`mail.calcuttaonweb.com`

CNAME	`calcuttaonweb.com`
DNSSEC	⚠️ Not signed
A	79.137.3.5^{🇵🇱 OVH79.137.0.0/17}
		PTR	`ip5.ip-79-137-3.eu`
NS	`ns1.calcuttaonweb.com` ⭐
		A	79.137.3.5^{🇵🇱 OVH79.137.0.0/17}
			PTR	`ip5.ip-79-137-3.eu`
NS	`ns2.calcuttaonweb.com`
		A	79.137.3.5^{🇵🇱 OVH79.137.0.0/17}
			PTR	`ip5.ip-79-137-3.eu`
MX	`calcuttaonweb.com` ⭐
		A	79.137.3.5^{🇵🇱 OVH79.137.0.0/17}
			PTR	`ip5.ip-79-137-3.eu`
TXT	`v=spf1 +a +mx +ip4:141.95.157.22 +ip4:79.137.3.5 ~all`
SOA	`ns1.calcuttaonweb.com`hostmaster@calcuttaonweb.com 2026-07-18 #1

`calcuttaonweb.com`

	DNSSEC	⚠️ Not signed
	A	79.137.3.5^{🇵🇱 OVH79.137.0.0/17}
	NS	`ns1.calcuttaonweb.com` ⭐
	NS	`ns2.calcuttaonweb.com`
	MX	`calcuttaonweb.com` ⭐
	TXT	`v=spf1 +a +mx +ip4:141.95.157.22 +ip4:79.137.3.5 ~all`
	SOA	`ns1.calcuttaonweb.com`hostmaster@calcuttaonweb.com 2026-07-18 #1

WOT: SAFE (62/100)
WOT: UNKNOWN (68/100)

Previously MX for

calcuttaonweb.com

Same first word

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DNS History

6 records (1 active, 5 former)

○NSns1.sedoparking.com2015-11-24 → 2016-06-21 · 4 obs

● 2015-11-24 15:20:14
● 2016-06-21 18:27:02
○ 2026-08-09 09:52:32
○ 2026-08-09 09:52:34

○NSns2.sedoparking.com2015-11-24 → 2016-06-21 · 4 obs

● 2015-11-24 15:20:14
● 2016-06-21 18:27:02
○ 2026-08-09 09:52:32
○ 2026-08-09 09:52:34

○MXmail.nickstel.com2015-11-24 → 2016-06-21 · 4 obs

● 2015-11-24 15:20:14
● 2016-06-21 18:27:02
○ 2026-08-09 09:52:32
○ 2026-08-09 09:52:34

○A173.193.105.2412015-07-15 → 2015-07-15 · 3 obs

● 2015-07-15 13:33:54
○ 2015-11-24 15:20:14
○ 2026-08-09 09:52:34

○A72.52.4.912015-11-24 → 2016-06-21 · 5 obs

○ 2015-07-15 13:33:54
● 2015-11-24 15:20:14
● 2016-06-21 18:27:02
○ 2026-08-09 09:52:32
○ 2026-08-09 09:52:34

●CNAMEcalcuttaonweb.com2026-08-09 → 2026-08-09 · 2 obs

● 2026-08-09 09:52:32
● 2026-08-09 09:52:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net...	-
calcuttaonweb.com	ns1.calcuttaonweb.com, ns2.calcuttaonweb.com	2 records

✅ Authoritative Response

Server:79.137.3.5

NS records: ns1.calcuttaonweb.com, ns2.calcuttaonweb.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for calcuttaonweb.com (unsigned zone)

⏱️ Timing

Total: 294ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`calcuttaonweb.com`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.calcuttaonweb.com, ns2.calcuttaonweb.com)

Analysis

IP Addresses

mail.calcuttaonweb.com has exactly one IP address — 79.137.3.5.

airforcebalbharatischool.com, calcuttaonweb.com, ns1.qando.net plus two other host names have IP numbers in common with mail.calcuttaonweb.com.

Name Servers

Two name servers handle the delegation for mail.calcuttaonweb.com: ns1.calcuttaonweb.com and ns2.calcuttaonweb.com.

mail.calcuttaonweb.com delegates to the same name servers as other domains, calcuttaonweb.com among them.

ns1.calcuttaonweb.com directs to 79.137.3.5, as does ns2.calcuttaonweb.com — both hostnames resolve to that one IP address.

ns1.calcuttaonweb.com along with ns2.calcuttaonweb.com each resolve to 79.137.3.5 IP addresses.

Mail Servers

mail.calcuttaonweb.com uses one mail server — calcuttaonweb.com.

mail.calcuttaonweb.com uses the same mail servers as other domains, including calcuttaonweb.com.

calcuttaonweb.com carries a single IP number, which is 79.137.3.5.

mail.calcuttaonweb.com - robtex.com