circuitblocks.com - dns.ninja

`circuitblocks.com`

DNSSEC	⚠️ Not signed
A	216.250.120.153^{🇺🇸 IONOS-AS216.250.112.0/20 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
		PTR	`perfora.net`
NS	`ns1021.ui-dns.org` ⭐
		A	2001:8d8:fe:53:0:d9a0:5315:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.org`
		A	217.160.83.21^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.org`
NS	`ns1021.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:5115:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.biz`
		A	217.160.81.21^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.biz`
NS	`ns1021.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:5215:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.com`
		A	217.160.82.21^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.com`
NS	`ns1021.ui-dns.de`
		A	2001:8d8:fe:53:0:d9a0:5015:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.de`
		A	217.160.80.21^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1021.ui-dns.de`
MX	`mx00.ionos.com` ⭐
		A	74.208.5.3^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx00.perfora.net`
MX	`mx01.ionos.com` ⭐
		A	74.208.5.21^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx01.perfora.net`
TXT	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	`ns1021.ui-dns.org`hostmaster@1and1.com 2016-06-16 #3

`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=1783049256

Same first word

circuitblocks.com

DNS History

12 records (7 active, 5 former)

●NSns1021.ui-dns.biz2026-03-30 → 2026-07-03 · 3 obs

○ 2017-05-23 05:03:10
● 2026-03-30 16:35:00
● 2026-07-03 04:02:00

●NSns1021.ui-dns.com2026-03-30 → 2026-07-03 · 3 obs

○ 2017-05-23 05:03:10
● 2026-03-30 16:35:00
● 2026-07-03 04:02:00

●NSns1021.ui-dns.de2026-03-30 → 2026-07-03 · 3 obs

○ 2017-05-23 05:03:10
● 2026-03-30 16:35:00
● 2026-07-03 04:02:00

●NSns1021.ui-dns.org2026-03-30 → 2026-07-03 · 3 obs

○ 2017-05-23 05:03:10
● 2026-03-30 16:35:00
● 2026-07-03 04:02:00

○NSns57.1and1.com2015-08-16 → 2017-05-23 · 4 obs

● 2015-08-16 11:43:26
● 2017-05-23 05:03:10
○ 2026-03-30 16:35:00
○ 2026-07-03 04:02:00

○NSns58.1and1.com2015-08-16 → 2017-05-23 · 4 obs

● 2015-08-16 11:43:26
● 2017-05-23 05:03:10
○ 2026-03-30 16:35:00
○ 2026-07-03 04:02:00

○MXmx00.1and1.com2015-08-16 → 2017-05-23 · 4 obs

● 2015-08-16 11:43:26
● 2017-05-23 05:03:10
○ 2026-03-30 16:35:00
○ 2026-07-03 04:02:00

●MXmx00.ionos.com2026-03-30 → 2026-07-03 · 3 obs

○ 2017-05-23 05:03:10
● 2026-03-30 16:35:00
● 2026-07-03 04:02:00

○MXmx01.1and1.com2015-08-16 → 2017-05-23 · 4 obs

● 2015-08-16 11:43:26
● 2017-05-23 05:03:10
○ 2026-03-30 16:35:00
○ 2026-07-03 04:02:00

●MXmx01.ionos.com2026-03-30 → 2026-07-03 · 3 obs

○ 2017-05-23 05:03:10
● 2026-03-30 16:35:00
● 2026-07-03 04:02:00

●A216.250.120.1532016-09-10 → 2026-07-03 · 3 obs

○ 2016-03-20 01:06:36
● 2016-09-10 04:43:18
● 2026-07-03 04:02:00

○A74.208.169.2042015-08-16 → 2016-03-20 · 4 obs

● 2015-08-16 11:43:26
● 2016-03-20 01:06:36
○ 2016-09-10 04:43:18
○ 2026-07-03 04:02:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
circuitblocks.com	ns1021.ui-dns.de, ns1021.ui-dns.biz, ns1021.ui-dns.org, ns1021.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.82.21

NS records: ns1021.ui-dns.de, ns1021.ui-dns.biz, ns1021.ui-dns.org, ns1021.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for circuitblocks.com (unsigned zone)

⏱️ Timing

Total: 1260ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.250.120.153`
NS	4	`ns1021.ui-dns.org, ns1021.ui-dns.com...`
MX	2	`mx00.ionos.com (pri: 10), mx01.ionos.com (pri: 10)`
TXT	1	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	1	`ns1021.ui-dns.org hostmaster.1and1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1021.ui-dns.com, ns1021.ui-dns.com)

Analysis

IP Addresses

circuitblocks.com has exactly one IP address — 216.250.120.153.

malpractice-medical-insurance.com, radtopia.com, globalweb.org plus two other host names have IP numbers in common with circuitblocks.com.

Name Servers

Four name servers handle the delegation for circuitblocks.com: ns1021.ui-dns.biz, ns1021.ui-dns.com, ns1021.ui-dns.de and ns1021.ui-dns.org.

circuitblocks.com partially shares its NS delegation with several other domains, including ultradads.com, nenewrites.com, zahnaerzte-bruehl.de and two others.

The name servers ns1105.ui-dns.de, ns1033.ui-dns.com, ns1029.ui-dns.org and ns1099.ui-dns.de are often found in use alongside these name servers.

ns1021.ui-dns.biz, ns1021.ui-dns.com, ns1021.ui-dns.de and ns1021.ui-dns.org each carry two IP addresses. ns1021.ui-dns.biz has 217.160.81.21 and 2001:8d8:fe:53:0:d9a0:5115:100; ns1021.ui-dns.com has 217.160.82.21 and 2001:8d8:fe:53:0:d9a0:5215:100; ns1021.ui-dns.de has 217.160.80.21 and 2001:8d8:fe:53:0:d9a0:5015:100; ns1021.ui-dns.org has 217.160.83.21 and 2001:8d8:fe:53:0:d9a0:5315:100.

Mail Servers

circuitblocks.com uses two mail servers, mx00.ionos.com and mx01.ionos.com.

The mail server setup of circuitblocks.com matches that of other domains such as postygo.com, crownlaw.legal, therajaha.com and two others.

mx00.ionos.com resolves to 74.208.5.3. mx01.ionos.com resolves to 74.208.5.21. Both host names point to a single IP number.