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382.3 M

Registered domains

9.2 M

New domains in the last 30 days

65.0 M

Social media profiles detected

zksf.org

zksf.org serves a website of its own over HTTPS. It answers on IPv4 only, with a valid TLS certificate and MX records for mail.

7,204 other domains share an IP address with it.

The most recent crawl returned the page title “Quantum Computing as a Service, with Certified Error Bars | ZKSF” and 351,106 bytes of HTML. The site links to Twitter and LinkedIn profiles. webXtrend first recorded it on .

Domain properties

Property Value Explanation
First seen 5/23/2013 Date the domain was first seen.
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 only IPv4 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 7,204 Number of domains with the same IP(s).

Detected social media networks

Last successful crawl

Title Quantum Computing as a Service, with Certified Error Bars | ZKSF
Description Quantum computing as a service: run circuits from 40 to 5,000 qubits for cents on CPU, GPU and real quantum hardware. Every approximate result carries a certified error bound you can check yourself.
Content-Length 351,106 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

Last SSL certificate

Issuer Amazon
Valid from 7/5/2026
Valid to 1/19/2027
Time until expiry 107 days

DNS history

IPv4 address Last updated
65.9.130.128 7/28/2026
65.9.130.29 7/28/2026
65.9.130.33 7/28/2026
65.9.130.49 7/28/2026
65.9.175.108 7/6/2026
Mail server Priority Last updated
mx.zoho.com 10 7/14/2026
mx2.zoho.com 20 7/14/2026
mx3.zoho.com 50 7/14/2026
Name server Last updated
ns-1198.awsdns-21.org 7/6/2026
ns-131.awsdns-16.com 7/6/2026
ns-1668.awsdns-16.co.uk 7/6/2026
ns-894.awsdns-47.net 7/6/2026
ns61.domaincontrol.com 11/21/2025

Last 5 redirect domains

No domains found.

Reverse IP neighbours

65.9.130.33 2,491 domains · here since 9/15/2026
Domain On this IP since
zynthosfile.com 9/16/2026
zupertiendaje.com 9/20/2026
zupdx.com 9/17/2026
zuicy.ai 9/22/2026
zubbies.au 9/18/2026
zonaelectronica.org 9/19/2026
zolobox.com 9/21/2026
zilongyang.com 9/12/2026
zibran.ro 9/13/2026
zhaketmailer.ir 9/15/2026
zeuhyrpove.com 9/22/2026
zendxsoul.com 9/19/2026
and 2,478 more
65.9.130.49 1,622 domains · here since 9/15/2026
Domain On this IP since
zvab.com 9/20/2026
zuizttcrf.com 9/21/2026
zriukmffe.com 9/14/2026
znsrc.com 9/22/2026
zippyq.app 9/18/2026
zinc.dev 9/14/2026
zerosignal.info 9/22/2026
zerosai2021.com 9/14/2026
zeromodel.org 9/14/2026
zenthree.net 9/13/2026
zbjjy.com 9/16/2026
zakmort.com 9/13/2026
and 1,609 more
65.9.130.29 1,558 domains · here since 9/15/2026
Domain On this IP since
zzzy-bet.com 9/23/2026
zxtxsq.com 9/28/2026
zvab.com 9/20/2026
zuniroad.com 9/14/2026
zuizttcrf.com 9/21/2026
zuffytown.com 9/23/2026
zriukmffe.com 9/14/2026
zot-mall.com 9/19/2026
zom-mall.com 9/19/2026
zod-mall.com 9/17/2026
zimplepay.io 9/14/2026
zeus4dlogin.org 9/19/2026
and 1,545 more
65.9.130.128 1,533 domains · here since 9/15/2026
Domain On this IP since
zyov61ex.com 10/1/2026
zxtxsq.com 9/28/2026
zt777f.com 9/28/2026
zotlo.com 9/17/2026
zonagolec.com 10/1/2026
znytra.com 9/20/2026
zithromaximum.com 9/16/2026
zinc.dev 9/14/2026
zhuifan100.com 9/13/2026
zgbbjyw.com 9/12/2026
zeuspulse.com 9/16/2026
zephyraegisn.click 9/23/2026
and 1,520 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.