ref-bb.com - dns.ninja

`ref-bb.com`

DNSSEC	⚠️ Not signed
A	49.212.235.24^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www3314.sakura.ne.jp`
NS	`01.dnsv.jp` ⭐
		A	2400:8500:3300::53^{🇯🇵 GMO-DNS2400:8500:3300::/48 GMO Internet,inc.}
			PTR	`01.dnsv.jp`
		A	157.7.32.53^{🇯🇵 GMO-DNS157.7.32.0/24 GMO Internet,inc. Network-Team.}
			PTR	`01.dnsv.jp`
NS	`02.dnsv.jp`
		A	157.7.33.53^{🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team.}
			PTR	`02.dnsv.jp`
NS	`03.dnsv.jp`
		A	2400:8500:3000::53^{🇯🇵 GMO-DNS2400:8500:3000::/48 GMO Internet,inc.}
			PTR	`03.dnsv.jp`
		A	157.7.34.53^{🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team.}
			PTR	`03.dnsv.jp`
NS	`04.dnsv.jp`
		A	2400:8500:3fff::53^{🇯🇵 GMO-DNS2400:8500:3fff::/48 GMO Internet,inc.}
			PTR	`04.dnsv.jp`
		A	157.7.35.53^{🇯🇵 GMO-DNS157.7.35.0/24 GMO Internet,inc. Network-Team.}
			PTR	`04.dnsv.jp`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	173.194.45.27^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f27.1e100.net`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c17::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f26.1e100.net`
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	2607:f8b0:4004:c19::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f26.1e100.net`
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
		A	142.251.16.27^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f27.1e100.net`
		A	142.251.111.26^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f26.1e100.net`
		A	142.251.111.27^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f27.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		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	`aspmx3.googlemail.com`⁽¹⁰⁾
		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`
TXT	`google-site-verification=NyySP3Zb-LDvE-hFqDkxNeLS25w_kPxEoVFfuOZcFLA`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`01.dnsv.jp`hostmaster@dnsv.jp serial=1691303010

`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=1785768097

Subdomains

www.ref-bb.com

Same first word

ref-bb.ch

ref-bb.com

Similar names

bb-ref.com

bb-ref.net

bb-ref.org

rb-bef.de

DNS History

15 records (11 active, 4 former)

●NS01.dnsv.jp2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

●NS02.dnsv.jp2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

●NS03.dnsv.jp2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

●NS04.dnsv.jp2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

○NSuns01.lolipop.jp2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 21:50:22
○ 2026-03-15 13:17:58
○ 2026-08-03 15:01:40

○NSuns02.lolipop.jp2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 21:50:22
○ 2026-03-15 13:17:58
○ 2026-08-03 15:01:40

●MXalt1.aspmx.l.google.com2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

●MXalt2.aspmx.l.google.com2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

●MXaspmx.l.google.com2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

●MXaspmx2.googlemail.com2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

●MXaspmx3.googlemail.com2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

○MXmx01.lolipop.jp2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 21:50:22
○ 2026-03-15 13:17:58
○ 2026-08-03 15:01:40

●MXsmtp.google.com2026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

○A157.7.107.572018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 21:50:22
○ 2026-03-15 13:17:58
○ 2026-08-03 15:01:40

●A49.212.235.242026-03-15 → 2026-08-03 · 3 obs

○ 2018-05-13 21:50:22
● 2026-03-15 13:17:58
● 2026-08-03 15:01:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, c.gtld-servers.net, l.gtld-servers.net, i.gtld-servers.net...	-
ref-bb.com	01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp	-

✅ Authoritative Response

Server:157.7.35.53

NS records: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp, 04.dnsv.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ref-bb.com (unsigned zone)

⏱️ Timing

Total: 1148ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`49.212.235.24`
NS	4	`01.dnsv.jp, 02.dnsv.jp...`
MX	6	`alt1.aspmx.l.google.com (pri: 5), alt2.aspmx.l.google.com (pri: 5)...`
TXT	2	`google-site-verification=NyySP3Zb-LDvE-h, v=spf1 include:_spf.google.com ~all`
SOA	1	`01.dnsv.jp hostmaster.dnsv.jp`

Analysis

Hierarchy

ref-bb.com is the parent zone for www.ref-bb.com.

IP Addresses

ref-bb.com resolves to one IP address: 49.212.235.24.

www3314.sakura.ne.jp, jwwfaq.undo.jp, parryarc.jp and two other host names share IP numbers with ref-bb.com.

Name Servers

The authoritative name servers for ref-bb.com are 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.

ref-bb.com partially shares its NS delegation with several other domains, including map-kensetu-bukka.jp, snext-final.com, customize4you.com and two others.

Hostnames that resolve to two IP addresses:

01.dnsv.jp maps to two IP addresses — 157.7.32.53 and 2400:8500:3300::53.

03.dnsv.jp maps to two IP addresses — 157.7.34.53 and 2400:8500:3000::53.

04.dnsv.jp maps to two IP addresses — 157.7.35.53 and 2400:8500:3fff::53.

Hosts with just one IP address:

02.dnsv.jp points to the IP address 157.7.33.53.

Mail Servers

The MX records for ref-bb.com point to 6 mail servers — smtp.google.com, aspmx2.googlemail.com, aspmx3.googlemail.com and 3 other.

ref-bb.com has at least partial mail server overlap with other domains such as krafttech.ai, makrovit.com, lasauge.fr and two more.

These mail servers commonly co-occur with mail servers aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com and 4 others.

Hostnames that resolve to 9 IP addresses:

smtp.google.com carries IP addresses 142.251.16.26, 142.251.16.27 and 142.251.111.26, with 6 other addresses beyond those.

Hostnames that resolve to two IP addresses:

aspmx2.googlemail.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1a.

aspmx3.googlemail.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com maps to two IP addresses — 173.194.45.27 and 2607:f8b0:4004:c23::1a.

alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1b.