`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 → 2026-03-14 · 2 obs

● 2015-07-22 12:28:14
● 2026-03-14 05:30:36

●NSmaria.ns.cloudflare.com2015-07-22 → 2026-03-14 · 2 obs

● 2015-07-22 12:28:14
● 2026-03-14 05:30:36

○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
○ 2026-03-14 05:30:36

●MXroute1.mx.cloudflare.net2026-03-09 → 2026-03-14 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-14 05:30:36

●MXroute2.mx.cloudflare.net2026-03-09 → 2026-03-14 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-14 05:30:36

●MXroute3.mx.cloudflare.net2026-03-09 → 2026-03-14 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-14 05:30:36

○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
○ 2026-03-14 05:30:36

○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
○ 2026-03-14 05:30:36

●A104.21.45.752026-03-09 → 2026-03-14 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-14 05:30:36

●A172.67.211.562026-03-09 → 2026-03-14 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-14 05:30:36

○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
○ 2026-03-14 05:30:36

○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
○ 2026-03-14 05:30:36

○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
○ 2026-03-14 05:30:36

○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
○ 2026-03-14 05:30:36

○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
○ 2026-03-14 05:30:36

●A2606:4700:3031::ac43:d3382026-03-09 → 2026-03-14 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-14 05:30:36

●A2606:4700:3037::6815:2d4b2026-03-09 → 2026-03-14 · 3 obs

○ 2020-01-08 17:08:02
● 2026-03-09 17:57:32
● 2026-03-14 05:30:36

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server: 108.162.192.192

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: 226ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.45.75, 172.67.211.56`
AAAA	2	`2606:4700:3037::6815:2d4b, 2606:4700:3031::ac43:d338`
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 maps 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, for instance semxu.com, advantagebuild.org, riplascrol.pro, yqfoods.com and izmirdefirmalar.com share IP numbers with sqltrainingonline.com.

Name Servers

Two name servers arnold.ns.cloudflare.com and maria.ns.cloudflare.com handle delegation for sqltrainingonline.com.

sqltrainingonline.com uses the same name server setup as other domains, for example goto12.com, sellerscourt.com, coachmykid.com, (0x706f726e)ofb.com and aliiss.com.

sqltrainingonline.com partially shares name servers with other domains; examples include dannir.net, smartergadget.com, cafe-mitra.com, ceea.com.br and coversplay.com.

these name servers are commonly used 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

sqltrainingonline.com is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

sqltrainingonline.com shares some mail servers with other domains, at least partially, such as 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