duda.work - dns.ninja

`duda.work`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700:3035::6815:1723^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:d0c9^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.23.35^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.208.201^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`asa.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`asa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`asa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`asa.ns.cloudflare.com`
		A	108.162.192.246^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`asa.ns.cloudflare.com`
		A	172.64.32.246^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`asa.ns.cloudflare.com`
		A	173.245.58.246^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`asa.ns.cloudflare.com`
NS	`darl.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b62^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`darl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c162^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`darl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2162^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`darl.ns.cloudflare.com`
		A	108.162.193.98^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`darl.ns.cloudflare.com`
		A	172.64.33.98^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`darl.ns.cloudflare.com`
		A	173.245.59.98^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`darl.ns.cloudflare.com`
MX	`mail.coolomet.cz` ⭐
TXT	`keybase-site-verification=1FpBA5Uw4AoMzP7juEPECfD_6e8Mp3jfRk95iUfNp1I`
TXT	`v=spf1 mx a ptr -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.23.35, 172.67.208.201
		IPv6 hints	2606:4700:3035::6815:1723, 2606:4700:3036::ac43:d0c9
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=99, name=cloudflare-ech.com
SOA	`asa.ns.cloudflare.com`dns@cloudflare.com serial=2407279089

`work`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.work` ⭐
	NS	`b.nic.work`
	NS	`c.nic.work`
	NS	`x.nic.work`
	NS	`y.nic.work`
	NS	`z.nic.work`
	SOA	`a.nic.work`admin@tldns.godaddy serial=1782303517

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DNS History

19 records (7 active, 12 former)

●NSasa.ns.cloudflare.com2026-03-08 → 2026-06-24 · 3 obs

○ 2017-07-07 11:55:24
● 2026-03-08 20:50:28
● 2026-06-24 12:35:26

●NSdarl.ns.cloudflare.com2026-03-08 → 2026-06-24 · 3 obs

○ 2017-07-07 11:55:24
● 2026-03-08 20:50:28
● 2026-06-24 12:35:26

○NSns1.linode.com2016-12-13 → 2017-07-07 · 4 obs

● 2016-12-13 04:12:46
● 2017-07-07 11:55:24
○ 2026-03-08 20:50:28
○ 2026-06-24 12:35:26

○NSns2.linode.com2016-12-13 → 2017-07-07 · 4 obs

● 2016-12-13 04:12:46
● 2017-07-07 11:55:24
○ 2026-03-08 20:50:28
○ 2026-06-24 12:35:26

○NSns3.linode.com2016-12-13 → 2017-07-07 · 4 obs

● 2016-12-13 04:12:46
● 2017-07-07 11:55:24
○ 2026-03-08 20:50:28
○ 2026-06-24 12:35:26

○NSns4.linode.com2016-12-13 → 2017-07-07 · 4 obs

● 2016-12-13 04:12:46
● 2017-07-07 11:55:24
○ 2026-03-08 20:50:28
○ 2026-06-24 12:35:26

○NSns5.linode.com2016-12-13 → 2017-07-07 · 4 obs

● 2016-12-13 04:12:46
● 2017-07-07 11:55:24
○ 2026-03-08 20:50:28
○ 2026-06-24 12:35:26

○MXcoolomet.cz2016-12-13 → 2017-07-07 · 4 obs

● 2016-12-13 04:12:46
● 2017-07-07 11:55:24
○ 2026-03-08 20:50:28
○ 2026-06-24 12:35:26

●MXmail.coolomet.cz2026-03-08 → 2026-06-24 · 3 obs

○ 2017-07-07 11:55:24
● 2026-03-08 20:50:28
● 2026-06-24 12:35:26

●A104.21.23.352026-06-03 → 2026-06-24 · 5 obs

○ 2026-05-07 19:42:58
● 2026-06-03 22:49:04
○ 2026-06-04 07:11:54
● 2026-06-17 20:36:42
● 2026-06-24 12:35:26

●A172.67.208.2012026-06-03 → 2026-06-24 · 5 obs

○ 2026-05-07 19:42:58
● 2026-06-03 22:49:04
○ 2026-06-04 07:11:54
● 2026-06-17 20:36:42
● 2026-06-24 12:35:26

○A176.58.127.1292016-12-13 → 2017-07-07 · 4 obs

● 2016-12-13 04:12:46
● 2017-07-07 11:55:24
○ 2026-03-08 20:50:28
○ 2026-06-24 12:35:26

○A188.114.96.02026-03-08 → 2026-06-04 · 7 obs

○ 2017-07-07 11:55:24
● 2026-03-08 20:50:28
● 2026-05-07 19:42:58
○ 2026-06-03 22:49:04
● 2026-06-04 07:11:54
○ 2026-06-17 20:36:42
○ 2026-06-24 12:35:26

○A188.114.97.02026-03-08 → 2026-06-04 · 7 obs

○ 2017-07-07 11:55:24
● 2026-03-08 20:50:28
● 2026-05-07 19:42:58
○ 2026-06-03 22:49:04
● 2026-06-04 07:11:54
○ 2026-06-17 20:36:42
○ 2026-06-24 12:35:26

●A2606:4700:3035::6815:17232026-06-03 → 2026-06-24 · 5 obs

○ 2026-05-07 19:42:58
● 2026-06-03 22:49:04
○ 2026-06-04 07:11:54
● 2026-06-17 20:36:42
● 2026-06-24 12:35:26

●A2606:4700:3036::ac43:d0c92026-06-03 → 2026-06-24 · 5 obs

○ 2026-05-07 19:42:58
● 2026-06-03 22:49:04
○ 2026-06-04 07:11:54
● 2026-06-17 20:36:42
● 2026-06-24 12:35:26

○A2a01:7e00::f03c:91ff:fe70:bfdb2016-12-13 → 2017-07-07 · 4 obs

● 2016-12-13 04:12:46
● 2017-07-07 11:55:24
○ 2026-03-08 20:50:28
○ 2026-06-24 12:35:26

○A2a06:98c1:3120::2026-03-08 → 2026-06-04 · 7 obs

○ 2017-07-07 11:55:24
● 2026-03-08 20:50:28
● 2026-05-07 19:42:58
○ 2026-06-03 22:49:04
● 2026-06-04 07:11:54
○ 2026-06-17 20:36:42
○ 2026-06-24 12:35:26

○A2a06:98c1:3121::2026-03-08 → 2026-06-04 · 7 obs

○ 2017-07-07 11:55:24
● 2026-03-08 20:50:28
● 2026-05-07 19:42:58
○ 2026-06-03 22:49:04
● 2026-06-04 07:11:54
○ 2026-06-17 20:36:42
○ 2026-06-24 12:35:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
work	a.nic.work, b.nic.work, c.nic.work, x.nic.work...	12 records
duda.work	darl.ns.cloudflare.com, asa.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.246

NS records: darl.ns.cloudflare.com, asa.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 458ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.208.201, 104.21.23.35`
AAAA	2	`2606:4700:3036::ac43:d0c9, 2606:4700:3035::6815:1723`
NS	2	`asa.ns.cloudflare.com, darl.ns.cloudflare.com`
MX	1	`mail.coolomet.cz (pri: 10)`
TXT	2	`keybase-site-verification=1FpBA5Uw4AoMzP, v=spf1 mx a ptr -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`asa.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.work, b.nic.work, c.nic.work...)

Analysis

IP Addresses

duda.work has four IP addresses: 104.21.23.35, 172.67.208.201, 2606:4700:3035::6815:1723 and 2606:4700:3036::ac43:d0c9.

www.grcee.com, casino-amonbet.fr, nebo.advayta.org and two other host names share IP numbers with duda.work.

Name Servers

duda.work uses two name servers for its delegation: asa.ns.cloudflare.com and darl.ns.cloudflare.com.

duda.work uses the same name servers as several other domains — among them gungroups.org, obituarypage.net, memorialplaces.com and two more.

duda.work shares at least some of its name servers with other domains, including hockeygiant.com, nitrograph.foundation, onlinecasinos77cc.com and two others.

These name servers are frequently paired with the name servers rosa.ns.cloudflare.com and dilbert.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

Hostname asa.ns.cloudflare.com directs to 108.162.192.246, 172.64.32.246 and 173.245.58.246 along with 3 other IP addresses.

Hostname darl.ns.cloudflare.com directs to 108.162.193.98, 172.64.33.98 and 173.245.59.98 along with 3 other IP addresses.

Mail Servers

Mail for duda.work is handled by a single mail server, mail.coolomet.cz.

duda.work shares its mail server configuration with other domains, such as vookimedlo.cz and coolomet.cz.