classcalc.com - robtex.com

classcalc.com

DNSSEC⚠️ Not signed
A35.193.100.97🇺🇸 Google35.193.96.0/20
PTR97.100.193.35.bc.googleusercontent.com
NSns-cloud-e1.googledomains.com ⭐
A2001:4860:4802:32::6e🇺🇸 Google2001:4860::/32
PTRns-cloud-e1.googledomains.com
A216.239.32.110🇺🇸 Google216.239.32.0/24
PTRns-cloud-e1.googledomains.com
NSns-cloud-e2.googledomains.com
A2001:4860:4802:34::6e🇺🇸 Google2001:4860::/32
PTRns-cloud-e2.googledomains.com
A216.239.34.110🇺🇸 Google216.239.34.0/24
PTRns-cloud-e2.googledomains.com
NSns-cloud-e3.googledomains.com
A2001:4860:4802:36::6e🇺🇸 Google2001:4860::/32
PTRns-cloud-e3.googledomains.com
A216.239.36.110🇺🇸 Google216.239.36.0/24
PTRns-cloud-e3.googledomains.com
NSns-cloud-e4.googledomains.com
A2001:4860:4802:38::6e🇺🇸 Google2001:4860::/32
PTRns-cloud-e4.googledomains.com
A216.239.38.110🇺🇸 Google216.239.38.0/24
PTRns-cloud-e4.googledomains.com
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c19::1b🇺🇸 Google2607:f8b0:4004::/48
PTRbk-in-f27.1e100.net
A172.253.62.27🇺🇸 Google172.253.62.0/24
PTRbc-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2607:f8b0:4003:c30::1b🇺🇸 Google2607:f8b0:4003::/48
PTRyutulis-in-f27.1e100.net
A74.125.27.26🇺🇸 Google74.125.27.0/24
PTRyutulis-in-f26.1e100.net
MXalt2.aspmx.l.google.com(5)
A2607:f8b0:4001:c70::1a🇺🇸 Google2607:f8b0:4001::/48
PTRyucbful-in-f26.1e100.net
A192.178.209.26🇺🇸 Google192.178.209.0/24
PTRyucbful-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2607:f8b0:4024:c0d::1b🇺🇸 Google2607:f8b0::/32
PTRmj-in-f27.1e100.net
A192.178.152.26🇺🇸 Google192.178.152.0/24
PTRmj-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2607:f8b0:4023:403::1a🇺🇸 Google2607:f8b0::/32
PTRgg-in-f26.1e100.net
A142.250.96.27🇺🇸 Google142.250.96.0/24
PTRgg-in-f27.1e100.net
TXTgoogle-site-verification=0dKQdLoO3ZQn_l2r4rDUyUNqetlgykKy3eYrJDM4zgc
TXTgoogle-site-verification=WfIRsVxZq7s2wLwzGXLLrKkaNcQEomF0ZHQHs0foVtQ
TXTgoogle-site-verification=C8do1enDbJLch6FFUvIC-usdYKjYvqFzjsQLGBIGkc4
TXTv=spf1 include:_spf.google.com include:transmail.net ~all
SOAns-cloud-e1.googledomains.comcloud-dns-hostmaster@google.com serial=1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

Previously MX for

classcalc.com

Subdomains

prod.classcalc.com

Same first word

classcalc.com

DNS History

14 records (10 active, 4 former)

201820192020202120222023202420252026NSns-cloud-e1.googledomains.comns-cloud-e2.googledomains.comns-cloud-e3.googledomains.comns-cloud-e4.googledomains.comns1.bluehost.comns2.bluehost.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comclasscalc.comA35.193.100.97108.179.213.65
●NSns-cloud-e1.googledomains.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
●NSns-cloud-e2.googledomains.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
●NSns-cloud-e3.googledomains.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
●NSns-cloud-e4.googledomains.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
○NSns1.bluehost.com2017-08-12 → 2017-08-12 · 3 obs
● 2017-08-12 23:31:10
○ 2026-03-05 09:40:52
○ 2026-03-18 14:02:38
○NSns2.bluehost.com2017-08-12 → 2017-08-12 · 3 obs
● 2017-08-12 23:31:10
○ 2026-03-05 09:40:52
○ 2026-03-18 14:02:38
●MXalt1.aspmx.l.google.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
●MXalt2.aspmx.l.google.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
●MXalt3.aspmx.l.google.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
●MXalt4.aspmx.l.google.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
●MXaspmx.l.google.com2026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38
○MXclasscalc.com2017-08-12 → 2017-08-12 · 3 obs
● 2017-08-12 23:31:10
○ 2026-03-05 09:40:52
○ 2026-03-18 14:02:38
○A108.179.213.652017-08-12 → 2017-08-12 · 3 obs
● 2017-08-12 23:31:10
○ 2026-03-05 09:40:52
○ 2026-03-18 14:02:38
●A35.193.100.972026-03-05 → 2026-03-18 · 3 obs
○ 2017-08-12 23:31:10
● 2026-03-05 09:40:52
● 2026-03-18 14:02:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comk.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net...-
classcalc.comns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com8 records

✅ Authoritative Response

Server: 216.239.38.110

NS records: ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for classcalc.com (unsigned zone)

⏱️ Timing

Total: 236ms | Queries: -

📄 Records

TypeCountSample Data
A135.193.100.97
NS4ns-cloud-e3.googledomains.com, ns-cloud-e1.googledomains.com...
MX5aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...
TXT4google-site-verification=0dKQdLoO3ZQn_l2, google-site-verification=C8do1enDbJLch6F...
SOA1ns-cloud-e1.googledomains.com cloud-dns-

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns-cloud-e1.googledomains.com, ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com...)

Analysis

Hierarchy

The parent of prod.classcalc.com is classcalc.com.

IP Addresses

classcalc.com points to a single IP number: 35.193.100.97.

Name Servers

classcalc.com is delegated to four name servers: ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com and ns-cloud-e4.googledomains.com.

classcalc.com shares name servers with other domains at least partially, for instance drdanasays.com, hunnyball.com, mezel.net, thenaturalhealthmarket.co.uk and jonying.com.

Host names with two IP numbers:

ns-cloud-e1.googledomains.com resolves to 2001:4860:4802:32::6e and 216.239.32.110.

ns-cloud-e2.googledomains.com resolves to 2001:4860:4802:34::6e and 216.239.34.110.

ns-cloud-e3.googledomains.com resolves to 2001:4860:4802:36::6e and 216.239.36.110.

ns-cloud-e4.googledomains.com resolves to 2001:4860:4802:38::6e and 216.239.38.110.

Mail Servers

classcalc.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

classcalc.com shares some mail servers with other domains, including ccimtexas.com, healthkounter.com, guidion.net, misencad.com and mikitenko.info.

these mail servers are commonly used with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27.

alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26.

alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26.

alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26.

alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27.