lean-stack.de - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

lean-stack.de

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:93f7🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:47b4🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.180Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.147.247🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkeira.ns.cloudflare.com ⭐
A2606:4700:50::a29f:26ce🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeira.ns.cloudflare.com
A2803:f800:50::6ca2:c2ce🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkeira.ns.cloudflare.com
A2a06:98c1:50::ac40:22ce🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkeira.ns.cloudflare.com
A108.162.194.206🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeira.ns.cloudflare.com
A162.159.38.206Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeira.ns.cloudflare.com
A172.64.34.206🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkeira.ns.cloudflare.com
NSmike.ns.cloudflare.com
A2606:4700:58::a29f:2c3f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmike.ns.cloudflare.com
A2803:f800:50::6ca2:c33f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmike.ns.cloudflare.com
A2a06:98c1:50::ac40:233f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmike.ns.cloudflare.com
A108.162.195.63🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmike.ns.cloudflare.com
A162.159.44.63Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmike.ns.cloudflare.com
A172.64.35.63🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmike.ns.cloudflare.com
MXmail.lean-server.de ⭐
A2a01:4f9:4b:1607::2🇩🇪 Hetzner2a01:4f9::/32 HETZNER-IPv6-BLK
PTRmail.lean-server.de
A135.181.78.56🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC
PTRmail.lean-server.de
TXTv=spf1 mx a -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.180, 172.67.147.247
IPv6 hints2606:4700:3030::ac43:93f7, 2606:4700:3036::6815:47b4
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=126, name=cloudflare-ech.com
SOAkeira.ns.cloudflare.comdns@cloudflare.com serial=2417168452

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1791880808

Previously MX for

muggefug.de
www.muggefug.de
lean-stack.de

Same first word

lean-stack.now.sh
lean-stack.io
lean-stack.github.io
lean-stack.rocks
lean-stack.vercel.app
lean-stack.js.org
lean-stack.de
lean-stack.workers.dev
lean-stack.com

Similar names

stack-lane.com

Previous names

lean-scm.de
lean-scope.de
lean-security.de
lean-selling.de
lean-server.de
lean-service-institute.de
lean-service-management.de
lean-service-system.de
lean-services.de
lean-shop.de
lean-sigma.de
lean-six-sigma-consulting.de
lean-six-sigma.de
lean-sixsigma.de
lean-smarter.de
lean-software-factory.de
lean-solar.de
lean-solution.de
lean-solutions.de
lean-spirit.de

Next names

lean-staging.de
lean-stammtisch.de
lean-start.de
lean-startup.de
lean-strategy.de
lean-studio.de
lean-suite.de
lean-support.de
lean-system.de
lean-systems.de
lean-team.de
lean-tek.de
lean-tex-gmbh.de
lean-tex.de
lean-thinking.de
lean-toolbox.de
lean-tools.de
lean-tour.de
lean-tpm.de
lean-trainer.de

DNS History

27 records (7 active, 20 former)

20162017201820192020202120222023202420252026NSkeira.ns.cloudflare.commike.ns.cloudflare.comhelium.ns.hetzner.dehydrogen.ns.hetzner.comns.namespace4you.dens2.namespace4you.deoxygen.ns.hetzner.comMXmail.lean-server.delean-stack.demail.cb-server.euA104.21.71.180172.67.147.2472606:4700:3030::ac43:93f72606:4700:3036::6815:47b4135.181.78.56188.114.96.0188.114.96.4188.114.97.0188.114.97.42606:4700:3031::ac43:93f72606:4700:3037::6815:47b42a06:98c1:3120::2a06:98c1:3120::42a06:98c1:3121::2a06:98c1:3121::481.169.205.5781.169.250.88
○NShelium.ns.hetzner.de2026-02-25 → 2026-03-06 · 5 obs
○ 2016-09-23 03:36:30
● 2026-02-25 00:16:32
● 2026-03-06 20:20:52
○ 2026-03-19 04:05:50
○ 2026-10-13 08:46:04
○NShydrogen.ns.hetzner.com2026-02-25 → 2026-03-06 · 5 obs
○ 2016-09-23 03:36:30
● 2026-02-25 00:16:32
● 2026-03-06 20:20:52
○ 2026-03-19 04:05:50
○ 2026-10-13 08:46:04
●NSkeira.ns.cloudflare.com2026-03-19 → 2026-10-13 · 3 obs
○ 2026-03-06 20:20:52
● 2026-03-19 04:05:50
● 2026-10-13 08:46:04
●NSmike.ns.cloudflare.com2026-03-19 → 2026-10-13 · 3 obs
○ 2026-03-06 20:20:52
● 2026-03-19 04:05:50
● 2026-10-13 08:46:04
○NSns.namespace4you.de2015-08-22 → 2016-09-23 · 4 obs
● 2015-08-22 12:12:54
● 2016-09-23 03:36:30
○ 2026-02-25 00:16:32
○ 2026-10-13 08:46:04
○NSns2.namespace4you.de2015-08-22 → 2016-09-23 · 4 obs
● 2015-08-22 12:12:54
● 2016-09-23 03:36:30
○ 2026-02-25 00:16:32
○ 2026-10-13 08:46:04
○NSoxygen.ns.hetzner.com2026-02-25 → 2026-03-06 · 5 obs
○ 2016-09-23 03:36:30
● 2026-02-25 00:16:32
● 2026-03-06 20:20:52
○ 2026-03-19 04:05:50
○ 2026-10-13 08:46:04
○MXlean-stack.de2015-08-22 → 2016-01-01 · 4 obs
● 2015-08-22 12:12:54
● 2016-01-01 01:00:52
○ 2016-03-31 02:29:06
○ 2026-10-13 08:46:04
○MXmail.cb-server.eu2016-03-31 → 2016-09-23 · 5 obs
○ 2016-01-01 01:00:52
● 2016-03-31 02:29:06
● 2016-09-23 03:36:30
○ 2026-02-25 00:16:32
○ 2026-10-13 08:46:04
●MXmail.lean-server.de2026-02-25 → 2026-10-13 · 3 obs
○ 2016-09-23 03:36:30
● 2026-02-25 00:16:32
● 2026-10-13 08:46:04
●A104.21.71.1802026-03-23 → 2026-10-13 · 10 obs
○ 2026-03-19 04:05:50
● 2026-03-23 14:55:02
● 2026-06-12 16:22:58
○ 2026-06-19 03:24:52
● 2026-07-09 18:26:10
○ 2026-08-31 18:47:34
● 2026-09-11 00:16:00
○ 2026-10-02 19:31:14
● 2026-10-13 08:46:00
● 2026-10-13 08:46:04
○A135.181.78.562026-02-25 → 2026-03-06 · 5 obs
○ 2016-09-23 03:36:30
● 2026-02-25 00:16:32
● 2026-03-06 20:20:52
○ 2026-03-19 04:05:50
○ 2026-10-13 08:46:04
●A172.67.147.2472026-03-23 → 2026-10-13 · 10 obs
○ 2026-03-19 04:05:50
● 2026-03-23 14:55:02
● 2026-06-12 16:22:58
○ 2026-06-19 03:24:52
● 2026-07-09 18:26:10
○ 2026-08-31 18:47:34
● 2026-09-11 00:16:00
○ 2026-10-02 19:31:14
● 2026-10-13 08:46:00
● 2026-10-13 08:46:04
○A188.114.96.02026-03-19 → 2026-08-31 · 9 obs
○ 2026-03-06 20:20:52
● 2026-03-19 04:05:50
○ 2026-03-23 14:55:02
○ 2026-06-12 16:22:58
● 2026-06-19 03:24:52
○ 2026-07-09 18:26:10
● 2026-08-31 18:47:34
○ 2026-09-11 00:16:00
○ 2026-10-13 08:46:04
○A188.114.96.42026-10-02 → 2026-10-02 · 4 obs
○ 2026-09-11 00:16:00
● 2026-10-02 19:31:14
○ 2026-10-13 08:46:00
○ 2026-10-13 08:46:04
○A188.114.97.02026-03-19 → 2026-08-31 · 9 obs
○ 2026-03-06 20:20:52
● 2026-03-19 04:05:50
○ 2026-03-23 14:55:02
○ 2026-06-12 16:22:58
● 2026-06-19 03:24:52
○ 2026-07-09 18:26:10
● 2026-08-31 18:47:34
○ 2026-09-11 00:16:00
○ 2026-10-13 08:46:04
○A188.114.97.42026-10-02 → 2026-10-02 · 4 obs
○ 2026-09-11 00:16:00
● 2026-10-02 19:31:14
○ 2026-10-13 08:46:00
○ 2026-10-13 08:46:04
●A2606:4700:3030::ac43:93f72026-07-09 → 2026-10-13 · 7 obs
○ 2026-06-19 03:24:52
● 2026-07-09 18:26:10
○ 2026-08-31 18:47:34
● 2026-09-11 00:16:00
○ 2026-10-02 19:31:14
● 2026-10-13 08:46:00
● 2026-10-13 08:46:04
○A2606:4700:3031::ac43:93f72026-03-23 → 2026-06-12 · 5 obs
○ 2026-03-19 04:05:50
● 2026-03-23 14:55:02
● 2026-06-12 16:22:58
○ 2026-06-19 03:24:52
○ 2026-10-13 08:46:04
●A2606:4700:3036::6815:47b42026-07-09 → 2026-10-13 · 7 obs
○ 2026-06-19 03:24:52
● 2026-07-09 18:26:10
○ 2026-08-31 18:47:34
● 2026-09-11 00:16:00
○ 2026-10-02 19:31:14
● 2026-10-13 08:46:00
● 2026-10-13 08:46:04
○A2606:4700:3037::6815:47b42026-03-23 → 2026-06-12 · 5 obs
○ 2026-03-19 04:05:50
● 2026-03-23 14:55:02
● 2026-06-12 16:22:58
○ 2026-06-19 03:24:52
○ 2026-10-13 08:46:04
○A2a06:98c1:3120::2026-03-19 → 2026-08-31 · 9 obs
○ 2026-03-06 20:20:52
● 2026-03-19 04:05:50
○ 2026-03-23 14:55:02
○ 2026-06-12 16:22:58
● 2026-06-19 03:24:52
○ 2026-07-09 18:26:10
● 2026-08-31 18:47:34
○ 2026-09-11 00:16:00
○ 2026-10-13 08:46:04
○A2a06:98c1:3120::42026-10-02 → 2026-10-02 · 4 obs
○ 2026-09-11 00:16:00
● 2026-10-02 19:31:14
○ 2026-10-13 08:46:00
○ 2026-10-13 08:46:04
○A2a06:98c1:3121::2026-03-19 → 2026-08-31 · 9 obs
○ 2026-03-06 20:20:52
● 2026-03-19 04:05:50
○ 2026-03-23 14:55:02
○ 2026-06-12 16:22:58
● 2026-06-19 03:24:52
○ 2026-07-09 18:26:10
● 2026-08-31 18:47:34
○ 2026-09-11 00:16:00
○ 2026-10-13 08:46:04
○A2a06:98c1:3121::42026-10-02 → 2026-10-02 · 4 obs
○ 2026-09-11 00:16:00
● 2026-10-02 19:31:14
○ 2026-10-13 08:46:00
○ 2026-10-13 08:46:04
○A81.169.205.572016-03-31 → 2016-09-23 · 5 obs
○ 2016-01-01 01:00:52
● 2016-03-31 02:29:06
● 2016-09-23 03:36:30
○ 2026-02-25 00:16:32
○ 2026-10-13 08:46:04
○A81.169.250.882015-08-22 → 2016-01-01 · 4 obs
● 2015-08-22 12:12:54
● 2016-01-01 01:00:52
○ 2016-03-31 02:29:06
○ 2026-10-13 08:46:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
lean-stack.dekeira.ns.cloudflare.com, mike.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.206

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for lean-stack.de (unsigned zone)

⏱️ Timing

Total: 1025ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.71.180, 172.67.147.247
AAAA22606:4700:3036::6815:47b4, 2606:4700:3030::ac43:93f7
NS2keira.ns.cloudflare.com, mike.ns.cloudflare.com
MX1mail.lean-server.de (pri: 10)
TXT1v=spf1 mx a -all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1keira.ns.cloudflare.com dns.cloudflare.c

Analysis

IP Addresses

lean-stack.de points to the four IP addresses 104.21.71.180, 172.67.147.247, 2606:4700:3030::ac43:93f7 and 2606:4700:3036::6815:47b4.

Among the host names that share IP numbers with lean-stack.de are reflexionx.com, planetecstatic.shop, 49114903.xyz and two others.

Name Servers

DNS delegation for lean-stack.de points to two name servers: keira.ns.cloudflare.com and mike.ns.cloudflare.com.

lean-stack.de has the same name server delegation as a number of other domains, such as minghui031122.workers.dev, thechangewebsite.com, fsjojima.workers.dev and two more.

The name servers of lean-stack.de overlap at least partially with those of other domains — among them mina123-slotpearl.pages.dev, tvcoavol.workers.dev, math-sa2.pages.dev and two more.

The name servers treasure.ns.cloudflare.com, skip.ns.cloudflare.com and ollie.ns.cloudflare.com are commonly seen alongside these name servers.

Host names resolving to 6 IP numbers:

keira.ns.cloudflare.com has IP addresses 108.162.194.206, 162.159.38.206 and 172.64.34.206, plus 3 other.

mike.ns.cloudflare.com has IP addresses 108.162.195.63, 162.159.44.63 and 172.64.35.63, plus 3 other.

Mail Servers

lean-stack.de routes its mail through a single mail server, mail.lean-server.de.

lean-stack.de has the same mail server arrangement as a number of other domains, for example runde.tips, muggefug.de, haus23.net and two more.

mail.lean-server.de resolves to two IP numbers — 135.181.78.56 and 2a01:4f9:4b:1607::2.