ffff.nu - robtex.com

ffff.nu

DNSSEC🔒 Signed (DS record present)
A2606:4700:3031::6815:1d2d🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:9460🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.29.45Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.148.96🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSprimary.ns.hostup.se ⭐
A2400:cb00:2049:1::c629:de87🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A198.41.222.135Cloudflare198.41.222.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcf-198-41-222-135.cloudflare.com
NSsecondary.ns.hostup.se
A2400:cb00:2049:1::a29f:8a3🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.8.163Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.29.45, 172.67.148.96
IPv62606:4700:3031::6815:1d2d, 2606:4700:3032::ac43:9460
SOAprimary.ns.hostup.sedns@cloudflare.com serial=2399226319

nu

DNSSEC🔒 Signed (DS record present)
NScatcher-in-the-rye.nic.nu ⭐ 🔒
NSa.ns.nu 🔒
NSc.ns.nu 🔒
NSd.ns.nu 🔒
NSm.ns.nu 🔒
NSy.ns.nu 🔒
NSz.ns.nu 🔒
TXTid:f7ff97f5-bf95-4f58-8c35-f729a6390f96
TXTNU zone update: 2026-02-17 01:10:58 +0000 (EPOCH 1771290658) (auto)
SOAcatcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1771290745

Same first word

ffff.li
ffff.co.uk
ffff.spdns.de
ffff.ws
ffff.mobi
ffff.co.kr
ffff.dk
ffff.nu
ffff.su
ffff.fr
ffff.nl
ffff.us
ffff.run
ffff.gq
ffff.lt
ffff.im
ffff.tv
ffff.studio
ffff.wtf
ffff.com
ffff.ru
ffff.co
ffff.de
ffff.it

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026NSprimary.ns.hostup.sesecondary.ns.hostup.sens1.loopia.sens2.loopia.sens3.binero.sens4.binero.sens5.binero.sens6.binero.sens7.binero.seA104.21.29.45172.67.148.962606:4700:3031::6815:1d2d2606:4700:3032::ac43:9460178.73.246.172194.9.94.85194.9.94.86
○NSns1.loopia.se2015-11-08 → 2016-02-12 · 4 obs
● 2015-11-08 21:57:30
● 2016-02-12 07:04:36
○ 2016-09-09 00:55:22
○ 2026-03-24 01:03:22
○NSns2.loopia.se2015-11-08 → 2016-02-12 · 4 obs
● 2015-11-08 21:57:30
● 2016-02-12 07:04:36
○ 2016-09-09 00:55:22
○ 2026-03-24 01:03:22
○NSns3.binero.se2019-04-03 → 2019-04-03 · 4 obs
○ 2016-09-09 00:55:22
● 2019-04-03 22:42:06
○ 2026-03-10 21:28:38
○ 2026-03-24 01:03:22
○NSns4.binero.se2019-04-03 → 2019-04-03 · 4 obs
○ 2016-09-09 00:55:22
● 2019-04-03 22:42:06
○ 2026-03-10 21:28:38
○ 2026-03-24 01:03:22
○NSns5.binero.se2019-04-03 → 2019-04-03 · 4 obs
○ 2016-09-09 00:55:22
● 2019-04-03 22:42:06
○ 2026-03-10 21:28:38
○ 2026-03-24 01:03:22
○NSns6.binero.se2019-04-03 → 2019-04-03 · 4 obs
○ 2016-09-09 00:55:22
● 2019-04-03 22:42:06
○ 2026-03-10 21:28:38
○ 2026-03-24 01:03:22
○NSns7.binero.se2019-04-03 → 2019-04-03 · 4 obs
○ 2016-09-09 00:55:22
● 2019-04-03 22:42:06
○ 2026-03-10 21:28:38
○ 2026-03-24 01:03:22
●NSprimary.ns.hostup.se2026-03-10 → 2026-03-24 · 3 obs
○ 2019-04-03 22:42:06
● 2026-03-10 21:28:38
● 2026-03-24 01:03:22
●NSsecondary.ns.hostup.se2026-03-10 → 2026-03-24 · 3 obs
○ 2019-04-03 22:42:06
● 2026-03-10 21:28:38
● 2026-03-24 01:03:22
●A104.21.29.452026-03-10 → 2026-03-24 · 3 obs
○ 2019-04-03 22:42:06
● 2026-03-10 21:28:38
● 2026-03-24 01:03:22
●A172.67.148.962026-03-10 → 2026-03-24 · 3 obs
○ 2019-04-03 22:42:06
● 2026-03-10 21:28:38
● 2026-03-24 01:03:22
○A178.73.246.1722019-04-03 → 2019-04-03 · 4 obs
○ 2016-09-09 00:55:22
● 2019-04-03 22:42:06
○ 2026-03-10 21:28:38
○ 2026-03-24 01:03:22
○A194.9.94.852015-11-08 → 2016-02-12 · 4 obs
● 2015-11-08 21:57:30
● 2016-02-12 07:04:36
○ 2016-09-09 00:55:22
○ 2026-03-24 01:03:22
○A194.9.94.862015-11-08 → 2016-02-12 · 4 obs
● 2015-11-08 21:57:30
● 2016-02-12 07:04:36
○ 2016-09-09 00:55:22
○ 2026-03-24 01:03:22
●A2606:4700:3031::6815:1d2d2026-03-10 → 2026-03-24 · 3 obs
○ 2019-04-03 22:42:06
● 2026-03-10 21:28:38
● 2026-03-24 01:03:22
●A2606:4700:3032::ac43:94602026-03-10 → 2026-03-24 · 3 obs
○ 2019-04-03 22:42:06
● 2026-03-10 21:28:38
● 2026-03-24 01:03:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nua.ns.nu, c.ns.nu, d.ns.nu, m.ns.nu...12 records
ffff.nuprimary.ns.hostup.se, secondary.ns.hostup.se-

✅ Authoritative Response

Server:162.159.8.163

NS records: primary.ns.hostup.se, secondary.ns.hostup.se

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1516ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.148.96, 104.21.29.45
AAAA22606:4700:3032::ac43:9460, 2606:4700:3031::6815:1d2d
NS2primary.ns.hostup.se, secondary.ns.hostup.se
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1primary.ns.hostup.se dns.cloudflare.com

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.ns.nu, c.ns.nu, d.ns.nu...)

Analysis

IP Addresses

ffff.nu resolves to four IP numbers: 2606:4700:3031::6815:1d2d, 2606:4700:3032::ac43:9460, 104.21.29.45 and 172.67.148.96.

Other host names such as zjcdt.com, syz-espaceclient.com, eerdekens.com, avtonomenergo.com.ua and javierhermosa.com share IPs with ffff.nu.

Name Servers

ffff.nu is delegated to two name servers: primary.ns.hostup.se and secondary.ns.hostup.se.

ffff.nu shares the same name server setup as rillo.nu, diamed.se, mscc.se, from.nu and gabysjostrom.se.

ffff.nu partially shares its name servers with other domains, for example gasspis.se, sadel.se and se7.se.

these name servers are commonly used with ns1.hostup.se, ns2.hostup.se, ns3.hostup.se and ns4.hostup.se.

Host names with two IP numbers: primary.ns.hostup.se points to: 2400:cb00:2049:1::c629:de87 and 198.41.222.135; secondary.ns.hostup.se points to: 2400:cb00:2049:1::a29f:8a3 and 162.159.8.163.