mail.schaefer-backtech.de - robtex.com

mail.schaefer-backtech.de

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:9c1e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:20e1🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.32.225Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.156.30🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.32.225, 172.67.156.30
IPv62606:4700:3033::ac43:9c1e, 2606:4700:3035::6815:20e1

schaefer-backtech.de

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:9c1e🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:20e1🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.32.225Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.156.30🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSadaline.ns.cloudflare.com ⭐
NSryan.ns.cloudflare.com
MXpx-10019.provitex-network.de ⭐
MXpx-10038.provitex-network.de ⭐
MXpx-10086.provitex-network.de ⭐
TXTv=spf1 mx ip4:94.249.139.136 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.32.225, 172.67.156.30
IPv62606:4700:3033::ac43:9c1e, 2606:4700:3035::6815:20e1
SOAadaline.ns.cloudflare.comdns@cloudflare.com serial=2397331724

Previously MX for

schaefer-backtech.de

Same first word

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mail.couchpotatofries.org
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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.32.225172.67.156.302606:4700:3033::ac43:9c1e2606:4700:3035::6815:20e194.249.139.155
●A104.21.32.2252026-03-31 → 2026-03-31 · 2 obs
○ 2016-07-02 14:30:22
● 2026-03-31 09:32:08
●A172.67.156.302026-03-31 → 2026-03-31 · 2 obs
○ 2016-07-02 14:30:22
● 2026-03-31 09:32:08
●A2606:4700:3033::ac43:9c1e2026-03-31 → 2026-03-31 · 2 obs
○ 2016-07-02 14:30:22
● 2026-03-31 09:32:08
●A2606:4700:3035::6815:20e12026-03-31 → 2026-03-31 · 2 obs
○ 2016-07-02 14:30:22
● 2026-03-31 09:32:08
○A94.249.139.1552015-07-11 → 2016-07-02 · 3 obs
● 2015-07-11 04:14:16
● 2016-07-02 14:30:22
○ 2026-03-31 09:32:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, z.nic.de, f.nic.de-
schaefer-backtech.deryan.ns.cloudflare.com, adaline.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.229

NS records: ryan.ns.cloudflare.com, adaline.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schaefer-backtech.de (unsigned zone)

⏱️ Timing

Total: 553ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.156.30, 104.21.32.225
AAAA22606:4700:3035::6815:20e1, 2606:4700:3033::ac43:9c1e
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.schaefer-backtech.de maps to four IP numbers: 2606:4700:3033::ac43:9c1e, 2606:4700:3035::6815:20e1, 104.21.32.225 and 172.67.156.30.

Other host names, for instance frizmedia.id, digiexpert.at, durhbvlfkhnln.store, www.studiolegalegargano.com and www.uae-study.com share IP numbers with mail.schaefer-backtech.de.