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385.2 M

Domains known to webXtrend

9.8 M

New domains in the last 30 days

62.8 M

Social media profiles detected

subnetcalc.dev

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

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

391 other domains share an IP address with it.

The most recent crawl returned the page title “Subnet Calculator for IPv4 and IPv6 – SubnetCalc” and 27,736 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 391 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": "subnetcalc.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 Google Trust Services
Valid from 10/2/2026
Valid to 12/31/2026
Time until expiry 69 days

Last successful crawl

Title Subnet Calculator for IPv4 and IPv6 – SubnetCalc
Description Subnet calculator for IPv4 and IPv6: network, broadcast, netmask, wildcard, host range and a clickable binary breakdown. Accepts CIDR, netmask or wildcard.
Content-Length 27,736 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
172.66.44.111 10/10/2026
172.66.47.145 10/10/2026
IPv6 address Last updated
2606:4700:310c:0:0:0:ac42:2c6f 10/10/2026
2606:4700:310c:0:0:0:ac42:2f91 10/10/2026
Name server Last updated
ashton.ns.cloudflare.com 10/10/2026
sydney.ns.cloudflare.com 10/10/2026

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

2606:4700:310c::ac42:2c6f 98 domains · here since 10/18/2026
Domain On this IP since
yuriscan.top 9/15/2026
yizhixiaowuya.cn 9/13/2026
xelluf.com 9/17/2026
winrmterbaik.site 10/16/2026
vt8wins1.store 9/12/2026
vkteam.us 9/17/2026
vitalglen.online 10/8/2026
v21cinema.site 9/15/2026
turkishjam.com 9/20/2026
tradequant.app 9/18/2026
tkbtop8gold1.store 10/2/2026
thumbnail.solutions 9/17/2026
and 85 more
2606:4700:310c::ac42:2f91 98 domains · here since 10/18/2026
Domain On this IP since
yuriscan.top 9/15/2026
yizhixiaowuya.cn 9/13/2026
xelluf.com 9/17/2026
winrmterbaik.site 10/16/2026
vt8wins1.store 9/12/2026
vkteam.us 9/17/2026
vitalglen.online 10/8/2026
v21cinema.site 9/15/2026
turkishjam.com 9/20/2026
tradequant.app 9/18/2026
tkbtop8gold1.store 10/2/2026
thumbnail.solutions 9/17/2026
and 85 more
172.66.47.145 98 domains · here since 10/18/2026
Domain On this IP since
yuriscan.top 9/15/2026
yizhixiaowuya.cn 9/13/2026
xelluf.com 9/17/2026
winrmterbaik.site 10/16/2026
vt8wins1.store 9/12/2026
vkteam.us 9/17/2026
vitalglen.online 10/8/2026
v21cinema.site 9/15/2026
turkishjam.com 9/20/2026
tradequant.app 9/18/2026
tkbtop8gold1.store 10/2/2026
thumbnail.solutions 9/17/2026
and 85 more
172.66.44.111 97 domains · here since 10/18/2026
Domain On this IP since
yuriscan.top 9/15/2026
yizhixiaowuya.cn 9/13/2026
xelluf.com 9/17/2026
winrmterbaik.site 10/16/2026
vt8wins1.store 9/12/2026
vkteam.us 9/17/2026
vitalglen.online 10/8/2026
v21cinema.site 9/15/2026
turkishjam.com 9/20/2026
tradequant.app 9/18/2026
tkbtop8gold1.store 10/2/2026
thumbnail.solutions 9/17/2026
and 84 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.