mathlesson50.help - dns.ninja

mathlesson50.help

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:ae54🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:5857🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.88.87Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.174.84🇺🇸 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 hints104.21.88.87, 172.67.174.84
IPv6 hints2606:4700:3031::ac43:ae54, 2606:4700:3036::6815:5857
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=94, name=cloudflare-ech.com
SOAdecker.ns.cloudflare.comdns@cloudflare.com serial=2411801018

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=1786451672
⚠️ On DNS blocklist: spam-tlds

Same first word

mathlesson50.help

DNS History

11 records (6 active, 5 former)

NSdecker.ns.cloudflare.comelinore.ns.cloudflare.comA104.21.88.87172.67.174.842606:4700:3031::ac43:ae542606:4700:3036::6815:5857188.114.96.0188.114.97.02606:4700:3035::6815:58572a06:98c1:3120::2a06:98c1:3121::
●NSdecker.ns.cloudflare.com2026-06-11 → 2026-08-11 · 2 obs
● 2026-06-11 21:21:26
● 2026-08-11 13:06:20
●NSelinore.ns.cloudflare.com2026-06-11 → 2026-08-11 · 2 obs
● 2026-06-11 21:21:26
● 2026-08-11 13:06:20
●A104.21.88.872026-06-11 → 2026-08-11 · 3 obs
● 2026-06-11 21:21:26
○ 2026-07-24 05:15:50
● 2026-08-11 13:06:20
●A172.67.174.842026-06-11 → 2026-08-11 · 3 obs
● 2026-06-11 21:21:26
○ 2026-07-24 05:15:50
● 2026-08-11 13:06:20
○A188.114.96.02026-07-24 → 2026-07-24 · 3 obs
○ 2026-07-15 22:40:12
● 2026-07-24 05:15:50
○ 2026-08-11 13:06:20
○A188.114.97.02026-07-24 → 2026-07-24 · 3 obs
○ 2026-07-15 22:40:12
● 2026-07-24 05:15:50
○ 2026-08-11 13:06:20
●A2606:4700:3031::ac43:ae542026-06-11 → 2026-08-11 · 3 obs
● 2026-06-11 21:21:26
○ 2026-07-24 05:15:50
● 2026-08-11 13:06:20
○A2606:4700:3035::6815:58572026-06-11 → 2026-06-11 · 3 obs
● 2026-06-11 21:21:26
○ 2026-07-15 22:40:12
○ 2026-08-11 13:06:20
●A2606:4700:3036::6815:58572026-07-15 → 2026-08-11 · 4 obs
○ 2026-06-11 21:21:26
● 2026-07-15 22:40:12
○ 2026-07-24 05:15:50
● 2026-08-11 13:06:20
○A2a06:98c1:3120::2026-07-24 → 2026-07-24 · 3 obs
○ 2026-07-15 22:40:12
● 2026-07-24 05:15:50
○ 2026-08-11 13:06:20
○A2a06:98c1:3121::2026-07-24 → 2026-07-24 · 3 obs
○ 2026-07-15 22:40:12
● 2026-07-24 05:15:50
○ 2026-08-11 13:06:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
helpd.nic.help, b.nic.help, a.nic.help, c.nic.help8 records
mathlesson50.helpdecker.ns.cloudflare.com, elinore.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.153

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathlesson50.help (unsigned zone)

⏱️ Timing

Total: 1234ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.88.87, 172.67.174.84
AAAA22606:4700:3036::6815:5857, 2606:4700:3031::ac43:ae54
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 (d.nic.help, c.nic.help, b.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, tjdqdt.com, thefallofgods.com and two others — share IP numbers with mathlesson50.help.

Name Servers

mathlesson50.help is served by two delegated 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.

There is at least partial name server overlap between mathlesson50.help and other domains — mh999.net, mkastore.my.id, rrsite.com and two more among them.

The name servers terin.ns.cloudflare.com, hugh.ns.cloudflare.com and malavika.ns.cloudflare.com are often found in combination with these name servers.

Host names with 6 IP numbers:

decker.ns.cloudflare.com carries IP addresses 108.162.195.155, 162.159.44.155 and 172.64.35.155, with 3 other addresses beyond those.

elinore.ns.cloudflare.com carries IP addresses 108.162.192.153, 172.64.32.153 and 173.245.58.153, with 3 other addresses beyond those.