`nl.coolmailer.workers.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:437^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:99e8^{🇺🇸 Cloudflare2606:4700:3035::/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	104.21.4.55, 172.67.153.232
		IPv6	2606:4700:3031::6815:437, 2606:4700:3035::ac43:99e8

`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=2396919869

Same first word

nl.s3.amazonaws.com

nl.uy

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

nl.ac.th

nl.kiev.ua

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

nl.ph

nl.gs

nl.edu

nl

nl.tv

nl.kz

nl.blogspot.com

nl.gl

nl.casino

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

nl.co.rs

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

nl.kg

nl.go.kr

nl.cl

nl.vanguard

nl.am

nl.eu.org

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.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

nl.su

nl.global.prod.fastly.net

nl.uz

nl.co.uk

nl.com.ua

nl.ws

nl.no

nl.net

nl.ht

nl.co.za

nl.gy

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.dev

nl.org

nl.cm

nl.com

nl.tc

nl.co.kr

nl.com.br

nl.ae

nl.ms

nl.tn

nl.hockey

nl.solutions

nl.ma

nl.nu

nl.cc

Similar names

ln.cn

ln.cz

ln.arq.br

ln.no

ln.wtf

ln.md

ln.ca

ln.com.pl

ln.ru

ln.lt

ln.cc

ln.gd

ln.co.kr

ln.com

ln.fi

ln.cl

ln.tj

ln.co.za

ln.ac.th

ln.la

ln.com.es

ln.business

ln.am

ln.io

ln.vc

ln.be

ln.lv

ln.net

ln.to

ln.nl

ln.lu

ln.hu

ln.dk

ln.eu

ln.ua

ln.edu.hk

ln.de

ln.exchange

ln.hk

ln.vg

ln.kz

ln.org

DNS History

4 records (4 active, 0 former)

●A104.21.4.552026-03-11 → 2026-03-25 · 2 obs

● 2026-03-11 00:55:02
● 2026-03-25 02:04:42

●A172.67.153.2322026-03-11 → 2026-03-25 · 2 obs

● 2026-03-11 00:55:02
● 2026-03-25 02:04:42

●A2606:4700:3031::6815:4372026-03-11 → 2026-03-25 · 2 obs

● 2026-03-11 00:55:02
● 2026-03-25 02:04:42

●A2606:4700:3035::ac43:99e82026-03-11 → 2026-03-25 · 2 obs

● 2026-03-11 00:55:02
● 2026-03-25 02:04:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com...	-
workers.dev	clyde.ns.cloudflare.com, sofia.ns.cloudflare.com	-
coolmailer.workers.dev	keira.ns.cloudflare.com, marty.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.206

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 1700ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.153.232, 104.21.4.55`
AAAA	2	`2606:4700:3035::ac43:99e8, 2606:4700:3031::6815:437`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

IP Addresses

nl.coolmailer.workers.dev points to four IP numbers: 2606:4700:3031::6815:437, 2606:4700:3035::ac43:99e8, 104.21.4.55 and 172.67.153.232.

Other host names, for instance lvrjstats.com, logivery.cloud, sokmil.cn, www.spaid.com and bot.wash.0644.ru share IP numbers with nl.coolmailer.workers.dev.

nl.coolmailer.workers.dev - robtex.com