`infrastructure.bg`

DNSSEC	⚠️ Not signed
A	164.138.221.57^{🇧🇬 SUPERHOSTING_AS164.138.220.0/23 SuperHosting.BG Ltd}
		PTR	`pdsbg3np.superdnsserver.net`
NS	`ns1-221-57.superdnsserver.net` ⭐
		A	164.138.221.57^{🇧🇬 SUPERHOSTING_AS164.138.220.0/23 SuperHosting.BG Ltd}
			PTR	`pdsbg3np.superdnsserver.net`
NS	`ns2-221-57.superdnsserver.net`
		A	164.138.221.57^{🇧🇬 SUPERHOSTING_AS164.138.220.0/23 SuperHosting.BG Ltd}
			PTR	`pdsbg3np.superdnsserver.net`
MX	`infrastructure.bg` ⭐
		A	164.138.221.57^{🇧🇬 SUPERHOSTING_AS164.138.220.0/23 SuperHosting.BG Ltd}
			PTR	`pdsbg3np.superdnsserver.net`
TXT	`v=spf1 +a +mx +ip4:164.138.221.57 ~all`
SOA	`ns1-221-57.superdnsserver.net`monitoring@superhosting.bg 2026-08-05 #3

`bg`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.bg` ⭐
	NS	`b.nic.bg`
	NS	`c.nic.bg`
	NS	`d.nic.bg`
	NS	`e.nic.bg`
	NS	`p.nic.bg`
	SOA	`a.nic.bg`hostmaster@register.bg 2026-08-05 #9

MX for

infrastructure.bg

Same first word

infrastructure.com.au

infrastructure.us

infrastructure.pro

infrastructure.es

infrastructure.ltd

infrastructure.institute

infrastructure.support

infrastructure.partners

infrastructure.top

infrastructure.govt.nz

infrastructure.ink

infrastructure.mb.ca

infrastructure.biz

infrastructure.co

infrastructure.blue

infrastructure.be

infrastructure.loans

infrastructure.at

infrastructure.gov.au

infrastructure.solutions

infrastructure.ru

infrastructure.co.za

infrastructure.ca

infrastructure.fr

infrastructure.group

infrastructure.fund

infrastructure.academy

infrastructure.com.hk

infrastructure.org

infrastructure.de

infrastructure.info

infrastructure.world

infrastructure.gov.to

infrastructure.cc

infrastructure.uz

infrastructure.co.jp

infrastructure.com

infrastructure.com.co

infrastructure.jp

infrastructure.aws

infrastructure.gc.ca

infrastructure.exchange

infrastructure.bg

infrastructure.org.au

infrastructure.capital

infrastructure.agency

infrastructure.ventures

infrastructure.expert

Similar names

structureinfra.com

furniturecarts.com

DNS History

10 records (4 active, 6 former)

○NSns.capital.bg2015-08-02 → 2017-07-13 · 4 obs

● 2015-08-02 00:58:02
● 2017-07-13 02:40:20
○ 2026-06-10 05:55:26
○ 2026-08-05 11:42:42

○NSns.spnet.net2015-08-02 → 2017-07-13 · 4 obs

● 2015-08-02 00:58:02
● 2017-07-13 02:40:20
○ 2026-06-10 05:55:26
○ 2026-08-05 11:42:42

●NSns1-221-57.superdnsserver.net2026-06-10 → 2026-08-05 · 3 obs

○ 2017-07-13 02:40:20
● 2026-06-10 05:55:26
● 2026-08-05 11:42:42

●NSns2-221-57.superdnsserver.net2026-06-10 → 2026-08-05 · 3 obs

○ 2017-07-13 02:40:20
● 2026-06-10 05:55:26
● 2026-08-05 11:42:42

○NSns2.capital.bg2015-08-02 → 2017-07-13 · 4 obs

● 2015-08-02 00:58:02
● 2017-07-13 02:40:20
○ 2026-06-10 05:55:26
○ 2026-08-05 11:42:42

○NSpurgatory.spnet.net2015-08-02 → 2017-07-13 · 4 obs

● 2015-08-02 00:58:02
● 2017-07-13 02:40:20
○ 2026-06-10 05:55:26
○ 2026-08-05 11:42:42

●MXinfrastructure.bg2026-06-10 → 2026-08-05 · 3 obs

○ 2017-07-13 02:40:20
● 2026-06-10 05:55:26
● 2026-08-05 11:42:42

○MXmail.thecity.bg2016-03-07 → 2017-07-13 · 4 obs

● 2016-03-07 21:09:36
● 2017-07-13 02:40:20
○ 2026-06-10 05:55:26
○ 2026-08-05 11:42:42

●A164.138.221.572026-06-10 → 2026-08-05 · 3 obs

○ 2017-07-13 02:40:20
● 2026-06-10 05:55:26
● 2026-08-05 11:42:42

○A193.194.140.22015-08-02 → 2017-07-13 · 4 obs

● 2015-08-02 00:58:02
● 2017-07-13 02:40:20
○ 2026-06-10 05:55:26
○ 2026-08-05 11:42:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
bg	a.nic.bg, b.nic.bg, c.nic.bg, d.nic.bg...	-
infrastructure.bg	ns2-221-57.superdnsserver.net, ns1-221-57.superdnsserver.net	-

✅ Authoritative Response

Server:164.138.221.57

NS records: ns2-221-57.superdnsserver.net, ns1-221-57.superdnsserver.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for infrastructure.bg (unsigned zone)

⏱️ Timing

Total: 881ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`164.138.221.57`
NS	2	`ns2-221-57.superdnsserver.net, ns1-221-57.superdnsserver.net`
MX	1	`infrastructure.bg (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:164.138.221.57 ~all`
SOA	1	`ns1-221-57.superdnsserver.net monitoring`

Analysis

Mail Server Role

The MX record for infrastructure.bg points back to infrastructure.bg — it is its own mail server.

IP Addresses

infrastructure.bg directs to one IP number, which is 164.138.221.57.

Among the host names that share IP numbers with infrastructure.bg are ns1-221-57.superdnsserver.net, gradat.bg, mail.thecity.bg and two others.

Name Servers

Two name servers handle the delegation for infrastructure.bg: ns1-221-57.superdnsserver.net and ns2-221-57.superdnsserver.net.

infrastructure.bg has a name server setup in common with gradat.bg, thecity.bg and pds.bg, to name a few.

ns1-221-57.superdnsserver.net directs to 164.138.221.57, as does ns2-221-57.superdnsserver.net — both hostnames resolve to that one IP address.

ns1-221-57.superdnsserver.net along with ns2-221-57.superdnsserver.net each resolve to 164.138.221.57 IP addresses.

Mail Servers

The MX record for infrastructure.bg points to a single mail server: infrastructure.bg.

infrastructure.bg carries a single IP number, which is 164.138.221.57.

infrastructure.bg - robtex.com