`robertbrustein.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:3a8b^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:cc7d^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.58.139^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.204.125^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bart.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b47^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c147^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bart.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2147^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bart.ns.cloudflare.com`
		A	108.162.193.71^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	172.64.33.71^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
		A	173.245.59.71^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bart.ns.cloudflare.com`
NS	`dahlia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a59^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c059^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dahlia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2059^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dahlia.ns.cloudflare.com`
		A	108.162.192.89^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	172.64.32.89^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
		A	173.245.58.89^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dahlia.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.58.139, 172.67.204.125
		IPv6 hints	2606:4700:3031::6815:3a8b, 2606:4700:3037::ac43:cc7d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=193, name=cloudflare-ech.com
SOA	`bart.ns.cloudflare.com`dns@cloudflare.com serial=2399522891

`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=1778614396

Same first word

robertbrustein.com

DNS History

11 records (6 active, 5 former)

●NSbart.ns.cloudflare.com2026-05-11 → 2026-05-12 · 3 obs

○ 2017-03-29 17:40:10
● 2026-05-11 14:38:38
● 2026-05-12 19:45:58

●NSdahlia.ns.cloudflare.com2026-05-11 → 2026-05-12 · 3 obs

○ 2017-03-29 17:40:10
● 2026-05-11 14:38:38
● 2026-05-12 19:45:58

○NSns57.domaincontrol.com2015-08-14 → 2017-03-29 · 4 obs

● 2015-08-14 20:18:40
● 2017-03-29 17:40:10
○ 2026-05-11 14:38:38
○ 2026-05-12 19:45:58

○NSns58.domaincontrol.com2015-08-14 → 2017-03-29 · 4 obs

● 2015-08-14 20:18:40
● 2017-03-29 17:40:10
○ 2026-05-11 14:38:38
○ 2026-05-12 19:45:58

○MXmailstore1.secureserver.net2015-08-14 → 2017-03-29 · 4 obs

● 2015-08-14 20:18:40
● 2017-03-29 17:40:10
○ 2026-05-11 14:38:38
○ 2026-05-12 19:45:58

○MXsmtp.secureserver.net2015-08-14 → 2017-03-29 · 4 obs

● 2015-08-14 20:18:40
● 2017-03-29 17:40:10
○ 2026-05-11 14:38:38
○ 2026-05-12 19:45:58

●A104.21.58.1392026-05-11 → 2026-05-12 · 3 obs

○ 2017-03-29 17:40:10
● 2026-05-11 14:38:38
● 2026-05-12 19:45:58

●A172.67.204.1252026-05-11 → 2026-05-12 · 3 obs

○ 2017-03-29 17:40:10
● 2026-05-11 14:38:38
● 2026-05-12 19:45:58

●A2606:4700:3031::6815:3a8b2026-05-11 → 2026-05-12 · 3 obs

○ 2017-03-29 17:40:10
● 2026-05-11 14:38:38
● 2026-05-12 19:45:58

●A2606:4700:3037::ac43:cc7d2026-05-11 → 2026-05-12 · 3 obs

○ 2017-03-29 17:40:10
● 2026-05-11 14:38:38
● 2026-05-12 19:45:58

○A97.74.144.912015-08-14 → 2017-03-29 · 4 obs

● 2015-08-14 20:18:40
● 2017-03-29 17:40:10
○ 2026-05-11 14:38:38
○ 2026-05-12 19:45:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net...	-
robertbrustein.com	bart.ns.cloudflare.com, dahlia.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.89

NS records: bart.ns.cloudflare.com, dahlia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for robertbrustein.com (unsigned zone)

⏱️ Timing

Total: 369ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.58.139, 172.67.204.125`
AAAA	2	`2606:4700:3031::6815:3a8b, 2606:4700:3037::ac43:cc7d`
NS	2	`bart.ns.cloudflare.com, dahlia.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bart.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

robertbrustein.com points to four IP numbers: 2606:4700:3031::6815:3a8b, 2606:4700:3037::ac43:cc7d, 104.21.58.139 and 172.67.204.125.

Other host names including nr51.cn, 297133.com, www.ruay.cloud, firsttrackgps.com and www.nameapi.org share IP numbers with robertbrustein.com.

Name Servers

robertbrustein.com's delegation uses two name servers, bart.ns.cloudflare.com and dahlia.ns.cloudflare.com.

robertbrustein.com shares the same name server setup as other domains, for example mxt2023.nl, narinsky.net, rankw.de, launchwatertown.com and secure-server.sbs.

robertbrustein.com at least partially shares name servers with other domains, including ducks.nhl.com, poolvalue.com, eviz.org, kadinponorogo.org and mymanmeat.com.

these name servers are commonly used together with sullivan.ns.cloudflare.com, hera.ns.cloudflare.com and roan.ns.cloudflare.com.

Host names with six IP numbers:

bart.ns.cloudflare.com points to: 2606:4700:58::adf5:3b47, 2803:f800:50::6ca2:c147, 2a06:98c1:50::ac40:2147, 108.162.193.71, 172.64.33.71 and 173.245.59.71.

dahlia.ns.cloudflare.com points to: 2606:4700:50::adf5:3a59, 2803:f800:50::6ca2:c059, 2a06:98c1:50::ac40:2059, 108.162.192.89, 172.64.32.89 and 173.245.58.89.

robertbrustein.com - robtex.com