🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`undefinedfunction.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:56bb^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:dfba^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.86.187^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.223.186^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`barbara.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`barbara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`barbara.ns.cloudflare.com`
		A	108.162.192.248^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	172.64.32.248^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	173.245.58.248^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
NS	`marek.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marek.ns.cloudflare.com`
		A	108.162.193.202^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	172.64.33.202^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	173.245.59.202^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.86.187, 172.67.223.186
		IPv6 hints	2606:4700:3030::6815:56bb, 2606:4700:3034::ac43:dfba
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=144, name=cloudflare-ech.com
SOA	`barbara.ns.cloudflare.com`dns@cloudflare.com serial=2413653635

`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=1788268464

Same first word

undefinedfunction.org

undefinedfunction.ph

Similar names

functionundefined.com

Previous names

Next names

DNS History

18 records (6 active, 12 former)

○NSa.ns.zerigo.net2015-06-07 → 2017-04-10 · 4 obs

● 2015-06-07 21:31:22
● 2017-04-10 08:10:14
○ 2026-05-19 16:39:58
○ 2026-09-01 13:40:30

○NSb.ns.zerigo.net2015-06-07 → 2017-04-10 · 4 obs

● 2015-06-07 21:31:22
● 2017-04-10 08:10:14
○ 2026-05-19 16:39:58
○ 2026-09-01 13:40:30

●NSbarbara.ns.cloudflare.com2026-05-19 → 2026-09-01 · 3 obs

○ 2017-04-10 08:10:14
● 2026-05-19 16:39:58
● 2026-09-01 13:40:30

○NSc.ns.zerigo.net2015-06-07 → 2017-04-10 · 4 obs

● 2015-06-07 21:31:22
● 2017-04-10 08:10:14
○ 2026-05-19 16:39:58
○ 2026-09-01 13:40:30

○NSd.ns.zerigo.net2015-06-07 → 2017-04-10 · 4 obs

● 2015-06-07 21:31:22
● 2017-04-10 08:10:14
○ 2026-05-19 16:39:58
○ 2026-09-01 13:40:30

○NSe.ns.zerigo.net2015-06-07 → 2017-04-10 · 4 obs

● 2015-06-07 21:31:22
● 2017-04-10 08:10:14
○ 2026-05-19 16:39:58
○ 2026-09-01 13:40:30

●NSmarek.ns.cloudflare.com2026-05-19 → 2026-09-01 · 3 obs

○ 2017-04-10 08:10:14
● 2026-05-19 16:39:58
● 2026-09-01 13:40:30

●A104.21.86.1872026-05-19 → 2026-09-01 · 10 obs

○ 2017-04-10 08:10:14
● 2026-05-19 16:39:58
● 2026-06-16 17:01:20
○ 2026-06-24 03:18:00
● 2026-07-17 03:06:50
○ 2026-07-23 08:33:18
● 2026-08-21 21:21:36
○ 2026-08-26 01:36:36
● 2026-08-29 10:13:12
● 2026-09-01 13:40:30

●A172.67.223.1862026-05-19 → 2026-09-01 · 10 obs

○A188.114.96.02026-06-24 → 2026-08-26 · 8 obs

○ 2026-06-16 17:01:20
● 2026-06-24 03:18:00
○ 2026-07-17 03:06:50
● 2026-07-23 08:33:18
○ 2026-08-21 21:21:36
● 2026-08-26 01:36:36
○ 2026-08-29 10:13:12
○ 2026-09-01 13:40:30

○A188.114.97.02026-06-24 → 2026-08-26 · 8 obs

○ 2026-06-16 17:01:20
● 2026-06-24 03:18:00
○ 2026-07-17 03:06:50
● 2026-07-23 08:33:18
○ 2026-08-21 21:21:36
● 2026-08-26 01:36:36
○ 2026-08-29 10:13:12
○ 2026-09-01 13:40:30

●A2606:4700:3030::6815:56bb2026-07-17 → 2026-09-01 · 7 obs

○ 2026-06-24 03:18:00
● 2026-07-17 03:06:50
○ 2026-07-23 08:33:18
● 2026-08-21 21:21:36
○ 2026-08-26 01:36:36
● 2026-08-29 10:13:12
● 2026-09-01 13:40:30

○A2606:4700:3033::6815:56bb2026-05-19 → 2026-06-16 · 5 obs

○ 2017-04-10 08:10:14
● 2026-05-19 16:39:58
● 2026-06-16 17:01:20
○ 2026-06-24 03:18:00
○ 2026-09-01 13:40:30

●A2606:4700:3034::ac43:dfba2026-07-17 → 2026-09-01 · 7 obs

○ 2026-06-24 03:18:00
● 2026-07-17 03:06:50
○ 2026-07-23 08:33:18
● 2026-08-21 21:21:36
○ 2026-08-26 01:36:36
● 2026-08-29 10:13:12
● 2026-09-01 13:40:30

○A2606:4700:3036::ac43:dfba2026-05-19 → 2026-06-16 · 5 obs

○ 2017-04-10 08:10:14
● 2026-05-19 16:39:58
● 2026-06-16 17:01:20
○ 2026-06-24 03:18:00
○ 2026-09-01 13:40:30

○A2a06:98c1:3120::2026-06-24 → 2026-08-26 · 8 obs

○ 2026-06-16 17:01:20
● 2026-06-24 03:18:00
○ 2026-07-17 03:06:50
● 2026-07-23 08:33:18
○ 2026-08-21 21:21:36
● 2026-08-26 01:36:36
○ 2026-08-29 10:13:12
○ 2026-09-01 13:40:30

○A2a06:98c1:3121::2026-06-24 → 2026-08-26 · 8 obs

○ 2026-06-16 17:01:20
● 2026-06-24 03:18:00
○ 2026-07-17 03:06:50
● 2026-07-23 08:33:18
○ 2026-08-21 21:21:36
● 2026-08-26 01:36:36
○ 2026-08-29 10:13:12
○ 2026-09-01 13:40:30

○A71.37.90.1462015-06-07 → 2017-04-10 · 4 obs

● 2015-06-07 21:31:22
● 2017-04-10 08:10:14
○ 2026-05-19 16:39:58
○ 2026-09-01 13:40:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
undefinedfunction.org	barbara.ns.cloudflare.com, marek.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.202

NS records: barbara.ns.cloudflare.com, marek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for undefinedfunction.org (unsigned zone)

⏱️ Timing

Total: 606ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.223.186, 104.21.86.187`
AAAA	2	`2606:4700:3030::6815:56bb, 2606:4700:3034::ac43:dfba`
NS	2	`barbara.ns.cloudflare.com, marek.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`barbara.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

undefinedfunction.org has four IP addresses: 104.21.86.187, 172.67.223.186, 2606:4700:3030::6815:56bb and 2606:4700:3034::ac43:dfba.

Two other host names, along with altynbek.com, naturalremedieshub.store and dimamachina.com, also share IP numbers with undefinedfunction.org.

Name Servers

undefinedfunction.org uses two name servers for its delegation: barbara.ns.cloudflare.com and marek.ns.cloudflare.com.

undefinedfunction.org shares its NS records with other domains, for example saioredirect.pages.dev, enviro-mer.ca, seaweedcannabis.ca and two others.

undefinedfunction.org shares at least some of its name servers with other domains, including austincoverband.com, bellapizzeriama.com, q8tyea.pages.dev and two others.

These name servers are frequently paired with the name servers rodney.ns.cloudflare.com and mark.ns.cloudflare.com.

DNS names with 6 IP addresses:

Hostname barbara.ns.cloudflare.com directs to 108.162.192.248, 172.64.32.248 and 173.245.58.248 along with 3 other IP addresses.

Hostname marek.ns.cloudflare.com directs to 108.162.193.202, 172.64.33.202 and 173.245.59.202 along with 3 other IP addresses.

undefinedfunction.org - robtex.com