smart.study - dns.ninja

smart.study

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:383dπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A2606:4700:3036::ac43:b2c7πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A104.21.56.61Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
A172.67.178.199πŸ‡ΊπŸ‡Έ Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US βœ“ In HTTPS hints
NSdavid.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b98πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavid.ns.cloudflare.com
A2803:f800:50::6ca2:c198πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdavid.ns.cloudflare.com
A2a06:98c1:50::ac40:2198πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRdavid.ns.cloudflare.com
A108.162.193.152πŸ‡ΊπŸ‡Έ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavid.ns.cloudflare.com
A172.64.33.152πŸ‡ΊπŸ‡Έ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavid.ns.cloudflare.com
A173.245.59.152πŸ‡ΊπŸ‡Έ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdavid.ns.cloudflare.com
NSlinda.ns.cloudflare.com
A2606:4700:50::adf5:3afaπŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlinda.ns.cloudflare.com
A2803:f800:50::6ca2:c0faπŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRlinda.ns.cloudflare.com
A2a06:98c1:50::ac40:20faπŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRlinda.ns.cloudflare.com
A108.162.192.250πŸ‡ΊπŸ‡Έ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlinda.ns.cloudflare.com
A172.64.32.250πŸ‡ΊπŸ‡Έ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlinda.ns.cloudflare.com
A173.245.58.250πŸ‡ΊπŸ‡Έ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRlinda.ns.cloudflare.com
HTTPSHTTP/2 βœ“ hints match
IPv4 hints104.21.56.61, 172.67.178.199
IPv6 hints2606:4700:3030::6815:383d, 2606:4700:3036::ac43:b2c7
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=89, name=cloudflare-ech.com
SOAdavid.ns.cloudflare.comdns@cloudflare.com serial=2406787007

study

DNSSECπŸ”’ Signed (DS record present)
NSa.nic.study ⭐
NSb.nic.study
NSc.nic.study
NSx.nic.study
NSy.nic.study
NSz.nic.study
SOAa.nic.studyadmin@tldns.godaddy serial=1782148522

Subdomains

Same first word

Similar names

DNS History

15 records (6 active, 9 former)

201820192020202120222023202420252026NSdavid.ns.cloudflare.comlinda.ns.cloudflare.comns51.domaincontrol.comns52.domaincontrol.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comA104.21.56.61172.67.178.1992606:4700:3030::6815:383d2606:4700:3036::ac43:b2c7169.54.44.13852.3.196.81
●NSdavid.ns.cloudflare.com2026-02-24 β†’ 2026-06-22 Β· 3 obs
β—‹ 2017-11-27 15:11:12
● 2026-02-24 06:39:28
● 2026-06-22 17:32:32
●NSlinda.ns.cloudflare.com2026-02-24 β†’ 2026-06-22 Β· 3 obs
β—‹ 2017-11-27 15:11:12
● 2026-02-24 06:39:28
● 2026-06-22 17:32:32
β—‹NSns51.domaincontrol.com2017-05-07 β†’ 2017-11-27 Β· 4 obs
● 2017-05-07 15:42:48
● 2017-11-27 15:11:12
β—‹ 2026-02-24 06:39:28
β—‹ 2026-06-22 17:32:32
β—‹NSns52.domaincontrol.com2017-05-07 β†’ 2017-11-27 Β· 4 obs
● 2017-05-07 15:42:48
● 2017-11-27 15:11:12
β—‹ 2026-02-24 06:39:28
β—‹ 2026-06-22 17:32:32
β—‹MXalt1.aspmx.l.google.com2017-05-07 β†’ 2017-11-27 Β· 4 obs
● 2017-05-07 15:42:48
● 2017-11-27 15:11:12
β—‹ 2026-02-24 06:39:28
β—‹ 2026-06-22 17:32:32
β—‹MXalt2.aspmx.l.google.com2017-05-07 β†’ 2017-11-27 Β· 4 obs
● 2017-05-07 15:42:48
● 2017-11-27 15:11:12
β—‹ 2026-02-24 06:39:28
β—‹ 2026-06-22 17:32:32
β—‹MXaspmx.l.google.com2017-05-07 β†’ 2017-11-27 Β· 4 obs
● 2017-05-07 15:42:48
● 2017-11-27 15:11:12
β—‹ 2026-02-24 06:39:28
β—‹ 2026-06-22 17:32:32
β—‹MXaspmx2.googlemail.com2017-05-07 β†’ 2017-11-27 Β· 4 obs
● 2017-05-07 15:42:48
● 2017-11-27 15:11:12
β—‹ 2026-02-24 06:39:28
β—‹ 2026-06-22 17:32:32
β—‹MXaspmx3.googlemail.com2017-05-07 β†’ 2017-11-27 Β· 4 obs
● 2017-05-07 15:42:48
● 2017-11-27 15:11:12
β—‹ 2026-02-24 06:39:28
β—‹ 2026-06-22 17:32:32
●A104.21.56.612026-02-24 β†’ 2026-06-22 Β· 3 obs
β—‹ 2017-11-27 15:11:12
● 2026-02-24 06:39:28
● 2026-06-22 17:32:32
β—‹A169.54.44.1382017-05-07 β†’ 2017-05-07 Β· 3 obs
● 2017-05-07 15:42:48
β—‹ 2017-11-27 15:11:12
β—‹ 2026-06-22 17:32:32
●A172.67.178.1992026-02-24 β†’ 2026-06-22 Β· 3 obs
β—‹ 2017-11-27 15:11:12
● 2026-02-24 06:39:28
● 2026-06-22 17:32:32
●A2606:4700:3030::6815:383d2026-02-24 β†’ 2026-06-22 Β· 3 obs
β—‹ 2017-11-27 15:11:12
● 2026-02-24 06:39:28
● 2026-06-22 17:32:32
●A2606:4700:3036::ac43:b2c72026-02-24 β†’ 2026-06-22 Β· 3 obs
β—‹ 2017-11-27 15:11:12
● 2026-02-24 06:39:28
● 2026-06-22 17:32:32
β—‹A52.3.196.812017-11-27 β†’ 2017-11-27 Β· 4 obs
β—‹ 2017-05-07 15:42:48
● 2017-11-27 15:11:12
β—‹ 2026-02-24 06:39:28
β—‹ 2026-06-22 17:32:32

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
studyz.nic.study, x.nic.study, b.nic.study, y.nic.study...12 records
smart.studydavid.ns.cloudflare.com, linda.ns.cloudflare.com-

βœ… Authoritative Response

Server:108.162.192.250

NS records: david.ns.cloudflare.com, linda.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smart.study (unsigned zone)

⏱️ Timing

Total: 804ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A2104.21.56.61, 172.67.178.199
AAAA22606:4700:3030::6815:383d, 2606:4700:3036::ac43:b2c7
NS2david.ns.cloudflare.com, linda.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h2"]
SOA1david.ns.cloudflare.com dns.cloudflare.c

πŸ“Œ Glue Records Collected

Total: 12

In-bailiwick: 12 (z.nic.study, z.nic.study, x.nic.study...)

Analysis

Hierarchy

smart.study is a parent domain of www.smart.study.

IP Addresses

smart.study resolves to four IP addresses: 104.21.56.61, 172.67.178.199, 2606:4700:3030::6815:383d and 2606:4700:3036::ac43:b2c7.

framgangsakademin.se, 1tct.net, www.cliniquedusoufflelasolane.fr and two other host names share IP numbers with smart.study.

Name Servers

The NS records for smart.study delegate to david.ns.cloudflare.com and linda.ns.cloudflare.com.

smart.study uses the same name servers as several other domains β€” among them justsome(0x706f726e).com, termeleonardo.it, languagetrainers.co.uk and two more.

smart.study shares at least some of its name servers with other domains, including quantiam.com, zonetacts.com, iihs.net and two others.

It is common to find these name servers alongside the name servers trevor.ns.cloudflare.com, joyce.ns.cloudflare.com, jarred.ns.cloudflare.com and two others.

Hostnames that resolve to 6 IP addresses:

david.ns.cloudflare.com maps to 108.162.193.152, 172.64.33.152, 173.245.59.152 and 3 additional IP addresses.

linda.ns.cloudflare.com maps to 108.162.192.250, 172.64.32.250, 173.245.58.250 and 3 additional IP addresses.