amscourseware.com - dns.ninja

amscourseware.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:123a🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:b46f🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.18.58Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.180.111🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmckenzie.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26fd🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmckenzie.ns.cloudflare.com
A2803:f800:50::6ca2:c2fd🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmckenzie.ns.cloudflare.com
A2a06:98c1:50::ac40:22fd🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmckenzie.ns.cloudflare.com
A108.162.194.253🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmckenzie.ns.cloudflare.com
A162.159.38.253Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmckenzie.ns.cloudflare.com
A172.64.34.253🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmckenzie.ns.cloudflare.com
NStheo.ns.cloudflare.com
A2606:4700:58::adf5:3b90🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtheo.ns.cloudflare.com
A2803:f800:50::6ca2:c190🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtheo.ns.cloudflare.com
A2a06:98c1:50::ac40:2190🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtheo.ns.cloudflare.com
A108.162.193.144🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtheo.ns.cloudflare.com
A172.64.33.144🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtheo.ns.cloudflare.com
A173.245.59.144🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtheo.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.18.58, 172.67.180.111
IPv6 hints2606:4700:3031::6815:123a, 2606:4700:3032::ac43:b46f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=114, name=cloudflare-ech.com
SOAmckenzie.ns.cloudflare.comdns@cloudflare.com serial=2407593991

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=1785315847
WOT: SAFE (70/100)

Subdomains

www.amscourseware.com

Same first word

amscourseware.com

DNS History

25 records (6 active, 19 former)

20162017201820192020202120222023202420252026NSmckenzie.ns.cloudflare.comtheo.ns.cloudflare.comdns10.parkpage.foundationapi.comdns11.parkpage.foundationapi.comdns9.parkpage.foundationapi.comns1.51dns.comns1.ipower.comns2.51dns.comns2.ipower.comMXmx.amscourseware.comA104.21.18.58172.67.180.1112606:4700:3031::6815:123a2606:4700:3032::ac43:b46f188.114.96.0188.114.97.0209.99.40.222209.99.40.22323.238.166.2072606:4700:3035::ac43:b46f2606:4700:3037::6815:123a2a06:98c1:3120::2a06:98c1:3121::66.96.130.115PTRdns9.parkpage.foundationapi.com
○NSdns10.parkpage.foundationapi.com2017-06-01 → 2017-06-01 · 4 obs
○ 2016-09-20 03:41:44
● 2017-06-01 03:42:26
○ 2026-02-15 00:50:32
○ 2026-07-29 09:15:14
○NSdns11.parkpage.foundationapi.com2017-06-01 → 2017-06-01 · 4 obs
○ 2016-09-20 03:41:44
● 2017-06-01 03:42:26
○ 2026-02-15 00:50:32
○ 2026-07-29 09:15:14
○NSdns9.parkpage.foundationapi.com2017-06-01 → 2017-06-01 · 4 obs
○ 2016-09-20 03:41:44
● 2017-06-01 03:42:26
○ 2026-02-15 00:50:32
○ 2026-07-29 09:15:14
●NSmckenzie.ns.cloudflare.com2026-02-15 → 2026-07-29 · 3 obs
○ 2017-06-01 03:42:26
● 2026-02-15 00:50:32
● 2026-07-29 09:15:14
○NSns1.51dns.com2016-09-20 → 2016-09-20 · 4 obs
○ 2016-03-30 08:47:48
● 2016-09-20 03:41:44
○ 2017-06-01 03:42:26
○ 2026-07-29 09:15:14
○NSns1.ipower.com2015-05-19 → 2015-12-24 · 4 obs
● 2015-05-19 14:25:10
● 2015-12-24 17:56:16
○ 2016-03-30 08:47:48
○ 2026-07-29 09:15:14
○NSns2.51dns.com2016-09-20 → 2016-09-20 · 4 obs
○ 2016-03-30 08:47:48
● 2016-09-20 03:41:44
○ 2017-06-01 03:42:26
○ 2026-07-29 09:15:14
○NSns2.ipower.com2015-05-19 → 2015-12-24 · 4 obs
● 2015-05-19 14:25:10
● 2015-12-24 17:56:16
○ 2016-03-30 08:47:48
○ 2026-07-29 09:15:14
●NStheo.ns.cloudflare.com2026-02-15 → 2026-07-29 · 3 obs
○ 2017-06-01 03:42:26
● 2026-02-15 00:50:32
● 2026-07-29 09:15:14
○MXmx.amscourseware.com2015-05-19 → 2015-12-24 · 4 obs
● 2015-05-19 14:25:10
● 2015-12-24 17:56:16
○ 2016-03-30 08:47:48
○ 2026-07-29 09:15:14
●A104.21.18.582026-02-15 → 2026-07-29 · 5 obs
○ 2017-06-01 03:42:26
● 2026-02-15 00:50:32
● 2026-03-15 09:06:30
○ 2026-04-28 08:56:14
● 2026-07-29 09:15:14
●A172.67.180.1112026-02-15 → 2026-07-29 · 5 obs
○ 2017-06-01 03:42:26
● 2026-02-15 00:50:32
● 2026-03-15 09:06:30
○ 2026-04-28 08:56:14
● 2026-07-29 09:15:14
○A188.114.96.02026-04-28 → 2026-04-28 · 3 obs
○ 2026-03-15 09:06:30
● 2026-04-28 08:56:14
○ 2026-07-29 09:15:14
○A188.114.97.02026-04-28 → 2026-04-28 · 3 obs
○ 2026-03-15 09:06:30
● 2026-04-28 08:56:14
○ 2026-07-29 09:15:14
○A209.99.40.2222017-06-01 → 2017-06-01 · 4 obs
○ 2016-09-20 03:41:44
● 2017-06-01 03:42:26
○ 2026-02-15 00:50:32
○ 2026-07-29 09:15:14
○A209.99.40.2232017-06-01 → 2017-06-01 · 4 obs
○ 2016-09-20 03:41:44
● 2017-06-01 03:42:26
○ 2026-02-15 00:50:32
○ 2026-07-29 09:15:14
○A23.238.166.2072016-09-20 → 2016-09-20 · 4 obs
○ 2016-03-30 08:47:48
● 2016-09-20 03:41:44
○ 2017-06-01 03:42:26
○ 2026-07-29 09:15:14
●A2606:4700:3031::6815:123a2026-07-29 → 2026-07-29 · 2 obs
○ 2026-04-28 08:56:14
● 2026-07-29 09:15:14
●A2606:4700:3032::ac43:b46f2026-07-29 → 2026-07-29 · 2 obs
○ 2026-04-28 08:56:14
● 2026-07-29 09:15:14
○A2606:4700:3035::ac43:b46f2026-02-15 → 2026-03-15 · 5 obs
○ 2017-06-01 03:42:26
● 2026-02-15 00:50:32
● 2026-03-15 09:06:30
○ 2026-04-28 08:56:14
○ 2026-07-29 09:15:14
○A2606:4700:3037::6815:123a2026-02-15 → 2026-03-15 · 5 obs
○ 2017-06-01 03:42:26
● 2026-02-15 00:50:32
● 2026-03-15 09:06:30
○ 2026-04-28 08:56:14
○ 2026-07-29 09:15:14
○A2a06:98c1:3120::2026-04-28 → 2026-04-28 · 3 obs
○ 2026-03-15 09:06:30
● 2026-04-28 08:56:14
○ 2026-07-29 09:15:14
○A2a06:98c1:3121::2026-04-28 → 2026-04-28 · 3 obs
○ 2026-03-15 09:06:30
● 2026-04-28 08:56:14
○ 2026-07-29 09:15:14
○A66.96.130.1152015-05-19 → 2015-12-24 · 4 obs
● 2015-05-19 14:25:10
● 2015-12-24 17:56:16
○ 2016-03-30 08:47:48
○ 2026-07-29 09:15:14
○PTRdns9.parkpage.foundationapi.com2017-06-01 → 2026-02-15 · 4 obs
● 2017-06-01 03:42:26
● 2026-02-15 00:50:32
○ 2026-02-22 15:45:30
○ 2026-07-29 09:15:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
amscourseware.comtheo.ns.cloudflare.com, mckenzie.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.253

NS records: theo.ns.cloudflare.com, mckenzie.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for amscourseware.com (unsigned zone)

⏱️ Timing

Total: 183ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.180.111, 104.21.18.58
AAAA22606:4700:3031::6815:123a, 2606:4700:3032::ac43:b46f
NS2mckenzie.ns.cloudflare.com, theo.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1mckenzie.ns.cloudflare.com dns.cloudflar

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.amscourseware.com is delegated beneath amscourseware.com.

IP Addresses

amscourseware.com directs to four IP numbers, which are 104.21.18.58, 172.67.180.111, 2606:4700:3031::6815:123a and 2606:4700:3032::ac43:b46f.

Additional host names — elabocompe.digital, coronatest-tilburg.nl, corjireh.com and two others — share IP numbers with amscourseware.com.

Name Servers

amscourseware.com uses two name servers for its delegation: mckenzie.ns.cloudflare.com and theo.ns.cloudflare.com.

amscourseware.com shares its name server setup with other domains, including hjtuozhan.com, niuchaxun.com, 0510mnwk.com and two others.

There is at least partial name server overlap between amscourseware.com and other domains — elektrikchairtattoo.com, byron-harvey.com, vkart.net and two more among them.

These name servers are routinely deployed together with the name servers gwen.ns.cloudflare.com.

Host names with 6 IP numbers:

Hostname mckenzie.ns.cloudflare.com directs to 108.162.194.253, 162.159.38.253 and 172.64.34.253 along with 3 other IP addresses.

Hostname theo.ns.cloudflare.com directs to 108.162.193.144, 172.64.33.144 and 173.245.59.144 along with 3 other IP addresses.