`mcu-design.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::ac43:989e^{Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:58c5^{Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.88.197^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.152.158^{Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`anna.ns.cloudflare.com` ⭐
NS	`marek.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`marek.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`marek.ns.cloudflare.com`
		A	108.162.193.202^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	172.64.33.202^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
		A	173.245.59.202^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`marek.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.88.197, 172.67.152.158
		IPv6 hints	2606:4700:3035::ac43:989e, 2606:4700:3037::6815:58c5
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=245, name=cloudflare-ech.com
SOA	`anna.ns.cloudflare.com`dns@cloudflare.com serial=2398394675

`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=1777106671

Same first word

mcu-design.com

DNS History

16 records (6 active, 10 former)

○NSa.share-dns.com2026-03-31 → 2026-04-25 · 2 obs

○ 2026-03-31 09:23:06
○ 2026-04-25 09:02:46

●NSanna.ns.cloudflare.com2026-03-31 → 2026-04-25 · 3 obs

○ 2017-04-19 00:15:42
● 2026-03-31 09:23:06
● 2026-04-25 09:02:46

○NSb.share-dns.net2026-03-31 → 2026-04-25 · 2 obs

○ 2026-03-31 09:23:06
○ 2026-04-25 09:02:46

○NSdns10.hichina.com2015-12-08 → 2017-04-19 · 4 obs

● 2015-12-08 18:33:30
● 2017-04-19 00:15:42
○ 2026-03-31 09:23:06
○ 2026-04-25 09:02:46

○NSdns9.hichina.com2015-12-08 → 2017-04-19 · 4 obs

● 2015-12-08 18:33:30
● 2017-04-19 00:15:42
○ 2026-03-31 09:23:06
○ 2026-04-25 09:02:46

●NSmarek.ns.cloudflare.com2026-03-31 → 2026-04-25 · 3 obs

○ 2017-04-19 00:15:42
● 2026-03-31 09:23:06
● 2026-04-25 09:02:46

●A104.21.88.1972026-03-31 → 2026-04-25 · 3 obs

○ 2017-04-19 00:15:42
● 2026-03-31 09:23:06
● 2026-04-25 09:02:46

○A115.126.69.432016-09-20 → 2016-09-20 · 4 obs

○ 2016-03-10 00:14:28
● 2016-09-20 03:47:10
○ 2017-04-19 00:15:42
○ 2026-04-25 09:02:46

○A118.193.156.1862015-12-08 → 2015-12-08 · 3 obs

● 2015-12-08 18:33:30
○ 2016-03-10 00:14:28
○ 2026-04-25 09:02:46

○A118.193.242.1742016-03-10 → 2016-03-10 · 4 obs

○ 2015-12-08 18:33:30
● 2016-03-10 00:14:28
○ 2016-09-20 03:47:10
○ 2026-04-25 09:02:46

●A172.67.152.1582026-03-31 → 2026-04-25 · 3 obs

○ 2017-04-19 00:15:42
● 2026-03-31 09:23:06
● 2026-04-25 09:02:46

○A23.91.100.712017-04-19 → 2017-04-19 · 4 obs

○ 2016-09-20 03:47:10
● 2017-04-19 00:15:42
○ 2026-03-31 09:23:06
○ 2026-04-25 09:02:46

●A2606:4700:3035::ac43:989e2026-03-31 → 2026-04-25 · 3 obs

○ 2017-04-19 00:15:42
● 2026-03-31 09:23:06
● 2026-04-25 09:02:46

●A2606:4700:3037::6815:58c52026-03-31 → 2026-04-25 · 3 obs

○ 2017-04-19 00:15:42
● 2026-03-31 09:23:06
● 2026-04-25 09:02:46

○A45.203.104.1302026-03-31 → 2026-04-25 · 2 obs

○ 2026-03-31 09:23:06
○ 2026-04-25 09:02:46

○CNAMEhyzkdz.62.v53.faidns.com2015-12-08 → 2017-04-19 · 4 obs

● 2015-12-08 18:33:30
● 2017-04-19 00:15:42
○ 2026-03-31 09:23:06
○ 2026-04-25 09:02:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mcu-design.com	anna.ns.cloudflare.com, marek.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.102

NS records: anna.ns.cloudflare.com, marek.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mcu-design.com (unsigned zone)

⏱️ Timing

Total: 253ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.88.197, 172.67.152.158`
AAAA	2	`2606:4700:3035::ac43:989e, 2606:4700:3037::6815:58c5`
NS	2	`anna.ns.cloudflare.com, marek.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`anna.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (anna.ns.cloudflare.com, anna.ns.cloudflare.com, anna.ns.cloudflare.com...)

Analysis

IP Addresses

mcu-design.com maps to four IP numbers: 2606:4700:3035::ac43:989e, 2606:4700:3037::6815:58c5, 104.21.88.197 and 172.67.152.158.

Name Servers

Two name servers anna.ns.cloudflare.com and marek.ns.cloudflare.com handle the delegation for mcu-design.com.

Host names with six IP numbers.

The host name marek.ns.cloudflare.com points to 2606:4700:58::adf5:3bca, 2803:f800:50::6ca2:c1ca, 2a06:98c1:50::ac40:21ca, 108.162.193.202, 172.64.33.202 and 173.245.59.202.

mcu-design.com - robtex.com

mcu-design.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`mcu-design.com`

`com`