12testers.dev

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

12testers.dev serves a website of its own over HTTPS. It answers on IPv4 only, with a valid TLS certificate and MX records for mail.

Its IP address is shared with 14 other domains.

The most recent crawl returned the page title “12 Tester.Dev - Launch Your App with Confidence in 14 days” and 69,587 bytes of HTML. The site links to YouTube.

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	only IPv4	Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate	valid	Shows whether the domain has a valid SSL certificate.
Redirects	0	Number of domains that redirect to this domain.
Reverse IP	15	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": "12testers.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	Let's Encrypt
Valid from	10/13/2026
Valid to	1/11/2027
Time until expiry	77 days

Last successful crawl

Title	12 Tester.Dev - Launch Your App with Confidence in 14 days
Description	Get your app thoroughly tested by 12 expert users over 14 days. Receive detailed feedback, bug reports, and user experience insights to ensure your app is ready for the Play Store.
Content-Length	69,587 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
138.199.171.40	2/24/2025
188.245.149.63	2/6/2025

Mail server	Priority	First seen
mta-gw.infomaniak.ch	5	2/6/2025

Name server	First seen
nsany1.infomaniak.com	2/6/2025
nsany2.infomaniak.com	2/6/2025

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

Most recent redirect domains

No domains found.

Reverse IP neighbours

138.199.171.40 15 domains · here since 9/18/2026

Domain	On this IP since
yogalite.ch	9/22/2026
reactacademie.fr	9/15/2026
photo-app.fr	9/20/2026
moana-yoga.ch	9/14/2026
lovealbum.fr	9/13/2026
lovealbum.de	9/17/2026
love-album.fr	9/12/2026
love-album.de	9/18/2026
love-album.com	9/14/2026
lebip.fr	9/16/2026
joeb.ch	9/29/2026
easyjobroom.ch	9/21/2026
and 2 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!