rtf21.com - robtex.com

rtf21.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:4a9🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:8448🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.4.169Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.132.72🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NStessa.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26e5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtessa.ns.cloudflare.com
A2803:f800:50::6ca2:c2e5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRtessa.ns.cloudflare.com
A2a06:98c1:50::ac40:22e5🇺🇸 Cloudflare2a06:98c1:50::/45
PTRtessa.ns.cloudflare.com
A108.162.194.229🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtessa.ns.cloudflare.com
A162.159.38.229Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtessa.ns.cloudflare.com
A172.64.34.229🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRtessa.ns.cloudflare.com
NSwells.ns.cloudflare.com
A2606:4700:58::a29f:2c7d🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwells.ns.cloudflare.com
A2803:f800:50::6ca2:c37d🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRwells.ns.cloudflare.com
A2a06:98c1:50::ac40:237d🇺🇸 Cloudflare2a06:98c1:50::/45
PTRwells.ns.cloudflare.com
A108.162.195.125🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwells.ns.cloudflare.com
A162.159.44.125Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwells.ns.cloudflare.com
A172.64.35.125🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRwells.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.4.169, 172.67.132.72
IPv6 hints2606:4700:3032::6815:4a9, 2606:4700:3036::ac43:8448
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=110, name=cloudflare-ech.com
SOAtessa.ns.cloudflare.comdns@cloudflare.com serial=2410765558

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=1786181664

Same first word

rtf21.com

DNS History

11 records (6 active, 5 former)

200920112013201520172019202120232025NStessa.ns.cloudflare.comwells.ns.cloudflare.comns.gihc.netns2.gihc.netA104.21.4.169172.67.132.722606:4700:3032::6815:4a92606:4700:3036::ac43:8448210.116.103.972606:4700:3033::6815:4a92606:4700:3035::ac43:8448
○NSns.gihc.net2008-03-18 → 2017-02-20 · 4 obs
● 2008-03-18 07:59:30
● 2017-02-20 04:42:04
○ 2026-05-30 14:02:04
○ 2026-08-08 09:53:10
○NSns2.gihc.net2008-03-18 → 2017-02-20 · 4 obs
● 2008-03-18 07:59:30
● 2017-02-20 04:42:04
○ 2026-05-30 14:02:04
○ 2026-08-08 09:53:10
●NStessa.ns.cloudflare.com2026-05-30 → 2026-08-08 · 3 obs
○ 2017-02-20 04:42:04
● 2026-05-30 14:02:04
● 2026-08-08 09:53:10
●NSwells.ns.cloudflare.com2026-05-30 → 2026-08-08 · 3 obs
○ 2017-02-20 04:42:04
● 2026-05-30 14:02:04
● 2026-08-08 09:53:10
●A104.21.4.1692026-05-30 → 2026-08-08 · 3 obs
○ 2017-02-20 04:42:04
● 2026-05-30 14:02:04
● 2026-08-08 09:53:10
●A172.67.132.722026-05-30 → 2026-08-08 · 3 obs
○ 2017-02-20 04:42:04
● 2026-05-30 14:02:04
● 2026-08-08 09:53:10
○A210.116.103.972008-03-18 → 2017-02-20 · 4 obs
● 2008-03-18 07:59:30
● 2017-02-20 04:42:04
○ 2026-05-30 14:02:04
○ 2026-08-08 09:53:10
●A2606:4700:3032::6815:4a92026-07-14 → 2026-08-08 · 3 obs
○ 2026-05-30 14:02:04
● 2026-07-14 22:35:24
● 2026-08-08 09:53:10
○A2606:4700:3033::6815:4a92026-05-30 → 2026-05-30 · 4 obs
○ 2017-02-20 04:42:04
● 2026-05-30 14:02:04
○ 2026-07-14 22:35:24
○ 2026-08-08 09:53:10
○A2606:4700:3035::ac43:84482026-05-30 → 2026-05-30 · 4 obs
○ 2017-02-20 04:42:04
● 2026-05-30 14:02:04
○ 2026-07-14 22:35:24
○ 2026-08-08 09:53:10
●A2606:4700:3036::ac43:84482026-07-14 → 2026-08-08 · 3 obs
○ 2026-05-30 14:02:04
● 2026-07-14 22:35:24
● 2026-08-08 09:53:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net...-
rtf21.comtessa.ns.cloudflare.com, wells.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.125

NS records: tessa.ns.cloudflare.com, wells.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rtf21.com (unsigned zone)

⏱️ Timing

Total: 130ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.4.169, 172.67.132.72
AAAA22606:4700:3036::ac43:8448, 2606:4700:3032::6815:4a9
NS2tessa.ns.cloudflare.com, wells.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1tessa.ns.cloudflare.com dns.cloudflare.c

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

rtf21.com resolves to four IP addresses: 104.21.4.169, 172.67.132.72, 2606:4700:3032::6815:4a9 and 2606:4700:3036::ac43:8448.

Additional host names — 155056.com, kniblits.com, sgarcia.com.co and two others — share IP numbers with rtf21.com.

Name Servers

rtf21.com has two authoritative name servers — tessa.ns.cloudflare.com and wells.ns.cloudflare.com.

rtf21.com shares its name server setup with other domains, including ijl.me, pmst.pl, pan-uk.org and two others.

rtf21.com partially shares its NS delegation with several other domains, including 192211.com, globalpointagency.com, homm.us and two others.

The name servers fattouche.ns.cloudflare.com, janet.ns.cloudflare.com, sureena.ns.cloudflare.com and elmo.ns.cloudflare.com are often found in use alongside these name servers.

Host names with 6 IP numbers:

tessa.ns.cloudflare.com points to 108.162.194.229, 162.159.38.229, 172.64.34.229 and 3 other IP addresses.

wells.ns.cloudflare.com points to 108.162.195.125, 162.159.44.125, 172.64.35.125 and 3 other IP addresses.