`blackwidowchallenge.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:bbfb^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:7c1^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.7.193^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.187.251^{🇺🇸 Cloudflare172.67.176.0/20 , 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	104.21.7.193, 172.67.187.251
		IPv6	2606:4700:3033::ac43:bbfb, 2606:4700:3037::6815:7c1
SOA	`ns1.ubmdns.com`dns@cloudflare.com serial=2398749183

`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

WOT: UNKNOWN (61/100)

Same first word

blackwidowchallenge.com

DNS History

15 records (6 active, 9 former)

○NSns1.ubm-us.net2015-08-12 → 2016-12-13 · 4 obs

● 2015-08-12 21:25:30
● 2016-12-13 22:00:02
○ 2017-08-20 19:44:38
○ 2026-03-23 14:49:28

●NSns1.ubmdns.com2026-02-20 → 2026-03-23 · 3 obs

○ 2017-08-20 19:44:38
● 2026-02-20 03:03:48
● 2026-03-23 14:49:28

○NSns1.ubmits.com2017-08-20 → 2017-08-20 · 4 obs

○ 2016-12-13 22:00:02
● 2017-08-20 19:44:38
○ 2026-02-20 03:03:48
○ 2026-03-23 14:49:28

○NSns2.ubm-us.net2015-08-12 → 2016-12-13 · 4 obs

● 2015-08-12 21:25:30
● 2016-12-13 22:00:02
○ 2017-08-20 19:44:38
○ 2026-03-23 14:49:28

●NSns2.ubmdns.com2026-02-20 → 2026-03-23 · 3 obs

○ 2017-08-20 19:44:38
● 2026-02-20 03:03:48
● 2026-03-23 14:49:28

○NSns2.ubmits.com2017-08-20 → 2017-08-20 · 4 obs

○ 2016-12-13 22:00:02
● 2017-08-20 19:44:38
○ 2026-02-20 03:03:48
○ 2026-03-23 14:49:28

○NSns3.ubm-us.net2015-08-12 → 2016-12-13 · 4 obs

● 2015-08-12 21:25:30
● 2016-12-13 22:00:02
○ 2017-08-20 19:44:38
○ 2026-03-23 14:49:28

○NSns3.ubmits.com2017-08-20 → 2017-08-20 · 4 obs

○ 2016-12-13 22:00:02
● 2017-08-20 19:44:38
○ 2026-02-20 03:03:48
○ 2026-03-23 14:49:28

○MXmailhost.ubm-us.net2015-08-12 → 2017-08-20 · 4 obs

● 2015-08-12 21:25:30
● 2017-08-20 19:44:38
○ 2026-02-20 03:03:48
○ 2026-03-23 14:49:28

●A104.21.7.1932026-02-20 → 2026-03-23 · 3 obs

○ 2017-08-20 19:44:38
● 2026-02-20 03:03:48
● 2026-03-23 14:49:28

●A172.67.187.2512026-02-20 → 2026-03-23 · 3 obs

○ 2017-08-20 19:44:38
● 2026-02-20 03:03:48
● 2026-03-23 14:49:28

○A192.155.48.932015-08-12 → 2017-08-20 · 4 obs

● 2015-08-12 21:25:30
● 2017-08-20 19:44:38
○ 2026-02-20 03:03:48
○ 2026-03-23 14:49:28

●A2606:4700:3033::ac43:bbfb2026-02-20 → 2026-03-23 · 3 obs

○ 2017-08-20 19:44:38
● 2026-02-20 03:03:48
● 2026-03-23 14:49:28

●A2606:4700:3037::6815:7c12026-02-20 → 2026-03-23 · 3 obs

○ 2017-08-20 19:44:38
● 2026-02-20 03:03:48
● 2026-03-23 14:49:28

○A2620:103::192:155:48:932015-08-12 → 2017-08-20 · 4 obs

● 2015-08-12 21:25:30
● 2017-08-20 19:44:38
○ 2026-02-20 03:03:48
○ 2026-03-23 14:49:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, j.gtld-servers.net...	-
blackwidowchallenge.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: 392ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.7.193, 172.67.187.251`
AAAA	2	`2606:4700:3033::ac43:bbfb, 2606:4700:3037::6815:7c1`
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

blackwidowchallenge.com points to four IP numbers: 2606:4700:3033::ac43:bbfb, 2606:4700:3037::6815:7c1, 104.21.7.193 and 172.67.187.251.

Other host names, for instance pongoffice.com, zofawupaiaindustriesltd.digital, www.rockytour.co.kr, 1picstop.com and gusunews.com share IP numbers with blackwidowchallenge.com.

Name Servers

blackwidowchallenge.com is delegated to two name servers: ns1.ubmdns.com and ns2.ubmdns.com.

blackwidowchallenge.com uses the same name server setup as other domains, for instance fintechexpo.com, devopsfusion.com, bandsd.com, outdoorlivingevent.com and interiors-ldn.net.

Host names with two IP numbers:

The host ns1.ubmdns.com points to 2400:cb00:2049:1::a29f:d0 and 162.159.0.208.

The host ns2.ubmdns.com points to 2400:cb00:2049:1::a29f:1d0 and 162.159.1.208.

blackwidowchallenge.com - robtex.com