Dive into our data, search now!

We offer robust APIs and data services for domainers, data crawlers, security teams and many more.

384.5 M

Domains known to webXtrend

9.4 M

New domains in the last 30 days

62.8 M

Social media profiles detected

callstack.io

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

It answers on both IPv4 and IPv6, with MX records for mail.

4,004 other domains share an IP address with it.

Domain properties

Property Value Explanation
Top-level domain .io Statistics for all domains we know under this TLD.
Has website no 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 yes 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 no certificate Shows whether the domain has a valid SSL certificate.
Redirects 0 Number of domains that redirect to this domain.
Reverse IP 4,004 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": "callstack.io"}'

Create a free account Read the API docs

Detected social media networks

No social networks found on this website.

Similar websites

We have not analysed the start page of this domain yet, so we cannot compare it with other websites.

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

No certificate data available for this domain.

Last successful crawl

No crawl data available for this domain.

DNS history

IPv4 address Last updated
104.21.79.26 12/9/2023
172.67.140.234 12/9/2023
IPv6 address Last updated
2606:4700:3031:0:0:0:6815:4f1a 6/26/2026
2606:4700:3037:0:0:0:ac43:8cea 6/26/2026
2606:4700:3031:0:0:0:ac43:8cea 12/9/2023
2606:4700:3034:0:0:0:6815:4f1a 12/9/2023
Mail server Priority Last updated
callstack-io.mail.protection.outlook.com 0 7/20/2026
aspmx.l.google.com 10 12/30/2023
alt1.aspmx.l.google.com 20 12/30/2023
alt2.aspmx.l.google.com 30 12/30/2023
aspmx2.googlemail.com 40 12/30/2023
Name server Last updated
joel.ns.cloudflare.com 12/9/2023
zita.ns.cloudflare.com 12/9/2023

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

104.21.79.26 1,009 domains · here since 9/13/2026
Domain On this IP since
zzguyangkang.com 10/3/2026
zyvorar.net 10/18/2026
zxcfwang.cn 9/18/2026
zw41o.sbs 9/16/2026
zum9t.com 10/19/2026
zoohub.vip 9/14/2026
zoiia.com 9/12/2026
zn9um6.sbs 9/14/2026
zjcsgz.com 9/19/2026
zilgrei.eu 10/8/2026
zhoushengdao.top 9/21/2026
zenturpro365.com 9/12/2026
and 996 more
172.67.140.234 1,009 domains · here since 9/13/2026
Domain On this IP since
zzguyangkang.com 10/3/2026
zyvorar.net 10/18/2026
zxcfwang.cn 9/18/2026
zw41o.sbs 9/16/2026
zum9t.com 10/19/2026
zoohub.vip 9/14/2026
zoiia.com 9/12/2026
zn9um6.sbs 9/14/2026
zjcsgz.com 9/19/2026
zilgrei.eu 10/8/2026
zhoushengdao.top 9/21/2026
zenturpro365.com 9/12/2026
and 996 more
2606:4700:3031::6815:4f1a 993 domains · here since 9/13/2026
Domain On this IP since
zzguyangkang.com 10/3/2026
zyvorar.net 10/18/2026
zxcfwang.cn 9/18/2026
zw41o.sbs 9/16/2026
zum9t.com 10/19/2026
zoohub.vip 9/14/2026
zoiia.com 9/12/2026
zn9um6.sbs 9/14/2026
zjcsgz.com 9/19/2026
zilgrei.eu 10/8/2026
zhoushengdao.top 9/21/2026
zenturpro365.com 9/12/2026
and 980 more
2606:4700:3037::ac43:8cea 993 domains · here since 9/13/2026
Domain On this IP since
zzguyangkang.com 10/3/2026
zyvorar.net 10/18/2026
zxcfwang.cn 9/18/2026
zw41o.sbs 9/16/2026
zum9t.com 10/19/2026
zoohub.vip 9/14/2026
zoiia.com 9/12/2026
zn9um6.sbs 9/14/2026
zjcsgz.com 9/19/2026
zilgrei.eu 10/8/2026
zhoushengdao.top 9/21/2026
zenturpro365.com 9/12/2026
and 980 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.