`spf4u.com`

DNSSEC	⚠️ Not signed
A	81.169.174.185^{🇩🇪 STRATO81.169.128.0/17 AG}
		PTR	`ursel501.sysprofit.com`
NS	`ns3.stratoserver.net` ⭐
		A	2607:f1c0:fe:53:185:132:34:159^{🇺🇸 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	`ns3.stratoserver.net`
		A	185.132.34.159^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns3.stratoserver.net`
NS	`ns4.stratoserver.net`
		A	2001:8d8:fe:53:5747:2a74:d:32^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns4.stratoserver.net`
		A	217.160.80.159^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns4.stratoserver.net`
SOA	`ns3.stratoserver.net`hostmaster@strato-rz.de 2020-05-14 #2

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774651467

Same first word

spf4u.com

Similar names

pfs4u.com

fps4u.nl

fps4u.com

DNS History

5 records (3 active, 2 former)

○NSns.serverkompetenz.de2015-08-18 → 2016-11-17 · 4 obs

● 2015-08-18 08:28:50
● 2016-11-17 04:35:40
○ 2026-03-07 07:03:54
○ 2026-03-27 23:14:14

○NSns2.serverkompetenz.de2015-08-18 → 2016-11-17 · 4 obs

● 2015-08-18 08:28:50
● 2016-11-17 04:35:40
○ 2026-03-07 07:03:54
○ 2026-03-27 23:14:14

●NSns3.stratoserver.net2026-03-07 → 2026-03-27 · 3 obs

○ 2016-11-17 04:35:40
● 2026-03-07 07:03:54
● 2026-03-27 23:14:14

●NSns4.stratoserver.net2026-03-07 → 2026-03-27 · 3 obs

○ 2016-11-17 04:35:40
● 2026-03-07 07:03:54
● 2026-03-27 23:14:14

●A81.169.174.1852015-08-18 → 2026-03-27 · 2 obs

● 2015-08-18 08:28:50
● 2026-03-27 23:14:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
spf4u.com	ns3.stratoserver.net, ns4.stratoserver.net	-

✅ Authoritative Response

Server:185.132.34.159

NS records: ns3.stratoserver.net, ns4.stratoserver.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for spf4u.com (unsigned zone)

⏱️ Timing

Total: 380ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.169.174.185`
NS	2	`ns3.stratoserver.net, ns4.stratoserver.net`
SOA	1	`ns3.stratoserver.net hostmaster.strato-r`

Analysis

IP Addresses

spf4u.com resolves to a single IP address: 81.169.174.185.

Other host names, such as ursel501.sysprofit.com and kumpelbier.de, share IP numbers with spf4u.com.

Name Servers

spf4u.com's delegation uses two name servers, ns3.stratoserver.net and ns4.stratoserver.net.

spf4u.com shares the same name server setup as other domains, for example heiligenhafen-vermietung.de, mino-shop.de, adelia-thomas.de, iwebgis.net and kreuzfahrten-und-weltreisen.at.

Host names with two IPs:

ns3.stratoserver.net points to: 2607:f1c0:fe:53:185:132:34:159 and 185.132.34.159

ns4.stratoserver.net points to: 2001:8d8:fe:53:5747:2a74:d:32 and 217.160.80.159

spf4u.com - robtex.com

spf4u.com

com