contentstrategycourse.com - dns.ninja

contentstrategycourse.com

DNSSEC⚠️ Not signed
A2606:4700:3036::ac43:c9af🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:1607🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.22.7Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.201.175🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSaurora.ns.cloudflare.com ⭐
A2606:4700:50::a29f:266e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaurora.ns.cloudflare.com
A2803:f800:50::6ca2:c26e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRaurora.ns.cloudflare.com
A2a06:98c1:50::ac40:226e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRaurora.ns.cloudflare.com
A108.162.194.110🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaurora.ns.cloudflare.com
A162.159.38.110Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaurora.ns.cloudflare.com
A172.64.34.110🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRaurora.ns.cloudflare.com
NSclyde.ns.cloudflare.com
A2606:4700:58::adf5:3b5b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRclyde.ns.cloudflare.com
A2803:f800:50::6ca2:c15b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRclyde.ns.cloudflare.com
A2a06:98c1:50::ac40:215b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRclyde.ns.cloudflare.com
A108.162.193.91🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRclyde.ns.cloudflare.com
A172.64.33.91🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRclyde.ns.cloudflare.com
A173.245.59.91🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRclyde.ns.cloudflare.com
MXmx.stackmail.com ⭐
A185.151.28.67🇬🇧 TWENTYI185.151.28.0/24
PTRmx.stackmail.com
TXTv=spf1 include:spf.stackmail.com a mx -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.22.7, 172.67.201.175
IPv6 hints2606:4700:3036::ac43:c9af, 2606:4700:3037::6815:1607
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=217, name=cloudflare-ech.com
SOAaurora.ns.cloudflare.comdns@cloudflare.com serial=2409517246

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786546359

Same first word

contentstrategycourse.com

DNS History

20 records (7 active, 13 former)

2017201820192020202120222023202420252026NSaurora.ns.cloudflare.comclyde.ns.cloudflare.comdane.ns.cloudflare.comlily.ns.cloudflare.comns07.domaincontrol.comns08.domaincontrol.comMXmx.stackmail.commailstore1.secureserver.netsmtp.secureserver.netA104.21.22.7172.67.201.1752606:4700:3036::ac43:c9af2606:4700:3037::6815:1607104.27.152.131104.27.153.1312400:cb00:2048:1::681b:98832400:cb00:2048:1::681b:99832606:4700:3030::6815:16072606:4700:3037::ac43:c9af50.63.202.56
●NSaurora.ns.cloudflare.com2026-03-12 → 2026-08-12 · 3 obs
○ 2017-06-24 12:41:06
● 2026-03-12 20:09:10
● 2026-08-12 14:58:32
●NSclyde.ns.cloudflare.com2026-03-12 → 2026-08-12 · 3 obs
○ 2017-06-24 12:41:06
● 2026-03-12 20:09:10
● 2026-08-12 14:58:32
○NSdane.ns.cloudflare.com2017-06-24 → 2017-06-24 · 4 obs
○ 2016-12-14 17:31:08
● 2017-06-24 12:41:06
○ 2026-03-12 20:09:10
○ 2026-08-12 14:58:32
○NSlily.ns.cloudflare.com2017-06-24 → 2017-06-24 · 4 obs
○ 2016-12-14 17:31:08
● 2017-06-24 12:41:06
○ 2026-03-12 20:09:10
○ 2026-08-12 14:58:32
○NSns07.domaincontrol.com2016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 17:31:08
○ 2017-06-24 12:41:06
○ 2026-08-12 14:58:32
○NSns08.domaincontrol.com2016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 17:31:08
○ 2017-06-24 12:41:06
○ 2026-08-12 14:58:32
○MXmailstore1.secureserver.net2016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 17:31:08
○ 2017-06-24 12:41:06
○ 2026-08-12 14:58:32
●MXmx.stackmail.com2026-03-12 → 2026-08-12 · 3 obs
○ 2017-06-24 12:41:06
● 2026-03-12 20:09:10
● 2026-08-12 14:58:32
○MXsmtp.secureserver.net2016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 17:31:08
○ 2017-06-24 12:41:06
○ 2026-08-12 14:58:32
●A104.21.22.72026-03-12 → 2026-08-12 · 3 obs
○ 2017-06-24 12:41:06
● 2026-03-12 20:09:10
● 2026-08-12 14:58:32
○A104.27.152.1312017-06-24 → 2017-06-24 · 4 obs
○ 2016-12-14 17:31:08
● 2017-06-24 12:41:06
○ 2026-03-12 20:09:10
○ 2026-08-12 14:58:32
○A104.27.153.1312017-06-24 → 2017-06-24 · 4 obs
○ 2016-12-14 17:31:08
● 2017-06-24 12:41:06
○ 2026-03-12 20:09:10
○ 2026-08-12 14:58:32
●A172.67.201.1752026-03-12 → 2026-08-12 · 3 obs
○ 2017-06-24 12:41:06
● 2026-03-12 20:09:10
● 2026-08-12 14:58:32
○A2400:cb00:2048:1::681b:98832017-06-24 → 2017-06-24 · 4 obs
○ 2016-12-14 17:31:08
● 2017-06-24 12:41:06
○ 2026-03-12 20:09:10
○ 2026-08-12 14:58:32
○A2400:cb00:2048:1::681b:99832017-06-24 → 2017-06-24 · 4 obs
○ 2016-12-14 17:31:08
● 2017-06-24 12:41:06
○ 2026-03-12 20:09:10
○ 2026-08-12 14:58:32
○A2606:4700:3030::6815:16072026-03-12 → 2026-03-12 · 4 obs
○ 2017-06-24 12:41:06
● 2026-03-12 20:09:10
○ 2026-07-02 15:18:08
○ 2026-08-12 14:58:32
●A2606:4700:3036::ac43:c9af2026-07-02 → 2026-08-12 · 3 obs
○ 2026-03-12 20:09:10
● 2026-07-02 15:18:08
● 2026-08-12 14:58:32
●A2606:4700:3037::6815:16072026-07-02 → 2026-08-12 · 3 obs
○ 2026-03-12 20:09:10
● 2026-07-02 15:18:08
● 2026-08-12 14:58:32
○A2606:4700:3037::ac43:c9af2026-03-12 → 2026-03-12 · 4 obs
○ 2017-06-24 12:41:06
● 2026-03-12 20:09:10
○ 2026-07-02 15:18:08
○ 2026-08-12 14:58:32
○A50.63.202.562016-12-14 → 2016-12-14 · 3 obs
● 2016-12-14 17:31:08
○ 2017-06-24 12:41:06
○ 2026-08-12 14:58:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comb.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net...-
contentstrategycourse.comclyde.ns.cloudflare.com, aurora.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.91

NS records: clyde.ns.cloudflare.com, aurora.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for contentstrategycourse.com (unsigned zone)

⏱️ Timing

Total: 357ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.201.175, 104.21.22.7
AAAA22606:4700:3037::6815:1607, 2606:4700:3036::ac43:c9af
NS2aurora.ns.cloudflare.com, clyde.ns.cloudflare.com
MX1mx.stackmail.com (pri: 10)
TXT1v=spf1 include:spf.stackmail.com a mx -a
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1aurora.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

contentstrategycourse.com directs to four IP numbers, which are 104.21.22.7, 172.67.201.175, 2606:4700:3036::ac43:c9af and 2606:4700:3037::6815:1607.

secondeflowco.click, bhc993.com, bbw(0x6675636b)book.net plus two other host names have IP numbers in common with contentstrategycourse.com.

Name Servers

contentstrategycourse.com uses two name servers for its delegation: aurora.ns.cloudflare.com and clyde.ns.cloudflare.com.

The name server configuration of contentstrategycourse.com is shared with other domains, for instance italianhelper.com, gartenbaukunst.net, eironons.com and two others.

The name servers of contentstrategycourse.com overlap at least partially with those of other domains — among them markswachtersnotarissen.nl, pragmaticplay.net.in, powersportamerica.com and two more.

The name servers elle.ns.cloudflare.com, camilo.ns.cloudflare.com and lila.ns.cloudflare.com are commonly seen alongside these name servers.

Hosts with 6 IP addresses each:

Hostname aurora.ns.cloudflare.com directs to 108.162.194.110, 162.159.38.110 and 172.64.34.110 along with 3 other IP addresses.

Hostname clyde.ns.cloudflare.com directs to 108.162.193.91, 172.64.33.91 and 173.245.59.91 along with 3 other IP addresses.

Mail Servers

contentstrategycourse.com uses one mail server — mx.stackmail.com.

The mail server setup of contentstrategycourse.com matches that of other domains such as orosites.com, riaambertesia.com, chancemok.com and two others.

The mail servers for contentstrategycourse.com overlap at least partially with those of other domains, including joomlatemplates.co.uk and progressivecorp.net.

mx.stackmail.com directs to just one IP number, 185.151.28.67.