mailcatcher.dev

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

mailcatcher.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.

6 other domains share an IP address with it, and 2 domains redirect to it.

The most recent crawl returned the page title “Mailcatcher - Email Testing for Developers” and 54,650 bytes of HTML. The site links to X.

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	6	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": "mailcatcher.dev"}'

Create a free account Read the API docs

Similar websites

Website	Similarity
mailhist.com Email Testing and SMTP Sandbox for Developers \| Mailhist Mailhist - Capture SMTP traffic, inspect headers, and debug HTML emails in a safe environment. The easiest way to test emails in development.	91 %
mailspons.com Fake SMTP server for safe email testing - MailSpons	88 %
mailwebhook.com MailWebhook \| Inbound Email Automation for Developers Connect Gmail, Microsoft 365, Outlook, or IMAP mailboxes and deliver signed JSON events to your app with routing, retries, and replay.	88 %
mailcatch.app Testing emails has never been easier! Supercharge your marketing ✨ - Mailcatch.app Test application emails without any extra effort with fake smtp server!	88 %
mailmock.app MailMock — Local Email Testing Server MailMock is a local SMTP server that captures outgoing emails so you can test and preview them without sending to real mailboxes.	88 %
mockmail.io Mockmail: Test and debug emails safely without sending to real inboxes Email debugging made easy and secure in Staging, Dev and QA environments with virtual SMTP servers	88 %
inboxlab.dev InboxLab — Test emails without emailing real users Get unlimited test email addresses under your own workspace and inspect every captured message in a clean visual inbox.	88 %
mailsac.com Mailsac: Disposable Test Email Addresses for QA & Developers Get a test email address instantly: any @mailsac.com inbox receives mail with no signup. Private inboxes, custom domains and a REST API for automated QA.	87 %
devmail.email DevMail - An email sandbox for software developers Email testing done right. Capture emails from your dev, staging, QA, or CI environment.	87 %
testmail.app Automate email tests \| loved by developers & QA teams Test new user signups, transactional emails, spam scores, and more. Get started on our free forever plan with unlimited email addresses and mailboxes.	87 %
emailspect.com EmailSpect - Disposable Email Service	87 %
maileyez.cloud MailEyez \| The Ultimate Email Testing Sandbox Safely test, inspect, and share emails before they hit production. MailEyez provides an isolated dummy SMTP and IMAP sandbox for your team.	87 %
emailperfect.io Email Perfect — Build better emails, faster Email Perfect is a web application for designing, collaborating on, and exporting production-ready marketing email HTML. Visual editing, team workflows, and...	87 %
msgtmp.com Email Testing Tool & Test Inbox \| MSGTMP MSGTMP is an email testing tool for developers and QA. Create a test inbox to receive verification codes, signup alerts, and HTML emails—then inspect every d...	87 %
mailwarren.io MailWarren — a safe email sandbox for developers MailWarren is a fake SMTP inbox for developers — capture, inspect, and share test emails safely without ever sending them to a real inbox.	87 %
mailcub.com Transactional Email API & Business Email Hosting for SaaS \| MailCub MailCub is a transactional email API and business email hosting platform built for SaaS teams, startups, and developers worldwide. Send OTPs, password resets...	86 %
mailjail.io MailJail - MailJail Email Testing Platform for Developers	86 %
forwardtop.com Email Testing & Disposable Test Addresses \| ForwardTop Inbox ForwardTop provides disposable test addresses for verification codes, signup flows, and HTML email testing. Check delivery instantly without cluttering your...	86 %
mailloop.io Mailloop: SMTP Email Testing Sandbox for Developers Catch, preview, and debug every email your app sends without hitting real inboxes. Mailloop gives developers a safe SMTP sandbox for testing email workflows.	86 %
devmail.space Email Testing Inbox for QA and Developers \| DevMail Persistent email testing inboxes for developers and QA. Inspect messages in the web UI, automate checks with the REST API, and connect AI agents through MCP.	86 %

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	8/25/2026
Valid to	11/23/2026
Time until expiry	31 days

Last successful crawl

Title	Mailcatcher - Email Testing for Developers
Description	Capture and test emails from your development environment. View HTML previews, inspect headers, and collaborate with your team safely.
Content-Length	54,650 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
49.13.151.155	3/11/2024
85.214.116.253	12/22/2023

IPv6 address	Last updated
2a01:4f8:1c1e:e945:0:0:0:1	3/11/2024

Mail server	Priority	Last updated
mx03.secure-mailgate.com	10	1/1/2024
mx04.secure-mailgate.com	20	1/1/2024

Name server	Last updated
ns.checkdomain.de	12/22/2023
ns2.checkdomain.de	12/22/2023

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
mailcatch.ing	10/22/2026
mailcatcher.cloud	10/15/2026

Reverse IP neighbours

2a01:4f8:1c1e:e945::1 3 domains · here since 9/22/2026

Domain	On this IP since
mailcatcher.cloud	9/22/2026
mailcatch.ing	9/16/2026

49.13.151.155 3 domains · here since 9/22/2026

Domain	On this IP since
mailcatcher.cloud	9/22/2026
mailcatch.ing	9/16/2026

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!