`o4.appmail.formstack.com`

DNSSEC	⚠️ Not signed
A	167.89.84.143^{🇺🇸 ASN-SENDGRID167.89.64.0/19 Twilio, Inc. 1801 California Street Suite 500 Denver CO 80202 United States}
		PTR	`o4.appmail.formstack.com`

`appmail.formstack.com`

	CNAME	`u2350393.wl144.sendgrid.net`
	DNSSEC	⚠️ Not signed
	MX	`mx.sendgrid.net` ⭐
	TXT	`v=spf1 include:sendgrid.net ~all`

WOT: SAFE (79/100)
WOT: SAFE (87/100)

Same first word

o4.se

o4.com.au

o4.be

o4.hu

o4.company

o4.network

o4.no

o4.de

o4.org

o4.pl

o4.com

o4.dk

o4.ro

o4.su

o4.cz

o4.eu

o4.ru

o4.nl

o4.cn

o4.fi

o4.com.br

Similar names

4o.fr

4o.ru

4o.pw

4o.su

4o.cz

4o.no

4o.nl

4o.pl

4o.com

4o.be

4o.dk

4o.se

4o.com.br

4o.hu

4o.com.cn

4o.net

DNS History

1 record (1 active, 0 former)

●A167.89.84.1432018-01-30 → 2026-04-15 · 2 obs

● 2018-01-30 21:11:46
● 2026-04-15 07:59:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...	-
formstack.com	ns-701.awsdns-23.net, ns-500.awsdns-62.com, ns-1400.awsdns-47.org, ns-2016.awsdns-60.co.uk	1 record

✅ Authoritative Response

Server:205.251.199.224

NS records: ns-701.awsdns-23.net, ns-500.awsdns-62.com, ns-1400.awsdns-47.org, ns-2016.awsdns-60.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for formstack.com (unsigned zone)

⏱️ Timing

Total: 473ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`167.89.84.143`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-500.awsdns-62.com)

Analysis

IP Addresses

o4.appmail.formstack.com points to a single IP number: 167.89.84.143.

o4.appmail.formstack.com - robtex.com