studyoffer.study - robtex.com
studyoffer.study
| DNSSEC | β οΈ Not signed | ||||||
| A | 2606:4700:3031::ac43:d5a5πΊπΈ Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:17d1πΊπΈ Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 104.21.23.209Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| A | 172.67.213.165πΊπΈ Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US β In HTTPS hints | ||||||
| NS | elma.ns.cloudflare.com β | ||||||
| A | 2606:4700:50::adf5:3a9aπΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c09aπ¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:209aπΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 108.162.192.154πΊπΈ Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 172.64.32.154πΊπΈ Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| A | 173.245.58.154πΊπΈ Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elma.ns.cloudflare.com | ||||||
| NS | wesley.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bf6πΊπΈ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | wesley.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1f6π¨π· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | wesley.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21f6πΊπΈ Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | wesley.ns.cloudflare.com | ||||||
| A | 108.162.193.246πΊπΈ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | wesley.ns.cloudflare.com | ||||||
| A | 172.64.33.246πΊπΈ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | wesley.ns.cloudflare.com | ||||||
| A | 173.245.59.246πΊπΈ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | wesley.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 β hints match | ||||||
| IPv4 hints | 104.21.23.209, 172.67.213.165 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:d5a5, 2606:4700:3033::6815:17d1 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=10, name=cloudflare-ech.com | ||||||
| SOA | elma.ns.cloudflare.comdns@cloudflare.com serial=2413526268 | ||||||
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=1789268989 | ||||||
Same first word
studyoffer.study |
Similar names
Previous names
Next names
DNS History
10 records (6 active, 4 former)
βNSelma.ns.cloudflare.com2026-09-11 β 2026-09-13 Β· 2 obs
β 2026-09-13 03:15:22
βNSwesley.ns.cloudflare.com2026-09-11 β 2026-09-13 Β· 2 obs
β 2026-09-13 03:15:22
βA104.21.23.2092026-09-11 β 2026-09-13 Β· 3 obs
β 2026-09-11 12:58:10
β 2026-09-13 03:15:22
βA172.67.213.1652026-09-11 β 2026-09-13 Β· 3 obs
β 2026-09-11 12:58:10
β 2026-09-13 03:15:22
βA188.114.96.02026-09-11 β 2026-09-11 Β· 3 obs
β 2026-09-11 12:58:10
β 2026-09-13 03:15:22
βA188.114.97.02026-09-11 β 2026-09-11 Β· 3 obs
β 2026-09-11 12:58:10
β 2026-09-13 03:15:22
βA2606:4700:3031::ac43:d5a52026-09-11 β 2026-09-13 Β· 3 obs
β 2026-09-11 12:58:10
β 2026-09-13 03:15:22
βA2606:4700:3033::6815:17d12026-09-11 β 2026-09-13 Β· 3 obs
β 2026-09-11 12:58:10
β 2026-09-13 03:15:22
βA2a06:98c1:3120::2026-09-11 β 2026-09-11 Β· 3 obs
β 2026-09-11 12:58:10
β 2026-09-13 03:15:22
βA2a06:98c1:3121::2026-09-11 β 2026-09-11 Β· 3 obs
β 2026-09-11 12:58:10
β 2026-09-13 03:15:22
π DNS Trace
π Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| study | a.nic.study, b.nic.study, c.nic.study, x.nic.study... | 12 records |
| studyoffer.study | elma.ns.cloudflare.com, wesley.ns.cloudflare.com | - |
β Authoritative Response
Server:108.162.192.154
NS records: elma.ns.cloudflare.com, wesley.ns.cloudflare.com
π DNSSEC Status
β οΈ Insecure (no DNSSEC)
No DS record for studyoffer.study (unsigned zone)
β±οΈ Timing
Total: 731ms | Queries: -
π Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.213.165, 104.21.23.209 |
| AAAA | 2 | 2606:4700:3031::ac43:d5a5, 2606:4700:3033::6815:17d1 |
| NS | 2 | elma.ns.cloudflare.com, wesley.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | elma.ns.cloudflare.com dns.cloudflare.co |
π Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.study, a.nic.study, b.nic.study...)
Analysis
IP Addresses
studyoffer.study points to the four IP addresses 104.21.23.209, 172.67.213.165, 2606:4700:3031::ac43:d5a5 and 2606:4700:3033::6815:17d1.
Additional host names β cedarvalleyalignment.com, echelonappareltradellc.com, reformaemdomicilio.com.br and two others β share IP numbers with studyoffer.study.
Name Servers
Two name servers handle the delegation for studyoffer.study: elma.ns.cloudflare.com and wesley.ns.cloudflare.com.
studyoffer.study shares its name server setup with other domains, including juangalletas105322.workers.dev, smartinvest.courses, meista.id and two others.
There is at least partial name server overlap between studyoffer.study and other domains β vinayan.workers.dev, qza211314-062.workers.dev, 6qv46su4ufg.workers.dev and two more among them.
The name servers west.ns.cloudflare.com, ollie.ns.cloudflare.com and leland.ns.cloudflare.com are often found in combination with these name servers.
Host names with 6 IP numbers:
elma.ns.cloudflare.com resolves to 108.162.192.154, 172.64.32.154 and 173.245.58.154 among others, with 3 other IP addresses in total.
wesley.ns.cloudflare.com resolves to 108.162.193.246, 172.64.33.246 and 173.245.59.246 among others, with 3 other IP addresses in total.