stackmail.io

Get an email when its DNS, website or certificate changes.

stackmail.io serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate and MX records for mail.

3,621 other domains share an IP address with it, and 5 domains redirect to it.

The most recent crawl returned the page title “StackMail - Affordable Cold Email Infrastructure | Google & Microsoft Mailboxes from $2.50” and 55,914 bytes of HTML. The site links to X and LinkedIn profiles.

Domain properties

Property	Value	Explanation
Top-level domain	.io	Statistics for all domains we know under this TLD.
Has website	yes	A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record	yes	The domain has an MX record.
External redirect	no	The domain redirects to another domain.
Redirect to https	yes	The domain redirects to https.
Redirect to www.	no	The domain redirects to www.domain.
Only with www.	no	The domain can only be reached with the subdomain "www".
Only DNS, no website	no	There are no A or AAAA records in DNS.
IP-Address	Both	Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate	valid	Shows whether the domain has a valid SSL certificate.
Redirects	5	Number of domains that redirect to this domain.
Reverse IP	3,621	Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "stackmail.io"}'

Create a free account Read the API docs

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Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer	Google Trust Services
Valid from	10/2/2026
Valid to	12/31/2026
Time until expiry	72 days

Last successful crawl

Title	StackMail - Affordable Cold Email Infrastructure \| Google & Microsoft Mailboxes from $2.50
Description	Set up cold email infrastructure in minutes. Get Google Workspace and Microsoft 365 mailboxes from $2.50/month with automated DNS setup (SPF, DKIM, DMARC), domain isolation, and seamless sequencer integrations. Perfect for sales teams, agencies, and cold email pros.
Content-Length	55,914 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address	Last updated
104.21.59.165	6/11/2026
172.67.180.238	6/11/2026
216.150.1.1	2/21/2026
216.198.79.1	1/19/2026
104.21.59.165	12/23/2025

IPv6 address	Last updated
2606:4700:3034:0:0:0:ac43:b4ee	6/28/2026
2606:4700:3036:0:0:0:6815:3ba5	6/28/2026
2606:4700:3034:0:0:0:ac43:b4ee	12/23/2025
2606:4700:3035:0:0:0:6815:3ba5	12/23/2025

Mail server	Priority	Last updated
smtp.google.com	1	12/23/2025

Name server	Last updated
armfazh.ns.cloudflare.com	6/11/2026
raina.ns.cloudflare.com	6/11/2026
dee.ns.cloudflare.com	12/23/2025
eoin.ns.cloudflare.com	12/23/2025

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

Domain	Last seen
stackmailteam.com	3/23/2026
stackmaillabs.com	3/23/2026
stackmailhq.com	3/23/2026
trystackmail.com	3/23/2026
getstackmail.com	3/23/2026

Reverse IP neighbours

104.21.59.165 907 domains · here since 9/15/2026

Domain	On this IP since
ztygo.cn	10/18/2026
zoovlog.ru	9/13/2026
ziyouxie.online	9/14/2026
zeppcasino.com	10/7/2026
zaviya.pk	10/16/2026
zanqvextorin.xyz	9/12/2026
youzep2p.com	10/15/2026
yhdatabank.com	9/21/2026
ycdcvip.com	9/23/2026
yallashotkora.com	9/22/2026
y97xy.com	9/21/2026
xtdiy.net	9/25/2026
and 894 more

172.67.180.238 907 domains · here since 9/15/2026

Domain	On this IP since
ztygo.cn	10/18/2026
zoovlog.ru	9/13/2026
ziyouxie.online	9/14/2026
zeppcasino.com	10/7/2026
zaviya.pk	10/16/2026
zanqvextorin.xyz	9/12/2026
youzep2p.com	10/15/2026
yhdatabank.com	9/21/2026
ycdcvip.com	9/23/2026
yallashotkora.com	9/22/2026
y97xy.com	9/21/2026
xtdiy.net	9/25/2026
and 894 more

2606:4700:3034::ac43:b4ee 904 domains · here since 9/15/2026

Domain	On this IP since
ztygo.cn	10/18/2026
zoovlog.ru	9/13/2026
ziyouxie.online	9/14/2026
zeppcasino.com	10/7/2026
zaviya.pk	10/16/2026
zanqvextorin.xyz	9/12/2026
youzep2p.com	10/15/2026
yhdatabank.com	9/21/2026
ycdcvip.com	9/23/2026
yallashotkora.com	9/22/2026
y97xy.com	9/21/2026
xtdiy.net	9/25/2026
and 891 more

2606:4700:3036::6815:3ba5 903 domains · here since 9/15/2026

Domain	On this IP since
ztygo.cn	10/18/2026
zoovlog.ru	9/13/2026
ziyouxie.online	9/14/2026
zeppcasino.com	10/7/2026
zaviya.pk	10/16/2026
zanqvextorin.xyz	9/12/2026
youzep2p.com	10/15/2026
yhdatabank.com	9/21/2026
ycdcvip.com	9/23/2026
yallashotkora.com	9/22/2026
y97xy.com	9/21/2026
xtdiy.net	9/25/2026
and 890 more

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.

Dive into our data, search now!