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385.6 M

Domains known to webXtrend

9.9 M

New domains in the last 30 days

62.8 M

Social media profiles detected

realdev.dev

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

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

The most recent crawl returned the page title “RealDev: Real-World Coding Challenge Platform” and 78,270 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 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": "realdev.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 8/13/2026
Valid to 11/11/2026
Time until expiry 16 days

Last successful crawl

Title RealDev: Real-World Coding Challenge Platform
Description Practice real-world software engineering with hands-on coding challenges in real Docker environments and real test suites, with no AI hand-holding. Most challenges take 15 to 20 minutes.
Content-Length 78,270 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
18.172.112.123 10/22/2026
18.172.112.29 10/22/2026
18.172.112.92 10/22/2026
18.172.112.94 10/22/2026
3.13.246.102 1/30/2026
IPv6 address First seen
2600:9000:2761:2000:7:3792:ecc0:93a1 10/22/2026
2600:9000:2761:3000:7:3792:ecc0:93a1 10/22/2026
2600:9000:2761:3600:7:3792:ecc0:93a1 10/22/2026
2600:9000:2761:6200:7:3792:ecc0:93a1 10/22/2026
2600:9000:2761:9600:7:3792:ecc0:93a1 10/22/2026
Mail server Priority First seen
realdev-dev.mail.protection.outlook.com 0 2/6/2026
Name server First seen
ns-1315.awsdns-36.org 10/22/2026
ns-1837.awsdns-37.co.uk 10/22/2026
ns-260.awsdns-32.com 10/22/2026
ns-815.awsdns-37.net 10/22/2026
ns33.domaincontrol.com 10/10/2025

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

3.13.246.102 1 domain · here since 9/19/2026
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.