`drdobbsonline.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:9cda^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:833^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.51^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.156.218^{🇺🇸 Cloudflare172.67.144.0/20 , 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	104.21.8.51, 172.67.156.218
		IPv6 hints	2606:4700:3035::ac43:9cda, 2606:4700:3037::6815:833
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=111, name=cloudflare-ech.com
SOA	`ns1.ubmdns.com`dns@cloudflare.com serial=2409118376

`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=1784365587

Same first word

drdobbsonline.com

DNS History

15 records (6 active, 9 former)

○NSns1.ubm-us.net2015-07-22 → 2016-11-20 · 4 obs

● 2015-07-22 21:56:50
● 2016-11-20 17:38:18
○ 2017-05-21 21:10:26
○ 2026-07-18 09:20:10

●NSns1.ubmdns.com2026-07-13 → 2026-07-18 · 3 obs

○ 2017-05-21 21:10:26
● 2026-07-13 11:02:44
● 2026-07-18 09:20:10

○NSns1.ubmits.com2017-05-21 → 2017-05-21 · 4 obs

○ 2016-11-20 17:38:18
● 2017-05-21 21:10:26
○ 2026-07-13 11:02:44
○ 2026-07-18 09:20:10

○NSns2.ubm-us.net2015-07-22 → 2016-11-20 · 4 obs

● 2015-07-22 21:56:50
● 2016-11-20 17:38:18
○ 2017-05-21 21:10:26
○ 2026-07-18 09:20:10

●NSns2.ubmdns.com2026-07-13 → 2026-07-18 · 3 obs

○ 2017-05-21 21:10:26
● 2026-07-13 11:02:44
● 2026-07-18 09:20:10

○NSns2.ubmits.com2017-05-21 → 2017-05-21 · 4 obs

○ 2016-11-20 17:38:18
● 2017-05-21 21:10:26
○ 2026-07-13 11:02:44
○ 2026-07-18 09:20:10

○NSns3.ubm-us.net2015-07-22 → 2016-11-20 · 4 obs

● 2015-07-22 21:56:50
● 2016-11-20 17:38:18
○ 2017-05-21 21:10:26
○ 2026-07-18 09:20:10

○NSns3.ubmits.com2017-05-21 → 2017-05-21 · 4 obs

○ 2016-11-20 17:38:18
● 2017-05-21 21:10:26
○ 2026-07-13 11:02:44
○ 2026-07-18 09:20:10

○MXmail1.ubm-us.net2015-07-22 → 2017-05-21 · 4 obs

● 2015-07-22 21:56:50
● 2017-05-21 21:10:26
○ 2026-07-13 11:02:44
○ 2026-07-18 09:20:10

●A104.21.8.512026-07-13 → 2026-07-18 · 3 obs

○ 2017-05-21 21:10:26
● 2026-07-13 11:02:44
● 2026-07-18 09:20:10

●A172.67.156.2182026-07-13 → 2026-07-18 · 3 obs

○ 2017-05-21 21:10:26
● 2026-07-13 11:02:44
● 2026-07-18 09:20:10

○A192.155.48.932015-07-22 → 2017-05-21 · 4 obs

● 2015-07-22 21:56:50
● 2017-05-21 21:10:26
○ 2026-07-13 11:02:44
○ 2026-07-18 09:20:10

●A2606:4700:3035::ac43:9cda2026-07-13 → 2026-07-18 · 3 obs

○ 2017-05-21 21:10:26
● 2026-07-13 11:02:44
● 2026-07-18 09:20:10

●A2606:4700:3037::6815:8332026-07-13 → 2026-07-18 · 3 obs

○ 2017-05-21 21:10:26
● 2026-07-13 11:02:44
● 2026-07-18 09:20:10

○A2620:103::192:155:48:932015-07-22 → 2017-05-21 · 4 obs

● 2015-07-22 21:56:50
● 2017-05-21 21:10:26
○ 2026-07-13 11:02:44
○ 2026-07-18 09:20:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
drdobbsonline.com	ns1.ubmdns.com, ns2.ubmdns.com	2 records

✅ Authoritative Response

Server:162.159.0.208

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 142ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.8.51, 172.67.156.218`
AAAA	2	`2606:4700:3037::6815:833, 2606:4700:3035::ac43:9cda`
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

drdobbsonline.com directs to four IP numbers, which are 104.21.8.51, 172.67.156.218, 2606:4700:3035::ac43:9cda and 2606:4700:3037::6815:833.

2tim2-2.com, ilyass.me, strefa-ruchu.com.pl and two other host names share IP numbers with drdobbsonline.com.

Name Servers

The NS records for drdobbsonline.com delegate to ns1.ubmdns.com and ns2.ubmdns.com.

drdobbsonline.com uses the same name servers as several other domains — among them officemoves.co, techcareers.org, airlineengineering-latinamerica.com and two more.

ns1.ubmdns.com resolves to 162.159.0.208 and 2400:cb00:2049:1::a29f:d0. Likewise, ns2.ubmdns.com resolves to 162.159.1.208 and 2400:cb00:2049:1::a29f:1d0 — two IP addresses apiece.

drdobbsonline.com - robtex.com