sqlcoursehub.org - robtex.com
sqlcoursehub.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:1430🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:bf59🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.20.48Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.191.89🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | kinsley.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:264bCloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 2803:f800:50::6ca2:c24bCloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| A | 2a06:98c1:50::ac40:224bCloudflare2a06:98c1:50::/45 | ||||||
| A | 108.162.194.75Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 162.159.38.75Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.34.75Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | melnicoff.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2cae🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melnicoff.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3ae🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | melnicoff.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23ae🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | melnicoff.ns.cloudflare.com | ||||||
| A | 108.162.195.174🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melnicoff.ns.cloudflare.com | ||||||
| A | 162.159.44.174Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melnicoff.ns.cloudflare.com | ||||||
| A | 172.64.35.174🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melnicoff.ns.cloudflare.com | ||||||
| MX | _dc-mx.7bfd662bb275.sqlcoursehub.org ⭐ | ||||||
| A | 209.182.224.91 | ||||||
| TXT | v=spf1 a mx include:relay.mailchannels.net ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.20.48, 172.67.191.89 | ||||||
| IPv6 hints | 2606:4700:3030::6815:1430, 2606:4700:3034::ac43:bf59 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=90, name=cloudflare-ech.com | ||||||
| SOA | kinsley.ns.cloudflare.comdns@cloudflare.com serial=2419391444 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | v0n0.pir-ns.org ⭐ | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| NS | v0n1.pir-ns.org | ||||||
| NS | v0n2.pir-ns.org | ||||||
| SOA | v0n0.pir-ns.orghostmaster@donuts.email serial=1794222753 | ||||||
Same first word
sqlcoursehub.org |
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sqlcraft.org |
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DNS History
7 records (7 active, 0 former)
●NSkinsley.ns.cloudflare.com2026-09-12 → 2026-11-09 · 2 obs
● 2026-11-09 12:00:04
●NSmelnicoff.ns.cloudflare.com2026-09-12 → 2026-11-09 · 2 obs
● 2026-11-09 12:00:04
●MX_dc-mx.7bfd662bb275.sqlcoursehub.org2026-09-12 → 2026-11-09 · 2 obs
● 2026-11-09 12:00:04
●A104.21.20.482026-09-12 → 2026-11-09 · 2 obs
● 2026-11-09 12:00:04
●A172.67.191.892026-09-12 → 2026-11-09 · 2 obs
● 2026-11-09 12:00:04
●A2606:4700:3030::6815:14302026-09-12 → 2026-11-09 · 2 obs
● 2026-11-09 12:00:04
●A2606:4700:3034::ac43:bf592026-09-12 → 2026-11-09 · 2 obs
● 2026-11-09 12:00:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, v0n0.pir-ns.org, v0n1.pir-ns.org... | - |
| sqlcoursehub.org | kinsley.ns.cloudflare.com, melnicoff.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.174
NS records: kinsley.ns.cloudflare.com, melnicoff.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sqlcoursehub.org (unsigned zone)
⏱️ Timing
Total: 765ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.191.89, 104.21.20.48 |
| AAAA | 2 | 2606:4700:3030::6815:1430, 2606:4700:3034::ac43:bf59 |
| NS | 2 | kinsley.ns.cloudflare.com, melnicoff.ns.cloudflare.com |
| MX | 1 | _dc-mx.7bfd662bb275.sqlcoursehub.org (pr |
| TXT | 1 | v=spf1 a mx include:relay.mailchannels.n |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | kinsley.ns.cloudflare.com dns.cloudflare |
Analysis
IP Addresses
sqlcoursehub.org has four IP addresses: 104.21.20.48, 172.67.191.89, 2606:4700:3030::6815:1430 and 2606:4700:3034::ac43:bf59.
Among the host names that share IP numbers with sqlcoursehub.org are 65qpix.com.br, slotsabu.com, claimfixers.com and two others.
Name Servers
sqlcoursehub.org uses two name servers for its delegation: kinsley.ns.cloudflare.com and melnicoff.ns.cloudflare.com.
sqlcoursehub.org has the same name server delegation as a number of other domains, such as truevariant.com, fww-int.com, deepbind.com and two more.
sqlcoursehub.org at least partially shares name servers with other domains, for instance 888scoreng.com, nikahwasila.com, wassink.io and two other.
These name servers are regularly seen alongside nina.ns.cloudflare.com and kareem.ns.cloudflare.com as name servers.
Host names resolving to 6 IP numbers:
Hostname kinsley.ns.cloudflare.com directs to 108.162.194.75, 162.159.38.75 and 172.64.34.75 along with 3 other IP addresses.
Hostname melnicoff.ns.cloudflare.com directs to 108.162.195.174, 162.159.44.174 and 172.64.35.174 along with 3 other IP addresses.
Mail Servers
sqlcoursehub.org routes its mail through a single mail server, _dc-mx.7bfd662bb275.sqlcoursehub.org.
_dc-mx.7bfd662bb275.sqlcoursehub.org directs to just one IP number, 209.182.224.91.