`f1u.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:bf6d^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:4c53^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.76.83^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.191.109^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elijah.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfd^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elijah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fd^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elijah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fd^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elijah.ns.cloudflare.com`
		A	108.162.195.253^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elijah.ns.cloudflare.com`
		A	162.159.44.253^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elijah.ns.cloudflare.com`
		A	172.64.35.253^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elijah.ns.cloudflare.com`
NS	`nadia.ns.cloudflare.com`
		A	2606:4700:50::adf5:3acf^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nadia.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0cf^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nadia.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20cf^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nadia.ns.cloudflare.com`
		A	108.162.192.207^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nadia.ns.cloudflare.com`
		A	172.64.32.207^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nadia.ns.cloudflare.com`
		A	173.245.58.207^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nadia.ns.cloudflare.com`
MX	`mail.f1u.org` ⭐
		A	2606:4700:130:436c:6f75:6466:6c61:7265^{🇺🇸 Cloudflare2606:4700:130::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	104.21.76.83^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.67.191.109^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.76.83, 172.67.191.109
		IPv6	2606:4700:3033::ac43:bf6d, 2606:4700:3036::6815:4c53
SOA	`elijah.ns.cloudflare.com`dns@cloudflare.com serial=2395370965

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1771291736

Subdomains

mail.f1u.org

www.f1u.org

Same first word

f1u.org

f1u.net

f1u.de

f1u.com

f1u.ru

Similar names

1fu.de

1uf.com

1fu.ru

fu1.de

1fu.cn

uf1.cn

fu1.net

fu1.com

1fu.com

fu1.cn

u1f.cn

fu1.org

fu1.ru

uf1.de

1uf.ru

uf1.nz

1fu.li

uf1.ru

u1f.org

uf1.org

1fu.net

uf1.com

u1f.com

1uf.de

u1f.info

DNS History

21 records (7 active, 14 former)

●NSelijah.ns.cloudflare.com2026-02-21 → 2026-03-09 · 3 obs

○ 2020-01-27 16:49:46
● 2026-02-21 02:20:40
● 2026-03-09 07:12:10

●NSnadia.ns.cloudflare.com2026-02-21 → 2026-03-09 · 3 obs

○ 2020-01-27 16:49:46
● 2026-02-21 02:20:40
● 2026-03-09 07:12:10

○NSns1.beget.com2017-03-16 → 2017-03-16 · 4 obs

○ 2016-07-03 15:06:20
● 2017-03-16 00:41:02
○ 2020-01-27 16:49:46
○ 2026-03-09 07:12:10

○NSns1.beget.pro2015-08-19 → 2017-03-16 · 4 obs

● 2015-08-19 08:35:52
● 2017-03-16 00:41:02
○ 2020-01-27 16:49:46
○ 2026-03-09 07:12:10

○NSns1.beget.ru2015-08-19 → 2016-07-03 · 4 obs

● 2015-08-19 08:35:52
● 2016-07-03 15:06:20
○ 2017-03-16 00:41:02
○ 2026-03-09 07:12:10

○NSns2.beget.com2017-03-16 → 2017-03-16 · 4 obs

○ 2016-07-03 15:06:20
● 2017-03-16 00:41:02
○ 2020-01-27 16:49:46
○ 2026-03-09 07:12:10

○NSns2.beget.pro2015-08-19 → 2017-03-16 · 4 obs

● 2015-08-19 08:35:52
● 2017-03-16 00:41:02
○ 2020-01-27 16:49:46
○ 2026-03-09 07:12:10

○NSns2.beget.ru2015-08-19 → 2016-07-03 · 4 obs

● 2015-08-19 08:35:52
● 2016-07-03 15:06:20
○ 2017-03-16 00:41:02
○ 2026-03-09 07:12:10

●MXmail.f1u.org2026-02-21 → 2026-03-09 · 3 obs

○ 2020-01-27 16:49:46
● 2026-02-21 02:20:40
● 2026-03-09 07:12:10

○MXmx1.beget.ru2015-08-19 → 2017-03-16 · 4 obs

● 2015-08-19 08:35:52
● 2017-03-16 00:41:02
○ 2020-01-27 16:49:46
○ 2026-03-09 07:12:10

○MXmx2.beget.ru2015-08-19 → 2017-03-16 · 4 obs

● 2015-08-19 08:35:52
● 2017-03-16 00:41:02
○ 2020-01-27 16:49:46
○ 2026-03-09 07:12:10

●A104.21.76.832026-02-22 → 2026-03-09 · 5 obs

○ 2026-02-21 02:20:40
● 2026-02-22 01:11:34
○ 2026-03-03 07:44:08
● 2026-03-09 00:32:32
● 2026-03-09 07:12:10

●A172.67.191.1092026-02-22 → 2026-03-09 · 5 obs

○ 2026-02-21 02:20:40
● 2026-02-22 01:11:34
○ 2026-03-03 07:44:08
● 2026-03-09 00:32:32
● 2026-03-09 07:12:10

○A188.114.96.02026-02-21 → 2026-03-03 · 6 obs

○ 2020-01-27 16:49:46
● 2026-02-21 02:20:40
○ 2026-02-22 01:11:34
● 2026-03-03 07:44:08
○ 2026-03-09 00:32:32
○ 2026-03-09 07:12:10

○A188.114.97.02026-02-21 → 2026-03-03 · 6 obs

○ 2020-01-27 16:49:46
● 2026-02-21 02:20:40
○ 2026-02-22 01:11:34
● 2026-03-03 07:44:08
○ 2026-03-09 00:32:32
○ 2026-03-09 07:12:10

●A2606:4700:3033::ac43:bf6d2026-02-22 → 2026-03-09 · 5 obs

○ 2026-02-21 02:20:40
● 2026-02-22 01:11:34
○ 2026-03-03 07:44:08
● 2026-03-09 00:32:32
● 2026-03-09 07:12:10

●A2606:4700:3036::6815:4c532026-02-22 → 2026-03-09 · 5 obs

○ 2026-02-21 02:20:40
● 2026-02-22 01:11:34
○ 2026-03-03 07:44:08
● 2026-03-09 00:32:32
● 2026-03-09 07:12:10

○A2a06:98c1:3120::2026-02-21 → 2026-03-03 · 6 obs

○ 2020-01-27 16:49:46
● 2026-02-21 02:20:40
○ 2026-02-22 01:11:34
● 2026-03-03 07:44:08
○ 2026-03-09 00:32:32
○ 2026-03-09 07:12:10

○A2a06:98c1:3121::2026-02-21 → 2026-03-03 · 6 obs

○ 2020-01-27 16:49:46
● 2026-02-21 02:20:40
○ 2026-02-22 01:11:34
● 2026-03-03 07:44:08
○ 2026-03-09 00:32:32
○ 2026-03-09 07:12:10

○A5.101.153.202015-08-19 → 2016-07-03 · 4 obs

● 2015-08-19 08:35:52
● 2016-07-03 15:06:20
○ 2017-03-16 00:41:02
○ 2026-03-09 07:12:10

○A87.236.19.1432017-03-16 → 2017-03-16 · 4 obs

○ 2016-07-03 15:06:20
● 2017-03-16 00:41:02
○ 2020-01-27 16:49:46
○ 2026-03-09 07:12:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org	-
f1u.org	elijah.ns.cloudflare.com, nadia.ns.cloudflare.com	-

✅ Authoritative Response

Server: 108.162.192.207

NS records: elijah.ns.cloudflare.com, nadia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for f1u.org (unsigned zone)

⏱️ Timing

Total: 389ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.76.83, 172.67.191.109`
AAAA	2	`2606:4700:3036::6815:4c53, 2606:4700:3033::ac43:bf6d`
NS	2	`elijah.ns.cloudflare.com, nadia.ns.cloudflare.com`
MX	1	`mail.f1u.org (pri: 1)`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elijah.ns.cloudflare.com dns.cloudflare.`

Analysis

Hierarchy

f1u.org is parent of mail.f1u.org and www.f1u.org.

IP Addresses

f1u.org points to four IP numbers: 2606:4700:3033::ac43:bf6d, 2606:4700:3036::6815:4c53, 104.21.76.83 and 172.67.191.109.

Other host names including leonardo-hotels-greece.com, giovannigelardi.com, culturalivre.com, www.okey.dk and shemaletreff.com share IP numbers with f1u.org.

Name Servers

f1u.org's delegation uses two name servers, elijah.ns.cloudflare.com and nadia.ns.cloudflare.com.

f1u.org uses the same name server setup as jovencitas.gratis and knottfoundation.org and meditationinnewyork.org.

f1u.org at least partially shares name servers with other domains, including caleatoxic.org, thelotter.ec, aceb.com, booking-reservation625482121.com and teratoriumonline.net.

These name servers are commonly used with dakota.ns.cloudflare.com and uma.ns.cloudflare.com.

Host names with six IP numbers:

elijah.ns.cloudflare.com points to: 2606:4700:58::a29f:2cfd, 2803:f800:50::6ca2:c3fd, 2a06:98c1:50::ac40:23fd, 108.162.195.253, 162.159.44.253 and 172.64.35.253.

nadia.ns.cloudflare.com points to: 2606:4700:50::adf5:3acf, 2803:f800:50::6ca2:c0cf, 2a06:98c1:50::ac40:20cf, 108.162.192.207, 172.64.32.207 and 173.245.58.207.

Mail Servers

f1u.org is handled by a single mail server, mail.f1u.org.

mail.f1u.org points to three IPs: 2606:4700:130:436c:6f75:6466:6c61:7265, 104.21.76.83 and 172.67.191.109.

f1u.org - robtex.com

f1u.org

org

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`f1u.org`

`org`