421fk.com - robtex.com

421fk.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:86f2🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:19f9🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.25.249Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.134.242🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSadrian.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a39🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadrian.ns.cloudflare.com
A2803:f800:50::6ca2:c039🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRadrian.ns.cloudflare.com
A2a06:98c1:50::ac40:2039🇺🇸 Cloudflare2a06:98c1:50::/45
PTRadrian.ns.cloudflare.com
A108.162.192.57🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadrian.ns.cloudflare.com
A172.64.32.57🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadrian.ns.cloudflare.com
A173.245.58.57🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadrian.ns.cloudflare.com
NSsullivan.ns.cloudflare.com
A2606:4700:58::a29f:2ca1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsullivan.ns.cloudflare.com
A2803:f800:50::6ca2:c3a1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRsullivan.ns.cloudflare.com
A2a06:98c1:50::ac40:23a1🇺🇸 Cloudflare2a06:98c1:50::/45
PTRsullivan.ns.cloudflare.com
A108.162.195.161🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsullivan.ns.cloudflare.com
A162.159.44.161Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsullivan.ns.cloudflare.com
A172.64.35.161🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRsullivan.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.25.249, 172.67.134.242
IPv62606:4700:3033::ac43:86f2, 2606:4700:3035::6815:19f9
SOAadrian.ns.cloudflare.comdns@cloudflare.com serial=2400007366

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=1774555127
WOT: SAFE (61/100)

Subdomains

mail.421fk.com

Same first word

421fk.com

DNS History

11 records (6 active, 5 former)

20162017201820192020202120222023202420252026NSadrian.ns.cloudflare.comsullivan.ns.cloudflare.comns11.xincache.comns12.xincache.comns15.xincache.comns16.xincache.comA104.21.25.249172.67.134.2422606:4700:3033::ac43:86f22606:4700:3035::6815:19f9183.56.148.29
●NSadrian.ns.cloudflare.com2026-02-22 → 2026-03-26 · 3 obs
○ 2017-06-23 03:45:12
● 2026-02-22 07:45:44
● 2026-03-26 20:15:18
○NSns11.xincache.com2015-06-24 → 2015-06-24 · 3 obs
● 2015-06-24 20:22:58
○ 2015-11-04 04:54:14
○ 2026-03-26 20:15:18
○NSns12.xincache.com2015-06-24 → 2015-06-24 · 3 obs
● 2015-06-24 20:22:58
○ 2015-11-04 04:54:14
○ 2026-03-26 20:15:18
○NSns15.xincache.com2015-11-04 → 2017-06-23 · 5 obs
○ 2015-06-24 20:22:58
● 2015-11-04 04:54:14
● 2017-06-23 03:45:12
○ 2026-02-22 07:45:44
○ 2026-03-26 20:15:18
○NSns16.xincache.com2015-11-04 → 2017-06-23 · 5 obs
○ 2015-06-24 20:22:58
● 2015-11-04 04:54:14
● 2017-06-23 03:45:12
○ 2026-02-22 07:45:44
○ 2026-03-26 20:15:18
●NSsullivan.ns.cloudflare.com2026-02-22 → 2026-03-26 · 3 obs
○ 2017-06-23 03:45:12
● 2026-02-22 07:45:44
● 2026-03-26 20:15:18
●A104.21.25.2492026-02-22 → 2026-03-26 · 3 obs
○ 2017-06-23 03:45:12
● 2026-02-22 07:45:44
● 2026-03-26 20:15:18
●A172.67.134.2422026-02-22 → 2026-03-26 · 3 obs
○ 2017-06-23 03:45:12
● 2026-02-22 07:45:44
● 2026-03-26 20:15:18
○A183.56.148.292015-06-24 → 2017-06-23 · 4 obs
● 2015-06-24 20:22:58
● 2017-06-23 03:45:12
○ 2026-02-22 07:45:44
○ 2026-03-26 20:15:18
●A2606:4700:3033::ac43:86f22026-02-22 → 2026-03-26 · 3 obs
○ 2017-06-23 03:45:12
● 2026-02-22 07:45:44
● 2026-03-26 20:15:18
●A2606:4700:3035::6815:19f92026-02-22 → 2026-03-26 · 3 obs
○ 2017-06-23 03:45:12
● 2026-02-22 07:45:44
● 2026-03-26 20:15:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
421fk.comadrian.ns.cloudflare.com, sullivan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.161

NS records: adrian.ns.cloudflare.com, sullivan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 421fk.com (unsigned zone)

⏱️ Timing

Total: 495ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.134.242, 104.21.25.249
AAAA22606:4700:3035::6815:19f9, 2606:4700:3033::ac43:86f2
NS2adrian.ns.cloudflare.com, sullivan.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1adrian.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of mail.421fk.com is 421fk.com.

IP Addresses

421fk.com maps to four IP numbers: 2606:4700:3033::ac43:86f2, 2606:4700:3035::6815:19f9, 104.21.25.249 and 172.67.134.242.

other host names include domyat.natega-eg.info, tjnfj.com, goldenboys.repage3.de, v3.cakhiatv.is and johnmarshallsquaredance.com; they share IP numbers with 421fk.com.

Name Servers

Two name servers adrian.ns.cloudflare.com and sullivan.ns.cloudflare.com handle the delegation for 421fk.com.

421fk.com shares the same name server setup as other domains, for instance fcpharm.com, themeclue.com, 1351mei.com, fulllinker.com and sspgf.com.

421fk.com at least partially shares name servers with other domains, for instance computerinfoweb.com, yinsochen.com, 13d4.com, ahawks.ru and uinsatu.ac.id.

These name servers are commonly used with the following: tim.ns.cloudflare.com, dahlia.ns.cloudflare.com, sunny.ns.cloudflare.com and steven.ns.cloudflare.com.

Six IP addresses per host:

adrian.ns.cloudflare.com points to 2606:4700:50::adf5:3a39, 2803:f800:50::6ca2:c039, 2a06:98c1:50::ac40:2039, 108.162.192.57, 172.64.32.57 and 173.245.58.57; sullivan.ns.cloudflare.com points to 2606:4700:58::a29f:2ca1, 2803:f800:50::6ca2:c3a1, 2a06:98c1:50::ac40:23a1, 108.162.195.161, 162.159.44.161 and 172.64.35.161