ctxfs.dev

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

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

Its busiest IP address is shared with 992 other domains.

The most recent crawl returned the page title “ctxfs — persistent filesystems for agents” and 14,360 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	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	3,950	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": "ctxfs.dev"}'

Create a free account Read the API docs

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Last SSL certificate

Issuer	Google Trust Services
Valid from	8/17/2026
Valid to	11/15/2026
Time until expiry	23 days

Last successful crawl

Title	ctxfs — persistent filesystems for agents
Description	A real Unix filesystem your agents can read, write, and search — over MCP or WebDAV, across machines and sessions.
Content-Length	14,360 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
104.21.45.27	4/27/2026
172.67.208.20	4/27/2026

IPv6 address	First seen
2606:4700:3031:0:0:0:6815:2d1b	6/29/2026
2606:4700:3036:0:0:0:ac43:d014	6/29/2026
2606:4700:3031:0:0:0:ac43:d014	4/27/2026
2606:4700:3037:0:0:0:6815:2d1b	4/27/2026

Name server	First seen
hasslo.ns.cloudflare.com	4/20/2026
vita.ns.cloudflare.com	4/20/2026

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

104.21.45.27 993 domains · here since 9/21/2026

Domain	On this IP since
zywienie.info	9/18/2026
zxjdrm.buzz	10/10/2026
zrbnahaja.digital	9/14/2026
zoosibcentr.ru	9/19/2026
zonibb.com	9/21/2026
znhmt.info	9/21/2026
zkotech.com	9/19/2026
zimplerkasinotilmanrekisteroitymista.eu	10/8/2026
zhcn-qiumenghui.com.cn	9/19/2026
zh-kuailian.nm.cn	10/10/2026
zgszbl.com	9/23/2026
zgss5563.com	9/15/2026
and 980 more

172.67.208.20 993 domains · here since 9/21/2026

Domain	On this IP since
zywienie.info	9/18/2026
zxjdrm.buzz	10/10/2026
zrbnahaja.digital	9/14/2026
zoosibcentr.ru	9/19/2026
zonibb.com	9/21/2026
znhmt.info	9/21/2026
zkotech.com	9/19/2026
zimplerkasinotilmanrekisteroitymista.eu	10/8/2026
zhcn-qiumenghui.com.cn	9/19/2026
zh-kuailian.nm.cn	10/10/2026
zgszbl.com	9/23/2026
zgss5563.com	9/15/2026
and 980 more

2606:4700:3031::6815:2d1b 982 domains · here since 9/21/2026

Domain	On this IP since
zywienie.info	9/18/2026
zxjdrm.buzz	10/10/2026
zrbnahaja.digital	9/14/2026
zoosibcentr.ru	9/19/2026
zonibb.com	9/21/2026
znhmt.info	9/21/2026
zkotech.com	9/19/2026
zimplerkasinotilmanrekisteroitymista.eu	10/8/2026
zhcn-qiumenghui.com.cn	9/19/2026
zh-kuailian.nm.cn	10/10/2026
zgszbl.com	9/23/2026
zgss5563.com	9/15/2026
and 969 more

2606:4700:3036::ac43:d014 982 domains · here since 9/21/2026

Domain	On this IP since
zywienie.info	9/18/2026
zxjdrm.buzz	10/10/2026
zrbnahaja.digital	9/14/2026
zoosibcentr.ru	9/19/2026
zonibb.com	9/21/2026
znhmt.info	9/21/2026
zkotech.com	9/19/2026
zimplerkasinotilmanrekisteroitymista.eu	10/8/2026
zhcn-qiumenghui.com.cn	9/19/2026
zh-kuailian.nm.cn	10/10/2026
zgszbl.com	9/23/2026
zgss5563.com	9/15/2026
and 969 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!