`blackcrust.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:34be^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:cade^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.52.190^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.202.222^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`renan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c3e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`renan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c33e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`renan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:233e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`renan.ns.cloudflare.com`
		A	108.162.195.62^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`renan.ns.cloudflare.com`
		A	162.159.44.62^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`renan.ns.cloudflare.com`
		A	172.64.35.62^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`renan.ns.cloudflare.com`
NS	`tiffany.ns.cloudflare.com`
		A	2606:4700:50::a29f:263c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tiffany.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c23c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tiffany.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:223c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tiffany.ns.cloudflare.com`
		A	108.162.194.60^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tiffany.ns.cloudflare.com`
		A	162.159.38.60^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tiffany.ns.cloudflare.com`
		A	172.64.34.60^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tiffany.ns.cloudflare.com`
MX	`mx01.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
TXT	`apple-domain=1Z3Cu3OL206errco`
TXT	`v=spf1 include:icloud.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.52.190, 172.67.202.222
		IPv6 hints	2606:4700:3033::6815:34be, 2606:4700:3037::ac43:cade
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=241, name=cloudflare-ech.com
SOA	`renan.ns.cloudflare.com`dns@cloudflare.com serial=2406982062

`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=1781771830

Same first word

blackcrust.com

DNS History

19 records (8 active, 11 former)

○NSdpns1.dnsnameserver.org2015-06-11 → 2016-04-18 · 4 obs

● 2015-06-11 18:53:18
● 2016-04-18 15:50:52
○ 2016-12-31 20:31:08
○ 2026-06-18 08:39:32

○NSdpns2.dnsnameserver.org2015-06-11 → 2016-04-18 · 4 obs

● 2015-06-11 18:53:18
● 2016-04-18 15:50:52
○ 2016-12-31 20:31:08
○ 2026-06-18 08:39:32

○NSdpns3.dnsnameserver.org2015-06-11 → 2016-04-18 · 4 obs

● 2015-06-11 18:53:18
● 2016-04-18 15:50:52
○ 2016-12-31 20:31:08
○ 2026-06-18 08:39:32

○NSdpns4.dnsnameserver.org2015-06-11 → 2016-04-18 · 4 obs

● 2015-06-11 18:53:18
● 2016-04-18 15:50:52
○ 2016-12-31 20:31:08
○ 2026-06-18 08:39:32

○NSns111373.ztomy.com2016-12-31 → 2016-12-31 · 4 obs

○ 2016-04-18 15:50:52
● 2016-12-31 20:31:08
○ 2026-05-29 16:12:56
○ 2026-06-18 08:39:32

○NSns211373.ztomy.com2016-12-31 → 2016-12-31 · 4 obs

○ 2016-04-18 15:50:52
● 2016-12-31 20:31:08
○ 2026-05-29 16:12:56
○ 2026-06-18 08:39:32

●NSrenan.ns.cloudflare.com2026-05-29 → 2026-06-18 · 3 obs

○ 2016-12-31 20:31:08
● 2026-05-29 16:12:56
● 2026-06-18 08:39:32

●NStiffany.ns.cloudflare.com2026-05-29 → 2026-06-18 · 3 obs

○ 2016-12-31 20:31:08
● 2026-05-29 16:12:56
● 2026-06-18 08:39:32

●MXmx01.mail.icloud.com2026-05-29 → 2026-06-18 · 2 obs

● 2026-05-29 16:12:56
● 2026-06-18 08:39:32

●MXmx02.mail.icloud.com2026-05-29 → 2026-06-18 · 2 obs

● 2026-05-29 16:12:56
● 2026-06-18 08:39:32

●A104.21.52.1902026-05-29 → 2026-06-18 · 3 obs

○ 2016-12-31 20:31:08
● 2026-05-29 16:12:56
● 2026-06-18 08:39:32

○A141.8.226.252016-12-31 → 2016-12-31 · 4 obs

○ 2016-04-18 15:50:52
● 2016-12-31 20:31:08
○ 2026-05-29 16:12:56
○ 2026-06-18 08:39:32

●A172.67.202.2222026-05-29 → 2026-06-18 · 3 obs

○ 2016-12-31 20:31:08
● 2026-05-29 16:12:56
● 2026-06-18 08:39:32

○A208.87.150.502015-06-11 → 2016-04-18 · 4 obs

● 2015-06-11 18:53:18
● 2016-04-18 15:50:52
○ 2016-12-31 20:31:08
○ 2026-06-18 08:39:32

○A2606:4700:3032::6815:34be2026-05-29 → 2026-06-10 · 4 obs

○ 2016-12-31 20:31:08
● 2026-05-29 16:12:56
● 2026-06-10 14:40:24
○ 2026-06-18 08:39:32

○A2606:4700:3032::ac43:cade2026-05-29 → 2026-06-10 · 4 obs

○ 2016-12-31 20:31:08
● 2026-05-29 16:12:56
● 2026-06-10 14:40:24
○ 2026-06-18 08:39:32

●A2606:4700:3033::6815:34be2026-06-18 → 2026-06-18 · 2 obs

○ 2026-06-10 14:40:24
● 2026-06-18 08:39:32

●A2606:4700:3037::ac43:cade2026-06-18 → 2026-06-18 · 2 obs

○ 2026-06-10 14:40:24
● 2026-06-18 08:39:32

○PTRns111373.ztomy.com2016-12-31 → 2016-12-31 · 3 obs

● 2016-12-31 20:31:08
○ 2026-05-29 16:12:56
○ 2026-06-18 08:39:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, d.gtld-servers.net...	-
blackcrust.com	tiffany.ns.cloudflare.com, renan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.62

NS records: tiffany.ns.cloudflare.com, renan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blackcrust.com (unsigned zone)

⏱️ Timing

Total: 167ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.202.222, 104.21.52.190`
AAAA	2	`2606:4700:3037::ac43:cade, 2606:4700:3033::6815:34be`
NS	2	`renan.ns.cloudflare.com, tiffany.ns.cloudflare.com`
MX	2	`mx01.mail.icloud.com (pri: 10), mx02.mail.icloud.com (pri: 10)`
TXT	2	`apple-domain=1Z3Cu3OL206errco, v=spf1 include:icloud.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`renan.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

blackcrust.com resolves to four IP addresses: 104.21.52.190, 172.67.202.222, 2606:4700:3033::6815:34be and 2606:4700:3037::ac43:cade.

zonadigital.pt, 1f3561d6def1.designoma.com, serviciospopularesrecoleta.cl and two other host names share IP numbers with blackcrust.com.

Name Servers

Two name servers handle the delegation for blackcrust.com: renan.ns.cloudflare.com and tiffany.ns.cloudflare.com.

blackcrust.com uses the same name servers as several other domains — among them libremax.com, ami2.com, defahrradbekleidung.com and two more.

blackcrust.com has at least partial name server overlap with other domains, such as i-valve.com, vondx.net, heldnotice.com and two others.

It is common to see these name servers used together with name servers steven.ns.cloudflare.com and devin.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

renan.ns.cloudflare.com resolves to 108.162.195.62, 162.159.44.62 and 172.64.35.62 among others, with 3 other IP addresses in total.

tiffany.ns.cloudflare.com resolves to 108.162.194.60, 162.159.38.60 and 172.64.34.60 among others, with 3 other IP addresses in total.

Mail Servers

Mail for blackcrust.com is handled by two mail servers — mx01.mail.icloud.com and mx02.mail.icloud.com.

blackcrust.com uses an identical mail server configuration to several other domains — among them gruposolipa.com, miker.dk, krasava.com and two more.

blackcrust.com uses mail servers that are also used by other domains, including britse.com, chalama.net and angusyoung.co.uk.

Hostnames that resolve to 6 IP addresses:

mx01.mail.icloud.com resolves to 17.42.251.62, 17.56.9.31 and 17.57.152.5 among others, with 3 other IP addresses in total.

mx02.mail.icloud.com resolves to 17.42.251.62, 17.56.9.31 and 17.57.152.5 among others, with 3 other IP addresses in total.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.42.251.62 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.56.9.31 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.57.152.5 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.57.154.33 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.57.155.25 IP addresses.

mx01.mail.icloud.com along with mx02.mail.icloud.com each resolve to 17.57.156.30 IP addresses.

blackcrust.com - robtex.com

blackcrust.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`blackcrust.com`

`com`