b2learn.com - dns.ninja

`b2learn.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:a1b2^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:f31^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.15.49^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.161.178^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`piers.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c10^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`piers.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c310^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`piers.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2310^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`piers.ns.cloudflare.com`
		A	108.162.195.16^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`piers.ns.cloudflare.com`
		A	162.159.44.16^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`piers.ns.cloudflare.com`
		A	172.64.35.16^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`piers.ns.cloudflare.com`
NS	`savanna.ns.cloudflare.com`
		A	2606:4700:50::a29f:2688^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`savanna.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c288^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`savanna.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2288^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`savanna.ns.cloudflare.com`
		A	108.162.194.136^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`savanna.ns.cloudflare.com`
		A	162.159.38.136^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`savanna.ns.cloudflare.com`
		A	172.64.34.136^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`savanna.ns.cloudflare.com`
MX	`mx1.mailchannels.net` ⭐
		A	54.187.177.89^{🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix}
			PTR	`ec2-54-187-177-89.us-west-2.compute.amazonaws.com`
MX	`mx2.mailchannels.net` ⭐
		A	54.187.177.89^{🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix}
			PTR	`ec2-54-187-177-89.us-west-2.compute.amazonaws.com`
TXT	`v=spf1 include:netblocks.dreamhost.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.15.49, 172.67.161.178
		IPv6 hints	2606:4700:3033::ac43:a1b2, 2606:4700:3036::6815:f31
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=25, name=cloudflare-ech.com
SOA	`piers.ns.cloudflare.com`dns@cloudflare.com serial=2408359124

`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=1785589502

Previously MX for

b2learn.com

Same first word

b2learn.com

Similar names

learn2b.com

DNS History

20 records (8 active, 12 former)

○NShns1.beyondhosting.net2015-06-07 → 2016-04-24 · 4 obs

● 2015-06-07 07:27:24
● 2016-04-24 22:02:34
○ 2017-01-31 03:25:00
○ 2026-08-01 13:14:36

○NShns2.beyondhosting.net2015-06-07 → 2016-04-24 · 4 obs

● 2015-06-07 07:27:24
● 2016-04-24 22:02:34
○ 2017-01-31 03:25:00
○ 2026-08-01 13:14:36

○NSns1.dreamhost.com2019-03-30 → 2019-03-30 · 4 obs

○ 2017-01-31 03:25:00
● 2019-03-30 23:20:08
○ 2026-02-16 09:55:48
○ 2026-08-01 13:14:36

○NSns2.dreamhost.com2019-03-30 → 2019-03-30 · 4 obs

○ 2017-01-31 03:25:00
● 2019-03-30 23:20:08
○ 2026-02-16 09:55:48
○ 2026-08-01 13:14:36

○NSns3.dreamhost.com2019-03-30 → 2019-03-30 · 4 obs

○ 2017-01-31 03:25:00
● 2019-03-30 23:20:08
○ 2026-02-16 09:55:48
○ 2026-08-01 13:14:36

●NSpiers.ns.cloudflare.com2026-02-16 → 2026-08-01 · 3 obs

○ 2019-03-30 23:20:08
● 2026-02-16 09:55:48
● 2026-08-01 13:14:36

●NSsavanna.ns.cloudflare.com2026-02-16 → 2026-08-01 · 3 obs

○ 2019-03-30 23:20:08
● 2026-02-16 09:55:48
● 2026-08-01 13:14:36

○MXb2learn.com2015-06-07 → 2016-04-24 · 4 obs

● 2015-06-07 07:27:24
● 2016-04-24 22:02:34
○ 2017-01-31 03:25:00
○ 2026-08-01 13:14:36

●MXmx1.mailchannels.net2026-02-16 → 2026-08-01 · 3 obs

○ 2019-03-30 23:20:08
● 2026-02-16 09:55:48
● 2026-08-01 13:14:36

●MXmx2.mailchannels.net2026-02-16 → 2026-08-01 · 3 obs

○ 2019-03-30 23:20:08
● 2026-02-16 09:55:48
● 2026-08-01 13:14:36

○MXvade-in1.mail.dreamhost.com2019-03-30 → 2019-03-30 · 4 obs

○ 2017-01-31 03:25:00
● 2019-03-30 23:20:08
○ 2026-02-16 09:55:48
○ 2026-08-01 13:14:36

○MXvade-in2.mail.dreamhost.com2019-03-30 → 2019-03-30 · 4 obs

○ 2017-01-31 03:25:00
● 2019-03-30 23:20:08
○ 2026-02-16 09:55:48
○ 2026-08-01 13:14:36

●A104.21.15.492026-02-16 → 2026-08-01 · 3 obs

○ 2019-03-30 23:20:08
● 2026-02-16 09:55:48
● 2026-08-01 13:14:36

●A172.67.161.1782026-02-16 → 2026-08-01 · 3 obs

○ 2019-03-30 23:20:08
● 2026-02-16 09:55:48
● 2026-08-01 13:14:36

○A2606:4700:3032::ac43:a1b22026-02-16 → 2026-06-17 · 5 obs

○ 2019-03-30 23:20:08
● 2026-02-16 09:55:48
● 2026-06-17 12:14:04
○ 2026-07-08 09:10:46
○ 2026-08-01 13:14:36

●A2606:4700:3033::ac43:a1b22026-07-08 → 2026-08-01 · 3 obs

○ 2026-06-17 12:14:04
● 2026-07-08 09:10:46
● 2026-08-01 13:14:36

●A2606:4700:3036::6815:f312026-07-08 → 2026-08-01 · 3 obs

○ 2026-06-17 12:14:04
● 2026-07-08 09:10:46
● 2026-08-01 13:14:36

○A2606:4700:3037::6815:f312026-02-16 → 2026-06-17 · 5 obs

○ 2019-03-30 23:20:08
● 2026-02-16 09:55:48
● 2026-06-17 12:14:04
○ 2026-07-08 09:10:46
○ 2026-08-01 13:14:36

○A75.119.216.582019-03-30 → 2019-03-30 · 4 obs

○ 2017-01-31 03:25:00
● 2019-03-30 23:20:08
○ 2026-02-16 09:55:48
○ 2026-08-01 13:14:36

○A8.36.45.752015-06-07 → 2016-04-24 · 4 obs

● 2015-06-07 07:27:24
● 2016-04-24 22:02:34
○ 2017-01-31 03:25:00
○ 2026-08-01 13:14:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
b2learn.com	savanna.ns.cloudflare.com, piers.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.16

NS records: savanna.ns.cloudflare.com, piers.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for b2learn.com (unsigned zone)

⏱️ Timing

Total: 173ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.161.178, 104.21.15.49`
AAAA	2	`2606:4700:3033::ac43:a1b2, 2606:4700:3036::6815:f31`
NS	2	`piers.ns.cloudflare.com, savanna.ns.cloudflare.com`
MX	2	`mx1.mailchannels.net (pri: 0), mx2.mailchannels.net (pri: 0)`
TXT	1	`v=spf1 include:netblocks.dreamhost.com ~`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`piers.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

b2learn.com directs to four IP numbers, which are 104.21.15.49, 172.67.161.178, 2606:4700:3033::ac43:a1b2 and 2606:4700:3036::6815:f31.

Two other host names, along with jj071.com, queenodds.us and jingwen.me, also share IP numbers with b2learn.com.

Name Servers

b2learn.com has two authoritative name servers — piers.ns.cloudflare.com and savanna.ns.cloudflare.com.

b2learn.com shares its NS records with other domains, for example abdlpic.com, bariloche.tv, staugustinecarriage.com and two others.

At least some of b2learn.com's name servers are shared with other domains, for example centrecom.eu, wfmu.org, iptv-sport.com and two more.

These name servers tend to be used in conjunction with the name servers tricia.ns.cloudflare.com.

DNS names with 6 IP addresses:

piers.ns.cloudflare.com points to 108.162.195.16, 162.159.44.16, 172.64.35.16 and 3 other IP addresses.

savanna.ns.cloudflare.com points to 108.162.194.136, 162.159.38.136, 172.64.34.136 and 3 other IP addresses.

Mail Servers

b2learn.com is served by two mail servers, mx1.mailchannels.net and mx2.mailchannels.net.

Among the domains sharing a mail server setup with b2learn.com are mwh.net, chinatravelplanner.com, nasha.co.in and two others.

b2learn.com overlaps on mail servers with certain other domains, skovdebygdens.se among them.

mx1.mailchannels.net and mx2.mailchannels.net each point to one IP address — 54.187.177.89.

The host names mx1.mailchannels.net and mx2.mailchannels.net both resolve to 54.187.177.89 IP addresses.