`sqltrainingonline.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:d338^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:2d4b^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.45.75^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.211.56^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arnold.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b45^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c145^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`arnold.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2145^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`arnold.ns.cloudflare.com`
		A	108.162.193.69^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	172.64.33.69^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
		A	173.245.59.69^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`arnold.ns.cloudflare.com`
NS	`maria.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ac0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0c0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`maria.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20c0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`maria.ns.cloudflare.com`
		A	108.162.192.192^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	172.64.32.192^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
		A	173.245.58.192^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`maria.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽⁴⁹⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽⁷³⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`MS=ms16800857`
TXT	`google-site-verification=-JO07alXa2_4UTXFc1pGsHUWpSucpD2j74zM2rsORE0`
TXT	`google-site-verification=LxJL3Hjhu-P4TEkVYPAo9MtxGzEPrD9eKD-8BkXWHIs`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.45.75, 172.67.211.56
		IPv6	2606:4700:3031::ac43:d338, 2606:4700:3037::6815:2d4b
SOA	`arnold.ns.cloudflare.com`dns@cloudflare.com serial=2398574793

`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.net`nstld@verisign-grs.com serial=1771291435

Subdomains

c.sqltrainingonline.com

Same first word

sqltrainingonline.com

DNS History

17 records (9 active, 8 former)

●NSarnold.ns.cloudflare.com2015-07-22 → 2026-03-13 · 2 obs

● 2015-07-22 12:28:14
● 2026-03-13 23:31:24

●NSmaria.ns.cloudflare.com2015-07-22 → 2026-03-13 · 2 obs

● 2015-07-22 12:28:14
● 2026-03-13 23:31:24

○MXmail.sqltrainingonline.com2015-07-22 → 2020-01-08 · 4 obs

● 2015-07-22 12:28:14
● 2020-01-08 17:08:02
○ 2026-03-09 17:57:32
○ 2026-03-13 23:31:24

●MXroute1.mx.cloudflare.net2026-03-09 → 2026-03-13 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-13 23:31:24

●MXroute2.mx.cloudflare.net2026-03-09 → 2026-03-13 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-13 23:31:24

●MXroute3.mx.cloudflare.net2026-03-09 → 2026-03-13 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-13 23:31:24

○A104.18.60.542015-07-22 → 2020-01-08 · 8 obs

● 2015-07-22 12:28:14
● 2015-11-21 13:20:44
○ 2016-02-09 14:42:20
○ 2016-06-18 01:10:50
● 2017-02-07 12:56:40
● 2020-01-08 17:08:02
○ 2026-03-09 17:57:32
○ 2026-03-13 23:31:24

○A104.18.61.542015-07-22 → 2020-01-08 · 8 obs

● 2015-07-22 12:28:14
● 2015-11-21 13:20:44
○ 2016-02-09 14:42:20
○ 2016-06-18 01:10:50
● 2017-02-07 12:56:40
● 2020-01-08 17:08:02
○ 2026-03-09 17:57:32
○ 2026-03-13 23:31:24

●A104.21.45.752026-03-09 → 2026-03-13 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-13 23:31:24

●A172.67.211.562026-03-09 → 2026-03-13 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-13 23:31:24

○A206.217.198.582016-02-09 → 2016-06-18 · 5 obs

○ 2015-11-21 13:20:44
● 2016-02-09 14:42:20
● 2016-06-18 01:10:50
○ 2017-02-07 12:56:40
○ 2026-03-13 23:31:24

○A2400:cb00:2048:1::6812:3c362015-07-22 → 2017-02-07 · 7 obs

● 2015-07-22 12:28:14
● 2015-11-21 13:20:44
○ 2016-02-09 14:42:20
○ 2016-06-18 01:10:50
● 2017-02-07 12:56:40
○ 2020-01-08 17:08:02
○ 2026-03-13 23:31:24

○A2400:cb00:2048:1::6812:3d362015-07-22 → 2017-02-07 · 7 obs

● 2015-07-22 12:28:14
● 2015-11-21 13:20:44
○ 2016-02-09 14:42:20
○ 2016-06-18 01:10:50
● 2017-02-07 12:56:40
○ 2020-01-08 17:08:02
○ 2026-03-13 23:31:24

○A2606:4700:30::6812:3c362020-01-08 → 2020-01-08 · 4 obs

○ 2017-02-07 12:56:40
● 2020-01-08 17:08:02
○ 2026-03-09 17:57:32
○ 2026-03-13 23:31:24

○A2606:4700:30::6812:3d362020-01-08 → 2020-01-08 · 4 obs

○ 2017-02-07 12:56:40
● 2020-01-08 17:08:02
○ 2026-03-09 17:57:32
○ 2026-03-13 23:31:24

●A2606:4700:3031::ac43:d3382026-03-09 → 2026-03-13 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-13 23:31:24

●A2606:4700:3037::6815:2d4b2026-03-09 → 2026-03-13 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-13 23:31:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net...	-
sqltrainingonline.com	arnold.ns.cloudflare.com, maria.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 172.64.33.69

NS records: arnold.ns.cloudflare.com, maria.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sqltrainingonline.com (unsigned zone)

⏱️ Timing

Total: 221ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.45.75, 172.67.211.56`
AAAA	2	`2606:4700:3031::ac43:d338, 2606:4700:3037::6815:2d4b`
NS	2	`arnold.ns.cloudflare.com, maria.ns.cloudflare.com`
MX	3	`route3.mx.cloudflare.net (pri: 30), route1.mx.cloudflare.net (pri: 49)...`
TXT	4	`MS=ms16800857, google-site-verification=-JO07alXa2_4UTX...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`arnold.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (arnold.ns.cloudflare.com, arnold.ns.cloudflare.com, arnold.ns.cloudflare.com...)

Analysis

Hierarchy

The parent of c.sqltrainingonline.com is sqltrainingonline.com.

IP Addresses

sqltrainingonline.com resolves to four IP numbers: 2606:4700:3031::ac43:d338, 2606:4700:3037::6815:2d4b, 104.21.45.75 and 172.67.211.56.

Other host names such as semxu.com, advantagebuild.org, riplascrol.pro, yqfoods.com and izmirdefirmalar.com share IPs with sqltrainingonline.com.

Name Servers

sqltrainingonline.com is delegated to two name servers: arnold.ns.cloudflare.com and maria.ns.cloudflare.com.

sqltrainingonline.com shares the same name server setup as goto12.com, sellerscourt.com, coachmykid.com, (0x706f726e)ofb.com and aliiss.com.

sqltrainingonline.com at least partially shares name servers with other domains, for instance dannir.net, smartergadget.com, cafe-mitra.com, ceea.com.br and coversplay.com.

these name servers are often used in conjunction with the name servers bart.ns.cloudflare.com.

Host names with six IP numbers:

arnold.ns.cloudflare.com points to 2606:4700:58::adf5:3b45, 2803:f800:50::6ca2:c145, 2a06:98c1:50::ac40:2145, 108.162.193.69, 172.64.33.69 and 173.245.59.69.

maria.ns.cloudflare.com points to 2606:4700:50::adf5:3ac0, 2803:f800:50::6ca2:c0c0, 2a06:98c1:50::ac40:20c0, 108.162.192.192, 172.64.32.192 and 173.245.58.192.

Mail Servers

Three mail servers handle sqltrainingonline.com: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

sqltrainingonline.com shares at least partially some mail servers with other domains, including hp-dcs.com, manhattan-nyc.com, mvpilot.com.br, ordadmsh.ru and novachart.ai.

Host names with six IP numbers:

route1.mx.cloudflare.net points to: 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13.

route2.mx.cloudflare.net points to: 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19.

route3.mx.cloudflare.net points to: 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.

sqltrainingonline.com - robtex.com