`rb.com`

DNSSEC	⚠️ Not signed
A	35.244.255.146^{🇺🇸 Google35.244.0.0/16}
		PTR	`146.255.244.35.bc.googleusercontent.com`
NS	`ha1.markmonitor.zone` ⭐
		A	2001:67c:1bc::5^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ha1.markmonitor.zone`
		A	192.174.68.5^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ha1.markmonitor.zone`
NS	`ha2.markmonitor.zone`
		A	2620:10a:80eb::6b^{🇨🇦 CIRA-22620:10a:80eb::/48 D-Zone Anycast Cloud 1}
			PTR	`ha2.markmonitor.zone`
		A	162.219.54.170^{🇨🇦 CIRA-2162.219.54.0/24 D-Zone Anycast Cloud1}
			PTR	`ha2.markmonitor.zone`
NS	`ha3.markmonitor.zone`
		A	2001:67c:10b8::5^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ha3.markmonitor.zone`
		A	176.97.158.5^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ha3.markmonitor.zone`
NS	`ha4.markmonitor.zone`
		A	2620:10a:80ec::6b^{🇨🇦 CIRA-32620:10a:80ec::/48 D-Zone IPv6 Anycast Cloud 2}
			PTR	`ha4.markmonitor.zone`
		A	162.219.55.170^{🇨🇦 CIRA-3162.219.55.0/24 D-Zone Anycast Cloud 2}
			PTR	`ha4.markmonitor.zone`
MX	`eu-smtp-inbound-1.mimecast.com` ⭐
		A	91.220.42.201^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.211^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.241^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.201^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.211^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.241^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
MX	`eu-smtp-inbound-2.mimecast.com` ⭐
		A	91.220.42.201^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.211^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	91.220.42.241^{🇬🇧 MIMECAST-UK91.220.42.0/24 MIMECAST-NET2}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.201^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.211^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
		A	195.130.217.241^{🇬🇧 MIMECAST-UK195.130.217.0/24}
			PTR	`eu-smtp-inbound-1.mimecast.com`
			PTR	`eu-smtp-inbound-2.mimecast.com`
TXT	`email-od.com`
TXT	`MS=ms74350714`
TXT	`hvd4v8812i3j754ovkkb3hbekc`
TXT	`jfecauvi3iebfk4ngkflbfdaq8`
TXT	`m0qdnp1nsj5u3jnhk0relsa4ju`
TXT	`uq5gj35qutain1l0vik2bj6c02`
TXT	`_7x6wbkillk9ww53g4h6ihsa04z5wevo`
TXT	`_ncndijmnyfkbbsyw49frs4656g2fwab`
TXT	`klaviyo-site-verification=XvdiyV`
TXT	`apple-domain-verification=CL4fVf4wkcqoOjfE`
TXT	`apple-domain-verification=PUjns7Vd0FkivIyk`
TXT	`SFMC-kvnVJA_p_NuoCSCup0RsM0vN6Z2nEfVe6ClvdJ5V`
TXT	`SFMC-tUxP1vWE597iZ3zw0p9sZtLmuk4UI0ot7m-QgtnW`
TXT	`adobe-sign-verification=e578a19ceeca555e74df4df3c0dad490`
TXT	`shopify-verification-code=fVx1B1dfy91iHwNLEswWZdCtQf2b4b`
TXT	`v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all`
TXT	`teamviewer-sso-verification=9dea2db663f9408d9ee59b9c54d8e148`
TXT	`workplace-domain-verification=wcaerVoO9ZkiK5hNyUzHXjrPVX7KMO`
TXT	`google-site-verification=0Q1qjwfg2RTq_IEDPELMdOlHimtf57_HuvaxU_3kiZE`
TXT	`google-site-verification=68BV81LNYuR90w6vsjkg86YvXba2A4QS5SuytfcTQhI`
TXT	`google-site-verification=874w-ilxO3Df2nWC7CZxQRHZEaD_MRvb8QNe98qhp-4`
TXT	`google-site-verification=H9p4esykOO5u1z5nCalffilE3KAAg7nYbO8sNYrO5hE`
TXT	`google-site-verification=NDczOnbeOkoDqTUCuYE-38byrh_A5rT5U6XUNvFTEIo`
TXT	`google-site-verification=mHaVLcasgPFbm08B9rdW7uvKNw8_OEGdj-TfFv6jiSk`
TXT	`google-site-verification=xBqhKybIJVpc9j2K7caF-eoYF8wQINrgDBLy3RNEXqE`
TXT	`google-site-verification=ylH_tjEb5LalMX-Tyix2Wr4MMe6QWCvqAOaMf2m0i-8`
TXT	`dnL0QvckscDsgodnUxtF3qAE5H+3RKlbZKZFbJk3lVQgOIBfBhLP8rU3T8kDRtisBIL6nUK3OklBo...`
TXT	`adobe-idp-site-verification=2260283cb5deb19bbc9b6357e78ff67cc5071f813d907bfd7...`
TXT	`atlassian-domain-verification=c3lT0nNM0Br2rRNjau5CJKubjDZPGFbB6oOl1HsKGeSIiTY...`
SOA	`ha1.markmonitor.zone`hostmaster@markmonitor.com 2026-04-30 #4

`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=1778340216

rank #64256 globally
rank #28277 in the tld
WOT: UNKNOWN (77/100)
📈 Tranco rank: #151,312

Subdomains

registration.rb.com

ldcsa.rb.com

sip.rb.com

webmail.rb.com

lyncdiscover.rb.com

e.rb.com

on.rb.com

www.rb.com

digital.rb.com

Same first word

rb.co.za

rb.io

rb.bz

rb.ca

rb.ua

rb.nic.in

rb.ag

rb.art.br

rb.com.br

rb.me

rb.church

rb.edgekey.net

rb.cz

rb.cl

rb.ac.th

rb.fyi

rb.org

rb.style

rb.vg

rb.co.nz

rb.life

rb.si

rb.gov.il

rb.com.au

rb.vip

rb.to

rb.realty

rb.nl

rb.systems

rb.cn

rb.su

rb.edu.az

rb.jobs

rb.wtf

rb.lt

rb.tj

rb.net.ru

rb.school

rb.com.hk

rb.ru

rb.kitchen

rb.am

rb.com.cn

rb.direct

rb.cc

rb.tel

rb.s3.amazonaws.com

rb.chat

rb.education

rb.pl

rb.photography

rb.construction

rb.sk

rb.se

rb.gov.br

rb.cm

rb.casino

rb.dev

rb.gy

rb.energy

rb.dk

rb.no

rb.lv

rb.coffee

rb.co

rb.com

rb.is

rb.hk

rb.info

rb.university

rb.biz

rb.net

rb.ly

rb.com.ua

rb.gd

rb.world

rb.be

rb.tv

rb.gs

rb.gov.tw

rb.org.br

rb.net.au

rb.lc

rb.kiev.ua

rb.gl

Similar names

br.ht

br.com.es

br.hu

br.ac

br.games

br.lublin.pl

br.s3-website-us-east-1.amazonaws.com

br.at

br.s3-website.sa-east-1.amazonaws.com

br.uy

br.im

br.hr

br.kz

br.kinghost.net

br.exchange

br.pl

br.lt

br.country

br.s3-website-sa-east-1.amazonaws.com

br.de

br.se

br.s3-website-us-west-1.amazonaws.com

br.df.gov.br

br.uk

br.life

br.be

br

br.global.prod.fastly.net

br.chat

br.cz

br.edu.pl

br.s3-website-us-west-2.amazonaws.com

br.com.ph

br.s3.amazonaws.com

br.dk

br.s3.sa-east-1.amazonaws.com

br.co.kr

br.gs

br.pt

br.je

br.ae

br.com

br.gg

br.ma

br.if.ua

br.no

br.io

br.coffee

br.abbott

br.rt.ht

br.s3-us-west-2.amazonaws.com

DNS History

22 records (7 active, 15 former)

○NSa4.nstld.com2015-08-15 → 2017-03-09 · 4 obs

● 2015-08-15 23:55:58
● 2017-03-09 09:31:22
○ 2017-04-11 19:58:12
○ 2026-05-09 15:43:50

○NSdns1.cscdns.net2017-04-11 → 2020-04-16 · 5 obs

○ 2017-03-09 09:31:22
● 2017-04-11 19:58:12
● 2020-04-16 07:26:54
○ 2026-02-15 08:34:08
○ 2026-05-09 15:43:50

○NSdns2.cscdns.net2017-04-11 → 2020-04-16 · 5 obs

○ 2017-03-09 09:31:22
● 2017-04-11 19:58:12
● 2020-04-16 07:26:54
○ 2026-02-15 08:34:08
○ 2026-05-09 15:43:50

○NSf4.nstld.com2015-08-15 → 2017-03-09 · 4 obs

● 2015-08-15 23:55:58
● 2017-03-09 09:31:22
○ 2017-04-11 19:58:12
○ 2026-05-09 15:43:50

○NSg4.nstld.com2015-08-15 → 2017-03-09 · 4 obs

● 2015-08-15 23:55:58
● 2017-03-09 09:31:22
○ 2017-04-11 19:58:12
○ 2026-05-09 15:43:50

○NSh4.nstld.com2015-08-15 → 2017-03-09 · 4 obs

● 2015-08-15 23:55:58
● 2017-03-09 09:31:22
○ 2017-04-11 19:58:12
○ 2026-05-09 15:43:50

●NSha1.markmonitor.zone2026-02-15 → 2026-05-09 · 3 obs

○ 2020-04-16 07:26:54
● 2026-02-15 08:34:08
● 2026-05-09 15:43:50

●NSha2.markmonitor.zone2026-02-15 → 2026-05-09 · 3 obs

○ 2020-04-16 07:26:54
● 2026-02-15 08:34:08
● 2026-05-09 15:43:50

●NSha3.markmonitor.zone2026-02-15 → 2026-05-09 · 3 obs

○ 2020-04-16 07:26:54
● 2026-02-15 08:34:08
● 2026-05-09 15:43:50

●NSha4.markmonitor.zone2026-02-15 → 2026-05-09 · 3 obs

○ 2020-04-16 07:26:54
● 2026-02-15 08:34:08
● 2026-05-09 15:43:50

○NSj4.nstld.com2015-08-15 → 2017-03-09 · 4 obs

● 2015-08-15 23:55:58
● 2017-03-09 09:31:22
○ 2017-04-11 19:58:12
○ 2026-05-09 15:43:50

○NSk4.nstld.com2015-08-15 → 2017-03-09 · 4 obs

● 2015-08-15 23:55:58
● 2017-03-09 09:31:22
○ 2017-04-11 19:58:12
○ 2026-05-09 15:43:50

○NSl4.nstld.com2015-08-15 → 2017-03-09 · 4 obs

● 2015-08-15 23:55:58
● 2017-03-09 09:31:22
○ 2017-04-11 19:58:12
○ 2026-05-09 15:43:50

○MXcluster8.eu.messagelabs.com2015-08-15 → 2020-04-16 · 4 obs

● 2015-08-15 23:55:58
● 2020-04-16 07:26:54
○ 2026-02-15 08:34:08
○ 2026-05-09 15:43:50

○MXcluster8a.eu.messagelabs.com2015-08-15 → 2020-04-16 · 4 obs

● 2015-08-15 23:55:58
● 2020-04-16 07:26:54
○ 2026-02-15 08:34:08
○ 2026-05-09 15:43:50

●MXeu-smtp-inbound-1.mimecast.com2026-02-15 → 2026-05-09 · 3 obs

○ 2020-04-16 07:26:54
● 2026-02-15 08:34:08
● 2026-05-09 15:43:50

●MXeu-smtp-inbound-2.mimecast.com2026-02-15 → 2026-05-09 · 3 obs

○ 2020-04-16 07:26:54
● 2026-02-15 08:34:08
● 2026-05-09 15:43:50

○A216.87.148.1142016-12-02 → 2017-03-09 · 5 obs

○ 2016-11-23 20:34:22
● 2016-12-02 18:03:56
● 2017-03-09 09:31:22
○ 2017-04-11 19:58:12
○ 2026-05-09 15:43:50

●A35.244.255.1462026-02-15 → 2026-05-09 · 3 obs

○ 2020-04-16 07:26:54
● 2026-02-15 08:34:08
● 2026-05-09 15:43:50

○A46.32.228.562015-08-15 → 2015-08-15 · 3 obs

● 2015-08-15 23:55:58
○ 2015-09-11 07:38:56
○ 2026-05-09 15:43:50

○A52.50.117.612017-04-11 → 2020-04-16 · 5 obs

○ 2017-03-09 09:31:22
● 2017-04-11 19:58:12
● 2020-04-16 07:26:54
○ 2026-02-15 08:34:08
○ 2026-05-09 15:43:50

○A69.58.186.1142015-09-11 → 2016-11-23 · 5 obs

○ 2015-08-15 23:55:58
● 2015-09-11 07:38:56
● 2016-11-23 20:34:22
○ 2016-12-02 18:03:56
○ 2026-05-09 15:43:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, c.gtld-servers.net, i.gtld-servers.net, k.gtld-servers.net...	-
rb.com	ha4.markmonitor.zone, ha2.markmonitor.zone, ha1.markmonitor.zone, ha3.markmonitor.zone	-

✅ Authoritative Response

Server:162.219.55.170

NS records: ha4.markmonitor.zone, ha2.markmonitor.zone, ha1.markmonitor.zone, ha3.markmonitor.zone

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rb.com (unsigned zone)

⏱️ Timing

Total: 1607ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.244.255.146`
NS	4	`ha1.markmonitor.zone, ha2.markmonitor.zone...`
MX	2	`eu-smtp-inbound-1.mimecast.com (pri: 10), eu-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	29	`email-od.com, MS=ms74350714...`
SOA	1	`ha1.markmonitor.zone hostmaster.markmoni`

Analysis

Hierarchy

rb.com is a parent of registration.rb.com, ldcsa.rb.com, sip.rb.com, webmail.rb.com and lyncdiscover.rb.com, plus a few other host names.

IP Addresses

rb.com resolves to one IP number: 35.244.255.146.

Other host names, for instance rbprofessional.com, airwick.co.nz, airbornehealth.com, rbcloud.io and megared.com share IP numbers with rb.com.

Name Servers

rb.com delegates to four name servers: ha1.markmonitor.zone, ha2.markmonitor.zone, ha3.markmonitor.zone and ha4.markmonitor.zone.

rb.com at least partially shares name servers with other domains, including buildyourfuture.com.ar, daf-frankfurt.com, sandoz.com, lithiaspokane.com and panasoniconline.cz.

these name servers are commonly used alongside ns1.markmonitor.com, ns3.markmonitor.com, ns2.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

Host names with two IP numbers: ha1.markmonitor.zone points to 2001:67c:1bc::5 and 192.174.68.5; ha2.markmonitor.zone points to 2620:10a:80eb::6b and 162.219.54.170; ha3.markmonitor.zone points to 2001:67c:10b8::5 and 176.97.158.5; ha4.markmonitor.zone points to 2620:10a:80ec::6b and 162.219.55.170.

Mail Servers

rb.com is served by two mail servers eu-smtp-inbound-1.mimecast.com and eu-smtp-inbound-2.mimecast.com.

rb.com shares the same mail server setup as other domains, for instance marlux.co.uk, premierinsuranceconsultants.co.uk, adidas.com.sa, johntainton.co.uk and lindselltrain.com.

rb.com shares at least some mail servers with other domains, for example bakels.co.uk, amh-berlin.de, alfmeier.de, vanluin.nl and zavvi.se.