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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

learntree.ai

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

It answers on IPv4 only.

The most recent crawl returned the page title “LearnTree | Math for STEM, Graded by Computer Algebra” and 43,915 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .ai Statistics for all domains we know under this TLD.
Has website no A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record no The domain has an MX record.
External redirect no The domain redirects to another domain.
Redirect to https no 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 no certificate Shows whether the domain has a valid SSL certificate.
Redirects 0 Number of domains that redirect to this domain.
Reverse IP 1 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": "learntree.ai"}'

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 9/6/2026
Valid to 12/5/2026
Time until expiry 41 days

Last successful crawl

Title LearnTree | Math for STEM, Graded by Computer Algebra
Description Interactive math for STEM. Your answers are checked by computer algebra, never by a language model. First course: Linear Algebra for AI/ML.
Content-Length 43,915 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
45.79.171.202 11/10/2025
162.159.140.98 4/2/2024
172.66.0.96 4/2/2024
162.255.119.181 1/21/2024
IPv6 address First seen
2606:4700:7:0:0:0:0:60 4/2/2024
2a06:98c1:58:0:0:0:0:60 4/2/2024
Mail server Priority First seen
aspmx.l.google.com 1 1/21/2024
alt1.aspmx.l.google.com 5 1/21/2024
alt2.aspmx.l.google.com 5 1/21/2024
aspmx2.googlemail.com 10 1/21/2024
aspmx3.googlemail.com 10 1/21/2024
Name server First seen
dns1.registrar-servers.com 11/10/2025
dns2.registrar-servers.com 11/10/2025
ns1.digitalocean.com 4/2/2024
ns2.digitalocean.com 4/2/2024
ns3.digitalocean.com 4/2/2024

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

45.79.171.202 1 domain · here since 9/17/2026
Domain On this IP since
No other domains on this address.

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.