fundamentalsof.com - dns.ninja

fundamentalsof.com

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:1990🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:864e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.144Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.134.78🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdora.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a6c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdora.ns.cloudflare.com
A2803:f800:50::6ca2:c06c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdora.ns.cloudflare.com
A2a06:98c1:50::ac40:206c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdora.ns.cloudflare.com
A108.162.192.108🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdora.ns.cloudflare.com
A172.64.32.108🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdora.ns.cloudflare.com
A173.245.58.108🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdora.ns.cloudflare.com
NSivan.ns.cloudflare.com
A2606:4700:58::adf5:3b78🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRivan.ns.cloudflare.com
A2803:f800:50::6ca2:c178🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRivan.ns.cloudflare.com
A2a06:98c1:50::ac40:2178🇺🇸 Cloudflare2a06:98c1:50::/45
PTRivan.ns.cloudflare.com
A108.162.193.120🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRivan.ns.cloudflare.com
A172.64.33.120🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRivan.ns.cloudflare.com
A173.245.59.120🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRivan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.25.144, 172.67.134.78
IPv6 hints2606:4700:3033::6815:1990, 2606:4700:3033::ac43:864e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=94, name=cloudflare-ech.com
SOAdora.ns.cloudflare.comdns@cloudflare.com serial=2406306013

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=1781480825

Same first word

fundamentalsof.com

DNS History

20 records (6 active, 14 former)

200920112013201520172019202120232025NSdora.ns.cloudflare.comivan.ns.cloudflare.comyns1.yahoo.comyns2.yahoo.comMXmx1.biz.mail.yahoo.commx5.biz.mail.yahoo.comA104.21.25.144172.67.134.782606:4700:3033::6815:19902606:4700:3033::ac43:864e188.114.96.0188.114.97.0216.39.62.112216.39.62.113216.39.62.114216.39.62.115216.39.62.116216.39.62.1172a06:98c1:3120::2a06:98c1:3121::
●NSdora.ns.cloudflare.com2026-03-03 → 2026-06-14 · 3 obs
○ 2015-07-02 20:42:46
● 2026-03-03 14:48:10
● 2026-06-14 23:52:02
●NSivan.ns.cloudflare.com2026-03-03 → 2026-06-14 · 3 obs
○ 2015-07-02 20:42:46
● 2026-03-03 14:48:10
● 2026-06-14 23:52:02
○NSyns1.yahoo.com2008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
○NSyns2.yahoo.com2008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
○MXmx1.biz.mail.yahoo.com2008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
○MXmx5.biz.mail.yahoo.com2008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
●A104.21.25.1442026-03-03 → 2026-06-14 · 9 obs
○ 2015-07-02 20:42:46
● 2026-03-03 14:48:10
● 2026-03-27 03:20:00
○ 2026-04-15 02:51:26
● 2026-04-15 07:40:42
● 2026-05-27 10:35:20
○ 2026-06-03 22:00:02
● 2026-06-03 23:02:50
● 2026-06-14 23:52:02
●A172.67.134.782026-03-03 → 2026-06-14 · 9 obs
○ 2015-07-02 20:42:46
● 2026-03-03 14:48:10
● 2026-03-27 03:20:00
○ 2026-04-15 02:51:26
● 2026-04-15 07:40:42
● 2026-05-27 10:35:20
○ 2026-06-03 22:00:02
● 2026-06-03 23:02:50
● 2026-06-14 23:52:02
○A188.114.96.02026-04-15 → 2026-06-03 · 7 obs
○ 2026-03-27 03:20:00
● 2026-04-15 02:51:26
○ 2026-04-15 07:40:42
○ 2026-05-27 10:35:20
● 2026-06-03 22:00:02
○ 2026-06-03 23:02:50
○ 2026-06-14 23:52:02
○A188.114.97.02026-04-15 → 2026-06-03 · 7 obs
○ 2026-03-27 03:20:00
● 2026-04-15 02:51:26
○ 2026-04-15 07:40:42
○ 2026-05-27 10:35:20
● 2026-06-03 22:00:02
○ 2026-06-03 23:02:50
○ 2026-06-14 23:52:02
○A216.39.62.1122008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
○A216.39.62.1132008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
○A216.39.62.1142008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
○A216.39.62.1152008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
○A216.39.62.1162008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
○A216.39.62.1172008-03-18 → 2008-03-18 · 3 obs
● 2008-03-18 01:39:52
○ 2015-07-02 20:42:46
○ 2026-06-14 23:52:02
●A2606:4700:3033::6815:19902026-03-03 → 2026-06-14 · 9 obs
○ 2015-07-02 20:42:46
● 2026-03-03 14:48:10
● 2026-03-27 03:20:00
○ 2026-04-15 02:51:26
● 2026-04-15 07:40:42
● 2026-05-27 10:35:20
○ 2026-06-03 22:00:02
● 2026-06-03 23:02:50
● 2026-06-14 23:52:02
●A2606:4700:3033::ac43:864e2026-03-03 → 2026-06-14 · 9 obs
○ 2015-07-02 20:42:46
● 2026-03-03 14:48:10
● 2026-03-27 03:20:00
○ 2026-04-15 02:51:26
● 2026-04-15 07:40:42
● 2026-05-27 10:35:20
○ 2026-06-03 22:00:02
● 2026-06-03 23:02:50
● 2026-06-14 23:52:02
○A2a06:98c1:3120::2026-04-15 → 2026-06-03 · 7 obs
○ 2026-03-27 03:20:00
● 2026-04-15 02:51:26
○ 2026-04-15 07:40:42
○ 2026-05-27 10:35:20
● 2026-06-03 22:00:02
○ 2026-06-03 23:02:50
○ 2026-06-14 23:52:02
○A2a06:98c1:3121::2026-04-15 → 2026-06-03 · 7 obs
○ 2026-03-27 03:20:00
● 2026-04-15 02:51:26
○ 2026-04-15 07:40:42
○ 2026-05-27 10:35:20
● 2026-06-03 22:00:02
○ 2026-06-03 23:02:50
○ 2026-06-14 23:52:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
fundamentalsof.comdora.ns.cloudflare.com, ivan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.120

NS records: dora.ns.cloudflare.com, ivan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for fundamentalsof.com (unsigned zone)

⏱️ Timing

Total: 142ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.25.144, 172.67.134.78
AAAA22606:4700:3033::ac43:864e, 2606:4700:3033::6815:1990
NS2dora.ns.cloudflare.com, ivan.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dora.ns.cloudflare.com dns.cloudflare.co

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

fundamentalsof.com directs to four IP numbers, which are 104.21.25.144, 172.67.134.78, 2606:4700:3033::6815:1990 and 2606:4700:3033::ac43:864e.

convince.me, unifiedit.nl, hdc.net plus two other host names have IP numbers in common with fundamentalsof.com.

Name Servers

fundamentalsof.com is served by two delegated name servers, dora.ns.cloudflare.com and ivan.ns.cloudflare.com.

The name server configuration of fundamentalsof.com is shared with other domains, for instance journalofmicroscopy.org.uk, motherofallbooks.com, blackwellurology.com and two others.

The name servers of fundamentalsof.com overlap at least partially with those of other domains — among them com-hkky.com, brooklyn-harvest.pbis-cf.instacart.com, asc-toner.ch and two more.

These name servers commonly appear in combination with the name servers major.ns.cloudflare.com.

Hosts with 6 IP addresses each:

dora.ns.cloudflare.com carries IP addresses 108.162.192.108, 172.64.32.108 and 173.245.58.108, with 3 other addresses beyond those.

ivan.ns.cloudflare.com carries IP addresses 108.162.193.120, 172.64.33.120 and 173.245.59.120, with 3 other addresses beyond those.