`mathmodelling.org`

DNSSEC	⚠️ Not signed
A	158.69.195.181^{🇨🇦 OVH158.69.0.0/16 Hosting route}
		PTR	`vps-13c5ec73.vps.ovh.ca`
NS	`curitiba.ns.porkbun.com` ⭐
		A	2400:cb00:2049:1::adf5:3a25^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	173.245.58.37^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-173-245-58-37.defastlink.net`
NS	`fortaleza.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:88c^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.8.140^{Cloudflare162.159.8.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-8-140.defastlink.net`
NS	`maceio.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:bb4^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.11.180^{Cloudflare162.159.11.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-11-180.defastlink.net`
NS	`salvador.ns.porkbun.com`
		A	2400:cb00:2049:1::a29f:a96^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.150^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-10-150.defastlink.net`
SOA	`curitiba.ns.porkbun.com`dns@cloudflare.com serial=2389327960

`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=1773551953

Same first word

mathmodelling.org

DNS History

21 records (5 active, 16 former)

●NScuritiba.ns.porkbun.com2026-03-22 → 2026-03-23 · 3 obs

○ 2017-03-28 19:44:24
● 2026-03-22 01:46:30
● 2026-03-23 09:41:52

○NSdns1.name-services.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○NSdns2.name-services.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○NSdns3.name-services.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○NSdns4.name-services.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○NSdns5.name-services.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

●NSfortaleza.ns.porkbun.com2026-03-22 → 2026-03-23 · 3 obs

○ 2017-03-28 19:44:24
● 2026-03-22 01:46:30
● 2026-03-23 09:41:52

●NSmaceio.ns.porkbun.com2026-03-22 → 2026-03-23 · 3 obs

○ 2017-03-28 19:44:24
● 2026-03-22 01:46:30
● 2026-03-23 09:41:52

●NSsalvador.ns.porkbun.com2026-03-22 → 2026-03-23 · 3 obs

○ 2017-03-28 19:44:24
● 2026-03-22 01:46:30
● 2026-03-23 09:41:52

○MXalt1.aspmx.l.google.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○MXalt2.aspmx.l.google.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○MXaspmx.l.google.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○MXaspmx2.googlemail.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○MXaspmx3.googlemail.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○MXaspmx4.googlemail.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○MXaspmx5.googlemail.com2015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

●A158.69.195.1812026-03-22 → 2026-03-23 · 3 obs

○ 2017-03-28 19:44:24
● 2026-03-22 01:46:30
● 2026-03-23 09:41:52

○A216.239.32.212015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○A216.239.34.212015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○A216.239.36.212015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

○A216.239.38.212015-05-13 → 2017-03-28 · 4 obs

● 2015-05-13 18:15:08
● 2017-03-28 19:44:24
○ 2026-03-22 01:46:30
○ 2026-03-23 09:41:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
mathmodelling.org	maceio.ns.porkbun.com, salvador.ns.porkbun.com, curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com	-

✅ Authoritative Response

Server:162.159.8.140

NS records: maceio.ns.porkbun.com, salvador.ns.porkbun.com, curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathmodelling.org (unsigned zone)

⏱️ Timing

Total: 243ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`158.69.195.181`
NS	4	`curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com...`
SOA	1	`curitiba.ns.porkbun.com dns.cloudflare.c`

Analysis

IP Addresses

mathmodelling.org points to a single IP number: 158.69.195.181.

Other host names, for instance troop617.org, oaklandonyouth.org, educational.science.lessons.on.canvas.wefta2013.org, suaump.org and pbronline.org share IP numbers with mathmodelling.org.

Name Servers

mathmodelling.org is delegated to four name servers: curitiba.ns.porkbun.com, fortaleza.ns.porkbun.com, maceio.ns.porkbun.com and salvador.ns.porkbun.com.

mathmodelling.org at least partially shares name servers with other domains, for instance melveen.com, labdiamondjewelry.net, daotaonhiepanh.net, munfred.com and ah.xyz.