`mathlesson50.help`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:ae54^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:5857^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.88.87^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.174.84^{🇺🇸 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	104.21.88.87, 172.67.174.84
		IPv6 hints	2606:4700:3031::ac43:ae54, 2606:4700:3036::6815:5857
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=130, name=cloudflare-ech.com
SOA	`decker.ns.cloudflare.com`dns@cloudflare.com serial=2406800598

`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=1784152066

Same first word

mathlesson50.help

DNS History

7 records (6 active, 1 former)

●NSdecker.ns.cloudflare.com2026-06-11 → 2026-07-15 · 2 obs

● 2026-06-11 21:21:26
● 2026-07-15 22:40:14

●NSelinore.ns.cloudflare.com2026-06-11 → 2026-07-15 · 2 obs

● 2026-06-11 21:21:26
● 2026-07-15 22:40:14

●A104.21.88.872026-06-11 → 2026-07-15 · 2 obs

● 2026-06-11 21:21:26
● 2026-07-15 22:40:14

●A172.67.174.842026-06-11 → 2026-07-15 · 2 obs

● 2026-06-11 21:21:26
● 2026-07-15 22:40:14

●A2606:4700:3031::ac43:ae542026-06-11 → 2026-07-15 · 2 obs

● 2026-06-11 21:21:26
● 2026-07-15 22:40:14

○A2606:4700:3035::6815:58572026-06-11 → 2026-06-11 · 3 obs

● 2026-06-11 21:21:26
○ 2026-07-15 22:40:12
○ 2026-07-15 22:40:14

●A2606:4700:3036::6815:58572026-07-15 → 2026-07-15 · 3 obs

○ 2026-06-11 21:21:26
● 2026-07-15 22:40:12
● 2026-07-15 22:40:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
help	a.nic.help, b.nic.help, c.nic.help, d.nic.help	8 records
mathlesson50.help	elinore.ns.cloudflare.com, decker.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.195.155

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathlesson50.help (unsigned zone)

⏱️ Timing

Total: 433ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.174.84, 104.21.88.87`
AAAA	2	`2606:4700:3031::ac43:ae54, 2606:4700:3036::6815:5857`
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

mathlesson50.help directs to four IP numbers, which are 104.21.88.87, 172.67.174.84, 2606:4700:3031::ac43:ae54 and 2606:4700:3036::6815:5857.

Additional host names — allegrolokalnie.73010.click, www.monngondacsan.com, gardenwallinn.com and two others — share IP numbers with mathlesson50.help.

Name Servers

mathlesson50.help has two authoritative name servers — decker.ns.cloudflare.com and elinore.ns.cloudflare.com.

mathlesson50.help shares its name server setup with other domains, including mathlesson90.help, mathlesson80.help, mathlesson100.help and two others.

The name servers of mathlesson50.help overlap at least partially with those of other domains — among them mh999.net, mkastore.my.id, rrsite.com and two more.

These name servers commonly appear alongside the name servers terin.ns.cloudflare.com and hugh.ns.cloudflare.com.

Host names with 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.

mathlesson50.help - robtex.com