`doubleupdown.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:91fc^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:2f57^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.47.87^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.145.252^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`reza.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ad9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0d9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`reza.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20d9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`reza.ns.cloudflare.com`
		A	108.162.192.217^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	172.64.32.217^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
		A	173.245.58.217^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`reza.ns.cloudflare.com`
NS	`yichun.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`yichun.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`yichun.ns.cloudflare.com`
		A	108.162.193.248^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	172.64.33.248^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
		A	173.245.59.248^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`yichun.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.47.87, 172.67.145.252
		IPv6	2606:4700:3033::ac43:91fc, 2606:4700:3035::6815:2f57
SOA	`reza.ns.cloudflare.com`dns@cloudflare.com serial=2396298553

`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=1774418422

Same first word

doubleupdown.com

DNS History

10 records (6 active, 4 former)

●NSreza.ns.cloudflare.com2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 23:54:50
● 2026-03-25 06:05:42

●NSyichun.ns.cloudflare.com2026-02-15 → 2026-03-25 · 2 obs

● 2026-02-15 23:54:50
● 2026-03-25 06:05:42

●A104.21.47.872026-02-15 → 2026-03-25 · 4 obs

● 2026-02-15 23:54:50
○ 2026-02-20 07:37:38
● 2026-03-25 06:05:40
● 2026-03-25 06:05:42

●A172.67.145.2522026-02-15 → 2026-03-25 · 4 obs

● 2026-02-15 23:54:50
○ 2026-02-20 07:37:38
● 2026-03-25 06:05:40
● 2026-03-25 06:05:42

○A188.114.96.02026-02-20 → 2026-02-20 · 4 obs

○ 2026-02-15 23:54:50
● 2026-02-20 07:37:38
○ 2026-03-25 06:05:40
○ 2026-03-25 06:05:42

○A188.114.97.02026-02-20 → 2026-02-20 · 4 obs

○ 2026-02-15 23:54:50
● 2026-02-20 07:37:38
○ 2026-03-25 06:05:40
○ 2026-03-25 06:05:42

●A2606:4700:3033::ac43:91fc2026-02-15 → 2026-03-25 · 4 obs

● 2026-02-15 23:54:50
○ 2026-02-20 07:37:38
● 2026-03-25 06:05:40
● 2026-03-25 06:05:42

●A2606:4700:3035::6815:2f572026-02-15 → 2026-03-25 · 4 obs

● 2026-02-15 23:54:50
○ 2026-02-20 07:37:38
● 2026-03-25 06:05:40
● 2026-03-25 06:05:42

○A2a06:98c1:3120::2026-02-20 → 2026-02-20 · 4 obs

○ 2026-02-15 23:54:50
● 2026-02-20 07:37:38
○ 2026-03-25 06:05:40
○ 2026-03-25 06:05:42

○A2a06:98c1:3121::2026-02-20 → 2026-02-20 · 4 obs

○ 2026-02-15 23:54:50
● 2026-02-20 07:37:38
○ 2026-03-25 06:05:40
○ 2026-03-25 06:05:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
doubleupdown.com	yichun.ns.cloudflare.com, reza.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.248

NS records: yichun.ns.cloudflare.com, reza.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doubleupdown.com (unsigned zone)

⏱️ Timing

Total: 338ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.145.252, 104.21.47.87`
AAAA	2	`2606:4700:3033::ac43:91fc, 2606:4700:3035::6815:2f57`
NS	2	`reza.ns.cloudflare.com, yichun.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`reza.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

doubleupdown.com maps to four IP numbers: 2606:4700:3033::ac43:91fc, 2606:4700:3035::6815:2f57, 104.21.47.87 and 172.67.145.252.

Other host names, for instance tedilabs.com, dialogue-direct.fr, pashas.co.za, homma.org and mail.dailygigs.in share IP numbers with doubleupdown.com.

Name Servers

Two name servers reza.ns.cloudflare.com and yichun.ns.cloudflare.com are delegated to doubleupdown.com.

doubleupdown.com uses the same name server configuration as other domains, such as voxall.ro, energeticpathways.org, nasavn.com, orielle.ro and v2bv.net.

doubleupdown.com at least partially shares name servers with other domains such as botbenson.com, cnea.fr, phi-foundation.org, sensei.com.br and miffy-cafe-tokyo.jp.

Host names with six IP numbers: Host name reza.ns.cloudflare.com points to 2606:4700:50::adf5:3ad9, 2803:f800:50::6ca2:c0d9, 2a06:98c1:50::ac40:20d9, 108.162.192.217, 172.64.32.217 and 173.245.58.217; host name yichun.ns.cloudflare.com points to 2606:4700:58::adf5:3bf8, 2803:f800:50::6ca2:c1f8, 2a06:98c1:50::ac40:21f8, 108.162.193.248, 172.64.33.248 and 173.245.59.248.

doubleupdown.com - robtex.com