`markblackcpa.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:afdd^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:537f^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.127^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.175.221^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jerome.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3bb5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jerome.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1b5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jerome.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21b5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jerome.ns.cloudflare.com`
		A	108.162.193.181^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jerome.ns.cloudflare.com`
		A	172.64.33.181^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jerome.ns.cloudflare.com`
		A	173.245.59.181^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jerome.ns.cloudflare.com`
NS	`teresa.ns.cloudflare.com`
		A	2606:4700:50::a29f:26d8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`teresa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2d8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`teresa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22d8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`teresa.ns.cloudflare.com`
		A	108.162.194.216^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`teresa.ns.cloudflare.com`
		A	162.159.38.216^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`teresa.ns.cloudflare.com`
		A	172.64.34.216^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`teresa.ns.cloudflare.com`
MX	`markblackcpa-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c902::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj2pr05cu00300.inbound.protection.outlook.com`
		A	2a01:111:f403:c922::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl0pr02cu00702.inbound.protection.outlook.com`
		A	2a01:111:f403:c92c::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr04cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:f905::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm5pr02cu00203.inbound.protection.outlook.com`
		A	52.101.8.51^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dm1pr04cu00203.inbound.protection.outlook.com`
		A	52.101.42.16^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-co1pr05cu00300.inbound.protection.outlook.com`
		A	52.101.194.3^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch1pr04cu00103.inbound.protection.outlook.com`
		A	52.101.194.15^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch4pr21cu00107.inbound.protection.outlook.com`
TXT	`MS=ms48108487`
TXT	`v=spf1 include:spf.protection.outlook.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.83.127, 172.67.175.221
		IPv6	2606:4700:3031::ac43:afdd, 2606:4700:3037::6815:537f
SOA	`jerome.ns.cloudflare.com`dns@cloudflare.com serial=2396808813

`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=1774576977

Subdomains

gw.markblackcpa.com

Same first word

markblackcpa.com

DNS History

15 records (7 active, 8 former)

●NSjerome.ns.cloudflare.com2026-03-01 → 2026-03-27 · 3 obs

○ 2017-04-11 04:11:34
● 2026-03-01 16:49:26
● 2026-03-27 02:06:06

○NSns1.mydyndns.org2015-05-27 → 2017-04-11 · 4 obs

● 2015-05-27 04:58:34
● 2017-04-11 04:11:34
○ 2026-03-01 16:49:26
○ 2026-03-27 02:06:06

○NSns1189.dns.dyn.com2015-05-27 → 2017-04-11 · 4 obs

● 2015-05-27 04:58:34
● 2017-04-11 04:11:34
○ 2026-03-01 16:49:26
○ 2026-03-27 02:06:06

○NSns2163.dns.dyn.com2015-05-27 → 2017-04-11 · 4 obs

● 2015-05-27 04:58:34
● 2017-04-11 04:11:34
○ 2026-03-01 16:49:26
○ 2026-03-27 02:06:06

○NSns3196.dns.dyn.com2015-05-27 → 2017-04-11 · 4 obs

● 2015-05-27 04:58:34
● 2017-04-11 04:11:34
○ 2026-03-01 16:49:26
○ 2026-03-27 02:06:06

○NSns4171.dns.dyn.com2015-05-27 → 2017-04-11 · 4 obs

● 2015-05-27 04:58:34
● 2017-04-11 04:11:34
○ 2026-03-01 16:49:26
○ 2026-03-27 02:06:06

●NSteresa.ns.cloudflare.com2026-03-01 → 2026-03-27 · 3 obs

○ 2017-04-11 04:11:34
● 2026-03-01 16:49:26
● 2026-03-27 02:06:06

○MXgw.markblackcpa.com2015-05-27 → 2015-12-19 · 4 obs

● 2015-05-27 04:58:34
● 2015-12-19 13:43:44
○ 2016-03-19 15:56:22
○ 2026-03-27 02:06:06

●MXmarkblackcpa-com.mail.protection.outlook.com2016-03-19 → 2026-03-27 · 3 obs

○ 2015-12-19 13:43:44
● 2016-03-19 15:56:22
● 2026-03-27 02:06:06

●A104.21.83.1272026-03-01 → 2026-03-27 · 3 obs

○ 2017-04-11 04:11:34
● 2026-03-01 16:49:26
● 2026-03-27 02:06:06

●A172.67.175.2212026-03-01 → 2026-03-27 · 3 obs

○ 2017-04-11 04:11:34
● 2026-03-01 16:49:26
● 2026-03-27 02:06:06

●A2606:4700:3031::ac43:afdd2026-03-01 → 2026-03-27 · 3 obs

○ 2017-04-11 04:11:34
● 2026-03-01 16:49:26
● 2026-03-27 02:06:06

●A2606:4700:3037::6815:537f2026-03-01 → 2026-03-27 · 3 obs

○ 2017-04-11 04:11:34
● 2026-03-01 16:49:26
● 2026-03-27 02:06:06

○A67.53.56.1262015-05-27 → 2017-04-11 · 4 obs

● 2015-05-27 04:58:34
● 2017-04-11 04:11:34
○ 2026-03-01 16:49:26
○ 2026-03-27 02:06:06

○PTRgw.markblackcpa.com2017-04-11 → 2017-04-11 · 3 obs

● 2017-04-11 04:11:34
○ 2026-03-01 16:49:26
○ 2026-03-27 02:06:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, k.gtld-servers.net...	-
markblackcpa.com	jerome.ns.cloudflare.com, teresa.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.216

NS records: jerome.ns.cloudflare.com, teresa.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for markblackcpa.com (unsigned zone)

⏱️ Timing

Total: 193ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.175.221, 104.21.83.127`
AAAA	2	`2606:4700:3037::6815:537f, 2606:4700:3031::ac43:afdd`
NS	2	`jerome.ns.cloudflare.com, teresa.ns.cloudflare.com`
MX	1	`markblackcpa-com.mail.protection.outlook`
TXT	2	`MS=ms48108487, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jerome.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

markblackcpa.com is the parent of gw.markblackcpa.com.

IP Addresses

Four IP numbers are pointed to by markblackcpa.com: 2606:4700:3031::ac43:afdd, 2606:4700:3037::6815:537f, 104.21.83.127 and 172.67.175.221.

other host names including yorkiespuppiessale.com, bolderlifestyle.com, vayururiwoainvestments.digital, qrcoba.org and www.(0x63616d6769726c)s.sx share IP numbers with markblackcpa.com.

Name Servers

markblackcpa.com is delegated to two name servers jerome.ns.cloudflare.com and teresa.ns.cloudflare.com.

markblackcpa.com shares the same name server setup as other domains, for instance discrd.co, dc.gg, starexlogistic.com, m-slam.com and tjcsm.com.

markblackcpa.com at least partially shares name servers with other domains, for instance coastharley.com, 88jackpot-official.solutions, istanbulesenyurtescort.com, sukaslot88.broker and subforsanta.org.

These name servers are commonly used alongside jason.ns.cloudflare.com and michelle.ns.cloudflare.com.

Host names with six IP numbers:

Host name jerome.ns.cloudflare.com points to: 2606:4700:58::adf5:3bb5, 2803:f800:50::6ca2:c1b5, 2a06:98c1:50::ac40:21b5, 108.162.193.181, 172.64.33.181 and 173.245.59.181.

Host name teresa.ns.cloudflare.com points to: 2606:4700:50::a29f:26d8, 2803:f800:50::6ca2:c2d8, 2a06:98c1:50::ac40:22d8, 108.162.194.216, 162.159.38.216 and 172.64.34.216.

Mail Servers

markblackcpa.com is handled by a single mail server, markblackcpa-com.mail.protection.outlook.com.

Host markblackcpa-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::, 2a01:111:f403:c922::2, 2a01:111:f403:c92c::3, 2a01:111:f403:f905::3, 52.101.8.51, 52.101.42.16, 52.101.194.3 and 52.101.194.15.

markblackcpa.com - robtex.com