`duclerck.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:53cf^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:b54e^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.83.207^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.181.78^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlan.ns.cloudflare.com`
		A	108.162.195.250^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	162.159.44.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	172.64.35.250^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
NS	`nena.ns.cloudflare.com`
		A	2606:4700:50::a29f:26a1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`nena.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`nena.ns.cloudflare.com`
		A	108.162.194.161^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	162.159.38.161^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
		A	172.64.34.161^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`nena.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.83.207, 172.67.181.78
		IPv6 hints	2606:4700:3031::6815:53cf, 2606:4700:3036::ac43:b54e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=71, name=cloudflare-ech.com
SOA	`harlan.ns.cloudflare.com`dns@cloudflare.com serial=2399742093

`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=1778397246

WOT: UNKNOWN (50/100)

Subdomains

mail.duclerck.com

Same first word

duclerck.com

DNS History

18 records (6 active, 12 former)

○NSa.share-dns.com2026-02-17 → 2026-03-21 · 5 obs

○ 2019-06-29 04:25:50
● 2026-02-17 03:57:24
● 2026-03-21 23:42:26
○ 2026-05-05 13:20:30
○ 2026-05-10 07:29:50

○NSa3.share-dns.com2026-02-17 → 2026-03-21 · 5 obs

○ 2019-06-29 04:25:50
● 2026-02-17 03:57:24
● 2026-03-21 23:42:26
○ 2026-05-05 13:20:30
○ 2026-05-10 07:29:50

○NSb.share-dns.net2026-02-17 → 2026-03-21 · 5 obs

○ 2019-06-29 04:25:50
● 2026-02-17 03:57:24
● 2026-03-21 23:42:26
○ 2026-05-05 13:20:30
○ 2026-05-10 07:29:50

○NSb3.share-dns.net2026-02-17 → 2026-03-21 · 5 obs

○ 2019-06-29 04:25:50
● 2026-02-17 03:57:24
● 2026-03-21 23:42:26
○ 2026-05-05 13:20:30
○ 2026-05-10 07:29:50

●NSharlan.ns.cloudflare.com2026-05-05 → 2026-05-10 · 3 obs

○ 2026-03-21 23:42:26
● 2026-05-05 13:20:30
● 2026-05-10 07:29:50

●NSnena.ns.cloudflare.com2026-05-05 → 2026-05-10 · 3 obs

○ 2026-03-21 23:42:26
● 2026-05-05 13:20:30
● 2026-05-10 07:29:50

○NSns1.maff.com2019-06-29 → 2019-06-29 · 4 obs

○ 2016-11-25 10:59:14
● 2019-06-29 04:25:50
○ 2026-02-17 03:57:24
○ 2026-05-10 07:29:50

○NSns1.phatservers.com2015-08-28 → 2016-11-25 · 4 obs

● 2015-08-28 13:24:34
● 2016-11-25 10:59:14
○ 2019-06-29 04:25:50
○ 2026-05-10 07:29:50

○NSns2.maff.com2019-06-29 → 2019-06-29 · 4 obs

○ 2016-11-25 10:59:14
● 2019-06-29 04:25:50
○ 2026-02-17 03:57:24
○ 2026-05-10 07:29:50

○NSns2.phatservers.com2015-08-28 → 2016-11-25 · 4 obs

● 2015-08-28 13:24:34
● 2016-11-25 10:59:14
○ 2019-06-29 04:25:50
○ 2026-05-10 07:29:50

○MXmail.duclerck.com2015-08-28 → 2016-11-25 · 4 obs

● 2015-08-28 13:24:34
● 2016-11-25 10:59:14
○ 2019-06-29 04:25:50
○ 2026-05-10 07:29:50

●A104.21.83.2072026-05-05 → 2026-05-10 · 3 obs

○ 2026-03-21 23:42:26
● 2026-05-05 13:20:30
● 2026-05-10 07:29:50

○A154.215.49.462019-06-29 → 2019-06-29 · 4 obs

○ 2016-11-25 10:59:14
● 2019-06-29 04:25:50
○ 2026-02-17 03:57:24
○ 2026-05-10 07:29:50

●A172.67.181.782026-05-05 → 2026-05-10 · 3 obs

○ 2026-03-21 23:42:26
● 2026-05-05 13:20:30
● 2026-05-10 07:29:50

●A2606:4700:3031::6815:53cf2026-05-05 → 2026-05-10 · 3 obs

○ 2026-03-21 23:42:26
● 2026-05-05 13:20:30
● 2026-05-10 07:29:50

●A2606:4700:3036::ac43:b54e2026-05-05 → 2026-05-10 · 3 obs

○ 2026-03-21 23:42:26
● 2026-05-05 13:20:30
● 2026-05-10 07:29:50

○A38.11.92.1322026-02-17 → 2026-03-21 · 5 obs

○ 2019-06-29 04:25:50
● 2026-02-17 03:57:24
● 2026-03-21 23:42:26
○ 2026-05-05 13:20:30
○ 2026-05-10 07:29:50

○A64.6.101.752015-08-28 → 2016-11-25 · 4 obs

● 2015-08-28 13:24:34
● 2016-11-25 10:59:14
○ 2019-06-29 04:25:50
○ 2026-05-10 07:29:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
duclerck.com	nena.ns.cloudflare.com, harlan.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.250

NS records: nena.ns.cloudflare.com, harlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duclerck.com (unsigned zone)

⏱️ Timing

Total: 143ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.181.78, 104.21.83.207`
AAAA	2	`2606:4700:3036::ac43:b54e, 2606:4700:3031::6815:53cf`
NS	2	`harlan.ns.cloudflare.com, nena.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harlan.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

duclerck.com is a parent of mail.duclerck.com.

IP Addresses

duclerck.com resolves to four IPs: 2606:4700:3031::6815:53cf, 2606:4700:3036::ac43:b54e, 104.21.83.207 and 172.67.181.78.

Other host names such as www.xpand.asia, turnerlabels.com, telfordjobbox.co.uk, karatzova.com and mail1730.eeiemblem.com share IP numbers with duclerck.com.

Name Servers

duclerck.com is delegated to two name servers: harlan.ns.cloudflare.com and nena.ns.cloudflare.com.

duclerck.com uses the same name server setup as other domains, including bbspt.com, garden-r.com, bzclw.com, leituu.com and sharkiaonline.com.

At least part of the name servers for duclerck.com are shared with other domains, for instance perueducativo.com, novauniversitas.com, chenyu.tw, bio-solutionscr.com and newbahis.com.

These name servers are commonly used alongside the name servers jule.ns.cloudflare.com.

Host names with six IP numbers:

harlan.ns.cloudflare.com points to: 2606:4700:58::a29f:2cfa, 2803:f800:50::6ca2:c3fa, 2a06:98c1:50::ac40:23fa, 108.162.195.250, 162.159.44.250 and 172.64.35.250.

nena.ns.cloudflare.com points to: 2606:4700:50::a29f:26a1, 2803:f800:50::6ca2:c2a1, 2a06:98c1:50::ac40:22a1, 108.162.194.161, 162.159.38.161 and 172.64.34.161.

duclerck.com - robtex.com

duclerck.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`duclerck.com`

`com`