`declanstack.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:1a17^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:872b^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.26.23^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.135.43^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elsa.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a6f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elsa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elsa.ns.cloudflare.com`
		A	108.162.192.111^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	172.64.32.111^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.ns.cloudflare.com`
		A	173.245.58.111^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elsa.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`
MX	`filtered.antispam.ie` ⭐
		A	78.153.212.228^{🇮🇪 BLACKNIGHT-AS78.153.212.0/24 IE-BLACKNIGHT-INFRA}
			PTR	`s1-se.blacknight.ie`
		A	78.153.212.229^{🇮🇪 BLACKNIGHT-AS78.153.212.0/24 IE-BLACKNIGHT-INFRA}
			PTR	`s2-se.blacknight.ie`
MX	`smtp1r.cp.blacknight.com` ⭐
		A	81.17.254.19^{🇮🇪 BLACKNIGHT-AS81.17.240.0/20 IE-BLACKNIGHT-PA}
			PTR	`nginxmailproxy001.blacknight.com`
		A	81.17.254.20^{🇮🇪 BLACKNIGHT-AS81.17.240.0/20 IE-BLACKNIGHT-PA}
			PTR	`nginxmailproxy002.blacknight.com`
		A	81.17.254.21^{🇮🇪 BLACKNIGHT-AS81.17.240.0/20 IE-BLACKNIGHT-PA}
			PTR	`nginxmxproxy001.blacknight.com`
		A	81.17.254.22^{🇮🇪 BLACKNIGHT-AS81.17.240.0/20 IE-BLACKNIGHT-PA}
			PTR	`nginxmxproxy002.blacknight.com`
TXT	`v=spf1 a include:spf.blacknight.ie ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.26.23, 172.67.135.43
		IPv6 hints	2606:4700:3031::6815:1a17, 2606:4700:3037::ac43:872b
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com
SOA	`elsa.ns.cloudflare.com`dns@cloudflare.com serial=2408952692

`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=1783840892

Same first word

declanstack.com

DNS History

18 records (8 active, 10 former)

●NSelsa.ns.cloudflare.com2017-04-05 → 2026-07-12 · 3 obs

○ 2016-09-08 23:02:30
● 2017-04-05 16:30:26
● 2026-07-12 07:29:34

●NSmarek.ns.cloudflare.com2017-04-05 → 2026-07-12 · 3 obs

○ 2016-09-08 23:02:30
● 2017-04-05 16:30:26
● 2026-07-12 07:29:34

○NSns1.blacknight.com2015-06-14 → 2016-09-08 · 4 obs

● 2015-06-14 17:03:04
● 2016-09-08 23:02:30
○ 2017-04-05 16:30:26
○ 2026-07-12 07:29:34

○NSns2.blacknight.com2015-06-14 → 2016-09-08 · 4 obs

● 2015-06-14 17:03:04
● 2016-09-08 23:02:30
○ 2017-04-05 16:30:26
○ 2026-07-12 07:29:34

●MXfiltered.antispam.ie2015-06-14 → 2026-07-12 · 2 obs

● 2015-06-14 17:03:04
● 2026-07-12 07:29:34

●MXsmtp1r.cp.blacknight.com2026-02-17 → 2026-07-12 · 3 obs

○ 2015-06-14 17:03:04
● 2026-02-17 10:43:44
● 2026-07-12 07:29:34

●A104.21.26.232026-02-17 → 2026-07-12 · 3 obs

○ 2017-04-05 16:30:26
● 2026-02-17 10:43:44
● 2026-07-12 07:29:34

○A104.28.24.1142017-04-05 → 2017-04-05 · 4 obs

○ 2016-09-08 23:02:30
● 2017-04-05 16:30:26
○ 2026-02-17 10:43:44
○ 2026-07-12 07:29:34

○A104.28.25.1142017-04-05 → 2017-04-05 · 4 obs

○ 2016-09-08 23:02:30
● 2017-04-05 16:30:26
○ 2026-02-17 10:43:44
○ 2026-07-12 07:29:34

●A172.67.135.432026-02-17 → 2026-07-12 · 3 obs

○ 2017-04-05 16:30:26
● 2026-02-17 10:43:44
● 2026-07-12 07:29:34

○A185.2.67.142015-06-14 → 2016-09-08 · 4 obs

● 2015-06-14 17:03:04
● 2016-09-08 23:02:30
○ 2017-04-05 16:30:26
○ 2026-07-12 07:29:34

○A2400:cb00:2048:1::681c:18722017-04-05 → 2017-04-05 · 4 obs

○ 2016-09-08 23:02:30
● 2017-04-05 16:30:26
○ 2026-02-17 10:43:44
○ 2026-07-12 07:29:34

○A2400:cb00:2048:1::681c:19722017-04-05 → 2017-04-05 · 4 obs

○ 2016-09-08 23:02:30
● 2017-04-05 16:30:26
○ 2026-02-17 10:43:44
○ 2026-07-12 07:29:34

●A2606:4700:3031::6815:1a172026-06-28 → 2026-07-12 · 3 obs

○ 2026-06-03 12:27:18
● 2026-06-28 18:12:12
● 2026-07-12 07:29:34

○A2606:4700:3031::ac43:872b2026-02-17 → 2026-06-03 · 5 obs

○ 2017-04-05 16:30:26
● 2026-02-17 10:43:44
● 2026-06-03 12:27:18
○ 2026-06-28 18:12:12
○ 2026-07-12 07:29:34

○A2606:4700:3033::6815:1a172026-02-17 → 2026-06-03 · 5 obs

○ 2017-04-05 16:30:26
● 2026-02-17 10:43:44
● 2026-06-03 12:27:18
○ 2026-06-28 18:12:12
○ 2026-07-12 07:29:34

●A2606:4700:3037::ac43:872b2026-06-28 → 2026-07-12 · 3 obs

○ 2026-06-03 12:27:18
● 2026-06-28 18:12:12
● 2026-07-12 07:29:34

○A2a01:a8:dc0:330:1::10332015-06-14 → 2016-09-08 · 4 obs

● 2015-06-14 17:03:04
● 2016-09-08 23:02:30
○ 2017-04-05 16:30:26
○ 2026-07-12 07:29:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
declanstack.com	elsa.ns.cloudflare.com, marek.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.202

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for declanstack.com (unsigned zone)

⏱️ Timing

Total: 198ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.135.43, 104.21.26.23`
AAAA	2	`2606:4700:3037::ac43:872b, 2606:4700:3031::6815:1a17`
NS	2	`elsa.ns.cloudflare.com, marek.ns.cloudflare.com`
MX	2	`filtered.antispam.ie (pri: 10), smtp1r.cp.blacknight.com (pri: 10)`
TXT	1	`v=spf1 a include:spf.blacknight.ie ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elsa.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

declanstack.com has four IP addresses: 104.21.26.23, 172.67.135.43, 2606:4700:3031::6815:1a17 and 2606:4700:3037::ac43:872b.

bioeffect.pl, brasty.pl, cafescent.net and two other host names share IP numbers with declanstack.com.

Name Servers

The NS records for declanstack.com delegate to elsa.ns.cloudflare.com and marek.ns.cloudflare.com.

declanstack.com uses the same name servers as several other domains — among them cav.mg, hairformen.ie, anmpress.com and two more.

declanstack.com partially shares its NS delegation with several other domains, including (0x616e616c)is.id, corporatecouncilonafrica.com, thedogsnobs.com and two others.

These name servers often co-occur with the name servers trace.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

elsa.ns.cloudflare.com maps to 108.162.192.111, 172.64.32.111, 173.245.58.111 and 3 additional IP addresses.

marek.ns.cloudflare.com maps to 108.162.193.202, 172.64.33.202, 173.245.59.202 and 3 additional IP addresses.

Mail Servers

Mail for declanstack.com is handled by two mail servers — filtered.antispam.ie and smtp1r.cp.blacknight.com.

The mail server configuration of declanstack.com is identical to that of other domains, for example decscanner.com and berrating.ie.

declanstack.com has at least partial mail server overlap with other domains such as totalrma.com, baumanns.ie, lookwest.ie and two more.

These mail servers commonly co-occur with mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 3 others.

Hosts that point to four IP numbers:

smtp1r.cp.blacknight.com maps to the following IP addresses: 81.17.254.19, 81.17.254.20, 81.17.254.21 and 81.17.254.22.

Hostnames that resolve to two IP addresses:

The A records for filtered.antispam.ie return 78.153.212.228 and 78.153.212.229.

declanstack.com - robtex.com

declanstack.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

Mail Servers

`declanstack.com`

`com`