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385.2 M

Domains known to webXtrend

9.8 M

New domains in the last 30 days

62.8 M

Social media profiles detected

prefactor.tech

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

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

Its busiest IP address is shared with 50,473 other domains, and 23 domains redirect to it.

The most recent crawl returned the page title “Prefactor | Agent Evaluation Runtime” and 127,413 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .tech 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 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 23 Number of domains that redirect to this domain.
Reverse IP 100,927 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": "prefactor.tech"}'

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 9/16/2026
Valid to 12/15/2026
Time until expiry 52 days

Last successful crawl

Title Prefactor | Agent Evaluation Runtime
Description The agent observability and evaluation platform for production AI agents. Prefactor continuously scores every agent (quality, hallucinations, cost) then...
Content-Length 127,413 bytes

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

DNS history

IPv4 address First seen
216.24.57.16 9/24/2026
216.24.57.18 9/24/2026
216.24.57.15 7/25/2026
216.24.57.7 7/25/2026
216.24.57.8 6/15/2026
Mail server Priority First seen
smtp.google.com 1 10/18/2024
Name server First seen
curitiba.ns.porkbun.com 1/3/2026
fortaleza.ns.porkbun.com 1/3/2026
maceio.ns.porkbun.com 1/3/2026
salvador.ns.porkbun.com 1/3/2026
ns1.dnsimple.com 10/18/2024

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
theagentplane.com 10/21/2026
prefactor.dev 10/21/2026
getprefactor.com 10/21/2026
agentidentity.com 10/20/2026
buildwithchatgpt.com 10/18/2026
agentcultures.com 10/18/2026
buildforagentkit.com 10/17/2026
getreadyforagentkit.com 10/17/2026
buildformcp.com 10/17/2026
prefactorauth.com 10/16/2026
agentproven.com 10/14/2026
mcpsetup.dev 10/13/2026
and 11 more

Reverse IP neighbours

216.24.57.16 50,474 domains · here since 9/29/2026
Domain On this IP since
zzorph.ai 9/29/2026
zzimnam.com 9/28/2026
zzgame77a.com 10/12/2026
zyvenpoker.com 9/28/2026
zytrasaas.com 9/26/2026
zytheris.ca 9/25/2026
zyrox.com.ua 9/23/2026
zyrox.app 9/25/2026
zyrotrainerai.online 9/28/2026
zyrareferrals.com 9/24/2026
zyramentalhealth.com 9/26/2026
zyrabeautybd.com 9/20/2026
and 50,461 more
216.24.57.18 50,453 domains · here since 9/29/2026
Domain On this IP since
zzorph.ai 9/29/2026
zzimnam.com 9/28/2026
zzgame77a.com 10/12/2026
zyvenpoker.com 9/28/2026
zytrasaas.com 9/26/2026
zytheris.ca 9/25/2026
zyrox.com.ua 9/23/2026
zyrox.app 9/25/2026
zyrotrainerai.online 9/28/2026
zyrareferrals.com 9/24/2026
zyramentalhealth.com 9/26/2026
zyrabeautybd.com 9/20/2026
and 50,440 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.