www.postmarkapp.net - robtex.com

www.postmarkapp.net

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:1504🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:c344🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.21.4Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.195.68🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.21.4, 172.67.195.68
IPv6 hints2606:4700:3032::6815:1504, 2606:4700:3032::ac43:c344
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=114, name=cloudflare-ech.com

postmarkapp.net

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:1504🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:c344🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.21.4Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.195.68🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSpeaches.ns.cloudflare.com ⭐
NSyichun.ns.cloudflare.com
MXroute1.mx.cloudflare.net ⭐
MXroute3.mx.cloudflare.net(67)
MXroute2.mx.cloudflare.net(91)
TXTv=spf1 include:_spf.mx.cloudflare.net ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.21.4, 172.67.195.68
IPv6 hints2606:4700:3032::6815:1504, 2606:4700:3032::ac43:c344
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=114, name=cloudflare-ech.com
SOApeaches.ns.cloudflare.comdns@cloudflare.com serial=2402942978
⚠️ On DNS blocklist: tif

Same first word

www.gov.bn
www.dnsalias.com
www.co.no
www.fan
www.is-a-player.com
www.hatenablog.com
www.gov.to
www.mmafan.biz
www.sg
www.vi
www.for-our.info
www.from-ut.com
www.wmflabs.org
www.httpbin.org
www.singles
www.elasticbeanstalk.com
www.my-wan.de
www.marine.ru
www.lib.md.us
www.is-a-rockstar.com
www.googlecode.com
www.lease
www.dyndns.org
www.express
www.serveftp.com
www.pinoko.jp
www.blogspot.co.id
www.getmyip.com
www.aero
www.tools
www.tienda
www.apartments
www.ws
www.gda.pl
www.outsystemscloud.com
www.wine
www.kz
www.nic.tj
www.game-server.cc
www.cern
www.limo
www.gets-it.net
www.gov.lk
www.is-uberleet.com
www.spb.ru
www.ap.gov.br
www.ax
www.osen.no
www.org.cn
www.gov.br
www.org.kg
www.hitra.no
www.com.hk
www.com.es
www.cy
www.api.gov.uk
www.fashionstore.jp
www.attorney
www.to.gov.br
www.is-a-chef.com
www.vang.no
www.bydgoszcz.pl
www.gallery
www.cz
www.cechire.com
www.ac.lk
www.shop.pl
www.porsgrunn.no
www.ac.nz
www.kristiansund.no
www.gov.co
www.credit
www.freemyip.com
www.golffan.us
www.versus.jp
www.meteorapp.com
www.pointto.us
www.mil.by
www.ac.za
www.likes-pie.com
www.stjordal.no
www.yandex
www.soundcast.me
www.fish
www.worse-than.tv
www.modalen.no
www.from-pa.com
www.edu.cn
www.hacca.jp
www.mlb
www.ge
www.withyoutube.com
www.modelscape.com
www.bergen.no
www.melbourne
www.xbox
www.games
www.webspace.rocks
www.wtf
www.me.uk

Similar names

www.ch
www.lierne.no
www.kapsi.fi
www.blogspot.ae
www.chowder.jp
www.js.org
www.wf
www.from-ok.com
www.gov.ls
www.blogspot.com.eg
www.ddns.net
www.blogspot.my
www.org.za
www.za.net
www.land
www.skiptvet.no
www.gi
www.gov.qa
www.is-very-good.org
www.secret.jp
www.codeberg.page
www.bialowieza.pl
www.fjell.no
www.ly
www.edu.az
www.webhop.org
www.lebork.pl
www.isa-geek.com
www.googleapis.com
www.mydns.jp
www.eu
www.equipment
www.123minsida.se
www.town
www.msk.su
www.homedns.org
www.pythonanywhere.com
www.lillesand.no
www.fem.jp
www.salon
www.barclays
www.ua
www.net.gy
www.ac.gov.br
www.boo.jp
www.mircloud.ru
www.abb
www.barclaycard
www.live-website.com
www.blogspot.hk
www.aetna
www.nieruchomosci.pl
www.time.no
www.university
www.sl
www.gov.bm
www.memorial
www.fo
www.eidfjord.no
www.org.uk
www.sc.gov.br
www.is-a-caterer.com
www.style
www.afl
www.shopselect.net
www.blogspot.co.il
www.donetsk.ua
www.cc
www.webhop.biz
www.mywire.org
www.sub.jp
www.de
www.hl.cn
www.gotdns.org
www.furniture
www.sx.cn
www.cloud-ip.biz
www.lomza.pl
www.(0x6c6f6c697461)punk.jp
www.com.de
www.bm
www.am
www.dk
www.malopolska.pl
www.software
www.com.sb
www.supply
www.jx.cn
www.homelinux.com
www.gob.do
www.pisz.pl
www.hopto.org
www.blogspot.co.za
www.0g0.jp
www.co.jp
www.bitbucket.io
www.bible
www.edu.tw
www.skype
www.directory

DNS History

4 records (4 active, 0 former)

A104.21.21.4172.67.195.682606:4700:3032::6815:15042606:4700:3032::ac43:c344
●A104.21.21.42026-05-01 → 2026-05-10 · 2 obs
● 2026-05-01 08:43:12
● 2026-05-10 02:18:44
●A172.67.195.682026-05-01 → 2026-05-10 · 2 obs
● 2026-05-01 08:43:12
● 2026-05-10 02:18:44
●A2606:4700:3032::6815:15042026-05-01 → 2026-05-10 · 2 obs
● 2026-05-01 08:43:12
● 2026-05-10 02:18:44
●A2606:4700:3032::ac43:c3442026-05-01 → 2026-05-10 · 2 obs
● 2026-05-01 08:43:12
● 2026-05-10 02:18:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netc.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net...-
postmarkapp.netyichun.ns.cloudflare.com, peaches.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.248

NS records: yichun.ns.cloudflare.com, peaches.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postmarkapp.net (unsigned zone)

⏱️ Timing

Total: 343ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.195.68, 104.21.21.4
AAAA22606:4700:3032::6815:1504, 2606:4700:3032::ac43:c344
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

www.postmarkapp.net points to four IP numbers: 2606:4700:3032::6815:1504, 2606:4700:3032::ac43:c344, 104.21.21.4 and 172.67.195.68.

Other host names, for instance caribedirect.com, ns2.fuett.mx, gamesuion.com, longdafu.cn and 445minipassoapassopararenovar3375v29.sbs share IP numbers with www.postmarkapp.net.