ns2.51systems.com - robtex.com

ns2.51systems.com

DNSSEC⚠️ Not signed

51systems.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:3e9e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8912🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.62.158Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.137.18🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSisla.ns.cloudflare.com ⭐
NSjosh.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXaspmx2.googlemail.com(10)
MXaspmx3.googlemail.com(10)
TXTv=spf1 include:_spf.google.com ip4:149.56.140.8 ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.62.158, 172.67.137.18
IPv6 hints2606:4700:3031::6815:3e9e, 2606:4700:3037::ac43:8912
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=209, name=cloudflare-ech.com
SOAisla.ns.cloudflare.comdns@cloudflare.com serial=2401464852

Previously NS for

cpthc.org
51systems.com
canhc.org
dustint.com

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DNS History

2 records (0 active, 2 former)

20162017201820192020202120222023202420252026A104.238.94.465.39.128.58
○A104.238.94.42015-12-31 → 2016-06-18 · 5 obs
○ 2015-09-07 06:18:18
● 2015-12-31 19:38:16
● 2016-06-18 22:45:44
○ 2026-04-03 13:29:30
○ 2026-04-20 10:45:20
○A65.39.128.582015-06-05 → 2015-09-07 · 4 obs
● 2015-06-05 08:54:30
● 2015-09-07 06:18:18
○ 2015-12-31 19:38:16
○ 2026-04-20 10:45:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
51systems.comisla.ns.cloudflare.com, josh.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.126

NS records: isla.ns.cloudflare.com, josh.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 110ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 12

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