unsub.dev

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

unsub.dev 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.

Its busiest IP address is shared with 10,608,159 other domains, and 2 domains redirect to it.

The most recent crawl returned the page title “Unsub Development Studios — Custom internal tools, built to fit” and 20,971 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.dev	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	2	Number of domains that redirect to this domain.
Reverse IP	23,879,610	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": "unsub.dev"}'

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	8/25/2026
Valid to	11/23/2026
Time until expiry	29 days

Last successful crawl

Title	Unsub Development Studios — Custom internal tools, built to fit
Description	We build custom internal tools that fit your exact workflow, so you can cancel the expensive SaaS subscriptions and end manual data entry for good.
Content-Length	20,971 bytes

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

DNS history

IPv4 address	First seen
104.21.27.87	9/2/2026
172.67.169.20	9/2/2026
172.234.24.211	2/13/2026
172.239.57.117	2/13/2026
162.255.119.182	2/13/2025

IPv6 address	First seen
2606:4700:3032:0:0:0:6815:1b57	9/2/2026
2606:4700:3037:0:0:0:ac43:a914	9/2/2026

Mail server	Priority	First seen
smtp.google.com	1	8/17/2026
mx.plingest.com	10	2/13/2026
eforward1.registrar-servers.com	10	2/13/2025
eforward2.registrar-servers.com	10	2/13/2025
eforward3.registrar-servers.com	10	2/13/2025

Name server	First seen
olga.ns.cloudflare.com	8/3/2026
trace.ns.cloudflare.com	8/3/2026
dns101.registrar-servers.com	2/13/2026
dns102.registrar-servers.com	2/13/2026
dns1.registrar-servers.com	2/13/2025

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
unsubstudio.com	10/24/2026
unsubdev.com	10/19/2026

Reverse IP neighbours

188.114.97.2 1,331,650 domains · here since 10/14/2026

Domain	On this IP since
zzzzy.com	10/3/2026
zzzzi6.com	10/17/2026
zzzzbett-br.com	10/15/2026
zzzzbetapk.com	10/24/2026
zzzzahodim.com	10/15/2026
zzzzab.com	10/19/2026
zzzz77777.com	10/20/2026
zzzz3.app	10/15/2026
zzzz1998e.com	10/14/2026
zzzz12.com	10/24/2026
zzzz-al.com	10/21/2026
zzzysolar.com	10/17/2026
and 1,331,637 more

188.114.96.2 1,331,643 domains · here since 10/14/2026

Domain	On this IP since
zzzzy.com	10/3/2026
zzzzi6.com	10/17/2026
zzzzbett-br.com	10/15/2026
zzzzbetapk.com	10/24/2026
zzzzahodim.com	10/15/2026
zzzzab.com	10/19/2026
zzzz77777.com	10/20/2026
zzzz3.app	10/15/2026
zzzz1998e.com	10/14/2026
zzzz12.com	10/24/2026
zzzz-al.com	10/21/2026
zzzysolar.com	10/17/2026
and 1,331,630 more

2a06:98c1:3120::3 10,608,160 domains · here since 9/20/2026

Domain	On this IP since
zzzzzzzzzzzzzzzzzzzzzz.my.id	10/21/2026
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	10/19/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzzkgf.store	10/22/2026
zzzzzyl1.cn	10/14/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
and 10,608,147 more

2a06:98c1:3121::3 10,608,157 domains · here since 9/20/2026

Domain	On this IP since
zzzzzzzzzzzzzzzzzzzzzz.my.id	10/21/2026
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	10/19/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzzkgf.store	10/22/2026
zzzzzyl1.cn	10/14/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
and 10,608,144 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!