`dev-schoolnexus.se`

DNSSEC	🔒 Signed (DS record present)
A	87.106.190.142^{🇩🇪 IONOS-AS87.106.0.0/16 IONOS-PA-5}
		PTR	`dev-schoolnexus.se`
NS	`shades13.rzone.de` ⭐
		A	2607:f1c0:fe:53:185:132:34:140^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`shades13.rzone.de`
		A	185.132.34.140^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`shades13.rzone.de`
NS	`docks17.rzone.de`
		A	2001:8d8:fe:53:5747:2a74:d:17^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`docks17.rzone.de`
		A	217.160.80.144^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`docks17.rzone.de`
MX	`smtp.rzone.de` ⭐
		A	2a01:238:20a:202:50f0::2097^{🇩🇪 STRATO2a01:238:20a::/48 Strato AG}
			PTR	`smtp.rzone.de`
		A	81.169.145.98^{🇩🇪 STRATO81.169.144.0/22 AG}
			PTR	`smtp.rzone.de`
TXT	`v=spf1 ip4:87.106.190.142 ~all`
SOA	`shades13.rzone.de`hostmaster@strato-rz.de 2026-02-27 #31

`se`

	DNSSEC	🔒 Signed (DS record present)
	NS	`catcher-in-the-rye.nic.se` ⭐
	NS	`a.ns.se`
	NS	`b.ns.se`
	NS	`c.ns.se`
	NS	`f.ns.se`
	NS	`g.ns.se`
	NS	`i.ns.se`
	NS	`m.ns.se`
	NS	`x.ns.se`
	NS	`y.ns.se`
	NS	`z.ns.se`
	TXT	`id:dd09807f-7d78-4335-8ca4-562617595b0a`
	TXT	`SE zone update: 2026-04-18 17:26:51 +0000 (EPOCH 1776533211) (auto)`
	SOA	`catcher-in-the-rye.nic.se`registry-default@nic.se serial=1776533620

🔒 HSTS Preload (+subdomains)

Same first word

dev-schoolnexus.se

DNS History

4 records (4 active, 0 former)

●NSdocks17.rzone.de2026-04-13 → 2026-04-18 · 2 obs

● 2026-04-13 06:24:56
● 2026-04-18 18:15:10

●NSshades13.rzone.de2026-04-13 → 2026-04-18 · 2 obs

● 2026-04-13 06:24:56
● 2026-04-18 18:15:10

●MXsmtp.rzone.de2026-04-13 → 2026-04-18 · 2 obs

● 2026-04-13 06:24:56
● 2026-04-18 18:15:10

●A87.106.190.1422026-04-13 → 2026-04-18 · 2 obs

● 2026-04-13 06:24:56
● 2026-04-18 18:15:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
se	i.ns.se, a.ns.se, z.ns.se, b.ns.se...	-
dev-schoolnexus.se	docks17.rzone.de, shades13.rzone.de	-

✅ Authoritative Response

Server:185.132.34.140

NS records: docks17.rzone.de, shades13.rzone.de

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 2890ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`87.106.190.142`
NS	2	`shades13.rzone.de, docks17.rzone.de`
MX	1	`smtp.rzone.de (pri: 5)`
TXT	1	`v=spf1 ip4:87.106.190.142 ~all`
SOA	1	`shades13.rzone.de hostmaster.strato-rz.d`

Analysis

IP Addresses

dev-schoolnexus.se points to a single IP: 87.106.190.142.

Name Servers

Two name servers docks17.rzone.de and shades13.rzone.de handle delegation for dev-schoolnexus.se.

dev-schoolnexus.se uses the same name server setup as other domains, for example e-findo.com, ihre-mittelstandsberater.com, klein-besen-buersten-shop.de, ident-c.com and goefus.de.

dev-schoolnexus.se partially shares name servers with other domains; examples include b-arch.de, net-pictures.de, annabatterie.de, aseag.tv and ken-ken-privat.de.

These name servers are commonly used alongside shades08.rzone.de, shades19.rzone.de, shades20.rzone.de, docks19.rzone.de, docks10.rzone.de, docks18.rzone.de, shades18.rzone.de, shades04.rzone.de, docks07.rzone.de and docks14.rzone.de.

Host names with two IP numbers:

docks17.rzone.de points to: 2001:8d8:fe:53:5747:2a74:d:17 and 217.160.80.144

shades13.rzone.de points to: 2607:f1c0:fe:53:185:132:34:140 and 185.132.34.140

Mail Servers

dev-schoolnexus.se is handled by a single mail server, smtp.rzone.de.

dev-schoolnexus.se has the same mail server setup as other domains, including wincaisse.fr, tougne.fr, mail2.classicfootballstickers.co.uk, mail.ronbarten.com and mywebdesigner.fr.

Host smtp.rzone.de resolves to two IPs: 2a01:238:20a:202:50f0::2097 and 81.169.145.98.

dev-schoolnexus.se - robtex.com