circulus.com - dns.ninja

`circulus.com`

DNSSEC	⚠️ Not signed
A	2600:1408:c400:383::16cb^{🇺🇸 AKAMAI-ASN12600:1408:c400::/48 Akamai Technologies}
		PTR	`g2600-1408-c400-0383-0000-0000-0000-16cb.deploy.static.akamaitechnologies.com`
A	2600:1408:c400:388::16cb^{🇺🇸 AKAMAI-ASN12600:1408:c400::/48 Akamai Technologies}
A	23.79.23.36^{🇺🇸 Akamai23.79.16.0/20 Technologies}
NS	`a1-188.akam.net` ⭐
		A	2600:1401:2::bc^{🇺🇸 Akamai2600:1401:2::/48 Technologies}
			PTR	`a1-188.akam.net`
			PTR	`ns1-188.akam.net`
		A	193.108.91.188^{🇳🇱 Akamai193.108.91.0/24 Technologies}
			PTR	`a1-188.akam.net`
			PTR	`ns1-188.akam.net`
NS	`a11-67.akam.net`
		A	2600:1480:1::43^{🇺🇸 Akamai2600:1480:1::/48 Technologies}
			PTR	`a11-67.akam.net`
			PTR	`ns4-67.akam.net`
		A	84.53.139.67^{🇳🇱 Akamai84.53.139.0/24 Technologies}
			PTR	`a11-67.akam.net`
			PTR	`ns4-67.akam.net`
NS	`a14-65.akam.net`
		A	2600:1480:1800::41^{🇺🇸 Akamai2600:1480:1800::/48 Technologies}
			PTR	`a14-65.akam.net`
		A	184.26.161.65^{🇺🇸 Akamai184.26.161.0/24 Technologies}
			PTR	`a14-65.akam.net`
NS	`a26-65.akam.net`
		A	2600:1480:b800::41^{🇺🇸 Akamai2600:1480:b800::/48 Technologies}
			PTR	`a26-65.akam.net`
		A	23.74.25.65^{🇺🇸 Akamai23.74.25.0/24 Technologies}
			PTR	`a26-65.akam.net`
NS	`a3-67.akam.net`
		A	2600:1408:1c::43^{🇺🇸 Akamai2600:1408:1c::/48 Technologies}
			PTR	`a3-67.akam.net`
			PTR	`ns7-67.akam.net`
		A	96.7.49.67^{🇺🇸 Akamai96.7.49.0/24 Technologies}
			PTR	`a3-67.akam.net`
			PTR	`ns7-67.akam.net`
NS	`a6-66.akam.net`
		A	2600:1401:1::42^{🇺🇸 Akamai2600:1401:1::/48 Technologies}
			PTR	`a6-66.akam.net`
		A	23.211.133.66^{🇺🇸 Akamai23.211.133.0/24 Technologies}
			PTR	`a6-66.akam.net`
MX	`circulus-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c92c::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm2pr04cu00102.inbound.protection.outlook.com`
		A	2a01:111:f403:f802::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sj0pr03cu01403.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr02cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:f90b::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn6pr04cu00100.inbound.protection.outlook.com`
		A	52.101.10.2^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr03cu00202.inbound.protection.outlook.com`
		A	52.101.10.18^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00302.inbound.protection.outlook.com`
		A	52.101.41.0^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-byapr05cu00400.inbound.protection.outlook.com`
		A	52.101.194.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch4pr04cu00104.inbound.protection.outlook.com`
TXT	`_j36ngfbucwsn1gmno48l7kt1reeqth7`
TXT	`MS=ms52267192`
TXT	`v=spf1 ip4:168.245.21.81 include:sendgrid.net include:spf.protection.outlook....`
TXT	`_3tadqrhgipky3fbz3kflh9qdbv55hgd`
SOA	`a1-188.akam.net`hostmaster@circulus.com 2025-09-18 #12

`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=1783181606

Previously MX for

circulus.com

Same first word

circulus.online

circulus.herokuapp.com

circulus.net

circulus.com

circulus.systems

circulus.co.uk

circulus.ag

circulus.co

circulus.ca

circulus.sk

circulus.nl

circulus.ru

circulus.io

circulus.com.br

circulus.life

circulus.com.au

DNS History

36 records (10 active, 26 former)

●NSa1-188.akam.net2026-03-02 → 2026-07-04 · 3 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
● 2026-07-04 16:15:54

●NSa11-67.akam.net2026-03-02 → 2026-07-04 · 3 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
● 2026-07-04 16:15:54

●NSa14-65.akam.net2026-03-02 → 2026-07-04 · 3 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
● 2026-07-04 16:15:54

●NSa26-65.akam.net2026-03-02 → 2026-07-04 · 3 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
● 2026-07-04 16:15:54

●NSa3-67.akam.net2026-03-02 → 2026-07-04 · 3 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
● 2026-07-04 16:15:54

●NSa6-66.akam.net2026-03-02 → 2026-07-04 · 3 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
● 2026-07-04 16:15:54

○NSns1.auserver.com.au2015-06-24 → 2017-01-30 · 5 obs

○ 2007-10-22 19:18:56
● 2015-06-24 15:13:22
● 2017-01-30 18:49:34
○ 2019-04-05 05:09:58
○ 2026-07-04 16:15:54

○NSns15.domaincontrol.com2019-04-05 → 2019-04-05 · 4 obs

○ 2017-01-30 18:49:34
● 2019-04-05 05:09:58
○ 2026-03-02 16:04:02
○ 2026-07-04 16:15:54

○NSns16.domaincontrol.com2019-04-05 → 2019-04-05 · 4 obs

○ 2017-01-30 18:49:34
● 2019-04-05 05:09:58
○ 2026-03-02 16:04:02
○ 2026-07-04 16:15:54

○NSns2.auserver.com.au2015-06-24 → 2017-01-30 · 5 obs

○ 2007-10-22 19:18:56
● 2015-06-24 15:13:22
● 2017-01-30 18:49:34
○ 2019-04-05 05:09:58
○ 2026-07-04 16:15:54

○NSns25.schlund.de2007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 19:18:56
○ 2015-06-24 15:13:22
○ 2026-07-04 16:15:54

○NSns26.schlund.de2007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 19:18:56
○ 2015-06-24 15:13:22
○ 2026-07-04 16:15:54

●MXcirculus-com.mail.protection.outlook.com2026-03-02 → 2026-07-04 · 3 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
● 2026-07-04 16:15:54

○MXcirculus.com2015-06-24 → 2017-01-30 · 5 obs

○ 2007-10-22 19:18:56
● 2015-06-24 15:13:22
● 2017-01-30 18:49:34
○ 2019-04-05 05:09:58
○ 2026-07-04 16:15:54

○MXmx00.schlund.de2007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 19:18:56
○ 2015-06-24 15:13:22
○ 2026-07-04 16:15:54

○MXmx01.schlund.de2007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 19:18:56
○ 2015-06-24 15:13:22
○ 2026-07-04 16:15:54

○A101.0.116.302015-06-24 → 2017-01-30 · 5 obs

○ 2007-10-22 19:18:56
● 2015-06-24 15:13:22
● 2017-01-30 18:49:34
○ 2019-04-05 05:09:58
○ 2026-07-04 16:15:54

○A151.101.130.1592026-03-02 → 2026-07-04 · 2 obs

○ 2026-03-02 16:04:02
○ 2026-07-04 16:15:54

○A184.168.131.2412019-04-05 → 2019-04-05 · 4 obs

○ 2017-01-30 18:49:34
● 2019-04-05 05:09:58
○ 2026-03-02 16:04:02
○ 2026-07-04 16:15:54

○A184.87.33.1612026-04-29 → 2026-05-06 · 5 obs

○ 2026-04-25 04:51:58
● 2026-04-29 04:30:38
● 2026-05-06 05:23:44
○ 2026-05-27 17:13:30
○ 2026-07-04 16:15:54

○A23.201.244.572026-04-03 → 2026-04-03 · 4 obs

○ 2026-03-02 16:04:02
● 2026-04-03 01:07:08
○ 2026-04-13 10:53:40
○ 2026-07-04 16:15:54

○A23.204.210.2352026-04-13 → 2026-04-25 · 5 obs

○ 2026-04-03 01:07:08
● 2026-04-13 10:53:40
● 2026-04-25 04:51:58
○ 2026-04-29 04:30:38
○ 2026-07-04 16:15:54

○A23.6.184.1102026-03-02 → 2026-03-02 · 4 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
○ 2026-04-03 01:07:08
○ 2026-07-04 16:15:54

○A23.79.187.742026-05-27 → 2026-05-27 · 4 obs

○ 2026-05-06 05:23:44
● 2026-05-27 17:13:30
○ 2026-06-17 11:08:38
○ 2026-07-04 16:15:54

●A23.79.23.362026-06-17 → 2026-07-04 · 3 obs

○ 2026-05-27 17:13:30
● 2026-06-17 11:08:38
● 2026-07-04 16:15:54

○A2600:1402:1400:d81::16cb2026-03-02 → 2026-07-02 · 11 obs

○ 2019-04-05 05:09:58
● 2026-03-02 16:04:02
○ 2026-04-03 01:07:08
● 2026-04-13 10:53:40
○ 2026-04-25 04:51:58
○ 2026-05-06 05:23:44
● 2026-05-27 17:13:30
○ 2026-06-17 11:08:38
● 2026-07-02 12:13:34
○ 2026-07-04 16:15:52
○ 2026-07-04 16:15:54

○A2600:1402:1400:d87::16cb2026-03-02 → 2026-07-02 · 11 obs

○A2600:1404:6400:198a::16cb2026-06-17 → 2026-06-17 · 4 obs

○ 2026-05-27 17:13:30
● 2026-06-17 11:08:38
○ 2026-07-02 12:13:34
○ 2026-07-04 16:15:54

○A2600:1404:6400:198c::16cb2026-06-17 → 2026-06-17 · 4 obs

○ 2026-05-27 17:13:30
● 2026-06-17 11:08:38
○ 2026-07-02 12:13:34
○ 2026-07-04 16:15:54

●A2600:1408:c400:383::16cb2026-07-04 → 2026-07-04 · 3 obs

○ 2026-07-02 12:13:34
● 2026-07-04 16:15:52
● 2026-07-04 16:15:54

●A2600:1408:c400:388::16cb2026-07-04 → 2026-07-04 · 3 obs

○ 2026-07-02 12:13:34
● 2026-07-04 16:15:52
● 2026-07-04 16:15:54

○A2600:1408:ec00:28a::16cb2026-04-25 → 2026-05-06 · 5 obs

○ 2026-04-13 10:53:40
● 2026-04-25 04:51:58
● 2026-05-06 05:23:44
○ 2026-05-27 17:13:30
○ 2026-07-04 16:15:54

○A2600:1408:ec00:291::16cb2026-04-25 → 2026-05-06 · 5 obs

○ 2026-04-13 10:53:40
● 2026-04-25 04:51:58
● 2026-05-06 05:23:44
○ 2026-05-27 17:13:30
○ 2026-07-04 16:15:54

○A2a02:26f0:ab00:4a0::16cb2026-04-03 → 2026-04-03 · 4 obs

○ 2026-03-02 16:04:02
● 2026-04-03 01:07:08
○ 2026-04-13 10:53:40
○ 2026-07-04 16:15:54

○A2a02:26f0:ab00:4a9::16cb2026-04-03 → 2026-04-03 · 4 obs

○ 2026-03-02 16:04:02
● 2026-04-03 01:07:08
○ 2026-04-13 10:53:40
○ 2026-07-04 16:15:54

○A82.165.126.1942007-10-22 → 2007-10-22 · 3 obs

● 2007-10-22 19:18:56
○ 2015-06-24 15:13:22
○ 2026-07-04 16:15:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
circulus.com	a3-67.akam.net, a11-67.akam.net, a26-65.akam.net, a6-66.akam.net...	-

✅ Authoritative Response

Server:96.7.49.67

NS records: a3-67.akam.net, a11-67.akam.net, a26-65.akam.net, a6-66.akam.net, a14-65.akam.net, a1-188.akam.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for circulus.com (unsigned zone)

⏱️ Timing

Total: 948ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`184.87.33.161`
AAAA	2	`2600:1402:1400:d81::16cb, 2600:1402:1400:d87::16cb`
NS	6	`a3-67.akam.net, a6-66.akam.net...`
MX	1	`circulus-com.mail.protection.outlook.com`
TXT	4	`MS=ms52267192, _j36ngfbucwsn1gmno48l7kt1reeqth7...`
SOA	1	`a1-188.akam.net hostmaster.circulus.com`

Analysis

IP Addresses

The hostname circulus.com resolves to three IP addresses: 23.79.23.36, 2600:1408:c400:383::16cb and 2600:1408:c400:388::16cb.

Name Servers

DNS for circulus.com is handled by 6 name servers: a1-188.akam.net, a11-67.akam.net, a14-65.akam.net and 3 others.

circulus.com partially shares its NS delegation with several other domains, including mobil.com.ru, 0.248.194.in-addr.arpa, 201.74.109.in-addr.arpa and two others.

In DNS configurations, these name servers often share authority with a18-64.akam.net, a3-67.akam.net, a6-66.akam.net and 7 other name servers.

Hosts with two IP numbers each:

a1-188.akam.net has two IP addresses: 193.108.91.188 and 2600:1401:2::bc.

a11-67.akam.net has two IP addresses: 84.53.139.67 and 2600:1480:1::43.

a14-65.akam.net has two IP addresses: 184.26.161.65 and 2600:1480:1800::41.

a26-65.akam.net has two IP addresses: 23.74.25.65 and 2600:1480:b800::41.

a3-67.akam.net has two IP addresses: 96.7.49.67 and 2600:1408:1c::43.

a6-66.akam.net has two IP addresses: 23.211.133.66 and 2600:1401:1::42.

Mail Servers

circulus.com routes its mail through a single mail server, circulus-com.mail.protection.outlook.com.

circulus-com.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.10.2, 52.101.10.18 and 52.101.41.0, along with 5 other.