`michaelku.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3037::6815:5d90^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:d31a^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.93.144^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.211.26^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`burt.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`burt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`burt.ns.cloudflare.com`
		A	108.162.193.79^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	172.64.33.79^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	173.245.59.79^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
NS	`cloe.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a56^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cloe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c056^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cloe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2056^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cloe.ns.cloudflare.com`
		A	108.162.192.86^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cloe.ns.cloudflare.com`
		A	172.64.32.86^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cloe.ns.cloudflare.com`
		A	173.245.58.86^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cloe.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.93.144, 172.67.211.26
		IPv6	2606:4700:3037::6815:5d90, 2606:4700:3037::ac43:d31a
SOA	`burt.ns.cloudflare.com`dns@cloudflare.com serial=2396893773

`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=1771291435

DNS History

11 records (6 active, 5 former)

●NSburt.ns.cloudflare.com2015-09-04 → 2026-03-10 · 2 obs

● 2015-09-04 14:02:50
● 2026-03-10 05:26:24

●NScloe.ns.cloudflare.com2015-09-04 → 2026-03-10 · 2 obs

● 2015-09-04 14:02:50
● 2026-03-10 05:26:24

○MXmail.michaelku.com2015-09-04 → 2016-08-07 · 4 obs

● 2015-09-04 14:02:50
● 2016-08-07 00:43:00
○ 2026-03-10 05:26:22
○ 2026-03-10 05:26:24

●A104.21.93.1442026-03-10 → 2026-03-10 · 3 obs

○ 2016-08-07 00:43:00
● 2026-03-10 05:26:22
● 2026-03-10 05:26:24

○A104.27.188.562015-09-04 → 2016-08-07 · 4 obs

● 2015-09-04 14:02:50
● 2016-08-07 00:43:00
○ 2026-03-10 05:26:22
○ 2026-03-10 05:26:24

○A104.27.189.562015-09-04 → 2016-08-07 · 4 obs

● 2015-09-04 14:02:50
● 2016-08-07 00:43:00
○ 2026-03-10 05:26:22
○ 2026-03-10 05:26:24

●A172.67.211.262026-03-10 → 2026-03-10 · 3 obs

○ 2016-08-07 00:43:00
● 2026-03-10 05:26:22
● 2026-03-10 05:26:24

○A2400:cb00:2048:1::681b:bc382015-09-04 → 2016-08-07 · 4 obs

● 2015-09-04 14:02:50
● 2016-08-07 00:43:00
○ 2026-03-10 05:26:22
○ 2026-03-10 05:26:24

○A2400:cb00:2048:1::681b:bd382015-09-04 → 2016-08-07 · 4 obs

● 2015-09-04 14:02:50
● 2016-08-07 00:43:00
○ 2026-03-10 05:26:22
○ 2026-03-10 05:26:24

●A2606:4700:3037::6815:5d902026-03-10 → 2026-03-10 · 3 obs

○ 2016-08-07 00:43:00
● 2026-03-10 05:26:22
● 2026-03-10 05:26:24

●A2606:4700:3037::ac43:d31a2026-03-10 → 2026-03-10 · 3 obs

○ 2016-08-07 00:43:00
● 2026-03-10 05:26:22
● 2026-03-10 05:26:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
michaelku.com	cloe.ns.cloudflare.com, burt.ns.cloudflare.com	12 records

✅ Authoritative Response

Server: 108.162.192.86

NS records: cloe.ns.cloudflare.com, burt.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for michaelku.com (unsigned zone)

⏱️ Timing

Total: 85ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.93.144, 172.67.211.26`
AAAA	2	`2606:4700:3037::ac43:d31a, 2606:4700:3037::6815:5d90`
NS	2	`burt.ns.cloudflare.com, cloe.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`burt.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

michaelku.com maps to four IP numbers: 2606:4700:3037::6815:5d90, 2606:4700:3037::ac43:d31a, 104.21.93.144 and 172.67.211.26.

Other host names, for instance www.surtex.com, mail.specialten.com, www.igopost.at, kadinkabsaburaijua.org and nantucketmuseumshop.org share IP numbers with michaelku.com.

Name Servers

Two name servers burt.ns.cloudflare.com and cloe.ns.cloudflare.com are delegated to michaelku.com.

michaelku.com uses the same name server configuration as other domains, such as strivals.com, fabbricabenessere.it, sover.dk, homeserver.net and altcaps.com.

michaelku.com at least partially shares name servers with other domains such as dl-ser2985.online, democratikdesign.com, 4thstreetauto.net, cloudsto.com and yogaguru.org.

these name servers are commonly used with the name servers norman.ns.cloudflare.com.

Host names with six IP numbers: Host name burt.ns.cloudflare.com points to 2606:4700:58::adf5:3b4f, 2803:f800:50::6ca2:c14f, 2a06:98c1:50::ac40:214f, 108.162.193.79, 172.64.33.79 and 173.245.59.79; host name cloe.ns.cloudflare.com points to 2606:4700:50::adf5:3a56, 2803:f800:50::6ca2:c056, 2a06:98c1:50::ac40:2056, 108.162.192.86, 172.64.32.86 and 173.245.58.86.

michaelku.com - robtex.com

michaelku.com

com

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`michaelku.com`

`com`