ns1.calcsystems.com - robtex.com

ns1.calcsystems.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:e13🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:ca2e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.14.19Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.202.46🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.14.19, 172.67.202.46
IPv6 hints2606:4700:3030::6815:e13, 2606:4700:3031::ac43:ca2e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com

calcsystems.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:e13🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::ac43:ca2e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.14.19Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.202.46🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSliberty.ns.cloudflare.com ⭐
NSmorgan.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXTgoogle-site-verification=dC5k2AqfVEDQ1Oxf8kldx-HUOkCZczDnZJY4lKlP2qY
TXTgoogle-site-verification=zfk3CoH6bXHE9eT0S7aaQhUAfvocp-jwk3DmuC4f2zw
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.14.19, 172.67.202.46
IPv6 hints2606:4700:3030::6815:e13, 2606:4700:3031::ac43:ca2e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=194, name=cloudflare-ech.com
SOAliberty.ns.cloudflare.comdns@cloudflare.com serial=2403667117

Previously NS for

calcsystems.com

Same first word

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DNS History

5 records (4 active, 1 former)

20192020202120222023202420252026A104.21.14.19172.67.202.462606:4700:3030::6815:e132606:4700:3031::ac43:ca2e5.188.87.14
●A104.21.14.192026-05-09 → 2026-05-09 · 2 obs
○ 2026-02-18 02:29:52
● 2026-05-09 14:43:36
●A172.67.202.462026-05-09 → 2026-05-09 · 2 obs
○ 2026-02-18 02:29:52
● 2026-05-09 14:43:36
●A2606:4700:3030::6815:e132026-05-09 → 2026-05-09 · 2 obs
○ 2026-02-18 02:29:52
● 2026-05-09 14:43:36
●A2606:4700:3031::ac43:ca2e2026-05-09 → 2026-05-09 · 2 obs
○ 2026-02-18 02:29:52
● 2026-05-09 14:43:36
○A5.188.87.142018-09-30 → 2026-02-17 · 4 obs
● 2018-09-30 04:32:26
● 2026-02-17 02:41:54
○ 2026-02-18 02:29:52
○ 2026-05-09 14:43:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
calcsystems.comliberty.ns.cloudflare.com, morgan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.240

NS records: liberty.ns.cloudflare.com, morgan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for calcsystems.com (unsigned zone)

⏱️ Timing

Total: 76ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.202.46, 104.21.14.19
AAAA22606:4700:3030::6815:e13, 2606:4700:3031::ac43:ca2e
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

ns1.calcsystems.com points to four IP numbers: 2606:4700:3030::6815:e13, 2606:4700:3031::ac43:ca2e, 104.21.14.19 and 172.67.202.46.

Other host names, for instance www.examenesdepau.com, www.pneusdoc.com, polskamedzone.info, pervertebony.com and skyblock.fr share IP numbers with ns1.calcsystems.com.