smart.study - dns.ninja
smart.study
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3030::6815:383dπΊπΈ Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:b2c7πΊπΈ Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.56.61Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.178.199πΊπΈ Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| NS | david.ns.cloudflare.com β | ||||||
| A | 2606:4700:58::adf5:3b98πΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | david.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c198π¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | david.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2198πΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | david.ns.cloudflare.com | ||||||
| A | 108.162.193.152πΊπΈ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | david.ns.cloudflare.com | ||||||
| A | 172.64.33.152πΊπΈ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | david.ns.cloudflare.com | ||||||
| A | 173.245.59.152πΊπΈ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | david.ns.cloudflare.com | ||||||
| NS | linda.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3afaπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0faπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20faπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 108.162.192.250πΊπΈ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 172.64.32.250πΊπΈ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| A | 173.245.58.250πΊπΈ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | linda.ns.cloudflare.com | ||||||
| HTTPS | HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.56.61, 172.67.178.199 | ||||||
| IPv6 hints | 2606:4700:3030::6815:383d, 2606:4700:3036::ac43:b2c7 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=89, name=cloudflare-ech.com | ||||||
| SOA | david.ns.cloudflare.comdns@cloudflare.com serial=2406787007 | ||||||
study
| DNSSEC | π Signed (DS record present) | ||||||
| NS | a.nic.study β | ||||||
| NS | b.nic.study | ||||||
| NS | c.nic.study | ||||||
| NS | x.nic.study | ||||||
| NS | y.nic.study | ||||||
| NS | z.nic.study | ||||||
| SOA | a.nic.studyadmin@tldns.godaddy serial=1782148522 | ||||||
Subdomains
www.smart.study |
Same first word
Similar names
DNS History
15 records (6 active, 9 former)
βNSdavid.ns.cloudflare.com2026-02-24 β 2026-06-22 Β· 3 obs
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βNSlinda.ns.cloudflare.com2026-02-24 β 2026-06-22 Β· 3 obs
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βNSns51.domaincontrol.com2017-05-07 β 2017-11-27 Β· 4 obs
β 2017-11-27 15:11:12
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βNSns52.domaincontrol.com2017-05-07 β 2017-11-27 Β· 4 obs
β 2017-11-27 15:11:12
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βMXalt1.aspmx.l.google.com2017-05-07 β 2017-11-27 Β· 4 obs
β 2017-11-27 15:11:12
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βMXalt2.aspmx.l.google.com2017-05-07 β 2017-11-27 Β· 4 obs
β 2017-11-27 15:11:12
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βMXaspmx.l.google.com2017-05-07 β 2017-11-27 Β· 4 obs
β 2017-11-27 15:11:12
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βMXaspmx2.googlemail.com2017-05-07 β 2017-11-27 Β· 4 obs
β 2017-11-27 15:11:12
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βMXaspmx3.googlemail.com2017-05-07 β 2017-11-27 Β· 4 obs
β 2017-11-27 15:11:12
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βA104.21.56.612026-02-24 β 2026-06-22 Β· 3 obs
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βA169.54.44.1382017-05-07 β 2017-05-07 Β· 3 obs
β 2017-11-27 15:11:12
β 2026-06-22 17:32:32
βA172.67.178.1992026-02-24 β 2026-06-22 Β· 3 obs
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βA2606:4700:3030::6815:383d2026-02-24 β 2026-06-22 Β· 3 obs
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βA2606:4700:3036::ac43:b2c72026-02-24 β 2026-06-22 Β· 3 obs
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
βA52.3.196.812017-11-27 β 2017-11-27 Β· 4 obs
β 2017-11-27 15:11:12
β 2026-02-24 06:39:28
β 2026-06-22 17:32:32
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | z.nic.study, x.nic.study, b.nic.study, y.nic.study... | 12 records |
| smart.study | david.ns.cloudflare.com, linda.ns.cloudflare.com | - |
β Authoritative Response
Server:108.162.192.250
NS records: david.ns.cloudflare.com, linda.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for smart.study (unsigned zone)
β±οΈ Timing
Total: 804ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.56.61, 172.67.178.199 |
| AAAA | 2 | 2606:4700:3030::6815:383d, 2606:4700:3036::ac43:b2c7 |
| NS | 2 | david.ns.cloudflare.com, linda.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h2"] |
| SOA | 1 | david.ns.cloudflare.com dns.cloudflare.c |
π 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.