masterdoctors.com - dns.ninja

`masterdoctors.com`

DNSSEC	⚠️ Not signed
NS	`jack.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b79^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c179^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jack.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2179^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jack.ns.cloudflare.com`
		A	108.162.193.121^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	172.64.33.121^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
		A	173.245.59.121^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jack.ns.cloudflare.com`
NS	`jo.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aac^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0ac^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20ac^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jo.ns.cloudflare.com`
		A	108.162.192.172^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	172.64.32.172^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
		A	173.245.58.172^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jo.ns.cloudflare.com`
SOA	`jack.ns.cloudflare.com`dns@cloudflare.com serial=2405902562

`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=1781353298

Same first word

masterdoctors.com

Similar names

streamdoctors.com

doctorstreams.com

doctormasters.com

DNS History

12 records (2 active, 10 former)

●NSjack.ns.cloudflare.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-02-14 02:01:30
● 2026-02-17 18:50:04
● 2026-06-13 12:48:22

●NSjo.ns.cloudflare.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-02-14 02:01:30
● 2026-02-17 18:50:04
● 2026-06-13 12:48:22

○NSns1.p01.dynect.net2017-02-14 → 2017-02-14 · 4 obs

○ 2016-04-30 19:01:54
● 2017-02-14 02:01:30
○ 2026-02-17 18:50:04
○ 2026-06-13 12:48:22

○NSns2.p01.dynect.net2017-02-14 → 2017-02-14 · 4 obs

○ 2016-04-30 19:01:54
● 2017-02-14 02:01:30
○ 2026-02-17 18:50:04
○ 2026-06-13 12:48:22

○NSns29.domaincontrol.com2015-05-29 → 2016-04-30 · 4 obs

● 2015-05-29 04:27:54
● 2016-04-30 19:01:54
○ 2017-02-14 02:01:30
○ 2026-06-13 12:48:22

○NSns3.p01.dynect.net2017-02-14 → 2017-02-14 · 4 obs

○ 2016-04-30 19:01:54
● 2017-02-14 02:01:30
○ 2026-02-17 18:50:04
○ 2026-06-13 12:48:22

○NSns30.domaincontrol.com2015-05-29 → 2016-04-30 · 4 obs

● 2015-05-29 04:27:54
● 2016-04-30 19:01:54
○ 2017-02-14 02:01:30
○ 2026-06-13 12:48:22

○NSns4.p01.dynect.net2017-02-14 → 2017-02-14 · 4 obs

○ 2016-04-30 19:01:54
● 2017-02-14 02:01:30
○ 2026-02-17 18:50:04
○ 2026-06-13 12:48:22

○MXmailstore1.secureserver.net2015-05-29 → 2016-04-30 · 4 obs

● 2015-05-29 04:27:54
● 2016-04-30 19:01:54
○ 2017-02-14 02:01:30
○ 2026-06-13 12:48:22

○MXsmtp.secureserver.net2015-05-29 → 2016-04-30 · 4 obs

● 2015-05-29 04:27:54
● 2016-04-30 19:01:54
○ 2017-02-14 02:01:30
○ 2026-06-13 12:48:22

○A50.63.202.182015-05-29 → 2016-04-30 · 4 obs

● 2015-05-29 04:27:54
● 2016-04-30 19:01:54
○ 2017-02-14 02:01:30
○ 2026-06-13 12:48:22

○A73.9.63.2012017-02-14 → 2017-02-14 · 4 obs

○ 2016-04-30 19:01:54
● 2017-02-14 02:01:30
○ 2026-02-17 18:50:04
○ 2026-06-13 12:48:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net...	-
masterdoctors.com	jack.ns.cloudflare.com, jo.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.172

NS records: jack.ns.cloudflare.com, jo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masterdoctors.com (unsigned zone)

⏱️ Timing

Total: 75ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`jack.ns.cloudflare.com, jo.ns.cloudflare.com`
SOA	1	`jack.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Name Servers

DNS delegation for masterdoctors.com points to two name servers: jack.ns.cloudflare.com and jo.ns.cloudflare.com.

The name server configuration of masterdoctors.com is shared with other domains, for instance amexevent.com.tw, mypublisher24.com, d8net.top and two others.

masterdoctors.com shares at least some of its name servers with other domains, including santamariaschool.org, xn--skatterdgivning-nlb.dk, martialart.in and two others.

These name servers are frequently seen alongside the name servers mark.ns.cloudflare.com.

Hosts with 6 IP addresses each:

jack.ns.cloudflare.com has IP addresses 108.162.193.121, 172.64.33.121 and 173.245.59.121, plus 3 other.

jo.ns.cloudflare.com has IP addresses 108.162.192.172, 172.64.32.172 and 173.245.58.172, plus 3 other.