3f-school.com - robtex.com

3f-school.com

DNSSEC⚠️ Not signed
A2606:4700:3035::6815:2e9c🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:8c6b🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.156Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.140.107🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmeiling.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26fe🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmeiling.ns.cloudflare.com
A2803:f800:50::6ca2:c2fe🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmeiling.ns.cloudflare.com
A2a06:98c1:50::ac40:22fe🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmeiling.ns.cloudflare.com
A108.162.194.254🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmeiling.ns.cloudflare.com
A162.159.38.254Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmeiling.ns.cloudflare.com
A172.64.34.254🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmeiling.ns.cloudflare.com
NSnash.ns.cloudflare.com
A2606:4700:58::adf5:3bd1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnash.ns.cloudflare.com
A2803:f800:50::6ca2:c1d1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnash.ns.cloudflare.com
A2a06:98c1:50::ac40:21d1🇺🇸 Cloudflare2a06:98c1:50::/45
PTRnash.ns.cloudflare.com
A108.162.193.209🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnash.ns.cloudflare.com
A172.64.33.209🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnash.ns.cloudflare.com
A173.245.59.209🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnash.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.46.156, 172.67.140.107
IPv6 hints2606:4700:3035::6815:2e9c, 2606:4700:3036::ac43:8c6b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=165, name=cloudflare-ech.com
SOAmeiling.ns.cloudflare.comdns@cloudflare.com serial=2404406532

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=1782091945
rank #761782 globally
rank #337275 in the tld

Same first word

3f-school.com

DNS History

11 records (6 active, 5 former)

2020202120222023202420252026NSmeiling.ns.cloudflare.comnash.ns.cloudflare.comdm1.dns.comdm2.dns.comA104.21.46.156172.67.140.1072606:4700:3035::6815:2e9c2606:4700:3036::ac43:8c6b2606:4700:3030::6815:2e9c2606:4700:3030::ac43:8c6b45.205.124.123
○NSdm1.dns.com2019-12-18 → 2019-12-18 · 3 obs
● 2019-12-18 20:37:34
○ 2026-05-22 07:07:24
○ 2026-06-22 01:59:50
○NSdm2.dns.com2019-12-18 → 2019-12-18 · 3 obs
● 2019-12-18 20:37:34
○ 2026-05-22 07:07:24
○ 2026-06-22 01:59:50
●NSmeiling.ns.cloudflare.com2026-05-22 → 2026-06-22 · 3 obs
○ 2019-12-18 20:37:34
● 2026-05-22 07:07:24
● 2026-06-22 01:59:50
●NSnash.ns.cloudflare.com2026-05-22 → 2026-06-22 · 3 obs
○ 2019-12-18 20:37:34
● 2026-05-22 07:07:24
● 2026-06-22 01:59:50
●A104.21.46.1562026-05-22 → 2026-06-22 · 3 obs
○ 2019-12-18 20:37:34
● 2026-05-22 07:07:24
● 2026-06-22 01:59:50
●A172.67.140.1072026-05-22 → 2026-06-22 · 3 obs
○ 2019-12-18 20:37:34
● 2026-05-22 07:07:24
● 2026-06-22 01:59:50
○A2606:4700:3030::6815:2e9c2026-05-22 → 2026-06-10 · 4 obs
○ 2019-12-18 20:37:34
● 2026-05-22 07:07:24
● 2026-06-10 20:26:08
○ 2026-06-22 01:59:50
○A2606:4700:3030::ac43:8c6b2026-05-22 → 2026-06-10 · 4 obs
○ 2019-12-18 20:37:34
● 2026-05-22 07:07:24
● 2026-06-10 20:26:08
○ 2026-06-22 01:59:50
●A2606:4700:3035::6815:2e9c2026-06-22 → 2026-06-22 · 2 obs
○ 2026-06-10 20:26:08
● 2026-06-22 01:59:50
●A2606:4700:3036::ac43:8c6b2026-06-22 → 2026-06-22 · 2 obs
○ 2026-06-10 20:26:08
● 2026-06-22 01:59:50
○A45.205.124.1232019-12-18 → 2019-12-18 · 3 obs
● 2019-12-18 20:37:34
○ 2026-05-22 07:07:24
○ 2026-06-22 01:59:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net, f.gtld-servers.net...-
3f-school.comnash.ns.cloudflare.com, meiling.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.209

NS records: nash.ns.cloudflare.com, meiling.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 3f-school.com (unsigned zone)

⏱️ Timing

Total: 214ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.46.156, 172.67.140.107
AAAA22606:4700:3036::ac43:8c6b, 2606:4700:3035::6815:2e9c
NS2meiling.ns.cloudflare.com, nash.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1meiling.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

3f-school.com points to the four IP addresses 104.21.46.156, 172.67.140.107, 2606:4700:3035::6815:2e9c and 2606:4700:3036::ac43:8c6b.

Additional host names — seyahat53.com, jbsfatboy.com, www.shim72.ru and two others — share IP numbers with 3f-school.com.

Name Servers

3f-school.com uses two name servers for its delegation: meiling.ns.cloudflare.com and nash.ns.cloudflare.com.

3f-school.com shares its name server setup with other domains, including setuptab.com, eduardobravoq.com, 12580110.com and two others.

The name servers of 3f-school.com overlap at least partially with those of other domains — among them masterflex.be, civitasaction.org, 866wan.com and two more.

The name servers vasilii.ns.cloudflare.com, aspen.ns.cloudflare.com and theo.ns.cloudflare.com are commonly seen alongside these name servers.

Host names with 6 IP numbers:

Hostname meiling.ns.cloudflare.com directs to 108.162.194.254, 162.159.38.254 and 172.64.34.254 along with 3 other IP addresses.

Hostname nash.ns.cloudflare.com directs to 108.162.193.209, 172.64.33.209 and 173.245.59.209 along with 3 other IP addresses.