nl.coolmailer.workers.dev - dns.ninja

`nl.coolmailer.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:437^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:99e8^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.4.55^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.153.232^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.4.55, 172.67.153.232
		IPv6 hints	2606:4700:3035::6815:437, 2606:4700:3036::ac43:99e8
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=135, name=cloudflare-ech.com

`coolmailer.workers.dev`

	DNSSEC	⚠️ Not signed
	NS	`keira.ns.cloudflare.com` ⭐
	NS	`marty.ns.cloudflare.com`
	SOA	`keira.ns.cloudflare.com`dns@cloudflare.com serial=2411244134

Same first word

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nl.s3-website-eu-west-1.amazonaws.com

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nl.s3-website-us-east-1.amazonaws.com

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nl

nl.tv

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nl.blogspot.com

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nl.casino

nl.s3.eu-north-1.amazonaws.com

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nl.bnpparibas

nl.s3.eu-west-1.amazonaws.com

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nl.ai

nl.is

nl.lt

nl.ro

nl.be

nl.ee

nl.gob.mx

nl.gov.jo

nl.ax

nl.im

nl.ru

nl.org.tr

nl.ua

nl.pl

nl.s3-website.eu-west-2.amazonaws.com

nl.sg

nl.beer

nl.de

nl.cz

nl.s3.eu-central-1.amazonaws.com

nl.com.mx

nl.uk

nl.bauhaus

nl.abbott

nl.lv

nl.s3-eu-west-1.amazonaws.com

nl.fr

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nl.global.prod.fastly.net

nl.uz

nl.co.uk

nl.com.ua

nl.ws

nl.no

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nl.ht

nl.co.za

nl.gy

nl.baby

nl.al

nl.hu

nl.fm

nl.pizza

nl.s3-website.eu-central-1.amazonaws.com

nl.weber

nl.vg

nl.digital

nl.s3-eu-central-1.amazonaws.com

nl.dk

nl.com.tr

nl.pe

nl.computer

nl.gp

nl.to

nl.s3-website.us-east-2.amazonaws.com

nl.dev

nl.org

nl.cm

nl.com

nl.tc

nl.co.kr

nl.com.br

nl.ae

nl.ms

nl.tn

nl.hockey

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nl.ma

nl.nu

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ln.cz

ln.arq.br

ln.no

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ln.ai

ln.lv

ln.net

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DNS History

14 records (4 active, 10 former)

●A104.21.4.552026-03-11 → 2026-08-04 · 9 obs

● 2026-03-11 00:55:02
● 2026-05-16 12:55:32
○ 2026-05-27 22:40:56
○ 2026-05-27 23:46:38
● 2026-05-29 11:42:00
● 2026-06-02 04:10:42
○ 2026-06-03 22:41:46
○ 2026-06-04 03:33:34
● 2026-08-04 05:05:46

●A172.67.153.2322026-03-11 → 2026-08-04 · 9 obs

○A188.114.96.02026-05-27 → 2026-06-04 · 8 obs

○ 2026-05-27 22:40:56
● 2026-05-27 23:46:38
○ 2026-05-29 11:42:00
○ 2026-06-03 22:41:46
● 2026-06-04 02:28:48
○ 2026-06-04 03:03:16
● 2026-06-04 03:33:34
○ 2026-08-04 05:05:46

○A188.114.96.42026-05-27 → 2026-06-04 · 9 obs

○ 2026-05-16 12:55:32
● 2026-05-27 22:40:56
○ 2026-05-27 23:46:38
○ 2026-06-02 04:10:42
● 2026-06-03 22:41:46
○ 2026-06-04 02:28:48
● 2026-06-04 03:03:16
○ 2026-06-04 03:33:34
○ 2026-08-04 05:05:46

○A188.114.97.02026-05-27 → 2026-06-04 · 8 obs

○ 2026-05-27 22:40:56
● 2026-05-27 23:46:38
○ 2026-05-29 11:42:00
○ 2026-06-03 22:41:46
● 2026-06-04 02:28:48
○ 2026-06-04 03:03:16
● 2026-06-04 03:33:34
○ 2026-08-04 05:05:46

○A188.114.97.42026-05-27 → 2026-06-04 · 9 obs

○A2606:4700:3031::6815:4372026-03-11 → 2026-06-02 · 8 obs

● 2026-03-11 00:55:02
● 2026-05-16 12:55:32
○ 2026-05-27 22:40:56
○ 2026-05-27 23:46:38
● 2026-05-29 11:42:00
● 2026-06-02 04:10:42
○ 2026-06-03 22:41:46
○ 2026-08-04 05:05:46

●A2606:4700:3035::6815:4372026-08-04 → 2026-08-04 · 2 obs

○ 2026-06-04 03:33:34
● 2026-08-04 05:05:46

○A2606:4700:3035::ac43:99e82026-03-11 → 2026-06-02 · 8 obs

● 2026-03-11 00:55:02
● 2026-05-16 12:55:32
○ 2026-05-27 22:40:56
○ 2026-05-27 23:46:38
● 2026-05-29 11:42:00
● 2026-06-02 04:10:42
○ 2026-06-03 22:41:46
○ 2026-08-04 05:05:46

●A2606:4700:3036::ac43:99e82026-08-04 → 2026-08-04 · 2 obs

○ 2026-06-04 03:33:34
● 2026-08-04 05:05:46

○A2a06:98c1:3120::2026-05-27 → 2026-06-04 · 6 obs

○ 2026-05-27 22:40:56
● 2026-05-27 23:46:38
○ 2026-05-29 11:42:00
○ 2026-06-04 03:03:16
● 2026-06-04 03:33:34
○ 2026-08-04 05:05:46

○A2a06:98c1:3120::42026-05-27 → 2026-06-04 · 8 obs

○ 2026-05-16 12:55:32
● 2026-05-27 22:40:56
○ 2026-05-27 23:46:38
○ 2026-06-02 04:10:42
● 2026-06-03 22:41:46
● 2026-06-04 03:03:16
○ 2026-06-04 03:33:34
○ 2026-08-04 05:05:46

○A2a06:98c1:3121::2026-05-27 → 2026-06-04 · 6 obs

○ 2026-05-27 22:40:56
● 2026-05-27 23:46:38
○ 2026-05-29 11:42:00
○ 2026-06-04 03:03:16
● 2026-06-04 03:33:34
○ 2026-08-04 05:05:46

○A2a06:98c1:3121::42026-05-27 → 2026-06-04 · 8 obs

○ 2026-05-16 12:55:32
● 2026-05-27 22:40:56
○ 2026-05-27 23:46:38
○ 2026-06-02 04:10:42
● 2026-06-03 22:41:46
● 2026-06-04 03:03:16
○ 2026-06-04 03:33:34
○ 2026-08-04 05:05:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
coolmailer.workers.dev	keira.ns.cloudflare.com, marty.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.194.206

NS records: keira.ns.cloudflare.com, marty.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coolmailer.workers.dev (unsigned zone)

⏱️ Timing

Total: 65ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.153.232, 104.21.4.55`
AAAA	2	`2606:4700:3036::ac43:99e8, 2606:4700:3035::6815:437`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

nl.coolmailer.workers.dev has four IP addresses: 104.21.4.55, 172.67.153.232, 2606:4700:3035::6815:437 and 2606:4700:3036::ac43:99e8.

humanbirdwings.net, lvrjstats.com, logivery.cloud plus two other host names have IP numbers in common with nl.coolmailer.workers.dev.