kgrothoff.org - robtex.com
kgrothoff.org
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1786544603 | ||||||
Same first word
kgrothoff.org |
DNS History
13 records (6 active, 7 former)
●MXmail.protonmail.ch2026-08-12 → 2026-08-12 · 2 obs
● 2026-08-12 14:37:08
●MXmailsec.protonmail.ch2026-08-12 → 2026-08-12 · 2 obs
● 2026-08-12 14:37:08
○MXsmtpin.rzone.de2015-07-23 → 2020-04-01 · 3 obs
● 2020-04-01 06:38:14
○ 2026-08-12 14:37:08
○A2.14.139.692016-02-26 → 2016-02-26 · 4 obs
● 2016-02-26 00:58:24
○ 2016-07-10 00:23:32
○ 2026-08-12 14:37:08
○A2a01:238:20a:202:1078::2015-07-23 → 2020-04-01 · 5 obs
○ 2015-11-22 06:35:22
○ 2017-03-19 06:55:00
● 2020-04-01 06:38:14
○ 2026-08-12 14:37:08
●A2a01:238:20a:202:1152::2026-08-12 → 2026-08-12 · 2 obs
● 2026-08-12 14:37:08
●A81.169.145.1522026-08-12 → 2026-08-12 · 2 obs
● 2026-08-12 14:37:08
○A81.169.145.782015-07-23 → 2020-04-01 · 5 obs
○ 2015-11-22 06:35:22
○ 2017-03-19 06:55:00
● 2020-04-01 06:38:14
○ 2026-08-12 14:37:08
○A86.253.40.2542016-07-10 → 2016-07-10 · 4 obs
● 2016-07-10 00:23:32
○ 2017-03-19 06:55:00
○ 2026-08-12 14:37:08
○A92.139.118.2362015-11-22 → 2015-11-22 · 4 obs
● 2015-11-22 06:35:22
○ 2016-02-26 00:58:24
○ 2026-08-12 14:37:08
○A92.167.220.1632017-03-19 → 2017-03-19 · 4 obs
● 2017-03-19 06:55:00
○ 2020-04-01 06:38:14
○ 2026-08-12 14:37:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| kgrothoff.org | docks19.rzone.de, shades16.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.146
NS records: docks19.rzone.de, shades16.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kgrothoff.org (unsigned zone)
⏱️ Timing
Total: 1847ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.169.145.152 |
| AAAA | 1 | 2a01:238:20a:202:1152:: |
| NS | 2 | docks19.rzone.de, shades16.rzone.de |
| MX | 2 | mail.protonmail.ch (pri: 10), mailsec.protonmail.ch (pri: 20) |
| TXT | 2 | v=spf1 include:_spf.protonmail.ch ~all, protonmail-verification=b270ec9ca26ba8ed |
| SOA | 1 | shades16.rzone.de hostmaster.strato-rz.d |
Analysis
IP Addresses
kgrothoff.org points to the IP addresses 81.169.145.152 and 2a01:238:20a:202:1152::
Two other host names, along with successful.education, waagendepot.de and stuckateurmeister-brandenburg.de, also share IP numbers with kgrothoff.org.
Name Servers
The NS records for kgrothoff.org delegate to docks19.rzone.de and shades16.rzone.de.
kgrothoff.org shares its NS records with other domains, for example 3dein.de, zellerzeitung.de, capoeiralessen.nl and two others.
There is at least partial name server overlap between kgrothoff.org and other domains — textline.de, kaufhaus-danielsmeier.de, laserzone.info and two more among them.
These name servers regularly appear alongside docks04.rzone.de, shades07.rzone.de, shades20.rzone.de and 7 other name servers in NS record sets.
docks19.rzone.de resolves to 217.160.80.146 and 2001:8d8:fe:53:5747:2a74:d:19. Likewise, shades16.rzone.de resolves to 185.132.34.143 and 2607:f1c0:fe:53:185:132:34:143 — two IP addresses apiece.
Mail Servers
kgrothoff.org is served by two mail servers, mail.protonmail.ch and mailsec.protonmail.ch.
Among the domains sharing a mail server setup with kgrothoff.org are inkitypress.com, iruka-system.co.jp, froejk.com and two others.
There is at least a partial MX overlap between kgrothoff.org and other domains, including aricoca.com, hrufinancials.com, franchois.net and two others.
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. Both hosts resolve to three IP numbers.