129.238
		IPv6 hints	2606:4700:3031::ac43:81ee, 2606:4700:3034::6815:1d2
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=111, name=cloudflare-ech.com
SOA	`alexa.ns.cloudflare.com`dns@cloudflare.com serial=2398147600

`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=1777486116

Previously MX for

collaborative-cities.com

Same first word

collaborative-cities.com

DNS History

11 records (7 active, 4 former)

●NSalexa.ns.cloudflare.com2026-03-29 → 2026-04-29 · 3 obs

○ 2017-04-02 00:22:24
● 2026-03-29 13:05:14
● 2026-04-29 18:37:16

●NSnolan.ns.cloudflare.com2026-03-29 → 2026-04-29 · 3 obs

○ 2017-04-02 00:22:24
● 2026-03-29 13:05:14
● 2026-04-29 18:37:16

○NSns1.panelboxmanager.com2015-05-30 → 2017-04-02 · 4 obs

● 2015-05-30 01:06:16
● 2017-04-02 00:22:24
○ 2026-03-29 13:05:14
○ 2026-04-29 18:37:16

○NSns2.panelboxmanager.com2015-05-30 → 2017-04-02 · 4 obs

● 2015-05-30 01:06:16
● 2017-04-02 00:22:24
○ 2026-03-29 13:05:14
○ 2026-04-29 18:37:16

○MXcollaborative-cities.com2015-05-30 → 2017-04-02 · 4 obs

● 2015-05-30 01:06:16
● 2017-04-02 00:22:24
○ 2026-03-29 13:05:14
○ 2026-04-29 18:37:16

●MXmx.stackmail.com2026-03-29 → 2026-04-29 · 3 obs

○ 2017-04-02 00:22:24
● 2026-03-29 13:05:14
● 2026-04-29 18:37:16

●A104.21.1.2102026-03-29 → 2026-04-29 · 3 obs

○ 2017-04-02 00:22:24
● 2026-03-29 13:05:14
● 2026-04-29 18:37:16

●A172.67.129.2382026-03-29 → 2026-04-29 · 3 obs

○ 2017-04-02 00:22:24
● 2026-03-29 13:05:14
● 2026-04-29 18:37:16

●A2606:4700:3031::ac43:81ee2026-03-29 → 2026-04-29 · 3 obs

○ 2017-04-02 00:22:24
● 2026-03-29 13:05:14
● 2026-04-29 18:37:16

●A2606:4700:3034::6815:1d22026-03-29 → 2026-04-29 · 3 obs

○ 2017-04-02 00:22:24
● 2026-03-29 13:05:14
● 2026-04-29 18:37:16

○A72.55.186.572015-05-30 → 2017-04-02 · 4 obs

● 2015-05-30 01:06:16
● 2017-04-02 00:22:24
○ 2026-03-29 13:05:14
○ 2026-04-29 18:37:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
collaborative-cities.com	alexa.ns.cloudflare.com, nolan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.215

NS records: alexa.ns.cloudflare.com, nolan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for collaborative-cities.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.1.210, 172.67.129.238`
AAAA	2	`2606:4700:3034::6815:1d2, 2606:4700:3031::ac43:81ee`
NS	2	`alexa.ns.cloudflare.com, nolan.ns.cloudflare.com`
MX	1	`mx.stackmail.com (pri: 10)`
TXT	1	`v=spf1 include:spf.stackmail.com a mx -a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alexa.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

collaborative-cities.com refers to four IP numbers: 2606:4700:3031::ac43:81ee, 2606:4700:3034::6815:1d2, 104.21.1.210 and 172.67.129.238.

Other host names, for instance 006500.com, usgcompany.ru, crackin.net, with-me.co and rethought-communications.com share IP numbers with collaborative-cities.com.

Name Servers

collaborative-cities.com's delegation uses two name servers: alexa.ns.cloudflare.com and nolan.ns.cloudflare.com.

collaborative-cities.com uses the same name server setup as other domains, such as tonybet.lv, packpack.exchange, mobflow21.com, taskadapter.com and wordpressgroup.com.

collaborative-cities.com at least partially shares name servers with other domains, including garethclegg.com, 500zuqiubifenzhibowanzhengban.cn, plainzone.us, wfmjmc.com and qiutanbifenjishizuqiubifen.cn.

These name servers are often used with yisroel.ns.cloudflare.com and simone.ns.cloudflare.com.

Host names with six IP numbers:

alexa.ns.cloudflare.com points to 2606:4700:50::a29f:26d7, 2803:f800:50::6ca2:c2d7, 2a06:98c1:50::ac40:22d7, 108.162.194.215, 162.159.38.215 and 172.64.34.215.

nolan.ns.cloudflare.com points to 2606:4700:58::a29f:2c38, 2803:f800:50::6ca2:c338, 2a06:98c1:50::ac40:2338, 108.162.195.56, 162.159.44.56 and 172.64.35.56.

Mail Servers

A single mail server handles collaborative-cities.com, mx.stackmail.com.

collaborative-cities.com shares the same mail server setup as other domains, for instance nauticomms.com, communistonline.com, flatholmsociety.org.uk, thetatechnologies.com.pk and pgpkecsungaiserut.org.

Host name mx.stackmail.com resolves to a single IP: 185.151.28.67.

collaborative-cities.com - robtex.com