`researchworks.de`

DNSSEC	⚠️ Not signed
A	91.195.241.232^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
		PTR	`ip-91-195-241-232.defastlink.net`
NS	`sl1.sedo.com` ⭐
		A	91.195.240.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
			PTR	`ip-91-195-240-173.defastlink.net`
NS	`sl2.sedo.com`
		A	91.195.241.173^{🇩🇪 SEDO91.195.240.0/23 -NET-PI}
			PTR	`ip-91-195-241-173.defastlink.net`
MX	`localhost` ⭐ 🔒
		A	`::1`
		A	127.0.0.1
TXT	`v=spf1 -all`
SOA	`sl1.sedo.com`hostmaster@sedo.de 2018-05-16 #1

`de`

	DNSSEC	🔒 Signed (DS record present)
	NS	`f.nic.de` ⭐
	NS	`a.nic.de`
	NS	`l.de.net` ⚠️ Not in parent delegation
	NS	`n.de.net` ⚠️ Not in parent delegation
	NS	`s.de.net` ⚠️ Not in parent delegation
	NS	`z.nic.de`
	SOA	`f.nic.de`dns-operations@denic.de serial=1773553752

Same first word

researchworks.co.jp

researchworks.de

researchworks.com

DNS History

10 records (4 active, 6 former)

○NSns49.1und1.de2015-07-12 → 2017-03-26 · 3 obs

● 2015-07-12 11:08:46
● 2017-03-26 09:25:42
○ 2026-03-24 05:29:14

○NSns50.1und1.de2015-07-12 → 2017-03-26 · 3 obs

● 2015-07-12 11:08:46
● 2017-03-26 09:25:42
○ 2026-03-24 05:29:14

●NSsl1.sedo.com2026-03-24 → 2026-03-24 · 2 obs

○ 2017-03-26 09:25:42
● 2026-03-24 05:29:14

●NSsl2.sedo.com2026-03-24 → 2026-03-24 · 2 obs

○ 2017-03-26 09:25:42
● 2026-03-24 05:29:14

●MXlocalhost2026-03-24 → 2026-03-24 · 2 obs

○ 2017-03-26 09:25:42
● 2026-03-24 05:29:14

○MXmx00.kundenserver.de2015-07-12 → 2017-03-26 · 3 obs

● 2015-07-12 11:08:46
● 2017-03-26 09:25:42
○ 2026-03-24 05:29:14

○MXmx01.kundenserver.de2015-07-12 → 2017-03-26 · 3 obs

● 2015-07-12 11:08:46
● 2017-03-26 09:25:42
○ 2026-03-24 05:29:14

○A217.160.223.102016-07-17 → 2017-03-26 · 4 obs

○ 2016-04-01 17:14:02
● 2016-07-17 15:25:42
● 2017-03-26 09:25:42
○ 2026-03-24 05:29:14

○A82.165.117.782015-07-12 → 2016-04-01 · 4 obs

● 2015-07-12 11:08:46
● 2016-04-01 17:14:02
○ 2016-07-17 15:25:42
○ 2026-03-24 05:29:14

●A91.195.241.2322026-03-24 → 2026-03-24 · 2 obs

○ 2017-03-26 09:25:42
● 2026-03-24 05:29:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
de	a.nic.de, f.nic.de, z.nic.de	-
researchworks.de	sl1.sedo.com, sl2.sedo.com	-

✅ Authoritative Response

Server:91.195.241.173

NS records: sl1.sedo.com, sl2.sedo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for researchworks.de (unsigned zone)

⏱️ Timing

Total: 781ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.195.241.232`
NS	2	`sl2.sedo.com, sl1.sedo.com`
MX	1	`localhost (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`sl1.sedo.com hostmaster.sedo.de`

Analysis

IP Addresses

researchworks.de resolves to one IP number: 91.195.241.232.

Other host names, for instance mr-auto.de, touristticket.de, (0x77616e6b)e.eu, eeshop.eu and rph.cache.ccdn.eu share IP numbers with researchworks.de.

Name Servers

researchworks.de's delegation uses two name servers: sl1.sedo.com and sl2.sedo.com.

researchworks.de uses the same name server setup as other domains, such as infogeorgia.com, starair.de, art-energy.de, www.gre44406ch.blogage.de and hosteria.eu.

Host names with a single IP address: sl1.sedo.com points to 91.195.240.173; sl2.sedo.com points to 91.195.241.173.

Mail Servers

A single mail server handles researchworks.de, localhost.

researchworks.de shares the same mail server setup as other domains, for instance oyyo.fr, mail.nrw.dansevideo.com, mail.oplaadpas.nl, onpremise.info and magotamariz.com.

The host name localhost resolves to two IP numbers: ::1 and 127.0.0.1.

researchworks.de - robtex.com