mdprimer.com - dns.ninja

`mdprimer.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:10a4^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:d6da^{🇺🇸 Cloudflare2606:4700:3035::/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::3^{🇨🇦 Microsoft2a01:111:f000::/36}
			PTR	`mail-yt6pr01cu00103.inbound.protection.outlook.com`
		A	2a01:111:f403:c944::^{🇨🇦 Microsoft2a01:111:f000::/36}
			PTR	`mail-yqzpr01cu00900.inbound.protection.outlook.com`
		A	2a01:111:f403:c944::1^{🇨🇦 Microsoft2a01:111:f000::/36}
			PTR	`mail-yqzpr01cu01001.inbound.protection.outlook.com`
		A	52.101.190.0^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yt5pr01cu00100.inbound.protection.outlook.com`
		A	52.101.190.2^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yt3pr01cu00602.inbound.protection.outlook.com`
		A	52.101.192.0^{🇨🇦 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-yqzpr01cu00900.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 hints	104.21.16.164, 172.67.214.218
		IPv6 hints	2606:4700:3035::6815:10a4, 2606:4700:3035::ac43:d6da
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=245, name=cloudflare-ech.com
SOA	`jacob.ns.cloudflare.com`dns@cloudflare.com serial=2410565820

`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=1786562454

Same first word

mdprimer.com

Similar names

primermd.com

dprimmer.com

DNS History

19 records (7 active, 12 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
○ 2026-08-12 19:50:38

○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
○ 2026-08-12 19:50:38

●NSjacob.ns.cloudflare.com2026-02-15 → 2026-08-12 · 3 obs

○ 2020-05-12 05:56:12
● 2026-02-15 05:56:40
● 2026-08-12 19:50:38

○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
○ 2026-08-12 19:50:38

○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
○ 2026-08-12 19:50:38

●NSvera.ns.cloudflare.com2026-02-15 → 2026-08-12 · 3 obs

○ 2020-05-12 05:56:12
● 2026-02-15 05:56:40
● 2026-08-12 19:50:38

●MXmdprimer-com.mail.protection.outlook.com2015-08-17 → 2026-08-12 · 2 obs

● 2015-08-17 22:01:14
● 2026-08-12 19:50:38

●A104.21.16.1642026-02-15 → 2026-08-12 · 11 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
○ 2026-03-28 03:13:30
● 2026-04-25 01:12:06
● 2026-05-20 03:54:26
○ 2026-06-19 13:18:02
● 2026-07-09 22:11:10
● 2026-08-12 19:50:38

●A172.67.214.2182026-02-15 → 2026-08-12 · 11 obs

○A188.114.96.02026-02-28 → 2026-06-19 · 9 obs

○ 2026-02-22 16:41:20
● 2026-02-28 16:12:54
○ 2026-03-26 01:18:06
● 2026-03-28 03:13:30
○ 2026-04-25 01:12:06
○ 2026-05-20 03:54:26
● 2026-06-19 13:18:02
○ 2026-07-09 22:11:10
○ 2026-08-12 19:50:38

○A188.114.97.02026-02-28 → 2026-06-19 · 9 obs

○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
○ 2026-08-12 19:50:38

○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
○ 2026-08-12 19:50:38

○A2606:4700:3032::6815:10a42026-02-15 → 2026-05-20 · 10 obs

○A2606:4700:3034::ac43:d6da2026-02-15 → 2026-05-20 · 10 obs

●A2606:4700:3035::6815:10a42026-07-09 → 2026-08-12 · 3 obs

○ 2026-06-19 13:18:02
● 2026-07-09 22:11:10
● 2026-08-12 19:50:38

●A2606:4700:3035::ac43:d6da2026-07-09 → 2026-08-12 · 3 obs

○ 2026-06-19 13:18:02
● 2026-07-09 22:11:10
● 2026-08-12 19:50:38

○A2a06:98c1:3120::2026-02-28 → 2026-06-19 · 9 obs

○A2a06:98c1:3121::2026-02-28 → 2026-06-19 · 9 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, j.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net...	-
mdprimer.com	vera.ns.cloudflare.com, jacob.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.147

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: 226ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.214.218, 104.21.16.164`
AAAA	2	`2606:4700:3035::ac43:d6da, 2606:4700:3035::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 has four IP addresses: 104.21.16.164, 172.67.214.218, 2606:4700:3035::6815:10a4 and 2606:4700:3035::ac43:d6da.

www.anzwers.co.nz, rafhornchurch.com, infloso.com plus two other host names have IP numbers in common with mdprimer.com.

Name Servers

mdprimer.com uses two name servers for its delegation: jacob.ns.cloudflare.com and vera.ns.cloudflare.com.

The name server configuration of mdprimer.com is shared with other domains, for instance alteraelectronics.com, keepingitunderwraps.com, icpdhm.com and two others.

mdprimer.com has at least partial name server overlap with other domains, such as wesell.ro, bonoro.com, 1x24.net and two others.

It is common to find these name servers paired with the name servers ken.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname jacob.ns.cloudflare.com directs to 108.162.195.162, 162.159.44.162 and 172.64.35.162 along with 3 other IP addresses.

Hostname vera.ns.cloudflare.com directs to 108.162.192.147, 172.64.32.147 and 173.245.58.147 along with 3 other IP addresses.

Mail Servers

mdprimer.com uses one mail server — mdprimer-com.mail.protection.outlook.com.

mdprimer-com.mail.protection.outlook.com has 8 IP addresses: 52.101.190.0, 52.101.190.2, 52.101.192.0 plus 5 more.