`mathlesson80.help`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:4003^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:adb6^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.64.3^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.173.182^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`decker.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c9b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`decker.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c39b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`decker.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:239b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`decker.ns.cloudflare.com`
		A	108.162.195.155^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`decker.ns.cloudflare.com`
		A	162.159.44.155^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`decker.ns.cloudflare.com`
		A	172.64.35.155^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`decker.ns.cloudflare.com`
NS	`elinore.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a99^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c099^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elinore.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2099^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elinore.ns.cloudflare.com`
		A	108.162.192.153^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	172.64.32.153^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
		A	173.245.58.153^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elinore.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.64.3, 172.67.173.182
		IPv6 hints	2606:4700:3030::6815:4003, 2606:4700:3034::ac43:adb6
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=247, name=cloudflare-ech.com
SOA	`decker.ns.cloudflare.com`dns@cloudflare.com serial=2406800642

`help`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.nic.help`
	NS	`b.nic.help`
	NS	`c.nic.help`
	NS	`d.nic.help`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1784159608

Same first word

mathlesson80.help

DNS History

8 records (6 active, 2 former)

●NSdecker.ns.cloudflare.com2026-06-11 → 2026-07-16 · 2 obs

● 2026-06-11 21:32:32
● 2026-07-16 00:05:40

●NSelinore.ns.cloudflare.com2026-06-11 → 2026-07-16 · 2 obs

● 2026-06-11 21:32:32
● 2026-07-16 00:05:40

●A104.21.64.32026-06-11 → 2026-07-16 · 2 obs

● 2026-06-11 21:32:32
● 2026-07-16 00:05:40

●A172.67.173.1822026-06-11 → 2026-07-16 · 2 obs

● 2026-06-11 21:32:32
● 2026-07-16 00:05:40

●A2606:4700:3030::6815:40032026-07-12 → 2026-07-16 · 3 obs

○ 2026-06-11 21:32:32
● 2026-07-12 21:41:44
● 2026-07-16 00:05:40

○A2606:4700:3032::6815:40032026-06-11 → 2026-06-11 · 3 obs

● 2026-06-11 21:32:32
○ 2026-07-12 21:41:44
○ 2026-07-16 00:05:40

○A2606:4700:3033::ac43:adb62026-06-11 → 2026-06-11 · 3 obs

● 2026-06-11 21:32:32
○ 2026-07-12 21:41:44
○ 2026-07-16 00:05:40

●A2606:4700:3034::ac43:adb62026-07-12 → 2026-07-16 · 3 obs

○ 2026-06-11 21:32:32
● 2026-07-12 21:41:44
● 2026-07-16 00:05:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
help	a.nic.help, b.nic.help, c.nic.help, d.nic.help	8 records
mathlesson80.help	decker.ns.cloudflare.com, elinore.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.155

NS records: decker.ns.cloudflare.com, elinore.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathlesson80.help (unsigned zone)

⏱️ Timing

Total: 211ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.173.182, 104.21.64.3`
AAAA	2	`2606:4700:3030::6815:4003, 2606:4700:3034::ac43:adb6`
NS	2	`decker.ns.cloudflare.com, elinore.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`decker.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a.nic.help, b.nic.help, c.nic.help...)

Analysis

IP Addresses

mathlesson80.help points to the four IP addresses 104.21.64.3, 172.67.173.182, 2606:4700:3030::6815:4003 and 2606:4700:3034::ac43:adb6.

Among the host names that share IP numbers with mathlesson80.help are progscrape.com, iedashboard.com.br, fisioterapia.roma.it and two others.

Name Servers

mathlesson80.help has two authoritative name servers — decker.ns.cloudflare.com and elinore.ns.cloudflare.com.

mathlesson80.help has the same name server delegation as a number of other domains, such as mathlesson70.help, mathlesson20.help, mathlesson50.help and two more.

At least some of mathlesson80.help's name servers are shared with other domains, for example ligaft.com, szltcpower.com, edu-birdie.biz and two more.

It is common for these name servers to be used in conjunction with the name servers malavika.ns.cloudflare.com, julio.ns.cloudflare.com and terin.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

decker.ns.cloudflare.com points to 108.162.195.155, 162.159.44.155, 172.64.35.155 and 3 other IP addresses.

elinore.ns.cloudflare.com points to 108.162.192.153, 172.64.32.153, 173.245.58.153 and 3 other IP addresses.

mathlesson80.help - robtex.com