mathfest.org - dns.ninja

`mathfest.org`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:9bbb^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:30b6^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.48.182^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.155.187^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`roxy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a8e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`roxy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`roxy.ns.cloudflare.com`
		A	108.162.192.142^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	172.64.32.142^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
		A	173.245.58.142^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`roxy.ns.cloudflare.com`
NS	`tom.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b93^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tom.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c193^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`tom.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2193^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`tom.ns.cloudflare.com`
		A	108.162.193.147^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tom.ns.cloudflare.com`
		A	172.64.33.147^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tom.ns.cloudflare.com`
		A	173.245.59.147^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`tom.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.48.182, 172.67.155.187
		IPv6 hints	2606:4700:3031::ac43:9bbb, 2606:4700:3033::6815:30b6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=72, name=cloudflare-ech.com
SOA	`roxy.ns.cloudflare.com`dns@cloudflare.com serial=2406752911

`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=1782476974

Subdomains

www.mathfest.org

Same first word

mathfest.de

mathfest.com

mathfest.su

mathfest.org

DNS History

26 records (6 active, 20 former)

○NSns-1044.awsdns-02.org2016-06-18 → 2017-04-05 · 5 obs

○ 2016-02-26 03:30:04
● 2016-06-18 09:49:32
● 2017-04-05 09:52:30
○ 2026-02-15 17:39:36
○ 2026-06-26 12:40:36

○NSns-1825.awsdns-36.co.uk2016-06-18 → 2017-04-05 · 5 obs

○ 2016-02-26 03:30:04
● 2016-06-18 09:49:32
● 2017-04-05 09:52:30
○ 2026-02-15 17:39:36
○ 2026-06-26 12:40:36

○NSns-343.awsdns-42.com2016-06-18 → 2017-04-05 · 5 obs

○ 2016-02-26 03:30:04
● 2016-06-18 09:49:32
● 2017-04-05 09:52:30
○ 2026-02-15 17:39:36
○ 2026-06-26 12:40:36

○NSns-515.awsdns-00.net2016-06-18 → 2017-04-05 · 5 obs

○ 2016-02-26 03:30:04
● 2016-06-18 09:49:32
● 2017-04-05 09:52:30
○ 2026-02-15 17:39:36
○ 2026-06-26 12:40:36

○NSns41.domaincontrol.com2015-08-09 → 2016-02-26 · 4 obs

● 2015-08-09 03:28:44
● 2016-02-26 03:30:04
○ 2016-06-18 09:49:32
○ 2026-06-26 12:40:36

○NSns42.domaincontrol.com2015-08-09 → 2016-02-26 · 4 obs

● 2015-08-09 03:28:44
● 2016-02-26 03:30:04
○ 2016-06-18 09:49:32
○ 2026-06-26 12:40:36

●NSroxy.ns.cloudflare.com2026-02-15 → 2026-06-26 · 3 obs

○ 2017-04-05 09:52:30
● 2026-02-15 17:39:36
● 2026-06-26 12:40:36

●NStom.ns.cloudflare.com2026-02-15 → 2026-06-26 · 3 obs

○ 2017-04-05 09:52:30
● 2026-02-15 17:39:36
● 2026-06-26 12:40:36

○MXalt1.aspmx.l.google.com2017-04-05 → 2026-02-15 · 5 obs

○ 2016-06-18 09:49:32
● 2017-04-05 09:52:30
● 2026-02-15 17:39:36
○ 2026-03-18 07:39:34
○ 2026-06-26 12:40:36

○MXalt2.aspmx.l.google.com2017-04-05 → 2026-02-15 · 5 obs

○ 2016-06-18 09:49:32
● 2017-04-05 09:52:30
● 2026-02-15 17:39:36
○ 2026-03-18 07:39:34
○ 2026-06-26 12:40:36

○MXaspmx.l.google.com2017-04-05 → 2026-02-15 · 5 obs

○ 2016-06-18 09:49:32
● 2017-04-05 09:52:30
● 2026-02-15 17:39:36
○ 2026-03-18 07:39:34
○ 2026-06-26 12:40:36

○MXaspmx2.googlemail.com2017-04-05 → 2026-02-15 · 5 obs

○ 2016-06-18 09:49:32
● 2017-04-05 09:52:30
● 2026-02-15 17:39:36
○ 2026-03-18 07:39:34
○ 2026-06-26 12:40:36

○MXaspmx3.googlemail.com2017-04-05 → 2026-02-15 · 5 obs

○ 2016-06-18 09:49:32
● 2017-04-05 09:52:30
● 2026-02-15 17:39:36
○ 2026-03-18 07:39:34
○ 2026-06-26 12:40:36

○MXmailstore1.secureserver.net2015-08-09 → 2016-02-26 · 4 obs

● 2015-08-09 03:28:44
● 2016-02-26 03:30:04
○ 2016-06-18 09:49:32
○ 2026-06-26 12:40:36

○MXsmtp.secureserver.net2015-08-09 → 2016-02-26 · 4 obs

● 2015-08-09 03:28:44
● 2016-02-26 03:30:04
○ 2016-06-18 09:49:32
○ 2026-06-26 12:40:36

●A104.21.48.1822026-02-15 → 2026-06-26 · 3 obs

○ 2017-04-05 09:52:30
● 2026-02-15 17:39:36
● 2026-06-26 12:40:36

●A172.67.155.1872026-02-15 → 2026-06-26 · 3 obs

○ 2017-04-05 09:52:30
● 2026-02-15 17:39:36
● 2026-06-26 12:40:36

○A184.168.47.2252015-08-09 → 2016-02-26 · 4 obs

● 2015-08-09 03:28:44
● 2016-02-26 03:30:04
○ 2016-06-18 09:49:32
○ 2026-06-26 12:40:36

●A2606:4700:3031::ac43:9bbb2026-06-26 → 2026-06-26 · 2 obs

○ 2026-05-14 19:00:04
● 2026-06-26 12:40:36

●A2606:4700:3033::6815:30b62026-06-26 → 2026-06-26 · 2 obs

○ 2026-05-14 19:00:04
● 2026-06-26 12:40:36

○A2606:4700:3035::6815:30b62026-02-15 → 2026-05-14 · 4 obs

○ 2017-04-05 09:52:30
● 2026-02-15 17:39:36
● 2026-05-14 19:00:04
○ 2026-06-26 12:40:36

○A2606:4700:3037::ac43:9bbb2026-02-15 → 2026-05-14 · 4 obs

○ 2017-04-05 09:52:30
● 2026-02-15 17:39:36
● 2026-05-14 19:00:04
○ 2026-06-26 12:40:36

○A52.8.179.1092016-06-18 → 2016-06-18 · 4 obs

○ 2016-02-26 03:30:04
● 2016-06-18 09:49:32
○ 2017-04-05 09:52:30
○ 2026-06-26 12:40:36

○A52.8.81.502017-04-05 → 2017-04-05 · 4 obs

○ 2016-06-18 09:49:32
● 2017-04-05 09:52:30
○ 2026-02-15 17:39:36
○ 2026-06-26 12:40:36

○A54.183.51.52016-06-18 → 2016-06-18 · 4 obs

○ 2016-02-26 03:30:04
● 2016-06-18 09:49:32
○ 2017-04-05 09:52:30
○ 2026-06-26 12:40:36

○A54.67.59.952017-04-05 → 2017-04-05 · 4 obs

○ 2016-06-18 09:49:32
● 2017-04-05 09:52:30
○ 2026-02-15 17:39:36
○ 2026-06-26 12:40:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
mathfest.org	tom.ns.cloudflare.com, roxy.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.142

NS records: tom.ns.cloudflare.com, roxy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathfest.org (unsigned zone)

⏱️ Timing

Total: 338ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.48.182, 172.67.155.187`
AAAA	2	`2606:4700:3033::6815:30b6, 2606:4700:3031::ac43:9bbb`
NS	2	`roxy.ns.cloudflare.com, tom.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`roxy.ns.cloudflare.com dns.cloudflare.co`

Analysis

Hierarchy

The domain www.mathfest.org falls under the parent mathfest.org.

IP Addresses

mathfest.org points to the four IP addresses 104.21.48.182, 172.67.155.187, 2606:4700:3031::ac43:9bbb and 2606:4700:3033::6815:30b6.

ecoshine.pl, vietjet.edu.vn, tuneup.ai and two other host names share IP numbers with mathfest.org.

Name Servers

mathfest.org has two authoritative name servers — roxy.ns.cloudflare.com and tom.ns.cloudflare.com.

mathfest.org uses the same name servers as several other domains — among them rare.us, vibedancewi.com, webelements.com and two more.

At least some of mathfest.org's name servers are shared with other domains, for example wowbox.fun, top-security.nl, find-a-part.com and two more.

These name servers tend to be deployed in combination with the name servers kia.ns.cloudflare.com and edna.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

roxy.ns.cloudflare.com points to 108.162.192.142, 172.64.32.142, 173.245.58.142 and 3 other IP addresses.

tom.ns.cloudflare.com points to 108.162.193.147, 172.64.33.147, 173.245.59.147 and 3 other IP addresses.