`mdprimer.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:10a4^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:d6da^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.16.164^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.214.218^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`jacob.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2ca2^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jacob.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a2^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jacob.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a2^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jacob.ns.cloudflare.com`
		A	108.162.195.162^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jacob.ns.cloudflare.com`
		A	162.159.44.162^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jacob.ns.cloudflare.com`
		A	172.64.35.162^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jacob.ns.cloudflare.com`
NS	`vera.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a93^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c093^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vera.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2093^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vera.ns.cloudflare.com`
		A	108.162.192.147^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	172.64.32.147^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
		A	173.245.58.147^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vera.ns.cloudflare.com`
MX	`mdprimer-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c942::^{🇨🇦 Microsoft2a01:111:f000::/36}
			PTR	`mail-yt5pr01cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:c942::1^{🇨🇦 Microsoft2a01:111:f000::/36}
			PTR	`mail-yt3pr01cu00701.inbound.protection.outlook.com`
		A	2a01:111:f403:c942::3^{🇨🇦 Microsoft2a01:111:f000::/36}
			PTR	`mail-yt6pr01cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:c944::1^{🇨🇦 Microsoft2a01:111:f000::/36}
			PTR	`mail-yqzpr01cu01001.inbound.protection.outlook.com`
		A	52.101.190.1^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yt3pr01cu00701.inbound.protection.outlook.com`
		A	52.101.190.2^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yt3pr01cu00602.inbound.protection.outlook.com`
		A	52.101.190.3^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yt6pr01cu00103.inbound.protection.outlook.com`
		A	52.101.192.1^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yqzpr01cu01001.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.16.164, 172.67.214.218
		IPv6	2606:4700:3032::6815:10a4, 2606:4700:3034::ac43:d6da
SOA	`jacob.ns.cloudflare.com`dns@cloudflare.com serial=2395254563

`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=1774487777

Same first word

mdprimer.com

Similar names

primermd.com

dprimmer.com

DNS History

17 records (7 active, 10 former)

○NSdns1.cidc.telus.com2015-08-17 → 2016-12-31 · 4 obs

● 2015-08-17 22:01:14
● 2016-12-31 11:00:28
○ 2020-05-12 05:56:12
○ 2026-03-26 01:18:06

○NSdns2.cidc.telus.com2015-08-17 → 2016-12-31 · 4 obs

● 2015-08-17 22:01:14
● 2016-12-31 11:00:28
○ 2020-05-12 05:56:12
○ 2026-03-26 01:18:06

●NSjacob.ns.cloudflare.com2026-02-15 → 2026-03-26 · 3 obs

○ 2020-05-12 05:56:12
● 2026-02-15 05:56:40
● 2026-03-26 01:18:06

○NSns71.domaincontrol.com2020-05-12 → 2020-05-12 · 4 obs

○ 2016-12-31 11:00:28
● 2020-05-12 05:56:12
○ 2026-02-15 05:56:40
○ 2026-03-26 01:18:06

○NSns72.domaincontrol.com2020-05-12 → 2020-05-12 · 4 obs

○ 2016-12-31 11:00:28
● 2020-05-12 05:56:12
○ 2026-02-15 05:56:40
○ 2026-03-26 01:18:06

●NSvera.ns.cloudflare.com2026-02-15 → 2026-03-26 · 3 obs

○ 2020-05-12 05:56:12
● 2026-02-15 05:56:40
● 2026-03-26 01:18:06

●MXmdprimer-com.mail.protection.outlook.com2015-08-17 → 2026-03-26 · 2 obs

● 2015-08-17 22:01:14
● 2026-03-26 01:18:06

●A104.21.16.1642026-02-15 → 2026-03-26 · 5 obs

○ 2020-05-12 05:56:12
● 2026-02-15 05:56:40
● 2026-02-22 16:41:20
○ 2026-02-28 16:12:54
● 2026-03-26 01:18:06

●A172.67.214.2182026-02-15 → 2026-03-26 · 5 obs

○ 2020-05-12 05:56:12
● 2026-02-15 05:56:40
● 2026-02-22 16:41:20
○ 2026-02-28 16:12:54
● 2026-03-26 01:18:06

○A188.114.96.02026-02-28 → 2026-02-28 · 3 obs

○ 2026-02-22 16:41:20
● 2026-02-28 16:12:54
○ 2026-03-26 01:18:06

○A188.114.97.02026-02-28 → 2026-02-28 · 3 obs

○ 2026-02-22 16:41:20
● 2026-02-28 16:12:54
○ 2026-03-26 01:18:06

○A207.164.142.582020-05-12 → 2020-05-12 · 4 obs

○ 2016-12-31 11:00:28
● 2020-05-12 05:56:12
○ 2026-02-15 05:56:40
○ 2026-03-26 01:18:06

○A207.219.168.2522015-08-17 → 2016-12-31 · 4 obs

● 2015-08-17 22:01:14
● 2016-12-31 11:00:28
○ 2020-05-12 05:56:12
○ 2026-03-26 01:18:06

●A2606:4700:3032::6815:10a42026-02-15 → 2026-03-26 · 5 obs

○ 2020-05-12 05:56:12
● 2026-02-15 05:56:40
● 2026-02-22 16:41:20
○ 2026-02-28 16:12:54
● 2026-03-26 01:18:06

●A2606:4700:3034::ac43:d6da2026-02-15 → 2026-03-26 · 5 obs

○ 2020-05-12 05:56:12
● 2026-02-15 05:56:40
● 2026-02-22 16:41:20
○ 2026-02-28 16:12:54
● 2026-03-26 01:18:06

○A2a06:98c1:3120::2026-02-28 → 2026-02-28 · 3 obs

○ 2026-02-22 16:41:20
● 2026-02-28 16:12:54
○ 2026-03-26 01:18:06

○A2a06:98c1:3121::2026-02-28 → 2026-02-28 · 3 obs

○ 2026-02-22 16:41:20
● 2026-02-28 16:12:54
○ 2026-03-26 01:18:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mdprimer.com	vera.ns.cloudflare.com, jacob.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.162

NS records: vera.ns.cloudflare.com, jacob.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mdprimer.com (unsigned zone)

⏱️ Timing

Total: 189ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.214.218, 104.21.16.164`
AAAA	2	`2606:4700:3034::ac43:d6da, 2606:4700:3032::6815:10a4`
NS	2	`jacob.ns.cloudflare.com, vera.ns.cloudflare.com`
MX	1	`mdprimer-com.mail.protection.outlook.com`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`jacob.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mdprimer.com maps to four IP numbers: 2606:4700:3032::6815:10a4, 2606:4700:3034::ac43:d6da, 104.21.16.164 and 172.67.214.218.

Other host names, for instance rafhornchurch.com, infloso.com, benhvienaau.vn, seeker-portal.app and fullprintuy.com share IP numbers with mdprimer.com.

Name Servers

Two name servers jacob.ns.cloudflare.com and vera.ns.cloudflare.com handle delegation for mdprimer.com.

mdprimer.com uses the same name server setup as other domains, for example keepingitunderwraps.com, icpdhm.com, components-house.pt, juju.nz and components-house.fr.

mdprimer.com partially shares name servers with other domains; examples include wesell.ro, bonoro.com, 1x24.net, middleeastcareers.com and christy.co.uk.

These name servers are often used with the name servers adelaide.ns.cloudflare.com and dawn.ns.cloudflare.com.

Host names with six IP numbers: jacob.ns.cloudflare.com points to: 2606:4700:58::a29f:2ca2, 2803:f800:50::6ca2:c3a2, 2a06:98c1:50::ac40:23a2, 108.162.195.162, 162.159.44.162 and 172.64.35.162; vera.ns.cloudflare.com points to: 2606:4700:50::adf5:3a93, 2803:f800:50::6ca2:c093, 2a06:98c1:50::ac40:2093, 108.162.192.147, 172.64.32.147 and 173.245.58.147.

Mail Servers

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

Hostname mdprimer-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c942::, 2a01:111:f403:c942::1, 2a01:111:f403:c942::3, 2a01:111:f403:c944::1, 52.101.190.1, 52.101.190.2, 52.101.190.3 and 52.101.192.1.

mdprimer.com - robtex.com

mdprimer.com

com

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`mdprimer.com`

`com`