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383.8 M

Domains known to webXtrend

9.3 M

New domains in the last 30 days

62.4 M

Social media profiles detected

postquantum.com

postquantum.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.

1,066 other domains share an IP address with it, and 82 domains redirect to it.

The most recent crawl returned the page title “Post-Quantum, Quantum Computing, Quantum Security, PQC” and 233,791 bytes of HTML. The site links to X, WhatsApp, LinkedIn and Telegram profiles.

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 82 Number of domains that redirect to this domain.
Reverse IP 1,066 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": "postquantum.com"}'

Create a free account Read the API docs

Detected social media networks

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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 9/5/2026
Valid to 12/4/2026
Time until expiry 48 days

Last successful crawl

Title Post-Quantum, Quantum Computing, Quantum Security, PQC
Description PostQuantum.com - Marin Ivezic - Articles and news on Quantum Computing, Quantum Security, Post-Quantum, Q-Day, Quantum Cybersecurity
Content-Length 233,791 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
104.26.8.75 10/5/2026
104.26.9.75 10/5/2026
172.67.69.130 10/5/2026
172.66.40.128 9/28/2024
172.66.43.128 9/28/2024
IPv6 address Last updated
2606:4700:20:0:0:0:681a:84b 10/5/2026
2606:4700:20:0:0:0:681a:94b 10/5/2026
2606:4700:20:0:0:0:ac43:4582 10/5/2026
2606:4700:3108:0:0:0:ac42:2880 9/28/2024
2606:4700:3108:0:0:0:ac42:2b80 9/28/2024
Mail server Priority Last updated
route1.mx.cloudflare.net 32 3/10/2025
route3.mx.cloudflare.net 63 3/10/2025
route2.mx.cloudflare.net 73 3/10/2025
smtp.secureserver.net 0 12/31/2023
mailstore1.secureserver.net 10 12/31/2023
Name server Last updated
jack.ns.cloudflare.com 5/29/2024
olga.ns.cloudflare.com 5/29/2024
ns53.domaincontrol.com 12/10/2023
ns54.domaincontrol.com 12/10/2023

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

Domain Last seen
ivezich.org 10/16/2026
kinetic-cyber.org 10/15/2026
qday.org 10/15/2026
grunf.net 10/15/2026
ivezic.us 10/15/2026
kineticcyber.org 10/15/2026
marinivezic.com 10/15/2026
postquantum.ventures 10/15/2026
ivezic.ai 10/14/2026
postquantum.news 10/14/2026
futureofleadership.com 10/13/2026
q-day.info 10/13/2026
and 70 more

Reverse IP neighbours

104.26.8.75 180 domains · here since 10/5/2026
Domain On this IP since
zzzdna.com 9/12/2026
yourskyhi.com 9/23/2026
wordwriter.io 9/18/2026
wendizww.com 9/12/2026
webtekno.com 9/22/2026
wanderlustmagazine.com 9/19/2026
voyasure.com 9/18/2026
viatous.com 9/20/2026
veroit.com.br 9/19/2026
venture.cc 9/14/2026
vavegame.io 9/17/2026
valetplatform.com 9/12/2026
and 167 more
104.26.9.75 179 domains · here since 10/5/2026
Domain On this IP since
zzzdna.com 9/12/2026
yourskyhi.com 9/23/2026
wordwriter.io 9/18/2026
webtekno.com 9/22/2026
wanderlustmagazine.com 9/19/2026
voyasure.com 9/18/2026
viatous.com 9/20/2026
veroit.com.br 9/19/2026
venture.cc 9/14/2026
vavegame.io 9/17/2026
valetplatform.com 9/12/2026
umitenki.jp 9/23/2026
and 166 more
172.67.69.130 179 domains · here since 10/5/2026
Domain On this IP since
zzzdna.com 9/12/2026
yourskyhi.com 9/23/2026
wordwriter.io 9/18/2026
webtekno.com 9/22/2026
wanderlustmagazine.com 9/19/2026
voyasure.com 9/18/2026
viatous.com 9/20/2026
veroit.com.br 9/19/2026
venture.cc 9/14/2026
vavegame.io 9/17/2026
valetplatform.com 9/12/2026
umitenki.jp 9/23/2026
and 166 more
2606:4700:20::681a:84b 176 domains · here since 10/5/2026
Domain On this IP since
zzzdna.com 9/12/2026
yourskyhi.com 9/23/2026
wordwriter.io 9/18/2026
webtekno.com 9/22/2026
wanderlustmagazine.com 9/19/2026
voyasure.com 9/18/2026
viatous.com 9/20/2026
veroit.com.br 9/19/2026
venture.cc 9/14/2026
vavegame.io 9/17/2026
valetplatform.com 9/12/2026
umitenki.jp 9/23/2026
and 163 more
2606:4700:20::681a:94b 176 domains · here since 10/5/2026
Domain On this IP since
zzzdna.com 9/12/2026
yourskyhi.com 9/23/2026
wordwriter.io 9/18/2026
webtekno.com 9/22/2026
wanderlustmagazine.com 9/19/2026
voyasure.com 9/18/2026
viatous.com 9/20/2026
veroit.com.br 9/19/2026
venture.cc 9/14/2026
vavegame.io 9/17/2026
valetplatform.com 9/12/2026
umitenki.jp 9/23/2026
and 163 more
2606:4700:20::ac43:4582 176 domains · here since 10/5/2026
Domain On this IP since
zzzdna.com 9/12/2026
yourskyhi.com 9/23/2026
wordwriter.io 9/18/2026
webtekno.com 9/22/2026
wanderlustmagazine.com 9/19/2026
voyasure.com 9/18/2026
viatous.com 9/20/2026
veroit.com.br 9/19/2026
venture.cc 9/14/2026
vavegame.io 9/17/2026
valetplatform.com 9/12/2026
umitenki.jp 9/23/2026
and 163 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.