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384.6 M

Domains known to webXtrend

9.6 M

New domains in the last 30 days

62.8 M

Social media profiles detected

authproblem.com

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

authproblem.com serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate and MX records for mail.

4,142 other domains share an IP address with it.

The most recent crawl returned the page title “SPF, DKIM & DMARC Combined Checker | AUTHPROBLEM.com” and 68,717 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .com 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 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 4,142 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": "authproblem.com"}'

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 8/16/2026
Valid to 11/14/2026
Time until expiry 24 days

Last successful crawl

Title SPF, DKIM & DMARC Combined Checker | AUTHPROBLEM.com
Description Check SPF, DKIM, and DMARC together for one domain and review sender-authentication warnings in one consolidated result page.
Content-Length 68,717 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
104.21.58.153 5/22/2026
172.67.161.58 5/22/2026
188.114.96.0 4/30/2026
188.114.97.0 4/30/2026
104.21.58.153 4/23/2026
IPv6 address Last updated
2606:4700:3032:0:0:0:ac43:a13a 6/24/2026
2606:4700:3033:0:0:0:6815:3a99 6/24/2026
2606:4700:3037:0:0:0:6815:3a99 5/22/2026
2606:4700:3037:0:0:0:ac43:a13a 5/22/2026
2a06:98c1:3120:0:0:0:0:0 4/30/2026
Mail server Priority Last updated
route3.mx.cloudflare.net 16 4/23/2026
route2.mx.cloudflare.net 52 4/23/2026
route1.mx.cloudflare.net 64 4/23/2026
Name server Last updated
cris.ns.cloudflare.com 4/23/2026
rita.ns.cloudflare.com 4/23/2026

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

104.21.58.153 1,039 domains · here since 10/9/2026
Domain On this IP since
zynux.com 9/23/2026
zortrany.ru 9/21/2026
zmontowani.com 9/18/2026
zlkstd.top 10/8/2026
zhuce6666.com 9/22/2026
zeverosikem.com 10/17/2026
zerocreation.jp 9/16/2026
zccgsxjj.com 9/20/2026
zain5gnet.com 9/18/2026
z2888.net 9/23/2026
yyyingyuandianshijubaidukan7.org.cn 10/20/2026
ywcbc.info 9/14/2026
and 1,026 more
172.67.161.58 1,039 domains · here since 10/9/2026
Domain On this IP since
zynux.com 9/23/2026
zortrany.ru 9/21/2026
zmontowani.com 9/18/2026
zlkstd.top 10/8/2026
zhuce6666.com 9/22/2026
zeverosikem.com 10/17/2026
zerocreation.jp 9/16/2026
zccgsxjj.com 9/20/2026
zain5gnet.com 9/18/2026
z2888.net 9/23/2026
yyyingyuandianshijubaidukan7.org.cn 10/20/2026
ywcbc.info 9/14/2026
and 1,026 more
2606:4700:3032::ac43:a13a 1,032 domains · here since 10/9/2026
Domain On this IP since
zynux.com 9/23/2026
zortrany.ru 9/21/2026
zmontowani.com 9/18/2026
zlkstd.top 10/8/2026
zhuce6666.com 9/22/2026
zeverosikem.com 10/17/2026
zerocreation.jp 9/16/2026
zccgsxjj.com 9/20/2026
zain5gnet.com 9/18/2026
z2888.net 9/23/2026
yyyingyuandianshijubaidukan7.org.cn 10/20/2026
ywcbc.info 9/14/2026
and 1,019 more
2606:4700:3033::6815:3a99 1,032 domains · here since 10/9/2026
Domain On this IP since
zynux.com 9/23/2026
zortrany.ru 9/21/2026
zmontowani.com 9/18/2026
zlkstd.top 10/8/2026
zhuce6666.com 9/22/2026
zeverosikem.com 10/17/2026
zerocreation.jp 9/16/2026
zccgsxjj.com 9/20/2026
zain5gnet.com 9/18/2026
z2888.net 9/23/2026
yyyingyuandianshijubaidukan7.org.cn 10/20/2026
ywcbc.info 9/14/2026
and 1,019 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.