`openairclass.jp`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:a3ad^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:328c^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.50.140^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.163.173^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bailey.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2629^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bailey.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c229^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bailey.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2229^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bailey.ns.cloudflare.com`
		A	108.162.194.41^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	162.159.38.41^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.64.34.41^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`vin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bf5^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1f5^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`vin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21f5^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`vin.ns.cloudflare.com`
		A	108.162.193.245^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vin.ns.cloudflare.com`
		A	172.64.33.245^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vin.ns.cloudflare.com`
		A	173.245.59.245^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`vin.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	2607:f8b0:4004:c27::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadsk-in-f26.1e100.net`
		A	2607:f8b0:4004:c27::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadsk-in-f27.1e100.net`
		A	172.253.122.26^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f26.1e100.net`
		A	172.253.139.26^{🇺🇸 Google172.253.139.0/24}
			PTR	`yuiadsk-in-f26.1e100.net`
		A	172.253.139.27^{🇺🇸 Google172.253.139.0/24}
			PTR	`yuiadsk-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
TXT	`google-site-verification=R-A3YhNW6j4B5zcwH7abnj9E6Zx57elChalh7swuJ7Y`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.50.140, 172.67.163.173
		IPv6 hints	2606:4700:3033::ac43:a3ad, 2606:4700:3036::6815:328c
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=155, name=cloudflare-ech.com
SOA	`bailey.ns.cloudflare.com`dns@cloudflare.com serial=2409900650

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1785387603

Same first word

openairclass.jp

Similar names

casinopearls.com

prensasocial.com

prensasocial.es

carlopessina.com

carlospesina.com

carolinesspa.se

iacpersonals.com

acispersonal.com

saloncaprise.ru

DNS History

17 records (7 active, 10 former)

●NSbailey.ns.cloudflare.com2026-05-25 → 2026-07-30 · 2 obs

● 2026-05-25 07:54:36
● 2026-07-30 05:28:40

●NSvin.ns.cloudflare.com2026-05-25 → 2026-07-30 · 2 obs

● 2026-05-25 07:54:36
● 2026-07-30 05:28:40

●MXsmtp.google.com2026-05-25 → 2026-07-30 · 2 obs

● 2026-05-25 07:54:36
● 2026-07-30 05:28:40

●A104.21.50.1402026-05-25 → 2026-07-30 · 30 obs

● 2026-05-25 07:54:36
○ 2026-07-14 06:15:14
● 2026-07-14 09:01:44
○ 2026-07-14 11:54:36
● 2026-07-14 13:42:22
○ 2026-07-14 18:30:14
● 2026-07-15 08:56:20
○ 2026-07-15 13:02:14
● 2026-07-15 15:45:40
○ 2026-07-15 23:41:06
● 2026-07-16 01:29:28
○ 2026-07-16 04:59:24
● 2026-07-17 07:25:58
○ 2026-07-17 09:32:18
● 2026-07-19 01:32:26
○ 2026-07-19 03:07:44
● 2026-07-19 14:12:46
○ 2026-07-19 17:37:28
● 2026-07-20 10:03:04
○ 2026-07-20 13:07:08
● 2026-07-22 14:20:54
○ 2026-07-22 17:23:26
● 2026-07-23 13:48:52
○ 2026-07-25 01:23:22
● 2026-07-28 02:18:52
○ 2026-07-28 04:19:26
● 2026-07-28 10:19:02
○ 2026-07-28 11:23:04
● 2026-07-30 03:36:04
● 2026-07-30 05:28:40

●A172.67.163.1732026-05-25 → 2026-07-30 · 30 obs

○A188.114.96.02026-07-14 → 2026-07-28 · 30 obs

○ 2026-07-08 18:47:00
● 2026-07-14 06:15:14
○ 2026-07-14 09:01:44
● 2026-07-14 11:54:36
○ 2026-07-14 13:42:22
● 2026-07-14 18:30:14
○ 2026-07-15 08:22:38
● 2026-07-15 13:02:14
○ 2026-07-15 15:45:40
● 2026-07-15 23:41:06
○ 2026-07-16 01:29:28
● 2026-07-16 04:59:24
○ 2026-07-17 07:25:58
● 2026-07-17 09:32:18
○ 2026-07-19 01:32:26
● 2026-07-19 03:07:44
○ 2026-07-19 14:12:46
● 2026-07-19 17:37:28
○ 2026-07-20 10:03:04
● 2026-07-20 13:07:08
○ 2026-07-22 14:20:54
● 2026-07-22 17:23:26
○ 2026-07-23 13:48:52
● 2026-07-25 01:23:22
○ 2026-07-28 02:18:52
● 2026-07-28 04:19:26
○ 2026-07-28 10:19:02
● 2026-07-28 11:23:04
○ 2026-07-30 03:00:54
○ 2026-07-30 05:28:40

○A188.114.96.42026-07-15 → 2026-07-30 · 6 obs

○ 2026-07-14 18:30:14
● 2026-07-15 08:22:38
○ 2026-07-15 08:56:20
● 2026-07-30 03:00:54
○ 2026-07-30 03:36:04
○ 2026-07-30 05:28:40

○A188.114.97.02026-07-14 → 2026-07-28 · 30 obs

○A188.114.97.42026-07-15 → 2026-07-30 · 6 obs

○ 2026-07-14 18:30:14
● 2026-07-15 08:22:38
○ 2026-07-15 08:56:20
● 2026-07-30 03:00:54
○ 2026-07-30 03:36:04
○ 2026-07-30 05:28:40

●A2606:4700:3033::ac43:a3ad2026-07-08 → 2026-07-30 · 31 obs

○ 2026-05-25 07:54:36
● 2026-07-08 18:47:00
○ 2026-07-14 06:15:14
● 2026-07-14 09:01:44
○ 2026-07-14 11:54:36
● 2026-07-14 13:42:22
○ 2026-07-14 18:30:14
● 2026-07-15 08:56:20
○ 2026-07-15 13:02:14
● 2026-07-15 15:45:40
○ 2026-07-15 23:41:06
● 2026-07-16 01:29:28
○ 2026-07-16 04:59:24
● 2026-07-17 07:25:58
○ 2026-07-17 09:32:18
● 2026-07-19 01:32:26
○ 2026-07-19 03:07:44
● 2026-07-19 14:12:46
○ 2026-07-19 17:37:28
● 2026-07-20 10:03:04
○ 2026-07-20 13:07:08
● 2026-07-22 14:20:54
○ 2026-07-22 17:23:26
● 2026-07-23 13:48:52
○ 2026-07-25 01:23:22
● 2026-07-28 02:18:52
○ 2026-07-28 04:19:26
● 2026-07-28 10:19:02
○ 2026-07-28 11:23:04
● 2026-07-30 03:36:04
● 2026-07-30 05:28:40

○A2606:4700:3034::6815:328c2026-05-25 → 2026-05-25 · 3 obs

● 2026-05-25 07:54:36
○ 2026-07-08 18:47:00
○ 2026-07-30 05:28:40

○A2606:4700:3035::ac43:a3ad2026-05-25 → 2026-05-25 · 3 obs

● 2026-05-25 07:54:36
○ 2026-07-08 18:47:00
○ 2026-07-30 05:28:40

●A2606:4700:3036::6815:328c2026-07-08 → 2026-07-30 · 31 obs

○A2a06:98c1:3120::2026-07-14 → 2026-07-28 · 30 obs

○ 2026-07-14 06:15:14
● 2026-07-14 08:26:56
○ 2026-07-14 09:01:44
● 2026-07-14 11:54:36
○ 2026-07-14 13:42:22
● 2026-07-14 18:30:14
○ 2026-07-15 08:56:20
● 2026-07-15 13:02:14
○ 2026-07-15 15:45:40
● 2026-07-15 23:41:06
○ 2026-07-16 01:29:28
● 2026-07-16 04:59:24
○ 2026-07-17 07:25:58
● 2026-07-17 09:32:18
○ 2026-07-19 01:32:26
● 2026-07-19 03:07:44
○ 2026-07-19 14:12:46
● 2026-07-19 17:37:28
○ 2026-07-20 10:03:04
● 2026-07-20 13:07:08
○ 2026-07-22 14:20:54
● 2026-07-22 17:23:26
○ 2026-07-23 13:48:52
● 2026-07-25 01:23:22
○ 2026-07-28 02:18:52
● 2026-07-28 04:19:26
○ 2026-07-28 10:19:02
● 2026-07-28 11:23:04
○ 2026-07-30 03:36:04
○ 2026-07-30 05:28:40

○A2a06:98c1:3120::42026-07-14 → 2026-07-14 · 4 obs

○ 2026-07-08 18:47:00
● 2026-07-14 06:15:14
○ 2026-07-14 08:26:56
○ 2026-07-30 05:28:40

○A2a06:98c1:3121::2026-07-14 → 2026-07-28 · 30 obs

○A2a06:98c1:3121::42026-07-14 → 2026-07-14 · 4 obs

○ 2026-07-08 18:47:00
● 2026-07-14 06:15:14
○ 2026-07-14 08:26:56
○ 2026-07-30 05:28:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	c.dns.jp, g.dns.jp, b.dns.jp, f.dns.jp...	-
openairclass.jp	vin.ns.cloudflare.com, bailey.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.245

NS records: vin.ns.cloudflare.com, bailey.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openairclass.jp (unsigned zone)

⏱️ Timing

Total: 2126ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.50.140, 172.67.163.173`
AAAA	2	`2606:4700:3033::ac43:a3ad, 2606:4700:3036::6815:328c`
NS	2	`bailey.ns.cloudflare.com, vin.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	1	`google-site-verification=R-A3YhNW6j4B5zc`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bailey.ns.cloudflare.com dns.cloudflare.`

Analysis

IP Addresses

openairclass.jp points to the four IP addresses 104.21.50.140, 172.67.163.173, 2606:4700:3033::ac43:a3ad and 2606:4700:3036::6815:328c.

benchmark-edu.com, himalayanlife.com.np, ultimateamusements.com plus two other host names have IP numbers in common with openairclass.jp.

Name Servers

openairclass.jp has two authoritative name servers — bailey.ns.cloudflare.com and vin.ns.cloudflare.com.

The name server configuration of openairclass.jp is shared with other domains, for instance ysxs6.com, nyue3.top, qunshus.com and two others.

At least some of openairclass.jp's name servers are shared with other domains, for example cybo.world, telaeris.net, seqinformatics.net and two more.

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

Hosts with 6 IP addresses each:

bailey.ns.cloudflare.com points to 108.162.194.41, 162.159.38.41, 172.64.34.41 and 3 other IP addresses.

vin.ns.cloudflare.com points to 108.162.193.245, 172.64.33.245, 173.245.59.245 and 3 other IP addresses.

Mail Servers

openairclass.jp uses one mail server — smtp.google.com.

The mail server setup of openairclass.jp matches that of other domains such as balerytodo.com, aandcroofing.com, dynamicdesign.info and two others.

At least some of the mail servers used by openairclass.jp are shared with other domains: corporisacademia.com, cmakfchurch.org.hk, masterdruck.ro and two others among them.

It is common to find these mail servers paired with the mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt3.aspmx.l.google.com, as well as two others.

smtp.google.com has 9 IP addresses: 172.253.122.26, 172.253.139.26, 172.253.139.27 plus 6 more.

openairclass.jp - robtex.com

openairclass.jp

jp

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`openairclass.jp`

`jp`