classmate.io - robtex.com
classmate.io
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1778305976 | ||||||
Previously MX for
classmate.io |
Subdomains
app.classmate.io |
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
●NSns1.hover.com2026-03-17 → 2026-05-09 · 3 obs
● 2026-03-17 14:58:24
● 2026-05-09 06:03:22
●NSns2.hover.com2026-03-17 → 2026-05-09 · 3 obs
● 2026-03-17 14:58:24
● 2026-05-09 06:03:22
○NSns97.websitewelcome.com2019-03-23 → 2019-03-23 · 3 obs
○ 2026-03-17 14:58:24
○ 2026-05-09 06:03:22
○NSns98.websitewelcome.com2019-03-23 → 2019-03-23 · 3 obs
○ 2026-03-17 14:58:24
○ 2026-05-09 06:03:22
○MXclassmate.io2019-03-23 → 2019-03-23 · 3 obs
○ 2026-03-17 14:58:24
○ 2026-05-09 06:03:22
●MXmx.zohomail.com2026-03-17 → 2026-05-09 · 3 obs
● 2026-03-17 14:58:24
● 2026-05-09 06:03:22
●MXmx2.zohomail.com2026-03-17 → 2026-05-09 · 3 obs
● 2026-03-17 14:58:24
● 2026-05-09 06:03:22
○A192.185.88.1952019-03-23 → 2019-03-23 · 3 obs
○ 2026-03-17 14:58:24
○ 2026-05-09 06:03:22
●A216.40.34.412026-03-17 → 2026-05-09 · 3 obs
● 2026-03-17 14:58:24
● 2026-05-09 06:03:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| classmate.io | ns1.hover.com, ns2.hover.com | - |
✅ Authoritative Response
Server:216.40.47.26
NS records: ns1.hover.com, ns2.hover.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classmate.io (unsigned zone)
⏱️ Timing
Total: 625ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.40.34.41 |
| NS | 2 | ns2.hover.com, ns1.hover.com |
| MX | 2 | mx2.zohomail.com (pri: 20), mx.zohomail.com (pri: 10) |
| TXT | 1 | zoho-verification=zmverify.zoho.com |
| SOA | 1 | ns1.hover.com dnsmaster.hover.com |
Analysis
Hierarchy
classmate.io is the parent of app.classmate.io.
IP Addresses
classmate.io resolves to one IP number: 216.40.34.41.
other host names including the-emc.com, turnerbrooksarchitect.com, omg(0x6e756465)s.com, pennstatebroadway.com and texasorganicfoods.com share IP numbers with classmate.io.
Name Servers
classmate.io is delegated to two name servers ns1.hover.com and ns2.hover.com.
classmate.io shares the same name server setup as other domains, for instance socialguide.info, attartravel.com, aultcom.com, kansascitymommies.com and themish.com.
classmate.io at least partially shares name servers with other domains, for instance wisam.com, ismacs.com, tcgfastpitch.com, chris-limon.com and agrambo.com.
these name servers are often used together with ns3.hover.com, ns1.domaindirect.com, ns2.domaindirect.com and ns3.domaindirect.com.
Host names with two IP numbers:
The host name ns1.hover.com points to 2604:4000:0:d:216:40:47:26 and 216.40.47.26; the host name ns2.hover.com points to 2604:4000:2800:d:64:99:148:13 and 64.98.148.13.
Mail Servers
Two mail servers handle classmate.io: mx2.zohomail.com and mx.zohomail.com.
classmate.io shares the same mail server setup as other domains, for instance realkotlin.com, bronuts.ca, line.is, inteo.ro and iphonecalculator.com.
classmate.io shares some mail servers with other domains, at least partially, for instance mandmphotographie.com, duocthaothienphuc.vn, naturalself.me, etih.it and mmav.us.
these mail servers are often used alongside mx3.zoho.com, mx3.zohomail.com and mx.zoho.com.
Host names with two IP numbers: mx.zohomail.com points to 136.143.191.44 and 204.141.33.44.
Host names with one IP number: mx2.zohomail.com points to 204.141.33.44.
Host names that point to 204.141.33.44: mx.zohomail.com and mx2.zohomail.com.