qa.circleback.com - dns.ninja

`qa.circleback.com`

DNSSEC	⚠️ Not signed
NS	`ns-1896.awsdns-45.co.uk` ⭐
		A	2600:9000:5307:6800::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1896.awsdns-45.co.uk`
		A	205.251.199.104^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1896.awsdns-45.co.uk`
NS	`ns-1435.awsdns-51.org`
		A	2600:9000:5305:9b00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1435.awsdns-51.org`
		A	205.251.197.155^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1435.awsdns-51.org`
NS	`ns-38.awsdns-04.com`
		A	2600:9000:5300:2600::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-38.awsdns-04.com`
		A	205.251.192.38^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-38.awsdns-04.com`
NS	`ns-688.awsdns-22.net`
		A	2600:9000:5302:b000::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-688.awsdns-22.net`
		A	205.251.194.176^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-688.awsdns-22.net`
MX	`mail.qa.circleback.com` ⭐
		A	52.0.105.248^{🇺🇸 Amazon52.0.0.0/15 EC2 IAD prefix}
			PTR	`ec2-52-0-105-248.compute-1.amazonaws.com`
SOA	`ns-1896.awsdns-45.co.uk`awsdns-hostmaster@amazon.com serial=1

`circleback.com`

	DNSSEC	⚠️ Not signed
	A	141.193.213.10^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
	A	141.193.213.11^{🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US}
	NS	`ns-850.awsdns-42.net` ⭐
	NS	`ns-1531.awsdns-63.org`
	NS	`ns-1857.awsdns-40.co.uk`
	NS	`ns-61.awsdns-07.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`aspmx2.googlemail.com`⁽¹⁰⁾
	MX	`aspmx3.googlemail.com`⁽¹⁰⁾
	TXT	`google-site-verification=4bT0HgEbsbjtgiePpkC9ZWaeQRfx7XU_UShL7JahFqY`
	TXT	`google-site-verification=NcL3kH17YJk51ZVI4F7nixNxJYjY9_FO4De90iMsFzo`
	TXT	`google-site-verification=VY-V-i_2xnl0R0hLCiP_3dehBfVzVzmq6p6hWSF8Bng`
	TXT	`google-site-verification=luW33Ooukrp8ANGB638NBesxGOclNl11Z7RtPUC34mA`
	TXT	`google-site-verification=mNpxB_JxI2UGf4l2gcXlRyJ6clow6b3HX1qJZu27ywg`
	TXT	`google-site-verification=r90W1jwLbnjY_1VfbbvpA2kN4khK4nyQ5xTwkWvs0No`
	TXT	`v=spf1 include:_spf.google.com include:mailgun.org include:mktomail.com inclu...`
	TXT	`v=verifydomain MS=8327766`
	SOA	`ns-850.awsdns-42.net`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (77/100)
WOT: SAFE (100/100)
📈 Tranco rank: #728,111

Subdomains

mail.qa.circleback.com

Same first word

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Similar names

aq.amsterdam

aq.net.uk

aq.net

aq.la

aq

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aq.hu

aq.sa

aq.lt

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aq.edu.ph

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aq.fyi

aq.vg

aq.cx

aq.su

aq.aco

aq.ru

aq.org

aq.pl

aq.com

aq.si

aq.co.kr

aq.cn

aq.cpa

aq.co

aq.dk

aq.nu

aq.ac.at

aq.md

aq.org.uk

aq.com.vn

aq.dev

aq.ws

DNS History

14 records (5 active, 9 former)

●NSns-1435.awsdns-51.org2015-08-14 → 2026-07-24 · 2 obs

● 2015-08-14 19:55:34
● 2026-07-24 17:26:38

●NSns-1896.awsdns-45.co.uk2015-08-14 → 2026-07-24 · 2 obs

● 2015-08-14 19:55:34
● 2026-07-24 17:26:38

●NSns-38.awsdns-04.com2015-08-14 → 2026-07-24 · 2 obs

● 2015-08-14 19:55:34
● 2026-07-24 17:26:38

●NSns-688.awsdns-22.net2015-08-14 → 2026-07-24 · 2 obs

● 2015-08-14 19:55:34
● 2026-07-24 17:26:38

●MXmail.qa.circleback.com2015-08-14 → 2026-07-24 · 2 obs

● 2015-08-14 19:55:34
● 2026-07-24 17:26:38

○A107.21.226.492015-08-14 → 2015-08-14 · 3 obs

● 2015-08-14 19:55:34
○ 2017-07-04 02:39:24
○ 2026-07-24 17:26:38

○A184.73.254.1632015-08-14 → 2015-08-14 · 3 obs

● 2015-08-14 19:55:34
○ 2015-11-09 16:40:18
○ 2026-07-24 17:26:38

○A52.21.69.1052016-04-12 → 2016-04-24 · 5 obs

○ 2016-01-17 17:13:10
● 2016-04-12 06:45:12
● 2016-04-24 14:56:18
○ 2016-09-08 17:17:12
○ 2026-07-24 17:26:38

○A52.3.130.822015-11-09 → 2016-10-17 · 9 obs

○ 2015-08-14 19:55:34
● 2015-11-09 16:40:18
● 2016-01-17 17:13:10
○ 2016-04-12 06:45:12
○ 2016-04-24 14:56:18
● 2016-09-08 17:17:12
● 2016-10-17 10:47:42
○ 2017-01-08 05:11:52
○ 2026-07-24 17:26:38

○A52.54.112.1802017-01-08 → 2017-01-08 · 4 obs

○ 2016-10-17 10:47:42
● 2017-01-08 05:11:52
○ 2017-07-04 02:39:24
○ 2026-07-24 17:26:38

○A52.54.152.442017-08-05 → 2026-02-15 · 5 obs

○ 2017-07-29 20:12:22
● 2017-08-05 11:54:48
● 2026-02-15 16:22:52
○ 2026-03-26 09:00:40
○ 2026-07-24 17:26:38

○A52.72.165.02016-04-12 → 2016-04-24 · 5 obs

○ 2016-01-17 17:13:10
● 2016-04-12 06:45:12
● 2016-04-24 14:56:18
○ 2016-09-08 17:17:12
○ 2026-07-24 17:26:38

○A54.209.12.2292017-07-04 → 2026-02-15 · 5 obs

○ 2017-01-08 05:11:52
● 2017-07-04 02:39:24
● 2026-02-15 16:22:52
○ 2026-03-26 09:00:40
○ 2026-07-24 17:26:38

○A54.81.167.392017-01-08 → 2017-07-29 · 5 obs

○ 2016-10-17 10:47:42
● 2017-01-08 05:11:52
● 2017-07-29 20:12:22
○ 2017-08-05 11:54:48
○ 2026-07-24 17:26:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
circleback.com	ns-61.awsdns-07.com, ns-850.awsdns-42.net, ns-1857.awsdns-40.co.uk, ns-1531.awsdns-63.org	2 records
qa.circleback.com	ns-1435.awsdns-51.org, ns-1896.awsdns-45.co.uk, ns-38.awsdns-04.com, ns-688.awsdns-22.net	-

✅ Authoritative Response

Server:205.251.192.38

NS records: ns-1435.awsdns-51.org, ns-1896.awsdns-45.co.uk, ns-38.awsdns-04.com, ns-688.awsdns-22.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for circleback.com (unsigned zone)

⏱️ Timing

Total: 671ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1435.awsdns-51.org, ns-1896.awsdns-45.co.uk...`
MX	1	`mail.qa.circleback.com (pri: 10)`
SOA	1	`ns-1896.awsdns-45.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-61.awsdns-07.com, ns-61.awsdns-07.com)

Analysis

Hierarchy

mail.qa.circleback.com is a subdomain of qa.circleback.com.

Name Servers

The domain qa.circleback.com is delegated to these four name servers: ns-38.awsdns-04.com, ns-688.awsdns-22.net, ns-1435.awsdns-51.org and ns-1896.awsdns-45.co.uk.

The name servers of qa.circleback.com overlap at least partially with those of other domains — among them zeroimposition.fr, 247.136.200.in-addr.arpa, test.license-maker.nice.aws.a2z.com and two more.

Each of the four hosts ns-38.awsdns-04.com, ns-688.awsdns-22.net, ns-1435.awsdns-51.org and ns-1896.awsdns-45.co.uk has two IP addresses. ns-38.awsdns-04.com points to 205.251.192.38 and 2600:9000:5300:2600::1. ns-688.awsdns-22.net points to 205.251.194.176 and 2600:9000:5302:b000::1. ns-1435.awsdns-51.org points to 205.251.197.155 and 2600:9000:5305:9b00::1. ns-1896.awsdns-45.co.uk points to 205.251.199.104 and 2600:9000:5307:6800::1.

Mail Servers

qa.circleback.com routes its mail through a single mail server, mail.qa.circleback.com.

mail.qa.circleback.com resolves to 52.0.105.248 and no other IP number.