`classroomxl.com`

DNSSEC	⚠️ Not signed
A	2607:f1c0:100f:f000::25d^{🇺🇸 IONOS-AS2607:f1c0::/32 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
		PTR	`2607-f1c0-100f-f000-0000-0000-0000-025d.elastic-ssl.ui-r.com`
A	74.208.236.94^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
NS	`ns1057.ui-dns.org` ⭐
		A	2001:8d8:fe:53:0:d9a0:5339:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1057.ui-dns.org`
		A	217.160.83.57^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1057.ui-dns.org`
NS	`ns1026.ui-dns.biz`
		A	2001:8d8:fe:53:0:d9a0:511a:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1026.ui-dns.biz`
		A	217.160.81.26^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1026.ui-dns.biz`
NS	`ns1083.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:83^{🇺🇸 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	`ns1083.ui-dns.de`
		A	217.160.80.83^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1083.ui-dns.de`
NS	`ns1122.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:527a:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.com`
		A	217.160.82.122^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1122.ui-dns.com`
MX	`mx00.ionos.com` ⭐
		A	74.208.5.3^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx00.perfora.net`
MX	`mx01.ionos.com` ⭐
		A	74.208.5.21^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx01.perfora.net`
TXT	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	`ns1057.ui-dns.org`hostmaster@1und1.com 2017-06-01 #8

`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=1778874491

Same first word

classroomxl.com

DNS History

16 records (8 active, 8 former)

○NSns0.dnsmadeeasy.com2016-12-18 → 2026-03-14 · 4 obs

● 2016-12-18 21:49:40
● 2026-03-14 13:08:12
○ 2026-03-26 04:26:20
○ 2026-05-15 19:56:36

○NSns1.dnsmadeeasy.com2016-12-18 → 2026-03-14 · 4 obs

● 2016-12-18 21:49:40
● 2026-03-14 13:08:12
○ 2026-03-26 04:26:20
○ 2026-05-15 19:56:36

●NSns1026.ui-dns.biz2026-03-26 → 2026-05-15 · 3 obs

○ 2026-03-14 13:08:12
● 2026-03-26 04:26:20
● 2026-05-15 19:56:36

●NSns1057.ui-dns.org2026-03-26 → 2026-05-15 · 3 obs

○ 2026-03-14 13:08:12
● 2026-03-26 04:26:20
● 2026-05-15 19:56:36

●NSns1083.ui-dns.de2026-03-26 → 2026-05-15 · 3 obs

○ 2026-03-14 13:08:12
● 2026-03-26 04:26:20
● 2026-05-15 19:56:36

●NSns1122.ui-dns.com2026-03-26 → 2026-05-15 · 3 obs

○ 2026-03-14 13:08:12
● 2026-03-26 04:26:20
● 2026-05-15 19:56:36

○NSns2.dnsmadeeasy.com2016-12-18 → 2026-03-14 · 4 obs

● 2016-12-18 21:49:40
● 2026-03-14 13:08:12
○ 2026-03-26 04:26:20
○ 2026-05-15 19:56:36

○NSns3.dnsmadeeasy.com2016-12-18 → 2026-03-14 · 4 obs

● 2016-12-18 21:49:40
● 2026-03-14 13:08:12
○ 2026-03-26 04:26:20
○ 2026-05-15 19:56:36

○NSns4.dnsmadeeasy.com2016-12-18 → 2026-03-14 · 4 obs

● 2016-12-18 21:49:40
● 2026-03-14 13:08:12
○ 2026-03-26 04:26:20
○ 2026-05-15 19:56:36

○MXemail30.wpcloud.ca2016-12-18 → 2026-03-14 · 4 obs

● 2016-12-18 21:49:40
● 2026-03-14 13:08:12
○ 2026-03-26 04:26:20
○ 2026-05-15 19:56:36

●MXmx00.ionos.com2026-03-26 → 2026-05-15 · 3 obs

○ 2026-03-14 13:08:12
● 2026-03-26 04:26:20
● 2026-05-15 19:56:36

●MXmx01.ionos.com2026-03-26 → 2026-05-15 · 3 obs

○ 2026-03-14 13:08:12
● 2026-03-26 04:26:20
● 2026-05-15 19:56:36

○A198.100.154.282016-12-18 → 2017-10-21 · 4 obs

● 2016-12-18 21:49:40
● 2017-10-21 00:12:46
○ 2026-02-18 23:55:26
○ 2026-05-15 19:56:36

●A2607:f1c0:100f:f000::25d2026-03-26 → 2026-05-15 · 3 obs

○ 2026-03-14 13:08:12
● 2026-03-26 04:26:20
● 2026-05-15 19:56:36

○A54.39.163.382026-02-18 → 2026-03-14 · 5 obs

○ 2017-10-21 00:12:46
● 2026-02-18 23:55:26
● 2026-03-14 13:08:12
○ 2026-03-26 04:26:20
○ 2026-05-15 19:56:36

●A74.208.236.942026-03-26 → 2026-05-15 · 3 obs

○ 2026-03-14 13:08:12
● 2026-03-26 04:26:20
● 2026-05-15 19:56:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
classroomxl.com	ns1026.ui-dns.biz, ns1057.ui-dns.org, ns1083.ui-dns.de, ns1122.ui-dns.com	2 records

✅ Authoritative Response

Server:217.160.81.26

NS records: ns1026.ui-dns.biz, ns1057.ui-dns.org, ns1083.ui-dns.de, ns1122.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classroomxl.com (unsigned zone)

⏱️ Timing

Total: 1900ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`74.208.236.94`
AAAA	1	`2607:f1c0:100f:f000::25d`
NS	4	`ns1026.ui-dns.biz, ns1057.ui-dns.org...`
MX	2	`mx01.ionos.com (pri: 10), mx00.ionos.com (pri: 10)`
TXT	1	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	1	`ns1057.ui-dns.org hostmaster.1und1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1122.ui-dns.com, ns1122.ui-dns.com)

Analysis

IP Addresses

classroomxl.com points to two IP numbers: 2607:f1c0:100f:f000::25d and 74.208.236.94.

Other host names, for instance onagainads.com, vietvatican.net, newgreenbible.com, izotome.com and hsleldorado.com share IP numbers with classroomxl.com.

Name Servers

classroomxl.com is delegated to four name servers: ns1026.ui-dns.biz, ns1122.ui-dns.com, ns1083.ui-dns.de and ns1057.ui-dns.org.

classroomxl.com at least partially shares its name servers with other domains, for instance eulenspiegel-zeitschrift.de, colnenet.com, llegna.com, d-museum.org and peakamp.com.

These name servers are commonly used with ns1122.ui-dns.org, ns1122.ui-dns.biz, ns1122.ui-dns.de, ns1026.ui-dns.de, ns1026.ui-dns.org, ns1083.ui-dns.com, ns1026.ui-dns.com, ns1083.ui-dns.biz, ns1083.ui-dns.org and ns1057.ui-dns.com.

Host names with two IPs: ns1026.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:511a:100 and 217.160.81.26; ns1122.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:527a:100 and 217.160.82.122; ns1083.ui-dns.de points to 2607:f1c0:fe:53:185:132:32:83 and 217.160.80.83; ns1057.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:5339:100 and 217.160.83.57.

Mail Servers

Two mail servers mx00.ionos.com and mx01.ionos.com handle classroomxl.com.

classroomxl.com uses the same mail server setup as other domains such as esitemarket.com, indoresite.com, thevoglers.us, myfamilyharmony.com and mercurywc.com.

Host names with a single IP:

mx00.ionos.com resolves to 74.208.5.3.

mx01.ionos.com resolves to 74.208.5.21.

classroomxl.com - robtex.com

classroomxl.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`classroomxl.com`

`com`