markdobbs.com - dns.ninja

`markdobbs.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::6815:5ac1^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:a038^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.90.193^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.160.56^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`derek.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b9a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`derek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`derek.ns.cloudflare.com`
		A	108.162.193.154^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	172.64.33.154^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
		A	173.245.59.154^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`derek.ns.cloudflare.com`
NS	`uma.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a92^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`uma.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c092^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`uma.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2092^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`uma.ns.cloudflare.com`
		A	108.162.192.146^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`uma.ns.cloudflare.com`
		A	172.64.32.146^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`uma.ns.cloudflare.com`
		A	173.245.58.146^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`uma.ns.cloudflare.com`
MX	`mx1.emailsrvr.com` ⭐
		A	184.106.54.1^{🇺🇸 RACKSPACE-ORD184.106.54.0/24 Rackspace ORD}
			PTR	`mx1.emailsrvr.com`
MX	`mx2.emailsrvr.com`⁽²⁰⁾
		A	108.166.43.2^{🇺🇸 RACKSPACE-ORD108.166.0.0/18 Rackspace}
			PTR	`mx2.emailsrvr.com`
		A	146.20.161.2^{🇺🇸 RACKSPACE-IAD146.20.0.0/16 Rackspace US Inc}
			PTR	`mx2.emailsrvr.com`
		A	173.203.187.2^{🇺🇸 RACKSPACE-IAD173.203.128.0/18 Rackspace Managed Hosting, 9725 Data point drive, Suite 100, San Antonio, TX 78229}
			PTR	`mx2.emailsrvr.com`
		A	184.106.54.2^{🇺🇸 RACKSPACE-ORD184.106.54.0/24 Rackspace ORD}
			PTR	`mx2.emailsrvr.com`
TXT	`v=spf1 include:emailsrvr.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.90.193, 172.67.160.56
		IPv6 hints	2606:4700:3034::6815:5ac1, 2606:4700:3034::ac43:a038
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=17, name=cloudflare-ech.com
SOA	`derek.ns.cloudflare.com`dns@cloudflare.com serial=2410919767

`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=1786154954

Subdomains

mail.markdobbs.com

ns1.markdobbs.com

Same first word

markdobbs.com

DNS History

26 records (8 active, 18 former)

●NSderek.ns.cloudflare.com2017-02-19 → 2026-08-08 · 3 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
● 2026-08-08 02:25:18

○NSns1.markdobbs.com2015-08-08 → 2016-06-30 · 4 obs

● 2015-08-08 12:53:48
● 2016-06-30 16:11:32
○ 2017-02-19 14:21:52
○ 2026-08-08 02:25:18

○NSns2.markdobbs.com2015-08-08 → 2016-06-30 · 4 obs

● 2015-08-08 12:53:48
● 2016-06-30 16:11:32
○ 2017-02-19 14:21:52
○ 2026-08-08 02:25:18

●NSuma.ns.cloudflare.com2017-02-19 → 2026-08-08 · 3 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
● 2026-08-08 02:25:18

○MXaristotle.mx25.net2017-02-19 → 2017-02-19 · 4 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
○ 2026-03-21 05:54:20
○ 2026-08-08 02:25:18

○MXmail.markdobbs.com2015-08-08 → 2016-06-30 · 4 obs

● 2015-08-08 12:53:48
● 2016-06-30 16:11:32
○ 2017-02-19 14:21:52
○ 2026-08-08 02:25:18

●MXmx1.emailsrvr.com2026-03-21 → 2026-08-08 · 3 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-08-08 02:25:18

●MXmx2.emailsrvr.com2026-03-21 → 2026-08-08 · 3 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-08-08 02:25:18

○MXplato.mx25.net2017-02-19 → 2017-02-19 · 4 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
○ 2026-03-21 05:54:20
○ 2026-08-08 02:25:18

○MXsocrates.mx25.net2017-02-19 → 2017-02-19 · 4 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
○ 2026-03-21 05:54:20
○ 2026-08-08 02:25:18

○MXzeno.mx25.net2017-02-19 → 2017-02-19 · 4 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
○ 2026-03-21 05:54:20
○ 2026-08-08 02:25:18

●A104.21.90.1932026-03-21 → 2026-08-08 · 6 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-24 22:57:28
○ 2026-03-25 11:39:04
● 2026-04-03 01:47:34
● 2026-08-08 02:25:18

○A104.27.182.2412017-02-19 → 2017-02-19 · 4 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
○ 2026-03-21 05:54:20
○ 2026-08-08 02:25:18

○A104.27.183.2412017-02-19 → 2017-02-19 · 4 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
○ 2026-03-21 05:54:20
○ 2026-08-08 02:25:18

○A162.243.69.1292015-08-08 → 2016-06-30 · 4 obs

● 2015-08-08 12:53:48
● 2016-06-30 16:11:32
○ 2017-02-19 14:21:52
○ 2026-08-08 02:25:18

●A172.67.160.562026-03-21 → 2026-08-08 · 6 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-24 22:57:28
○ 2026-03-25 11:39:04
● 2026-04-03 01:47:34
● 2026-08-08 02:25:18

○A188.114.96.02026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-24 22:57:28
● 2026-03-25 11:39:04
○ 2026-04-03 01:47:34
○ 2026-08-08 02:25:18

○A188.114.97.02026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-24 22:57:28
● 2026-03-25 11:39:04
○ 2026-04-03 01:47:34
○ 2026-08-08 02:25:18

○A2400:cb00:2048:1::681b:b6f12017-02-19 → 2017-02-19 · 4 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
○ 2026-03-21 05:54:20
○ 2026-08-08 02:25:18

○A2400:cb00:2048:1::681b:b7f12017-02-19 → 2017-02-19 · 4 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
○ 2026-03-21 05:54:20
○ 2026-08-08 02:25:18

○A2606:4700:3032::ac43:a0382026-03-21 → 2026-04-03 · 6 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-24 22:57:28
○ 2026-03-25 11:39:04
● 2026-04-03 01:47:34
○ 2026-08-08 02:25:18

●A2606:4700:3034::6815:5ac12026-08-08 → 2026-08-08 · 2 obs

○ 2026-04-03 01:47:34
● 2026-08-08 02:25:18

●A2606:4700:3034::ac43:a0382026-08-08 → 2026-08-08 · 2 obs

○ 2026-04-03 01:47:34
● 2026-08-08 02:25:18

○A2606:4700:3037::6815:5ac12026-03-21 → 2026-04-03 · 6 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-24 22:57:28
○ 2026-03-25 11:39:04
● 2026-04-03 01:47:34
○ 2026-08-08 02:25:18

○A2a06:98c1:3120::2026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-24 22:57:28
● 2026-03-25 11:39:04
○ 2026-04-03 01:47:34
○ 2026-08-08 02:25:18

○A2a06:98c1:3121::2026-03-25 → 2026-03-25 · 4 obs

○ 2026-03-24 22:57:28
● 2026-03-25 11:39:04
○ 2026-04-03 01:47:34
○ 2026-08-08 02:25:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
markdobbs.com	uma.ns.cloudflare.com, derek.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:172.64.33.154

NS records: uma.ns.cloudflare.com, derek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for markdobbs.com (unsigned zone)

⏱️ Timing

Total: 247ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.160.56, 104.21.90.193`
AAAA	2	`2606:4700:3034::6815:5ac1, 2606:4700:3034::ac43:a038`
NS	2	`derek.ns.cloudflare.com, uma.ns.cloudflare.com`
MX	2	`mx1.emailsrvr.com (pri: 10), mx2.emailsrvr.com (pri: 20)`
TXT	1	`v=spf1 include:emailsrvr.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`derek.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

markdobbs.com serves as the parent of mail.markdobbs.com and ns1.markdobbs.com.

IP Addresses

markdobbs.com resolves to four IP addresses: 104.21.90.193, 172.67.160.56, 2606:4700:3034::6815:5ac1 and 2606:4700:3034::ac43:a038.

storage-dev.medialib.dev, offertefarmaciaguglini.it, joka-online-casino-login.com plus two other host names have IP numbers in common with markdobbs.com.

Name Servers

DNS delegation for markdobbs.com points to two name servers: derek.ns.cloudflare.com and uma.ns.cloudflare.com.

The name server configuration of markdobbs.com is shared with other domains, for instance hijjab.com, tofoli.com.br, carolinassportshub.com and two others.

markdobbs.com partially shares its NS delegation with several other domains, including cives.de, solarheim.com, petsclip.com and two others.

Hosts with 6 IP addresses each:

derek.ns.cloudflare.com has IP addresses 108.162.193.154, 172.64.33.154 and 173.245.59.154, plus 3 other.

uma.ns.cloudflare.com has IP addresses 108.162.192.146, 172.64.32.146 and 173.245.58.146, plus 3 other.

Mail Servers

markdobbs.com uses two mail servers, mx1.emailsrvr.com and mx2.emailsrvr.com.

The mail server setup of markdobbs.com matches that of other domains such as actasports.com, cashlegend.com, alphapca.com and two others.

The MX records for markdobbs.com are at least partially shared with other domains, such as ahs-us.com, ns.greatwineonline.co.uk, lancastermotor.com and knowmoregrowmore.com.

Host names with four IP addresses:

mx2.emailsrvr.com maps to the following IP addresses: 108.166.43.2, 146.20.161.2, 173.203.187.2 and 184.106.54.2.

Host names resolving to a single IP address:

mx1.emailsrvr.com directs to 184.106.54.1.