cobuildhost.com - dns.ninja

`cobuildhost.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:94af^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3031::6815:57f0^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.240^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.175^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kate.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a7c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kate.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c07c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`kate.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:207c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`kate.ns.cloudflare.com`
		A	108.162.192.124^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kate.ns.cloudflare.com`
		A	172.64.32.124^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kate.ns.cloudflare.com`
		A	173.245.58.124^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`kate.ns.cloudflare.com`
NS	`noah.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b85^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c185^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`noah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2185^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`noah.ns.cloudflare.com`
		A	108.162.193.133^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	172.64.33.133^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	173.245.59.133^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
TXT	`google-site-verification=0DUJzLrCPD0pSxBnCem16s8Km5E1vU5esId1zoICcSc`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.87.240, 172.67.148.175
		IPv6 hints	2606:4700:3030::ac43:94af, 2606:4700:3031::6815:57f0
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=72, name=cloudflare-ech.com
SOA	`kate.ns.cloudflare.com`dns@cloudflare.com serial=2406862539

`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=1782478230

Subdomains

s5.cobuildhost.com

s1.cobuildhost.com

s4.cobuildhost.com

Same first word

cobuildhost.com

Similar names

studiobloch.fo

DNS History

12 records (6 active, 6 former)

●NSkate.ns.cloudflare.com2026-03-02 → 2026-06-26 · 2 obs

● 2026-03-02 22:58:24
● 2026-06-26 12:57:46

●NSnoah.ns.cloudflare.com2026-03-02 → 2026-06-26 · 2 obs

● 2026-03-02 22:58:24
● 2026-06-26 12:57:46

●A104.21.87.2402026-03-04 → 2026-06-26 · 20 obs

○ 2026-03-02 22:58:24
● 2026-03-04 23:30:00
● 2026-03-24 21:02:40
○ 2026-03-25 17:41:02
○ 2026-03-26 13:20:46
● 2026-03-29 00:09:04
● 2026-03-29 19:23:54
○ 2026-03-31 11:29:50
● 2026-04-03 08:58:10
● 2026-04-07 16:42:18
○ 2026-04-09 13:02:22
○ 2026-04-11 01:20:24
● 2026-04-22 20:06:08
● 2026-05-10 06:52:30
○ 2026-05-10 09:06:50
● 2026-05-18 07:55:54
● 2026-06-01 06:15:26
○ 2026-06-03 21:21:04
● 2026-06-06 21:17:28
● 2026-06-26 12:57:46

●A172.67.148.1752026-03-04 → 2026-06-26 · 20 obs

○A188.114.96.02026-03-02 → 2026-06-03 · 20 obs

● 2026-03-02 22:58:24
○ 2026-03-04 23:30:00
○ 2026-03-24 21:02:40
● 2026-03-25 17:41:02
● 2026-03-26 13:20:46
○ 2026-03-29 00:09:04
○ 2026-03-29 19:23:54
● 2026-03-31 11:29:50
○ 2026-04-03 08:58:10
○ 2026-04-07 16:42:18
● 2026-04-09 13:02:22
● 2026-04-11 01:20:24
○ 2026-04-22 20:06:08
○ 2026-05-10 06:52:30
● 2026-05-10 09:06:50
○ 2026-05-18 07:55:54
○ 2026-06-01 06:15:26
● 2026-06-03 21:21:04
○ 2026-06-06 21:17:28
○ 2026-06-26 12:57:46

○A188.114.97.02026-03-02 → 2026-06-03 · 20 obs

●A2606:4700:3030::ac43:94af2026-06-26 → 2026-06-26 · 3 obs

○ 2026-06-06 21:17:28
● 2026-06-26 12:57:44
● 2026-06-26 12:57:46

●A2606:4700:3031::6815:57f02026-06-26 → 2026-06-26 · 3 obs

○ 2026-06-06 21:17:28
● 2026-06-26 12:57:44
● 2026-06-26 12:57:46

○A2606:4700:3032::6815:57f02026-03-04 → 2026-06-06 · 21 obs

○A2606:4700:3032::ac43:94af2026-03-04 → 2026-06-06 · 21 obs

○A2a06:98c1:3120::2026-03-02 → 2026-06-03 · 20 obs

○A2a06:98c1:3121::2026-03-02 → 2026-06-03 · 20 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cobuildhost.com	kate.ns.cloudflare.com, noah.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.133

NS records: kate.ns.cloudflare.com, noah.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 2096ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.148.175, 104.21.87.240`
AAAA	2	`2606:4700:3031::6815:57f0, 2606:4700:3030::ac43:94af`
NS	2	`kate.ns.cloudflare.com, noah.ns.cloudflare.com`
TXT	1	`google-site-verification=0DUJzLrCPD0pSxB`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`kate.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The domain cobuildhost.com is parent to s5.cobuildhost.com, s1.cobuildhost.com and s4.cobuildhost.com.

IP Addresses

cobuildhost.com directs to four IP numbers, which are 104.21.87.240, 172.67.148.175, 2606:4700:3030::ac43:94af and 2606:4700:3031::6815:57f0.

Additional host names — fkip.unai.edu, imortal-basket.pt, tanzkreis-wertheim.de and two others — share IP numbers with cobuildhost.com.

Name Servers

DNS delegation for cobuildhost.com points to two name servers: kate.ns.cloudflare.com and noah.ns.cloudflare.com.

cobuildhost.com shares its name server setup with other domains, including webitech.us, salanki.se, eterprime.pl and two others.

At least some of cobuildhost.com's name servers are shared with other domains, for example annacackler.com, pkosijek.hr, hausrush.com and two more.

These name servers are often deployed together with the name servers annalise.ns.cloudflare.com, toby.ns.cloudflare.com, weston.ns.cloudflare.com and luke.ns.cloudflare.com.

Host names with 6 IP numbers:

kate.ns.cloudflare.com has IP addresses 108.162.192.124, 172.64.32.124 and 173.245.58.124, plus 3 other.

noah.ns.cloudflare.com has IP addresses 108.162.193.133, 172.64.33.133 and 173.245.59.133, plus 3 other.