`sdbestpractices.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:2abb^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:d05c^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.42.187^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.208.92^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ns1.ubmdns.com` ⭐
		A	2400:cb00:2049:1::a29f:d0^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
			PTR	`ns1.ubmdns.com`
		A	162.159.0.208^{Cloudflare162.159.0.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.ubmdns.com`
		A	2400:cb00:2049:1::a29f:1d0^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
			PTR	`ns2.ubmdns.com`
		A	162.159.1.208^{Cloudflare162.159.1.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.ubmdns.com`
TXT	`v=spf1 mx include:spf.ubm-us.net -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.42.187, 172.67.208.92
		IPv6 hints	2606:4700:3031::6815:2abb, 2606:4700:3033::ac43:d05c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=4, name=cloudflare-ech.com
SOA	`ns1.ubmdns.com`dns@cloudflare.com serial=2411194085

`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=1786287194

WOT: UNKNOWN (60/100)

Same first word

sdbestpractices.com

DNS History

18 records (6 active, 12 former)

○NSns1.ubm-us.net2015-05-28 → 2016-12-31 · 4 obs

● 2015-05-28 04:01:56
● 2016-12-31 09:10:34
○ 2018-08-14 16:36:50
○ 2026-08-09 14:55:10

●NSns1.ubmdns.com2018-08-14 → 2026-08-09 · 3 obs

○ 2016-12-31 09:10:34
● 2018-08-14 16:36:50
● 2026-08-09 14:55:10

○NSns2.ubm-us.net2015-05-28 → 2016-12-31 · 4 obs

● 2015-05-28 04:01:56
● 2016-12-31 09:10:34
○ 2018-08-14 16:36:50
○ 2026-08-09 14:55:10

●NSns2.ubmdns.com2018-08-14 → 2026-08-09 · 3 obs

○ 2016-12-31 09:10:34
● 2018-08-14 16:36:50
● 2026-08-09 14:55:10

○NSns3.ubm-us.net2015-05-28 → 2016-12-31 · 4 obs

● 2015-05-28 04:01:56
● 2016-12-31 09:10:34
○ 2018-08-14 16:36:50
○ 2026-08-09 14:55:10

○MXmail1.ubm-us.net2015-05-28 → 2018-08-14 · 4 obs

● 2015-05-28 04:01:56
● 2018-08-14 16:36:50
○ 2026-07-13 10:50:26
○ 2026-08-09 14:55:10

○A104.18.58.722018-08-14 → 2018-08-14 · 4 obs

○ 2016-12-31 09:10:34
● 2018-08-14 16:36:50
○ 2026-07-13 10:50:26
○ 2026-08-09 14:55:10

○A104.18.59.722018-08-14 → 2018-08-14 · 4 obs

○ 2016-12-31 09:10:34
● 2018-08-14 16:36:50
○ 2026-07-13 10:50:26
○ 2026-08-09 14:55:10

●A104.21.42.1872026-07-13 → 2026-08-09 · 3 obs

○ 2018-08-14 16:36:50
● 2026-07-13 10:50:26
● 2026-08-09 14:55:10

●A172.67.208.922026-07-13 → 2026-08-09 · 3 obs

○ 2018-08-14 16:36:50
● 2026-07-13 10:50:26
● 2026-08-09 14:55:10

○A192.155.42.932016-12-31 → 2016-12-31 · 4 obs

○ 2016-04-25 05:47:40
● 2016-12-31 09:10:34
○ 2018-08-14 16:36:50
○ 2026-08-09 14:55:10

○A192.155.48.932015-05-28 → 2016-04-25 · 4 obs

● 2015-05-28 04:01:56
● 2016-04-25 05:47:40
○ 2016-12-31 09:10:34
○ 2026-08-09 14:55:10

○A2400:cb00:2048:1::6812:3a482018-08-14 → 2018-08-14 · 4 obs

○ 2016-12-31 09:10:34
● 2018-08-14 16:36:50
○ 2026-07-13 10:50:26
○ 2026-08-09 14:55:10

○A2400:cb00:2048:1::6812:3b482018-08-14 → 2018-08-14 · 4 obs

○ 2016-12-31 09:10:34
● 2018-08-14 16:36:50
○ 2026-07-13 10:50:26
○ 2026-08-09 14:55:10

●A2606:4700:3031::6815:2abb2026-07-13 → 2026-08-09 · 3 obs

○ 2018-08-14 16:36:50
● 2026-07-13 10:50:26
● 2026-08-09 14:55:10

●A2606:4700:3033::ac43:d05c2026-07-13 → 2026-08-09 · 3 obs

○ 2018-08-14 16:36:50
● 2026-07-13 10:50:26
● 2026-08-09 14:55:10

○A2620:103::192:155:48:932015-05-28 → 2016-04-25 · 4 obs

● 2015-05-28 04:01:56
● 2016-04-25 05:47:40
○ 2016-12-31 09:10:34
○ 2026-08-09 14:55:10

○A2620:103:1:1:192:155:42:932016-12-31 → 2016-12-31 · 4 obs

○ 2016-04-25 05:47:40
● 2016-12-31 09:10:34
○ 2018-08-14 16:36:50
○ 2026-08-09 14:55:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sdbestpractices.com	ns1.ubmdns.com, ns2.ubmdns.com	2 records

✅ Authoritative Response

Server:162.159.1.208

NS records: ns1.ubmdns.com, ns2.ubmdns.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 156ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.42.187, 172.67.208.92`
AAAA	2	`2606:4700:3033::ac43:d05c, 2606:4700:3031::6815:2abb`
NS	2	`ns1.ubmdns.com, ns2.ubmdns.com`
TXT	1	`v=spf1 mx include:spf.ubm-us.net -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ns1.ubmdns.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.ubmdns.com, ns2.ubmdns.com)

Analysis

IP Addresses

sdbestpractices.com points to the four IP addresses 104.21.42.187, 172.67.208.92, 2606:4700:3031::6815:2abb and 2606:4700:3033::ac43:d05c.

Additional host names — m.galebet1058.com, coachhireinkent.co.uk, amp.happyinternationalschool.com and two others — share IP numbers with sdbestpractices.com.

Name Servers

Two name servers handle the delegation for sdbestpractices.com: ns1.ubmdns.com and ns2.ubmdns.com.

sdbestpractices.com shares its name server setup with other domains, including themaydesignseries.co.uk, health-lp.eu, atcglobalexpo.co.uk and two others.

sdbestpractices.com is at least partially co-delegated on name servers with other domains, such as ubmlive.com.

ns1.ubmdns.com and ns2.ubmdns.com both carry two IP addresses. The A records for ns1.ubmdns.com are 162.159.0.208 and 2400:cb00:2049:1::a29f:d0; the A records for ns2.ubmdns.com are 162.159.1.208 and 2400:cb00:2049:1::a29f:1d0.

sdbestpractices.com - robtex.com