`exercise-testing.com`

DNSSEC	⚠️ Not signed
A	81.19.154.98^{🇦🇹 IONOS-AS81.19.144.0/20 World4You.com}
		PTR	`redirect01.world4you.com`
NS	`ns1.world4you.at` ⭐
		A	2607:f1c0:fe:53:185:132:32:253^{🇺🇸 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	`ns1.world4you.at`
		A	185.132.32.253^{🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)}
			PTR	`ns1.world4you.at`
NS	`ns2.world4you.at`
		A	2001:8d8:fe:53:217:160:82:253^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns2.world4you.at`
		A	217.160.82.253^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns2.world4you.at`
MX	`mail.exercise-testing.com` ⭐
		A	81.19.154.99^{🇦🇹 IONOS-AS81.19.144.0/20 World4You.com}
			PTR	`mwl01.world4you.com`
SOA	`ns1.world4you.at`hostmaster@world4you.com serial=1

`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=1771291435

Subdomains

mail.exercise-testing.com

Same first word

exercise-testing.com

DNS History

8 records (4 active, 4 former)

○NSns-1300.awsdns-34.org2018-07-20 → 2018-07-20 · 3 obs

● 2018-07-20 12:30:40
○ 2026-03-19 13:41:20
○ 2026-03-22 17:52:52

○NSns-1665.awsdns-16.co.uk2018-07-20 → 2018-07-20 · 3 obs

● 2018-07-20 12:30:40
○ 2026-03-19 13:41:20
○ 2026-03-22 17:52:52

○NSns-185.awsdns-23.com2018-07-20 → 2018-07-20 · 3 obs

● 2018-07-20 12:30:40
○ 2026-03-19 13:41:20
○ 2026-03-22 17:52:52

○NSns-735.awsdns-27.net2018-07-20 → 2018-07-20 · 3 obs

● 2018-07-20 12:30:40
○ 2026-03-19 13:41:20
○ 2026-03-22 17:52:52

●NSns1.world4you.at2026-03-19 → 2026-03-22 · 3 obs

○ 2018-07-20 12:30:40
● 2026-03-19 13:41:20
● 2026-03-22 17:52:52

●NSns2.world4you.at2026-03-19 → 2026-03-22 · 3 obs

○ 2018-07-20 12:30:40
● 2026-03-19 13:41:20
● 2026-03-22 17:52:52

●MXmail.exercise-testing.com2026-03-19 → 2026-03-22 · 2 obs

● 2026-03-19 13:41:20
● 2026-03-22 17:52:52

●A81.19.154.982026-03-19 → 2026-03-22 · 2 obs

● 2026-03-19 13:41:20
● 2026-03-22 17:52:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net...	-
exercise-testing.com	ns1.world4you.at, ns2.world4you.at	-

✅ Authoritative Response

Server: 217.160.82.253

NS records: ns1.world4you.at, ns2.world4you.at

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for exercise-testing.com (unsigned zone)

⏱️ Timing

Total: 443ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.19.154.98`
NS	2	`ns1.world4you.at, ns2.world4you.at`
MX	1	`mail.exercise-testing.com (pri: 10)`
SOA	1	`ns1.world4you.at hostmaster.world4you.co`

Analysis

Hierarchy

The parent of mail.exercise-testing.com is exercise-testing.com.

IP Addresses

exercise-testing.com points to IP number: 81.19.154.98.

Other host names such as phigum.at, holzbaukonzept.com, btc-wetten.com, slabtrack.at and www.truckcentersued.at share IPs with exercise-testing.com.

Name Servers

exercise-testing.com is delegated to two name servers: ns1.world4you.at and ns2.world4you.at.

exercise-testing.com shares the same name server setup as alpinfra.com, h2v.at, maunt.at, fronka.com and autopflege-windhager.at.

Host names with two IP numbers: ns1.world4you.at points to: 2607:f1c0:fe:53:185:132:32:253 and 185.132.32.253; ns2.world4you.at points to: 2001:8d8:fe:53:217:160:82:253 and 217.160.82.253.

Mail Servers

exercise-testing.com is handled by a single mail server, mail.exercise-testing.com.

mail.exercise-testing.com points to a single IP: 81.19.154.99.

exercise-testing.com - robtex.com