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384.9 M

Domains known to webXtrend

9.7 M

New domains in the last 30 days

62.8 M

Social media profiles detected

testko.dk

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

testko.dk serves a website of its own. It answers on both IPv4 and IPv6, with a valid TLS certificate.

3,565 other domains share an IP address with it.

The most recent crawl returned the page title “Testing Systems Before Production” and 26,145 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .dk 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 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 valid Shows whether the domain has a valid SSL certificate.
Redirects 0 Number of domains that redirect to this domain.
Reverse IP 3,565 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": "testko.dk"}'

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 10/5/2026
Valid to 1/3/2027
Time until expiry 73 days

Last successful crawl

Title Testing Systems Before Production
Description (not set)
Content-Length 26,145 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
104.21.60.192 2/16/2026
172.67.200.62 2/16/2026
46.30.213.171 9/19/2024
77.111.240.11 12/11/2023
IPv6 address Last updated
2606:4700:3031:0:0:0:ac43:c83e 6/30/2026
2606:4700:3037:0:0:0:6815:3cc0 6/30/2026
2606:4700:3034:0:0:0:6815:3cc0 2/16/2026
2606:4700:3034:0:0:0:ac43:c83e 2/16/2026
2a02:2350:5:10c:805d:1c59:ea59:94ca 9/19/2024
Mail server Priority Last updated
mx1.mailpod15-cph3.g1i.one.com 10 1/1/2026
mx2.mailpod15-cph3.g1i.one.com 10 1/1/2026
mx3.mailpod15-cph3.g1i.one.com 10 1/1/2026
mx4.mailpod15-cph3.g1i.one.com 10 1/1/2026
mx1.pub.mailpod7-cph3.one.com 10 1/1/2024
Name server Last updated
april.ns.cloudflare.com 2/16/2026
fonzie.ns.cloudflare.com 2/16/2026
ns01.one.com 12/11/2023
ns02.one.com 12/11/2023

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

104.21.60.192 897 domains · here since 9/19/2026
Domain On this IP since
zytogo.cn 9/19/2026
zyotech.cn 10/12/2026
zylqorent.com 9/23/2026
zupiro.mom 9/20/2026
zuhleme.life 9/14/2026
zoterport.cc 9/23/2026
ziatogelup.com 9/25/2026
ziatogelajp88.site 9/21/2026
zhongxuanchuye.com 9/15/2026
zenoravique.world 9/12/2026
zelvariquento.com 9/23/2026
zec89.co 9/14/2026
and 884 more
172.67.200.62 896 domains · here since 9/19/2026
Domain On this IP since
zytogo.cn 9/19/2026
zyotech.cn 10/12/2026
zylqorent.com 9/23/2026
zupiro.mom 9/20/2026
zuhleme.life 9/14/2026
zoterport.cc 9/23/2026
ziatogelup.com 9/25/2026
ziatogelajp88.site 9/21/2026
zhongxuanchuye.com 9/15/2026
zenoravique.world 9/12/2026
zelvariquento.com 9/23/2026
zec89.co 9/14/2026
and 883 more
2606:4700:3031::ac43:c83e 886 domains · here since 9/19/2026
Domain On this IP since
zytogo.cn 9/19/2026
zyotech.cn 10/12/2026
zylqorent.com 9/23/2026
zupiro.mom 9/20/2026
zuhleme.life 9/14/2026
zoterport.cc 9/23/2026
ziatogelup.com 9/25/2026
ziatogelajp88.site 9/21/2026
zhongxuanchuye.com 9/15/2026
zenoravique.world 9/12/2026
zelvariquento.com 9/23/2026
zec89.co 9/14/2026
and 873 more
2606:4700:3037::6815:3cc0 886 domains · here since 9/19/2026
Domain On this IP since
zytogo.cn 9/19/2026
zyotech.cn 10/12/2026
zylqorent.com 9/23/2026
zupiro.mom 9/20/2026
zuhleme.life 9/14/2026
zoterport.cc 9/23/2026
ziatogelup.com 9/25/2026
ziatogelajp88.site 9/21/2026
zhongxuanchuye.com 9/15/2026
zenoravique.world 9/12/2026
zelvariquento.com 9/23/2026
zec89.co 9/14/2026
and 873 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.