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385.4 M

Domains known to webXtrend

9.9 M

New domains in the last 30 days

62.7 M

Social media profiles detected

ari.io

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

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

Its busiest IP address is shared with 472,841 other domains.

The most recent crawl returned the page title “Ari Lerner — Code, math, hardware, and teaching” and 34,216 bytes of HTML. The site links to X and LinkedIn profiles.

Domain properties

Property Value Explanation
Top-level domain .io 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. yes 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 912,806 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": "ari.io"}'

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 Let's Encrypt
Valid from 9/29/2026
Valid to 12/28/2026
Time until expiry 65 days

Last successful crawl

Title Ari Lerner — Code, math, hardware, and teaching
Description Ari Lerner writes code and mathematics, builds hardware and systems, and teaches across secure AI infrastructure, systems software, and new computing models.
Content-Length 34,216 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
216.198.79.1 10/11/2026
64.29.17.1 10/11/2026
216.198.79.65 10/2/2026
64.29.17.1 10/2/2026
216.198.79.65 9/24/2026
Mail server Priority First seen
aspmx.l.google.com 1 1/8/2024
alt1.aspmx.l.google.com 5 1/8/2024
alt2.aspmx.l.google.com 5 1/8/2024
alt3.aspmx.l.google.com 10 1/8/2024
alt4.aspmx.l.google.com 10 1/8/2024
Name server First seen
ns1.vercel-dns.com 12/7/2023
ns2.vercel-dns.com 12/7/2023

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

64.29.17.1 472,842 domains · here since 10/17/2026
Domain On this IP since
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz.uk 10/9/2026
zzzshift.fun 10/20/2026
zzznaakkee.xyz 9/24/2026
zzzdevelopment.com 10/13/2026
zzzcodex.com 10/19/2026
zzyy6559.xyz 9/19/2026
zzyraai.com 9/27/2026
zzx58.cn 10/17/2026
zztraders.pk 10/15/2026
zzstudio.xin 10/13/2026
zzsfstudy.top 9/30/2026
zzpiping.org 10/3/2026
and 472,829 more
64.29.17.65 439,964 domains · here since 10/5/2026
Domain On this IP since
zzzzzzz.app 10/4/2026
zzzzas.app 10/12/2026
zzzxc.com 10/22/2026
zzzx.xyz 9/13/2026
zzzdevelopment.com 10/13/2026
zzykxx.com 9/16/2026
zzvictor.pt 9/21/2026
zzumu.com 9/14/2026
zzudle.com 10/16/2026
zztpickleball.com 10/13/2026
zzpelle.nl 10/7/2026
zzp-support.nl 10/9/2026
and 439,951 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.