621sf.com - robtex.com

621sf.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:cf6🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:c4c5🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.12.246Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.196.197🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScoraline.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2658🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoraline.ns.cloudflare.com
A2803:f800:50::6ca2:c258🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcoraline.ns.cloudflare.com
A2a06:98c1:50::ac40:2258🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcoraline.ns.cloudflare.com
A108.162.194.88🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoraline.ns.cloudflare.com
A162.159.38.88Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoraline.ns.cloudflare.com
A172.64.34.88🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoraline.ns.cloudflare.com
NSdion.ns.cloudflare.com
A2606:4700:58::adf5:3b9c🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdion.ns.cloudflare.com
A2803:f800:50::6ca2:c19c🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdion.ns.cloudflare.com
A2a06:98c1:50::ac40:219c🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdion.ns.cloudflare.com
A108.162.193.156🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdion.ns.cloudflare.com
A172.64.33.156🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdion.ns.cloudflare.com
A173.245.59.156🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdion.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.12.246, 172.67.196.197
IPv6 hints2606:4700:3032::6815:cf6, 2606:4700:3032::ac43:c4c5
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=166, name=cloudflare-ech.com
SOAcoraline.ns.cloudflare.comdns@cloudflare.com serial=2402346884

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=1778795356

Same first word

621sf.com

Similar names

sf612.top
sf261.com
f216s.xyz
126sf.com
126fs.com
sf126.cn
sf126.com
162sf.com
sf621.com
sf216.top
sf162.com

DNS History

9 records (6 active, 3 former)

2017201820192020202120222023202420252026NScoraline.ns.cloudflare.comdion.ns.cloudflare.comf1g1ns1.dnspod.netf1g1ns2.dnspod.netA104.21.12.246172.67.196.1972606:4700:3032::6815:cf62606:4700:3032::ac43:c4c5192.187.111.117
●NScoraline.ns.cloudflare.com2026-04-25 → 2026-05-14 · 3 obs
○ 2016-12-02 17:58:18
● 2026-04-25 01:20:58
● 2026-05-14 22:00:14
●NSdion.ns.cloudflare.com2026-04-25 → 2026-05-14 · 3 obs
○ 2016-12-02 17:58:18
● 2026-04-25 01:20:58
● 2026-05-14 22:00:14
○NSf1g1ns1.dnspod.net2016-01-04 → 2016-12-02 · 4 obs
● 2016-01-04 19:20:04
● 2016-12-02 17:58:18
○ 2026-04-25 01:20:58
○ 2026-05-14 22:00:14
○NSf1g1ns2.dnspod.net2016-01-04 → 2016-04-02 · 4 obs
● 2016-01-04 19:20:04
● 2016-04-02 10:00:26
○ 2026-04-25 01:20:58
○ 2026-05-14 22:00:14
●A104.21.12.2462026-04-25 → 2026-05-14 · 3 obs
○ 2017-06-23 21:44:14
● 2026-04-25 01:20:58
● 2026-05-14 22:00:14
●A172.67.196.1972026-04-25 → 2026-05-14 · 3 obs
○ 2017-06-23 21:44:14
● 2026-04-25 01:20:58
● 2026-05-14 22:00:14
○A192.187.111.1172016-12-02 → 2017-06-23 · 4 obs
● 2016-12-02 17:58:18
● 2017-06-23 21:44:14
○ 2026-04-25 01:20:58
○ 2026-05-14 22:00:14
●A2606:4700:3032::6815:cf62026-04-25 → 2026-05-14 · 3 obs
○ 2017-06-23 21:44:14
● 2026-04-25 01:20:58
● 2026-05-14 22:00:14
●A2606:4700:3032::ac43:c4c52026-04-25 → 2026-05-14 · 3 obs
○ 2017-06-23 21:44:14
● 2026-04-25 01:20:58
● 2026-05-14 22:00:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, l.gtld-servers.net, c.gtld-servers.net, j.gtld-servers.net...-
621sf.comdion.ns.cloudflare.com, coraline.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.88

NS records: dion.ns.cloudflare.com, coraline.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 621sf.com (unsigned zone)

⏱️ Timing

Total: 319ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.196.197, 104.21.12.246
AAAA22606:4700:3032::ac43:c4c5, 2606:4700:3032::6815:cf6
NS2coraline.ns.cloudflare.com, dion.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1coraline.ns.cloudflare.com dns.cloudflar

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

621sf.com points to four IP numbers: 2606:4700:3032::6815:cf6, 2606:4700:3032::ac43:c4c5, 104.21.12.246 and 172.67.196.197.

Other host names including shehady.us, hcbc.ca, manchester-wireless-society.co.uk, mmg-russia.com and ultimatebettingnetwork.com share IP numbers with 621sf.com.

Name Servers

621sf.com's delegation uses two name servers, coraline.ns.cloudflare.com and dion.ns.cloudflare.com.

621sf.com shares the same name server setup as other domains, for example ljskjm.com, paisleybarbell.com, whatiback.com, fancyvals.com and x-zc.com.

621sf.com at least partially shares name servers with other domains, including ably-realtime.com, 7f1fb.com, vleduo.com, jndongke.com and tigercall.cn.

These name servers are commonly used with josephine.ns.cloudflare.com and rocco.ns.cloudflare.com.

Host names with six IP numbers:

coraline.ns.cloudflare.com points to: 2606:4700:50::a29f:2658, 2803:f800:50::6ca2:c258, 2a06:98c1:50::ac40:2258, 108.162.194.88, 162.159.38.88 and 172.64.34.88.

dion.ns.cloudflare.com points to: 2606:4700:58::adf5:3b9c, 2803:f800:50::6ca2:c19c, 2a06:98c1:50::ac40:219c, 108.162.193.156, 172.64.33.156 and 173.245.59.156.