stwcourses.com - robtex.com
stwcourses.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3035::6815:5a2f🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:c336🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.90.47Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.195.54🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | martin.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c57🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | martin.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c357🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | martin.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2357🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | martin.ns.cloudflare.com | ||||||
| A | 108.162.195.87🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | martin.ns.cloudflare.com | ||||||
| A | 162.159.44.87Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | martin.ns.cloudflare.com | ||||||
| A | 172.64.35.87🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | martin.ns.cloudflare.com | ||||||
| NS | sydney.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2666🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sydney.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c266🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sydney.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2266🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sydney.ns.cloudflare.com | ||||||
| A | 108.162.194.102🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sydney.ns.cloudflare.com | ||||||
| A | 162.159.38.102Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sydney.ns.cloudflare.com | ||||||
| A | 172.64.34.102🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sydney.ns.cloudflare.com | ||||||
| TXT | google-site-verification=RONPm03KWwjd_lXIS7_2alQzzH6aLDgeJnBN3E8BK_0 | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.90.47, 172.67.195.54 | ||||||
| IPv6 hints | 2606:4700:3035::6815:5a2f, 2606:4700:3035::ac43:c336 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=58, name=cloudflare-ech.com | ||||||
| SOA | martin.ns.cloudflare.comdns@cloudflare.com serial=2411513401 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786282779 | ||||||
Same first word
stwcourses.com |
Similar names
DNS History
7 records (6 active, 1 former)
●NSmartin.ns.cloudflare.com2026-05-15 → 2026-08-09 · 2 obs
● 2026-08-09 13:58:08
●NSsydney.ns.cloudflare.com2026-05-15 → 2026-08-09 · 2 obs
● 2026-08-09 13:58:08
●A104.21.90.472026-05-15 → 2026-08-09 · 2 obs
● 2026-08-09 13:58:08
●A172.67.195.542026-05-15 → 2026-08-09 · 2 obs
● 2026-08-09 13:58:08
○A2606:4700:3034::ac43:c3362026-05-15 → 2026-06-05 · 4 obs
● 2026-06-05 12:15:10
○ 2026-07-08 16:50:58
○ 2026-08-09 13:58:08
●A2606:4700:3035::6815:5a2f2026-05-15 → 2026-08-09 · 2 obs
● 2026-08-09 13:58:08
●A2606:4700:3035::ac43:c3362026-07-08 → 2026-08-09 · 3 obs
● 2026-07-08 16:50:58
● 2026-08-09 13:58:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| stwcourses.com | sydney.ns.cloudflare.com, martin.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.87
NS records: sydney.ns.cloudflare.com, martin.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for stwcourses.com (unsigned zone)
⏱️ Timing
Total: 274ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.195.54, 104.21.90.47 |
| AAAA | 2 | 2606:4700:3035::6815:5a2f, 2606:4700:3035::ac43:c336 |
| NS | 2 | martin.ns.cloudflare.com, sydney.ns.cloudflare.com |
| TXT | 1 | google-site-verification=RONPm03KWwjd_lX |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | martin.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (sydney.ns.cloudflare.com, sydney.ns.cloudflare.com, sydney.ns.cloudflare.com...)
Analysis
IP Addresses
stwcourses.com resolves to four IP addresses: 104.21.90.47, 172.67.195.54, 2606:4700:3035::6815:5a2f and 2606:4700:3035::ac43:c336.
mrweb.co.in, energy-s.co.uk, goodyear-epe.com plus two other host names have IP numbers in common with stwcourses.com.
Name Servers
DNS delegation for stwcourses.com points to two name servers: martin.ns.cloudflare.com and sydney.ns.cloudflare.com.
The name server configuration of stwcourses.com is shared with other domains, for instance avocado.green, nomadorroles.com, puzan.io and two others.
stwcourses.com partially shares its NS delegation with several other domains, including batterybuyer.com, intualis.biz.id, china-nemow.com and two others.
These name servers regularly co-occur with the name servers kipp.ns.cloudflare.com, cesar.ns.cloudflare.com and alice.ns.cloudflare.com.
Hosts with 6 IP addresses each:
martin.ns.cloudflare.com has IP addresses 108.162.195.87, 162.159.44.87 and 172.64.35.87, plus 3 other.
sydney.ns.cloudflare.com has IP addresses 108.162.194.102, 162.159.38.102 and 172.64.34.102, plus 3 other.