`markdobbs.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:a038^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:5ac1^{🇺🇸 Cloudflare2606:4700:3037::/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	146.20.161.1^{🇺🇸 RACKSPACE-IAD146.20.0.0/16 Rackspace US Inc}
			PTR	`mx1.emailsrvr.com`
MX	`mx2.emailsrvr.com`⁽²⁰⁾
		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	104.21.90.193, 172.67.160.56
		IPv6	2606:4700:3032::ac43:a038, 2606:4700:3037::6815:5ac1
SOA	`derek.ns.cloudflare.com`dns@cloudflare.com serial=2399210108

`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=1771291435

Subdomains

ns1.markdobbs.com

Same first word

markdobbs.com

DNS History

20 records (8 active, 12 former)

●NSderek.ns.cloudflare.com2017-02-19 → 2026-03-23 · 3 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
● 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

●NSuma.ns.cloudflare.com2017-02-19 → 2026-03-23 · 3 obs

○ 2016-06-30 16:11:32
● 2017-02-19 14:21:52
● 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

●MXmx1.emailsrvr.com2026-03-21 → 2026-03-23 · 3 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-23 23:22:18

●MXmx2.emailsrvr.com2026-03-21 → 2026-03-23 · 3 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

●A104.21.90.1932026-03-21 → 2026-03-23 · 3 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

●A172.67.160.562026-03-21 → 2026-03-23 · 3 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

○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
○ 2026-03-23 23:22:18

●A2606:4700:3032::ac43:a0382026-03-21 → 2026-03-23 · 3 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-23 23:22:18

●A2606:4700:3037::6815:5ac12026-03-21 → 2026-03-23 · 3 obs

○ 2017-02-19 14:21:52
● 2026-03-21 05:54:20
● 2026-03-23 23:22:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net...	-
markdobbs.com	uma.ns.cloudflare.com, derek.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.154

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: 260ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.160.56, 104.21.90.193`
AAAA	2	`2606:4700:3032::ac43:a038, 2606:4700:3037::6815:5ac1`
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 is the parent of ns1.markdobbs.com.

IP Addresses

markdobbs.com points to four IP numbers: 2606:4700:3032::ac43:a038, 2606:4700:3037::6815:5ac1, 104.21.90.193 and 172.67.160.56.

Other host names including veterinariargentina.com, www.veterinariargentina.com, www.iltuohosting.it, yuyao6.com and www.t-skirt.ru share IP numbers with markdobbs.com.

Name Servers

markdobbs.com's delegation uses two name servers, derek.ns.cloudflare.com and uma.ns.cloudflare.com.

markdobbs.com shares the same name server setup as other domains, for example hijjab.com, moonray.ws, lakeshore-media.com, lamate.com.tw and brokenteeth.com.

markdobbs.com at least partially shares name servers with other domains, including solarheim.com, petsclip.com, malcolmbrothers.com, deguddewellen.lu and ehsaastrust.org.

These name servers are often used together with donovan.ns.cloudflare.com.

Host names with six IP numbers:

derek.ns.cloudflare.com points to: 2606:4700:58::adf5:3b9a, 2803:f800:50::6ca2:c19a, 2a06:98c1:50::ac40:219a, 108.162.193.154, 172.64.33.154 and 173.245.59.154.

uma.ns.cloudflare.com points to: 2606:4700:50::adf5:3a92, 2803:f800:50::6ca2:c092, 2a06:98c1:50::ac40:2092, 108.162.192.146, 172.64.32.146 and 173.245.58.146.

Mail Servers

markdobbs.com is handled by two mail servers: mx1.emailsrvr.com and mx2.emailsrvr.com.

markdobbs.com shares its mail server setup with other domains, including actasports.com, cashlegend.com, andecon.com.br, alphapca.com and answertree.org.

markdobbs.com shares some mail servers with other domains, for instance ahs-us.com, ns.greatwineonline.co.uk, lancastermotor.com and knowmoregrowmore.com.

Host names with a single IP:

mx1.emailsrvr.com points to 146.20.161.1.

mx2.emailsrvr.com points to 184.106.54.2.

markdobbs.com - robtex.com

markdobbs.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`markdobbs.com`

`com`