ctfda.com - dns.ninja

ctfda.com

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:9ca6πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3035::6815:5a7fπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.90.127Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.156.166πŸ‡ΊπŸ‡Έ Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NShope.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3aa3πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhope.ns.cloudflare.com
A2803:f800:50::6ca2:c0a3πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRhope.ns.cloudflare.com
A2a06:98c1:50::ac40:20a3πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRhope.ns.cloudflare.com
A108.162.192.163πŸ‡ΊπŸ‡Έ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhope.ns.cloudflare.com
A172.64.32.163πŸ‡ΊπŸ‡Έ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhope.ns.cloudflare.com
A173.245.58.163πŸ‡ΊπŸ‡Έ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhope.ns.cloudflare.com
NSkurt.ns.cloudflare.com
A2606:4700:58::adf5:3bc1πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkurt.ns.cloudflare.com
A2803:f800:50::6ca2:c1c1πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkurt.ns.cloudflare.com
A2a06:98c1:50::ac40:21c1πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRkurt.ns.cloudflare.com
A108.162.193.193πŸ‡ΊπŸ‡Έ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkurt.ns.cloudflare.com
A172.64.33.193πŸ‡ΊπŸ‡Έ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkurt.ns.cloudflare.com
A173.245.59.193πŸ‡ΊπŸ‡Έ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkurt.ns.cloudflare.com
TXTgoogle-site-verification=pWfzuqGIlGsY9GynVoLCWd98Bglx2vOzOrGXPQeyOsA
HTTPSHTTP/3, HTTP/2 βœ“ hints match
IPv4 hints104.21.90.127, 172.67.156.166
IPv6 hints2606:4700:3031::ac43:9ca6, 2606:4700:3035::6815:5a7f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=193, name=cloudflare-ech.com
SOAhope.ns.cloudflare.comdns@cloudflare.com serial=2409710267

com

rank #208334 globally
rank #87031 in the tld
WOT: SAFE (34/100)
πŸ“ˆ Tranco rank: #724,485

Previously MX for

Same first word

Similar names

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026NShope.ns.cloudflare.comkurt.ns.cloudflare.comdns1.f1.com.twdns2.f1.com.twMXctfda.comwww.ctfda.comA104.21.90.127172.67.156.1662606:4700:3031::ac43:9ca62606:4700:3035::6815:5a7f188.114.96.0188.114.97.02606:4700:3033::6815:5a7f2a06:98c1:3120::2a06:98c1:3121::61.31.226.236
β—‹NSdns1.f1.com.tw2015-07-12 β†’ 2017-02-08 Β· 4 obs
● 2015-07-12 18:54:04
● 2017-02-08 12:20:18
β—‹ 2026-02-23 21:24:20
β—‹ 2026-08-03 19:54:52
β—‹NSdns2.f1.com.tw2015-07-12 β†’ 2017-02-08 Β· 4 obs
● 2015-07-12 18:54:04
● 2017-02-08 12:20:18
β—‹ 2026-02-23 21:24:20
β—‹ 2026-08-03 19:54:52
●NShope.ns.cloudflare.com2026-02-23 β†’ 2026-08-03 Β· 3 obs
β—‹ 2017-02-08 12:20:18
● 2026-02-23 21:24:20
● 2026-08-03 19:54:52
●NSkurt.ns.cloudflare.com2026-02-23 β†’ 2026-08-03 Β· 3 obs
β—‹ 2017-02-08 12:20:18
● 2026-02-23 21:24:20
● 2026-08-03 19:54:52
β—‹MXctfda.com2015-07-12 β†’ 2017-02-08 Β· 4 obs
● 2015-07-12 18:54:04
● 2017-02-08 12:20:18
β—‹ 2026-02-23 21:24:20
β—‹ 2026-08-03 19:54:52
β—‹MXwww.ctfda.com2015-07-12 β†’ 2017-02-08 Β· 4 obs
● 2015-07-12 18:54:04
● 2017-02-08 12:20:18
β—‹ 2026-02-23 21:24:20
β—‹ 2026-08-03 19:54:52
●A104.21.90.1272026-02-23 β†’ 2026-08-03 Β· 6 obs
β—‹ 2017-02-08 12:20:18
● 2026-02-23 21:24:20
● 2026-05-04 12:43:10
β—‹ 2026-05-18 04:14:40
● 2026-05-20 13:05:10
● 2026-08-03 19:54:52
●A172.67.156.1662026-02-23 β†’ 2026-08-03 Β· 6 obs
β—‹ 2017-02-08 12:20:18
● 2026-02-23 21:24:20
● 2026-05-04 12:43:10
β—‹ 2026-05-18 04:14:40
● 2026-05-20 13:05:10
● 2026-08-03 19:54:52
β—‹A188.114.96.02026-05-18 β†’ 2026-05-18 Β· 5 obs
β—‹ 2026-02-23 21:24:20
β—‹ 2026-05-04 12:43:10
● 2026-05-18 04:14:40
β—‹ 2026-05-20 13:05:10
β—‹ 2026-08-03 19:54:52
β—‹A188.114.97.02026-05-18 β†’ 2026-05-18 Β· 5 obs
β—‹ 2026-02-23 21:24:20
β—‹ 2026-05-04 12:43:10
● 2026-05-18 04:14:40
β—‹ 2026-05-20 13:05:10
β—‹ 2026-08-03 19:54:52
●A2606:4700:3031::ac43:9ca62026-02-23 β†’ 2026-08-03 Β· 6 obs
β—‹ 2017-02-08 12:20:18
● 2026-02-23 21:24:20
● 2026-05-04 12:43:10
β—‹ 2026-05-18 04:14:40
● 2026-05-20 13:05:10
● 2026-08-03 19:54:52
β—‹A2606:4700:3033::6815:5a7f2026-02-23 β†’ 2026-05-20 Β· 6 obs
β—‹ 2017-02-08 12:20:18
● 2026-02-23 21:24:20
● 2026-05-04 12:43:10
β—‹ 2026-05-18 04:14:40
● 2026-05-20 13:05:10
β—‹ 2026-08-03 19:54:52
●A2606:4700:3035::6815:5a7f2026-08-03 β†’ 2026-08-03 Β· 2 obs
β—‹ 2026-05-20 13:05:10
● 2026-08-03 19:54:52
β—‹A2a06:98c1:3120::2026-05-18 β†’ 2026-05-18 Β· 5 obs
β—‹ 2026-02-23 21:24:20
β—‹ 2026-05-04 12:43:10
● 2026-05-18 04:14:40
β—‹ 2026-05-20 13:05:10
β—‹ 2026-08-03 19:54:52
β—‹A2a06:98c1:3121::2026-05-18 β†’ 2026-05-18 Β· 5 obs
β—‹ 2026-02-23 21:24:20
β—‹ 2026-05-04 12:43:10
● 2026-05-18 04:14:40
β—‹ 2026-05-20 13:05:10
β—‹ 2026-08-03 19:54:52
β—‹A61.31.226.2362015-07-12 β†’ 2017-02-08 Β· 4 obs
● 2015-07-12 18:54:04
● 2017-02-08 12:20:18
β—‹ 2026-02-23 21:24:20
β—‹ 2026-08-03 19:54:52

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, h.gtld-servers.net...-
ctfda.comhope.ns.cloudflare.com, kurt.ns.cloudflare.com12 records

βœ… Authoritative Response

Server:108.162.193.193

NS records: hope.ns.cloudflare.com, kurt.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctfda.com (unsigned zone)

⏱️ Timing

Total: 115ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2172.67.156.166, 104.21.90.127
AAAA22606:4700:3031::ac43:9ca6, 2606:4700:3035::6815:5a7f
NS2hope.ns.cloudflare.com, kurt.ns.cloudflare.com
TXT1google-site-verification=pWfzuqGIlGsY9Gy
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1hope.ns.cloudflare.com dns.cloudflare.co

πŸ“Œ Glue Records Collected

Total: 12

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

Analysis

IP Addresses

ctfda.com directs to four IP numbers, which are 104.21.90.127, 172.67.156.166, 2606:4700:3031::ac43:9ca6 and 2606:4700:3035::6815:5a7f.

Two other host names, along with courageworks.com, xcyma.ogmvcakub.com and streamncd.net, also share IP numbers with ctfda.com.

Name Servers

DNS delegation for ctfda.com points to two name servers: hope.ns.cloudflare.com and kurt.ns.cloudflare.com.

ctfda.com shares its NS records with other domains, for example gdham.com, jobmal.com, fafa444.com and two others.

The name servers of ctfda.com overlap at least partially with those of other domains β€” among them hstnkyy.com, 7bongvn.co, thermoplasticcoating.com and two more.

These name servers commonly co-occur with the name servers anuj.ns.cloudflare.com, miki.ns.cloudflare.com, jocelyn.ns.cloudflare.com and bill.ns.cloudflare.com.

DNS names with 6 IP addresses:

hope.ns.cloudflare.com has IP addresses 108.162.192.163, 172.64.32.163 and 173.245.58.163, plus 3 other.

kurt.ns.cloudflare.com has IP addresses 108.162.193.193, 172.64.33.193 and 173.245.59.193, plus 3 other.