mathlesson70.help - robtex.com

mathlesson70.help

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:31c6🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:a6cd🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.49.198Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.166.205🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdecker.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c9b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdecker.ns.cloudflare.com
A2803:f800:50::6ca2:c39b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdecker.ns.cloudflare.com
A2a06:98c1:50::ac40:239b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdecker.ns.cloudflare.com
A108.162.195.155🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdecker.ns.cloudflare.com
A162.159.44.155Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdecker.ns.cloudflare.com
A172.64.35.155🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdecker.ns.cloudflare.com
NSelinore.ns.cloudflare.com
A2606:4700:50::adf5:3a99🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelinore.ns.cloudflare.com
A2803:f800:50::6ca2:c099🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRelinore.ns.cloudflare.com
A2a06:98c1:50::ac40:2099🇺🇸 Cloudflare2a06:98c1:50::/45
PTRelinore.ns.cloudflare.com
A108.162.192.153🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelinore.ns.cloudflare.com
A172.64.32.153🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelinore.ns.cloudflare.com
A173.245.58.153🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelinore.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.49.198, 172.67.166.205
IPv6 hints2606:4700:3032::6815:31c6, 2606:4700:3032::ac43:a6cd
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=180, name=cloudflare-ech.com
SOAdecker.ns.cloudflare.comdns@cloudflare.com serial=2406800628

help

DNSSEC🔒 Signed (DS record present)
NSns0.centralnic.net ⭐
NSa.nic.help
NSb.nic.help
NSc.nic.help
NSd.nic.help
SOAns0.centralnic.nethostmaster@centralnic.net serial=1784162965

Same first word

mathlesson70.help

DNS History

11 records (6 active, 5 former)

NSdecker.ns.cloudflare.comelinore.ns.cloudflare.comA104.21.49.198172.67.166.2052606:4700:3032::6815:31c62606:4700:3032::ac43:a6cd188.114.96.0188.114.97.02606:4700:3030::6815:31c62a06:98c1:3120::2a06:98c1:3121::
●NSdecker.ns.cloudflare.com2026-06-11 → 2026-07-16 · 2 obs
● 2026-06-11 21:27:18
● 2026-07-16 01:07:12
●NSelinore.ns.cloudflare.com2026-06-11 → 2026-07-16 · 2 obs
● 2026-06-11 21:27:18
● 2026-07-16 01:07:12
●A104.21.49.1982026-06-11 → 2026-07-16 · 5 obs
● 2026-06-11 21:27:18
● 2026-06-15 21:27:16
○ 2026-06-19 02:07:46
● 2026-07-16 01:07:10
● 2026-07-16 01:07:12
●A172.67.166.2052026-06-11 → 2026-07-16 · 5 obs
● 2026-06-11 21:27:18
● 2026-06-15 21:27:16
○ 2026-06-19 02:07:46
● 2026-07-16 01:07:10
● 2026-07-16 01:07:12
○A188.114.96.02026-06-19 → 2026-06-19 · 4 obs
○ 2026-06-15 21:27:16
● 2026-06-19 02:07:46
○ 2026-07-16 01:07:10
○ 2026-07-16 01:07:12
○A188.114.97.02026-06-19 → 2026-06-19 · 4 obs
○ 2026-06-15 21:27:16
● 2026-06-19 02:07:46
○ 2026-07-16 01:07:10
○ 2026-07-16 01:07:12
○A2606:4700:3030::6815:31c62026-06-11 → 2026-06-15 · 4 obs
● 2026-06-11 21:27:18
● 2026-06-15 21:27:16
○ 2026-06-19 02:07:46
○ 2026-07-16 01:07:12
●A2606:4700:3032::6815:31c62026-07-16 → 2026-07-16 · 3 obs
○ 2026-06-19 02:07:46
● 2026-07-16 01:07:10
● 2026-07-16 01:07:12
●A2606:4700:3032::ac43:a6cd2026-06-11 → 2026-07-16 · 5 obs
● 2026-06-11 21:27:18
● 2026-06-15 21:27:16
○ 2026-06-19 02:07:46
● 2026-07-16 01:07:10
● 2026-07-16 01:07:12
○A2a06:98c1:3120::2026-06-19 → 2026-06-19 · 4 obs
○ 2026-06-15 21:27:16
● 2026-06-19 02:07:46
○ 2026-07-16 01:07:10
○ 2026-07-16 01:07:12
○A2a06:98c1:3121::2026-06-19 → 2026-06-19 · 4 obs
○ 2026-06-15 21:27:16
● 2026-06-19 02:07:46
○ 2026-07-16 01:07:10
○ 2026-07-16 01:07:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
helpa.nic.help, b.nic.help, c.nic.help, d.nic.help8 records
mathlesson70.helpdecker.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 mathlesson70.help (unsigned zone)

⏱️ Timing

Total: 301ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.166.205, 104.21.49.198
AAAA22606:4700:3032::6815:31c6, 2606:4700:3032::ac43:a6cd
NS2decker.ns.cloudflare.com, elinore.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1decker.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 8

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

Analysis

IP Addresses

mathlesson70.help points to the four IP addresses 104.21.49.198, 172.67.166.205, 2606:4700:3032::6815:31c6 and 2606:4700:3032::ac43:a6cd.

Among the host names that share IP numbers with mathlesson70.help are onlinebroker.net, rlsuohvbqvbxa.space, redstaking.com and two others.

Name Servers

mathlesson70.help uses two name servers for its delegation: decker.ns.cloudflare.com and elinore.ns.cloudflare.com.

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

There is at least partial name server overlap between mathlesson70.help and other domains — scala-aparts.de, danangland.org, blumen-sieg.de and two more among them.

These name servers frequently co-occur with the name servers malavika.ns.cloudflare.com and terin.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

Hostname decker.ns.cloudflare.com directs to 108.162.195.155, 162.159.44.155 and 172.64.35.155 along with 3 other IP addresses.

Hostname elinore.ns.cloudflare.com directs to 108.162.192.153, 172.64.32.153 and 173.245.58.153 along with 3 other IP addresses.