sqlbasics.courses - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

sqlbasics.courses

DNSSEC⚠️ Not signed
A2606:4700:3037::6815:2a3aCloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:c959Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.42.58Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.201.89Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSrandall.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2cebCloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A2803:f800:50::6ca2:c3ebCloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
A2a06:98c1:50::ac40:23ebCloudflare2a06:98c1:50::/45
A108.162.195.235Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A162.159.44.235Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.35.235Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSstella.ns.cloudflare.com
A2606:4700:50::a29f:269aCloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A2803:f800:50::6ca2:c29aCloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
A2a06:98c1:50::ac40:229aCloudflare2a06:98c1:50::/45
A108.162.194.154Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A162.159.38.154Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
A172.64.34.154Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXsmtp.google.com ⭐
A2607:f8b0:4004:c1b::1b🇺🇸 Google2607:f8b0:4004::/48
PTRwv-in-f27.1e100.net
A2607:f8b0:4004:c1d::1a🇺🇸 Google2607:f8b0:4004::/48
PTRww-in-f26.1e100.net
A2607:f8b0:4004:c1d::1b🇺🇸 Google2607:f8b0:4004::/48
PTRww-in-f27.1e100.net
A2607:f8b0:4004:c25::1b🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadtq-in-f27.1e100.net
A172.253.63.26🇺🇸 Google172.253.63.0/24
PTRbi-in-f26.1e100.net
A172.253.115.26🇺🇸 Google172.253.115.0/24
PTRbg-in-f26.1e100.net
A172.253.115.27🇺🇸 Google172.253.115.0/24
PTRbg-in-f27.1e100.net
A172.253.122.26🇺🇸 Google172.253.122.0/24
PTRbh-in-f26.1e100.net
A172.253.122.27🇺🇸 Google172.253.122.0/24
PTRbh-in-f27.1e100.net
TXTgoogle-site-verification=zebRFOjQetOHmkSpSz9odpI9fE8gc9402Kdjzp8X4sQ
TXTv=spf1 include:_spf.google.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.42.58, 172.67.201.89
IPv6 hints2606:4700:3037::6815:2a3a, 2606:4700:3037::ac43:c959
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=12, name=cloudflare-ech.com
SOArandall.ns.cloudflare.comdns@cloudflare.com serial=2417083926

courses

DNSSEC🔒 Signed (DS record present)
NSa.nic.courses ⭐
NSb.nic.courses
NSc.nic.courses
NSx.nic.courses
NSy.nic.courses
NSz.nic.courses
SOAa.nic.coursesadmin@tldns.godaddy serial=1792055974
⚠️ On DNS blocklist: spam-tlds

Same first word

sqlbasics.com
sqlbasics.courses

DNS History

7 records (7 active, 0 former)

NSrandall.ns.cloudflare.comstella.ns.cloudflare.comMXsmtp.google.comA104.21.42.58172.67.201.892606:4700:3037::6815:2a3a2606:4700:3037::ac43:c959
●NSrandall.ns.cloudflare.com2026-08-17 → 2026-10-15 · 2 obs
● 2026-08-17 16:09:06
● 2026-10-15 09:58:42
●NSstella.ns.cloudflare.com2026-08-17 → 2026-10-15 · 2 obs
● 2026-08-17 16:09:06
● 2026-10-15 09:58:42
●MXsmtp.google.com2026-08-17 → 2026-10-15 · 4 obs
● 2026-08-17 16:09:06
○ 2026-09-09 18:33:38
● 2026-09-10 14:12:54
● 2026-10-15 09:58:42
●A104.21.42.582026-08-17 → 2026-10-15 · 4 obs
● 2026-08-17 16:09:06
○ 2026-09-09 18:33:38
● 2026-09-10 14:12:54
● 2026-10-15 09:58:42
●A172.67.201.892026-08-17 → 2026-10-15 · 4 obs
● 2026-08-17 16:09:06
○ 2026-09-09 18:33:38
● 2026-09-10 14:12:54
● 2026-10-15 09:58:42
●A2606:4700:3037::6815:2a3a2026-08-17 → 2026-10-15 · 4 obs
● 2026-08-17 16:09:06
○ 2026-09-09 18:33:38
● 2026-09-10 14:12:54
● 2026-10-15 09:58:42
●A2606:4700:3037::ac43:c9592026-08-17 → 2026-10-15 · 4 obs
● 2026-08-17 16:09:06
○ 2026-09-09 18:33:38
● 2026-09-10 14:12:54
● 2026-10-15 09:58:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coursesa.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses...12 records
sqlbasics.coursesstella.ns.cloudflare.com, randall.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.154

NS records: stella.ns.cloudflare.com, randall.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sqlbasics.courses (unsigned zone)

⏱️ Timing

Total: 1081ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.42.58, 172.67.201.89
AAAA22606:4700:3037::6815:2a3a, 2606:4700:3037::ac43:c959
NS2randall.ns.cloudflare.com, stella.ns.cloudflare.com
MX1smtp.google.com (pri: 1)
TXT2google-site-verification=zebRFOjQetOHmkS, v=spf1 include:_spf.google.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1randall.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.nic.courses, a.nic.courses, b.nic.courses...)

Analysis

IP Addresses

sqlbasics.courses resolves to four IP addresses: 104.21.42.58, 172.67.201.89, 2606:4700:3037::6815:2a3a and 2606:4700:3037::ac43:c959.

Name Servers

Two name servers handle the delegation for sqlbasics.courses: randall.ns.cloudflare.com and stella.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

randall.ns.cloudflare.com resolves to 108.162.195.235, 162.159.44.235 and 172.64.35.235 among others, with 3 other IP addresses in total.

stella.ns.cloudflare.com resolves to 108.162.194.154, 162.159.38.154 and 172.64.34.154 among others, with 3 other IP addresses in total.

Mail Servers

sqlbasics.courses routes its mail through a single mail server, smtp.google.com.

smtp.google.com directs to 9 IP numbers, including 172.253.63.26, 172.253.115.26 and 172.253.115.27, along with 6 other.