b2open.com - dns.ninja

`b2open.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:bd06^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:2bf0^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.43.240^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.189.6^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`barbara.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`barbara.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`barbara.ns.cloudflare.com`
		A	108.162.192.248^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	172.64.32.248^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
		A	173.245.58.248^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`barbara.ns.cloudflare.com`
NS	`donald.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b9e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donald.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c19e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`donald.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:219e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`donald.ns.cloudflare.com`
		A	108.162.193.158^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donald.ns.cloudflare.com`
		A	172.64.33.158^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donald.ns.cloudflare.com`
		A	173.245.59.158^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`donald.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c07::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f27.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`google-site-verification=NJwKCpPIAydyiioYhVGJBxdpsxc5KYHgVEmaPAOLa50`
TXT	`google-site-verification=ZSz4kBgPgdE3MI9S8yCXBNKuF-Y75HYm807zbQizZ_4`
TXT	`google-site-verification=mTF0dPLyZ1s0IcO_pXyGF5GEAwXvQkChuZXqYCFb98A`
TXT	`google-site-verification=zmXEgL2NU2Snxm78SYXt1aQSpGj73IxlO5vFhqy0PHE`
TXT	`v=spf1 ip4:192.185.176.156 ip4:45.79.210.173 ip4:192.185.208.55 include:websi...`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.43.240, 172.67.189.6
		IPv6 hints	2606:4700:3030::ac43:bd06, 2606:4700:3033::6815:2bf0
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=188, name=cloudflare-ech.com
SOA	`barbara.ns.cloudflare.com`dns@cloudflare.com serial=2409660736

`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=1784842832

Previously MX for

b2open.com

Subdomains

tilapia.b2open.com

Same first word

b2open.com

Similar names

open2b.com

2bopen.net

open2b.net

2bopen.ca

2bopen.co.il

2bopen.com

2bopen.org

DNS History

29 records (11 active, 18 former)

●NSbarbara.ns.cloudflare.com2026-03-18 → 2026-07-23 · 3 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
● 2026-07-23 21:49:56

●NSdonald.ns.cloudflare.com2026-03-18 → 2026-07-23 · 3 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
● 2026-07-23 21:49:56

○NSns1.linode.com2016-05-02 → 2018-08-01 · 5 obs

○ 2016-02-23 15:49:16
● 2016-05-02 00:08:46
● 2018-08-01 21:04:08
○ 2026-03-18 04:29:48
○ 2026-07-23 21:49:56

○NSns150.hostgator.com.br2016-02-23 → 2016-02-23 · 3 obs

● 2016-02-23 15:49:16
○ 2016-05-02 00:08:46
○ 2026-07-23 21:49:56

○NSns151.hostgator.com.br2016-02-23 → 2016-02-23 · 3 obs

● 2016-02-23 15:49:16
○ 2016-05-02 00:08:46
○ 2026-07-23 21:49:56

○NSns2.linode.com2016-05-02 → 2018-08-01 · 5 obs

○ 2016-02-23 15:49:16
● 2016-05-02 00:08:46
● 2018-08-01 21:04:08
○ 2026-03-18 04:29:48
○ 2026-07-23 21:49:56

○NSns3.linode.com2016-05-02 → 2018-08-01 · 5 obs

○ 2016-02-23 15:49:16
● 2016-05-02 00:08:46
● 2018-08-01 21:04:08
○ 2026-03-18 04:29:48
○ 2026-07-23 21:49:56

○NSns4.linode.com2016-05-02 → 2018-08-01 · 5 obs

○ 2016-02-23 15:49:16
● 2016-05-02 00:08:46
● 2018-08-01 21:04:08
○ 2026-03-18 04:29:48
○ 2026-07-23 21:49:56

○NSns5.linode.com2016-05-02 → 2018-08-01 · 5 obs

○ 2016-02-23 15:49:16
● 2016-05-02 00:08:46
● 2018-08-01 21:04:08
○ 2026-03-18 04:29:48
○ 2026-07-23 21:49:56

●MXalt1.aspmx.l.google.com2026-03-18 → 2026-07-23 · 3 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
● 2026-07-23 21:49:56

●MXalt2.aspmx.l.google.com2026-03-18 → 2026-07-23 · 3 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
● 2026-07-23 21:49:56

●MXalt3.aspmx.l.google.com2026-03-18 → 2026-07-23 · 3 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
● 2026-07-23 21:49:56

●MXalt4.aspmx.l.google.com2026-03-18 → 2026-07-23 · 3 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
● 2026-07-23 21:49:56

●MXaspmx.l.google.com2026-03-18 → 2026-07-23 · 3 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
● 2026-07-23 21:49:56

○MXb2open.com2016-02-23 → 2016-02-23 · 3 obs

● 2016-02-23 15:49:16
○ 2016-05-02 00:08:46
○ 2026-07-23 21:49:56

○MXmail.b2open.com2016-05-02 → 2018-08-01 · 5 obs

○ 2016-02-23 15:49:16
● 2016-05-02 00:08:46
● 2018-08-01 21:04:08
○ 2026-03-18 04:29:48
○ 2026-07-23 21:49:56

●A104.21.43.2402026-04-12 → 2026-07-23 · 6 obs

○ 2026-03-18 04:29:48
● 2026-04-12 11:59:06
● 2026-04-14 21:09:34
○ 2026-04-16 14:45:52
● 2026-04-24 19:26:32
● 2026-07-23 21:49:56

●A172.67.189.62026-04-12 → 2026-07-23 · 6 obs

○ 2026-03-18 04:29:48
● 2026-04-12 11:59:06
● 2026-04-14 21:09:34
○ 2026-04-16 14:45:52
● 2026-04-24 19:26:32
● 2026-07-23 21:49:56

○A188.114.96.02026-03-18 → 2026-04-16 · 7 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
○ 2026-04-12 11:59:06
○ 2026-04-14 21:09:34
● 2026-04-16 14:45:52
○ 2026-04-24 19:26:32
○ 2026-07-23 21:49:56

○A188.114.97.02026-03-18 → 2026-04-16 · 7 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
○ 2026-04-12 11:59:06
○ 2026-04-14 21:09:34
● 2026-04-16 14:45:52
○ 2026-04-24 19:26:32
○ 2026-07-23 21:49:56

○A192.185.208.552016-02-23 → 2016-02-23 · 3 obs

● 2016-02-23 15:49:16
○ 2016-05-02 00:08:46
○ 2026-07-23 21:49:56

○A2600:3c02::f03c:91ff:fe55:d3f82016-05-02 → 2018-08-01 · 5 obs

○ 2016-02-23 15:49:16
● 2016-05-02 00:08:46
● 2018-08-01 21:04:08
○ 2026-03-18 04:29:48
○ 2026-07-23 21:49:56

●A2606:4700:3030::ac43:bd062026-06-22 → 2026-07-23 · 3 obs

○ 2026-06-14 00:54:12
● 2026-06-22 02:27:02
● 2026-07-23 21:49:56

●A2606:4700:3033::6815:2bf02026-06-22 → 2026-07-23 · 3 obs

○ 2026-06-14 00:54:12
● 2026-06-22 02:27:02
● 2026-07-23 21:49:56

○A2606:4700:3034::6815:2bf02026-04-12 → 2026-06-14 · 8 obs

○ 2026-03-18 04:29:48
● 2026-04-12 11:59:06
● 2026-04-14 21:09:34
○ 2026-04-16 14:45:52
● 2026-04-24 19:26:32
● 2026-06-14 00:54:12
○ 2026-06-22 02:27:02
○ 2026-07-23 21:49:56

○A2606:4700:3037::ac43:bd062026-04-12 → 2026-06-14 · 8 obs

○ 2026-03-18 04:29:48
● 2026-04-12 11:59:06
● 2026-04-14 21:09:34
○ 2026-04-16 14:45:52
● 2026-04-24 19:26:32
● 2026-06-14 00:54:12
○ 2026-06-22 02:27:02
○ 2026-07-23 21:49:56

○A2a06:98c1:3120::2026-03-18 → 2026-04-16 · 7 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
○ 2026-04-12 11:59:06
○ 2026-04-14 21:09:34
● 2026-04-16 14:45:52
○ 2026-04-24 19:26:32
○ 2026-07-23 21:49:56

○A2a06:98c1:3121::2026-03-18 → 2026-04-16 · 7 obs

○ 2018-08-01 21:04:08
● 2026-03-18 04:29:48
○ 2026-04-12 11:59:06
○ 2026-04-14 21:09:34
● 2026-04-16 14:45:52
○ 2026-04-24 19:26:32
○ 2026-07-23 21:49:56

○A45.79.210.1732016-05-02 → 2018-08-01 · 5 obs

○ 2016-02-23 15:49:16
● 2016-05-02 00:08:46
● 2018-08-01 21:04:08
○ 2026-03-18 04:29:48
○ 2026-07-23 21:49:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
b2open.com	donald.ns.cloudflare.com, barbara.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.158

NS records: donald.ns.cloudflare.com, barbara.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for b2open.com (unsigned zone)

⏱️ Timing

Total: 315ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.189.6, 104.21.43.240`
AAAA	2	`2606:4700:3030::ac43:bd06, 2606:4700:3033::6815:2bf0`
NS	2	`barbara.ns.cloudflare.com, donald.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	5	`google-site-verification=NJwKCpPIAydyiio, google-site-verification=ZSz4kBgPgdE3MI9...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`barbara.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

b2open.com is a parent domain of tilapia.b2open.com.

IP Addresses

b2open.com has four IP addresses: 104.21.43.240, 172.67.189.6, 2606:4700:3030::ac43:bd06 and 2606:4700:3033::6815:2bf0.

a1005.a-markets.org, i0214.a-markets.org, adsbolahit.xyz plus two other host names have IP numbers in common with b2open.com.

Name Servers

b2open.com uses two name servers for its delegation: barbara.ns.cloudflare.com and donald.ns.cloudflare.com.

The name server configuration of b2open.com is shared with other domains, for instance lopsekukke.workers.dev, 89801199.com, aitoptier.com and two others.

b2open.com shares at least some of its name servers with other domains, including xfyyjs.com, starenrojo.com, p1x4m7k.com and two others.

These name servers are frequently paired with the name servers magnolia.ns.cloudflare.com and trevor.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname barbara.ns.cloudflare.com directs to 108.162.192.248, 172.64.32.248 and 173.245.58.248 along with 3 other IP addresses.

Hostname donald.ns.cloudflare.com directs to 108.162.193.158, 172.64.33.158 and 173.245.59.158 along with 3 other IP addresses.

Mail Servers

Mail for b2open.com is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by b2open.com are shared with other domains: ns500758.ns500758.ns500758.ns500759.ns500698.ns500736.ns500735.ns500735.ns500698.ns500698.ns500576.ns500576.ns500686.ns500576.ns500619.trackreceptor.com, ns500758.ns500759.ns500758.ns500735.ns500736.ns500698.ns500736.ns500698.ns500698.ns500708.ns500698.ns500576.ns500576.ns500619.ns500619.trackreceptor.com, ns500698.ns500698.ns500758.ns500758.ns500736.ns500698.ns500698.ns500735.ns500576.ns500576.ns500686.ns500698.ns500619.ns500619.trackreceptor.com and two others among them.

These mail servers are often deployed together with alt4.aspmx.l.google.com, alt3.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.

Host names pointing to two IP addresses:

aspmx.l.google.com directs traffic to 172.253.122.27 and 2607:f8b0:4004:c07::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1b.