www.u538.com - robtex.com

www.u538.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:3e1eπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3034::ac43:db66πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.62.30Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.219.102πŸ‡ΊπŸ‡Έ Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.62.30, 172.67.219.102
IPv6 hints2606:4700:3031::6815:3e1e, 2606:4700:3034::ac43:db66
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=122, name=cloudflare-ech.com

u538.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:3e1eπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3034::ac43:db66πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.62.30Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.219.102πŸ‡ΊπŸ‡Έ Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NSsalvador.ns.cloudflare.com ⭐
NSsamara.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.62.30, 172.67.219.102
IPv6 hints2606:4700:3031::6815:3e1e, 2606:4700:3034::ac43:db66
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=122, name=cloudflare-ech.com
SOAsalvador.ns.cloudflare.comdns@cloudflare.com serial=2399430827

Same first word

Similar names

DNS History

8 records (4 active, 4 former)

20162017201820192020202120222023202420252026A104.21.62.30172.67.219.1022606:4700:3031::6815:3e1e2606:4700:3034::ac43:db66103.56.114.183188.114.96.0188.114.97.065.19.141.200
β—‹A103.56.114.1832018-01-15 β†’ 2018-01-15 Β· 4 obs
β—‹ 2015-11-07 15:31:32
● 2018-01-15 23:17:22
β—‹ 2026-03-18 03:32:46
β—‹ 2026-04-14 13:31:40
●A104.21.62.302026-03-18 β†’ 2026-04-14 Β· 5 obs
β—‹ 2018-01-15 23:17:22
● 2026-03-18 03:32:46
β—‹ 2026-04-02 08:54:58
● 2026-04-12 10:35:22
● 2026-04-14 13:31:40
●A172.67.219.1022026-03-18 β†’ 2026-04-14 Β· 5 obs
β—‹ 2018-01-15 23:17:22
● 2026-03-18 03:32:46
β—‹ 2026-04-02 08:54:58
● 2026-04-12 10:35:22
● 2026-04-14 13:31:40
β—‹A188.114.96.02026-04-02 β†’ 2026-04-02 Β· 4 obs
β—‹ 2026-03-18 03:32:46
● 2026-04-02 08:54:58
β—‹ 2026-04-12 10:35:22
β—‹ 2026-04-14 13:31:40
β—‹A188.114.97.02026-04-02 β†’ 2026-04-02 Β· 4 obs
β—‹ 2026-03-18 03:32:46
● 2026-04-02 08:54:58
β—‹ 2026-04-12 10:35:22
β—‹ 2026-04-14 13:31:40
●A2606:4700:3031::6815:3e1e2026-03-18 β†’ 2026-04-14 Β· 3 obs
β—‹ 2018-01-15 23:17:22
● 2026-03-18 03:32:46
● 2026-04-14 13:31:40
●A2606:4700:3034::ac43:db662026-03-18 β†’ 2026-04-14 Β· 3 obs
β—‹ 2018-01-15 23:17:22
● 2026-03-18 03:32:46
● 2026-04-14 13:31:40
β—‹A65.19.141.2002015-06-19 β†’ 2015-06-19 Β· 3 obs
● 2015-06-19 04:48:14
β—‹ 2015-11-07 15:31:32
β—‹ 2026-04-14 13:31:40

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
u538.comsamara.ns.cloudflare.com, salvador.ns.cloudflare.com12 records

βœ… Authoritative Response

Server:108.162.195.100

NS records: samara.ns.cloudflare.com, salvador.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for u538.com (unsigned zone)

⏱️ Timing

Total: 158ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2172.67.219.102, 104.21.62.30
AAAA22606:4700:3034::ac43:db66, 2606:4700:3031::6815:3e1e
HTTPS1{"priority":1,"target":".","alpn":["h3",

πŸ“Œ Glue Records Collected

Total: 12

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

Analysis

IP Addresses

Four IP numbers are pointed to by www.u538.com: 2606:4700:3031::6815:3e1e, 2606:4700:3034::ac43:db66, 104.21.62.30 and 172.67.219.102.

other host names including dropstabservice.com, blogmystt.com, oncom.com, www.cursosmasters.com and www.mattmeis.com share IP numbers with www.u538.com.