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384.5 M

Domains known to webXtrend

9.4 M

New domains in the last 30 days

62.8 M

Social media profiles detected

sessionfs.dev

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

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

259,209 other domains share an IP address with it.

The most recent crawl returned the page title “SessionFS — Your AI Coding Agent Never Starts From Zero Again” and 41,741 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 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 259,209 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": "sessionfs.dev"}'

Create a free account Read the API docs

Detected social media networks

No social networks found on this website.

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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 9/25/2026
Valid to 12/24/2026
Time until expiry 64 days

Last successful crawl

Title SessionFS — Your AI Coding Agent Never Starts From Zero Again
Description SessionFS captures every AI coding session so your agent always knows what happened last session. Resume in any tool, switch machines, come back tomorrow — no re-explaining.
Content-Length 41,741 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
216.150.1.129 10/17/2026
216.150.16.129 10/17/2026
216.150.1.1 10/9/2026
216.150.16.65 10/9/2026
216.150.1.129 9/30/2026
Mail server Priority Last updated
mx1.improvmx.com 10 3/24/2026
mx2.improvmx.com 20 3/24/2026
Name server Last updated
ns1.vercel-dns.com 3/24/2026
ns2.vercel-dns.com 3/24/2026

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

216.150.1.193 132,342 domains · here since 10/20/2026
Domain On this IP since
zzzila.fun 10/20/2026
zzz.bingo 10/12/2026
zzz-inc.com 10/8/2026
zzxfqt.info 10/3/2026
zztbsw.info 10/16/2026
zzro.io 10/17/2026
zzphypotheekgids.nl 10/2/2026
zzpdld.info 10/16/2026
zzpchat.com 9/29/2026
zzish.com 9/14/2026
zzcxpw.info 10/18/2026
zzchdz.info 10/12/2026
and 132,329 more
216.150.16.193 126,867 domains · here since 10/20/2026
Domain On this IP since
zzzip.kr 10/8/2026
zzzila.fun 10/20/2026
zzz.legal 9/21/2026
zzz.art 10/8/2026
zzwdhq.info 10/16/2026
zzstable.com 9/29/2026
zzro.io 10/17/2026
zzjxhl.info 10/4/2026
zzhblc.info 10/9/2026
zzgarage.com 10/17/2026
zyzjgk.site 10/18/2026
zyroxi.com 10/18/2026
and 126,854 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.