19903.net - robtex.com

19903.net

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:2679🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:dea1🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.38.121Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.222.161🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScoco.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a68🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoco.ns.cloudflare.com
A2803:f800:50::6ca2:c068🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcoco.ns.cloudflare.com
A2a06:98c1:50::ac40:2068🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcoco.ns.cloudflare.com
A108.162.192.104🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoco.ns.cloudflare.com
A172.64.32.104🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoco.ns.cloudflare.com
A173.245.58.104🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoco.ns.cloudflare.com
NSvin.ns.cloudflare.com
A2606:4700:58::adf5:3bf5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A2803:f800:50::6ca2:c1f5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvin.ns.cloudflare.com
A2a06:98c1:50::ac40:21f5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvin.ns.cloudflare.com
A108.162.193.245🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A172.64.33.245🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
A173.245.59.245🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvin.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.38.121, 172.67.222.161
IPv6 hints2606:4700:3032::6815:2679, 2606:4700:3033::ac43:dea1
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=55, name=cloudflare-ech.com
SOAcoco.ns.cloudflare.comdns@cloudflare.com serial=2403943793

net

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=1781585785

Same first word

19903.com
19903.net

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DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NScoco.ns.cloudflare.comvin.ns.cloudflare.comdns1.name-services.comdns2.name-services.comdns3.name-services.comdns4.name-services.comdns5.name-services.comA104.21.38.121172.67.222.1612606:4700:3032::6815:26792606:4700:3033::ac43:dea198.124.198.198.124.199.1CNAMEpark.jinmi.com
●NScoco.ns.cloudflare.com2026-06-03 → 2026-06-16 · 3 obs
○ 2017-07-01 02:33:58
● 2026-06-03 23:19:04
● 2026-06-16 05:25:58
○NSdns1.name-services.com2015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 13:52:04
○ 2017-07-01 02:33:58
○ 2026-06-16 05:25:58
○NSdns2.name-services.com2015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 13:52:04
○ 2017-07-01 02:33:58
○ 2026-06-16 05:25:58
○NSdns3.name-services.com2015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 13:52:04
○ 2017-07-01 02:33:58
○ 2026-06-16 05:25:58
○NSdns4.name-services.com2015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 13:52:04
○ 2017-07-01 02:33:58
○ 2026-06-16 05:25:58
○NSdns5.name-services.com2015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 13:52:04
○ 2017-07-01 02:33:58
○ 2026-06-16 05:25:58
●NSvin.ns.cloudflare.com2026-06-03 → 2026-06-16 · 3 obs
○ 2017-07-01 02:33:58
● 2026-06-03 23:19:04
● 2026-06-16 05:25:58
●A104.21.38.1212026-06-03 → 2026-06-16 · 3 obs
○ 2017-07-01 02:33:58
● 2026-06-03 23:19:04
● 2026-06-16 05:25:58
●A172.67.222.1612026-06-03 → 2026-06-16 · 3 obs
○ 2017-07-01 02:33:58
● 2026-06-03 23:19:04
● 2026-06-16 05:25:58
●A2606:4700:3032::6815:26792026-06-03 → 2026-06-16 · 3 obs
○ 2017-07-01 02:33:58
● 2026-06-03 23:19:04
● 2026-06-16 05:25:58
●A2606:4700:3033::ac43:dea12026-06-03 → 2026-06-16 · 3 obs
○ 2017-07-01 02:33:58
● 2026-06-03 23:19:04
● 2026-06-16 05:25:58
○A98.124.198.12015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 13:52:04
○ 2017-07-01 02:33:58
○ 2026-06-16 05:25:58
○A98.124.199.12015-06-15 → 2015-06-15 · 3 obs
● 2015-06-15 13:52:04
○ 2017-07-01 02:33:58
○ 2026-06-16 05:25:58
○CNAMEpark.jinmi.com2017-07-01 → 2017-07-01 · 3 obs
● 2017-07-01 02:33:58
○ 2026-03-20 15:26:18
○ 2026-06-16 05:25:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netb.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net...-
19903.netcoco.ns.cloudflare.com, vin.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.245

NS records: coco.ns.cloudflare.com, vin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 19903.net (unsigned zone)

⏱️ Timing

Total: 668ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.38.121, 172.67.222.161
AAAA22606:4700:3033::ac43:dea1, 2606:4700:3032::6815:2679
NS2coco.ns.cloudflare.com, vin.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1coco.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

19903.net resolves to four IP addresses: 104.21.38.121, 172.67.222.161, 2606:4700:3032::6815:2679 and 2606:4700:3033::ac43:dea1.

Two other host names, along with callenmedia.com, sisconnection.com.br and olimpiadamatematica.es, also share IP numbers with 19903.net.

Name Servers

19903.net uses two name servers for its delegation: coco.ns.cloudflare.com and vin.ns.cloudflare.com.

19903.net shares its NS records with other domains, for example be6b6e56c.com, haugiteejoke.net, ergouacg.top and two others.

19903.net shares at least some of its name servers with other domains, including 0f0754a9288d.com, warelab.org, hokimaha.ink and two others.

These name servers are frequently paired with the name servers ernest.ns.cloudflare.com and melany.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname coco.ns.cloudflare.com directs to 108.162.192.104, 172.64.32.104 and 173.245.58.104 along with 3 other IP addresses.

Hostname vin.ns.cloudflare.com directs to 108.162.193.245, 172.64.33.245 and 173.245.59.245 along with 3 other IP addresses.