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384.5 M

Domains known to webXtrend

9.4 M

New domains in the last 30 days

62.6 M

Social media profiles detected

truecourse.dev

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

871,600 other domains share an IP address with it.

The most recent crawl returned the page title “TrueCourse · AI writes the code. You own what it does.” and 240,949 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .dev 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 0 Number of domains that redirect to this domain.
Reverse IP 871,600 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": "truecourse.dev"}'

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 9/10/2026
Valid to 12/9/2026
Time until expiry 51 days

Last successful crawl

Title TrueCourse · AI writes the code. You own what it does.
Description TrueCourse is the IDE for product owners. It reads the requirements you own, proves each one against the running product, and shows you section by section what holds, what is broken and what is not yet covered, kept current as the product changes.
Content-Length 240,949 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
216.198.79.65 10/10/2026
64.29.17.65 10/10/2026
216.198.79.1 10/2/2026
64.29.17.1 10/2/2026
216.198.79.65 9/23/2026
IPv6 address Last updated
2606:4700:3033:0:0:0:6815:3566 5/7/2026
2606:4700:3033:0:0:0:ac43:d3fe 5/7/2026
2a06:98c1:3120:0:0:0:0:0 4/29/2026
2a06:98c1:3121:0:0:0:0:0 4/29/2026
2606:4700:3033:0:0:0:6815:3566 4/2/2026
Mail server Priority Last updated
aspmx.l.google.com 1 5/7/2026
alt1.aspmx.l.google.com 5 5/7/2026
alt2.aspmx.l.google.com 5 5/7/2026
alt3.aspmx.l.google.com 10 5/7/2026
alt4.aspmx.l.google.com 10 5/7/2026
Name server Last updated
bowen.ns.cloudflare.com 4/2/2026
magnolia.ns.cloudflare.com 4/2/2026

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

64.29.17.65 436,521 domains · here since 10/4/2026
Domain On this IP since
zzzzzzz.app 10/4/2026
zzzzas.app 10/12/2026
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
zzoo.in 9/27/2026
and 436,508 more
216.198.79.65 435,079 domains · here since 10/4/2026
Domain On this IP since
zzzzzzz.app 10/15/2026
zzzzdevelopment.com 10/13/2026
zzzx.xyz 9/24/2026
zzzou.app 10/11/2026
zzznaakkee.xyz 10/17/2026
zzyraai.com 9/27/2026
zzyde.com 9/13/2026
zzvictor.pt 9/21/2026
zzumu.com 9/14/2026
zzudle.com 9/23/2026
zztpickleball.com 10/13/2026
zzsfstudy.top 10/11/2026
and 435,066 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.