sfelder.io - robtex.com
sfelder.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a0f:ac85:1048:b0b7:89:34:125:1771🇨🇭 AS_VADIAN22a0f:ac85::/32 | ||||||
| A | 89.34.125.177🇩🇪 AS_VADIAN289.34.125.0/24 | ||||||
| NS | ns1.domains.ch ⭐ | ||||||
| A | 2a0f:ac85:1048:b8bf:89:34:125:1871🇨🇭 AS_VADIAN22a0f:ac85::/32 | ||||||
| A | 89.34.125.187🇩🇪 AS_VADIAN289.34.125.0/24 | ||||||
| PTR | fw.domains.ch | ||||||
| NS | ns2.domains.ch | ||||||
| A | 2a0f:ac85:5048:b8bf:89:150:55:1871🇨🇭 AS_VADIAN22a0f:ac85::/32 | ||||||
| A | 89.150.55.187🇮🇹 AS_VADIAN289.150.55.0/24 | ||||||
| PTR | ns2.domains.ch | ||||||
| MX | mail.protonmail.ch ⭐ | ||||||
| A | 176.119.200.128🇨🇭 Proton176.119.200.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| A | 185.70.42.128🇨🇭 Proton185.70.42.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| A | 185.205.70.128🇫🇷 Proton185.205.70.0/24 | ||||||
| PTR | mail.protonmail.ch | ||||||
| MX | mailsec.protonmail.ch(20) | ||||||
| A | 176.119.200.129🇨🇭 Proton176.119.200.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| A | 185.70.42.129🇨🇭 Proton185.70.42.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| A | 185.205.70.129🇫🇷 Proton185.205.70.0/24 | ||||||
| PTR | mailsec.protonmail.ch | ||||||
| TXT | protonmail-verification=3669f3dfea3f95a9d5b21f9ad735fa53fda7e606 | ||||||
| TXT | v=spf1 include:_spf.protonmail.ch mx ~all | ||||||
| SOA | ns1.domains.chhostmaster@vadian.net 2026-04-06 #3 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1778796392 | ||||||
Same first word
Similar names
DNS History
7 records (6 active, 1 former)
●NSns1.domains.ch2021-08-27 → 2026-05-14 · 2 obs
● 2026-05-14 22:28:28
●NSns2.domains.ch2021-08-27 → 2026-05-14 · 2 obs
● 2026-05-14 22:28:28
●MXmail.protonmail.ch2021-08-27 → 2026-05-14 · 2 obs
● 2026-05-14 22:28:28
●MXmailsec.protonmail.ch2021-08-27 → 2026-05-14 · 2 obs
● 2026-05-14 22:28:28
○A194.230.72.2062021-08-27 → 2021-08-27 · 3 obs
○ 2026-04-01 15:47:54
○ 2026-05-14 22:28:28
●A2a0f:ac85:1048:b0b7:89:34:125:17712026-04-01 → 2026-05-14 · 3 obs
● 2026-04-01 15:47:54
● 2026-05-14 22:28:28
●A89.34.125.1772026-04-01 → 2026-05-14 · 3 obs
● 2026-04-01 15:47:54
● 2026-05-14 22:28:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, b0.nic.io, a2.nic.io, c0.nic.io | - |
| sfelder.io | ns2.domains.ch, ns1.domains.ch | - |
✅ Authoritative Response
Server:89.34.125.187
NS records: ns2.domains.ch, ns1.domains.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sfelder.io (unsigned zone)
⏱️ Timing
Total: 847ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 89.34.125.177 |
| AAAA | 1 | 2a0f:ac85:1048:b0b7:89:34:125:1771 |
| NS | 2 | ns2.domains.ch, ns1.domains.ch |
| MX | 2 | mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20) |
| TXT | 2 | protonmail-verification=3669f3dfea3f95a9, v=spf1 include:_spf.protonmail.ch mx ~al |
| SOA | 1 | ns1.domains.ch hostmaster.vadian.net |
Analysis
IP Addresses
sfelder.io resolves to two IP numbers: 2a0f:ac85:1048:b0b7:89:34:125:1771 and 89.34.125.177.
other host names including mail.solar-panel.ch, koerperpflege.ch, mattmann.ch, bossong.us and sdc-valuechains.ch share IP numbers with sfelder.io.
Name Servers
sfelder.io is delegated to two name servers ns1.domains.ch and ns2.domains.ch.
sfelder.io shares the same name server setup as other domains, for instance microcut.mobi, prochetmoyen-orient.ch, microwaterjet-f4.ch, smartsolar.ch and druck4you.ch.
sfelder.io at least partially shares name servers with other domains, for instance oncomedical.com, luni.ch, yale.im, easy-bus.ch and easywork.ch.
Host names with two IP numbers:
The host name ns1.domains.ch points to 2a0f:ac85:1048:b8bf:89:34:125:1871 and 89.34.125.187; the host name ns2.domains.ch points to 2a0f:ac85:5048:b8bf:89:150:55:1871 and 89.150.55.187.
Mail Servers
Two mail servers handle sfelder.io: mail.protonmail.ch and mailsec.protonmail.ch.
sfelder.io shares the same mail server setup as other domains, for instance kleebz.com, gravitylol.com, shefa.ca, mintme.money and jemnice.cz.
sfelder.io shares some mail servers with other domains, at least partially, for instance maop.co, clareswift.co.uk, ku3.com, koplin.co and xylo.ch.
Host names with three IPs:
mail.protonmail.ch points to 176.119.200.128, 185.70.42.128 and 185.205.70.128.
mailsec.protonmail.ch points to 176.119.200.129, 185.70.42.129 and 185.205.70.129.