area51.dev

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

area51.dev serves a website of its own. It answers on both IPv4 and IPv6, with a valid TLS certificate.

3,584 other domains share an IP address with it, and 4 domains redirect to it.

The most recent crawl returned the page title “Area51 - Free Online Tools for Developers” and 8,504 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	no	The domain has an MX record.
External redirect	no	The domain redirects to another domain.
Redirect to https	no	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	4	Number of domains that redirect to this domain.
Reverse IP	3,584	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": "area51.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	9/25/2026
Valid to	12/24/2026
Time until expiry	63 days

Last successful crawl

Title	Area51 - Free Online Tools for Developers
Description	A curated collection of web-based utilities for daily development tasks.
Content-Length	8,504 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
104.21.78.232	5/18/2026
172.67.138.104	5/18/2026
15.197.162.184	10/11/2025
34.216.117.25	5/24/2025
54.149.79.189	5/24/2025

IPv6 address	Last updated
2606:4700:3033:0:0:0:6815:4ee8	6/20/2026
2606:4700:3036:0:0:0:ac43:8a68	6/20/2026
2606:4700:3032:0:0:0:ac43:8a68	5/18/2026
2606:4700:3035:0:0:0:6815:4ee8	5/18/2026
2606:4700:3030:0:0:0:6815:1001	3/30/2025

Mail server	Priority	Last updated
gmr-smtp-in.l.google.com	5	12/31/2023
alt1.gmr-smtp-in.l.google.com	10	12/31/2023
alt2.gmr-smtp-in.l.google.com	20	12/31/2023
alt3.gmr-smtp-in.l.google.com	30	12/31/2023
alt4.gmr-smtp-in.l.google.com	40	12/31/2023

Name server	Last updated
evan.ns.cloudflare.com	5/18/2026
ivy.ns.cloudflare.com	5/18/2026
launch1.spaceship.net	5/24/2025
launch2.spaceship.net	5/24/2025
aurora.ns.cloudflare.com	12/10/2023

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
a51.space	2/22/2025
maidstoneweather.com	2/21/2025
piweather.center	2/20/2025
area51.onl	2/20/2025

Reverse IP neighbours

104.21.78.232 898 domains · here since 9/15/2026

Domain	On this IP since
zzrejbtpfg.com	10/3/2026
zucs.top	10/19/2026
ztsjwy.com	10/20/2026
zoduna.site	9/18/2026
znfdgv.my	9/13/2026
zkczlbbj.com	9/13/2026
zhodrumean-fr.online	9/22/2026
zhaoxiongwan.com	9/12/2026
zfrz.cn	9/20/2026
zeus138hoki699.site	9/25/2026
zenopyryne.space	9/13/2026
zeno88.biz	9/17/2026
and 885 more

172.67.138.104 898 domains · here since 9/15/2026

Domain	On this IP since
zzrejbtpfg.com	10/3/2026
zucs.top	10/19/2026
ztsjwy.com	10/20/2026
zoduna.site	9/18/2026
znfdgv.my	9/13/2026
zkczlbbj.com	9/13/2026
zhodrumean-fr.online	9/22/2026
zhaoxiongwan.com	9/12/2026
zfrz.cn	9/20/2026
zeus138hoki699.site	9/25/2026
zenopyryne.space	9/13/2026
zeno88.biz	9/17/2026
and 885 more

2606:4700:3033::6815:4ee8 894 domains · here since 9/15/2026

Domain	On this IP since
zzrejbtpfg.com	10/3/2026
zucs.top	10/19/2026
ztsjwy.com	10/20/2026
zoduna.site	9/18/2026
znfdgv.my	9/13/2026
zkczlbbj.com	9/13/2026
zhodrumean-fr.online	9/22/2026
zhaoxiongwan.com	9/12/2026
zfrz.cn	9/20/2026
zeus138hoki699.site	9/25/2026
zeno88.biz	9/17/2026
zelemiforresources.click	9/18/2026
and 881 more

2606:4700:3036::ac43:8a68 894 domains · here since 9/15/2026

Domain	On this IP since
zzrejbtpfg.com	10/3/2026
zucs.top	10/19/2026
ztsjwy.com	10/20/2026
zoduna.site	9/18/2026
znfdgv.my	9/13/2026
zkczlbbj.com	9/13/2026
zhodrumean-fr.online	9/22/2026
zhaoxiongwan.com	9/12/2026
zfrz.cn	9/20/2026
zeus138hoki699.site	9/25/2026
zeno88.biz	9/17/2026
zelemiforresources.click	9/18/2026
and 881 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!