tst.dev

tst.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.

13,261 other domains share an IP address with it.

The most recent crawl returned the page title “tst.dev - Client-side developer utilities” and 54,302 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	0	Number of domains that redirect to this domain.
Reverse IP	13,261	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": "tst.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	Amazon
Valid from	9/16/2026
Valid to	4/2/2027
Time until expiry	166 days

Last successful crawl

Title	tst.dev - Client-side developer utilities
Description	Simple, client-side developer tools: JWT, JSON, diff, regex, hashing, epoch, cron, and UUID.
Content-Length	54,302 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
99.84.152.103	9/23/2026
99.84.152.59	9/23/2026
99.84.152.88	9/23/2026
99.84.152.94	9/23/2026
127.0.0.1	7/31/2026

IPv6 address	Last updated
2600:9000:20e8:6e00:19:7005:5400:93a1	10/10/2026
2600:9000:20e8:8800:19:7005:5400:93a1	10/10/2026
2600:9000:20e8:b200:19:7005:5400:93a1	10/10/2026
2600:9000:20e8:b600:19:7005:5400:93a1	10/10/2026
2600:9000:20e8:c800:19:7005:5400:93a1	10/10/2026

Mail server	Priority	Last updated
mail.protonmail.ch	10	9/23/2026
mailsec.protonmail.ch	20	9/23/2026
eforward1.registrar-servers.com	10	7/31/2026
eforward2.registrar-servers.com	10	7/31/2026
eforward3.registrar-servers.com	10	7/31/2026

Name server	Last updated
ns-1354.awsdns-41.org	9/23/2026
ns-1616.awsdns-10.co.uk	9/23/2026
ns-42.awsdns-05.com	9/23/2026
ns-775.awsdns-32.net	9/23/2026
dns1.registrar-servers.com	5/6/2026

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

2600:9000:20e8:2200:19:7005:5400:93a1 1 domain · here since 10/11/2026

Domain	On this IP since
No other domains on this address.

2600:9000:20e8:2600:19:7005:5400:93a1 1 domain · here since 10/11/2026

Domain	On this IP since
No other domains on this address.

2600:9000:20e8:6c00:19:7005:5400:93a1 1 domain · here since 10/11/2026

Domain	On this IP since
No other domains on this address.

2600:9000:20e8:8200:19:7005:5400:93a1 1 domain · here since 10/11/2026

Domain	On this IP since
No other domains on this address.

2600:9000:20e8:9e00:19:7005:5400:93a1 1 domain · here since 10/11/2026

Domain	On this IP since
No other domains on this address.

2600:9000:20e8:ae00:19:7005:5400:93a1 1 domain · here since 10/11/2026

Domain	On this IP since
No other domains on this address.

2600:9000:20e8:da00:19:7005:5400:93a1 1 domain · here since 10/11/2026

Domain	On this IP since
No other domains on this address.

2600:9000:20e8:e800:19:7005:5400:93a1 1 domain · here since 10/11/2026

Domain	On this IP since
No other domains on this address.

99.84.152.103 5,640 domains · here since 9/18/2026

Domain	On this IP since
zzz-jogo.com	9/21/2026
zztmgq.com	9/14/2026
zyvoventures.com	9/23/2026
zyvorafashion.com	9/20/2026
zyvora22.org	9/15/2026
zyraluxe.com.in	9/13/2026
zyraafashion.co.in	9/29/2026
zyra.com.in	9/13/2026
zyphrio.com	9/14/2026
zynvet.com	9/12/2026
zyntrahub.com	10/2/2026
zynkhub.com	10/15/2026
and 5,627 more

99.84.152.59 3,959 domains · here since 9/18/2026

Domain	On this IP since
zzk0007.com	9/15/2026
zwscaluminum.com	10/8/2026
zukunftspace.com	10/1/2026
zukan.org	10/5/2026
zovio.app	9/18/2026
zombg.com	9/13/2026
zolar.com	9/16/2026
zocnotes.ai	9/23/2026
zmx.com	9/28/2026
zmrcloud.com	10/6/2026
zluxxe.com	9/30/2026
zk22111.com	9/18/2026
and 3,946 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!