Dive into our data, search now!

We offer robust APIs and data services for domainers, data crawlers, security teams and many more.

383.8 M

Domains known to webXtrend

9.3 M

New domains in the last 30 days

62.4 M

Social media profiles detected

opensource.org

opensource.org serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate and MX records for mail.

12 other domains share an IP address with it, and 8 domains redirect to it.

The most recent crawl returned the page title “Open Source Initiative – The steward of the Open Source Definition, setting the foundation for the Open Source Software...” and 216,847 bytes of HTML. The site links to X, LinkedIn and Reddit profiles.

Domain properties

Property Value Explanation
Top-level domain .org 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 Both Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate valid Shows whether the domain has a valid SSL certificate.
Redirects 8 Number of domains that redirect to this domain.
Reverse IP 12 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": "opensource.org"}'

Create a free account Read the API docs

Similar websites

Website Similarity
Open Source AI Association
87 %
Dirk Riehle's Industry and Research Publications – Best of open source, inner source, and product strategy
Best of open source, inner source, and product strategy
86 %
Outercurve - Open Source Software | News & everything else...
Open Source Software is the key of our survival. Come in and find out why. Our goal is to raise awareness and for everyone to adap OSS in their lives!
85 %
LLM OSS
Open source large language model tooling
85 %
changweiyan.net – Empower your inner warrior
83 %
Lars Marowsky-Brée on FLOSS, Digital Sovereignty, and AI | OpenSourcerer.eu
Lars Marowsky-Brée on Free, Libre, and Open Source, Software Engineering, and IT
83 %
Free & Open Source Life
83 %
WhiteSource's Products and Solutions | OpenSourceProtection.com
WhiteSource advanced technology makes it easy to develop secure software without compromising on speed or agility.
83 %
pugnaciousmarketing.com – Powerful Marketing Solutions Here
82 %
CONTRIBUTING.md - Open Source Guides
Open Source Guides
82 %
What Is Open Source? | TL;DR FOSS
Your simple introduction to what free and open source software means
82 %
Linux, Open Source & Unrelated Topics
Embedded Linux & Open Source Professional
82 %
Expert Data Systems – Handholding Comes Standard
81 %
Openage.net
81 %
Open Source – Software, Linux
81 %
Open Source Projects
81 %
Post Open
Building the successor to Open Source
81 %
OpenSource.net – Powered by open, united by community
80 %
OSS Watch - independent expert advice on open source software
Independent experts on free software, open source software, and open source hardware based at the University of Oxford
80 %
Open ELIS Foundation – Open Source Laboratory Software
80 %

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 9/4/2026
Valid to 12/3/2026
Time until expiry 48 days

Last successful crawl

Title Open Source Initiative – The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.
Description (not set)
Content-Length 216,847 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
104.20.30.15 10/10/2025
172.66.171.169 10/10/2025
104.22.64.197 12/20/2024
104.22.65.197 12/20/2024
172.67.26.198 12/20/2024
IPv6 address Last updated
2606:4700:10:0:0:0:6814:1e0f 10/10/2025
2606:4700:10:0:0:0:ac42:aba9 10/10/2025
2606:4700:10:0:0:0:6816:40c5 12/20/2024
2606:4700:10:0:0:0:6816:41c5 12/20/2024
2606:4700:10:0:0:0:ac43:1ac6 12/20/2024
Mail server Priority Last updated
aspmx.l.google.com 1 12/31/2023
alt1.aspmx.l.google.com 5 12/31/2023
alt2.aspmx.l.google.com 5 12/31/2023
aspmx2.googlemail.com 10 12/31/2023
aspmx3.googlemail.com 10 12/31/2023
Name server Last updated
alice.ns.cloudflare.com 12/10/2023
arturo.ns.cloudflare.com 12/10/2023

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
bsd-license.org 10/9/2026
towntech.lv 10/8/2026
devicehandbook.com 12/6/2024
advantagehr.org 9/7/2024
byresolved.com 8/16/2024
beverlysnaturalhealth.com 1/13/2024
opensourceme.org 12/13/2023
digico.group 12/13/2023

Reverse IP neighbours

2606:4700:10::6814:1e0f 3 domains · here since 9/23/2026
Domain On this IP since
tachogram.com 9/15/2026
svetlokadanzs.cz 9/21/2026
2606:4700:10::ac42:aba9 3 domains · here since 9/23/2026
Domain On this IP since
tachogram.com 9/15/2026
svetlokadanzs.cz 9/21/2026
104.20.30.15 3 domains · here since 9/23/2026
Domain On this IP since
tachogram.com 9/15/2026
svetlokadanzs.cz 9/21/2026
172.66.171.169 3 domains · here since 9/23/2026
Domain On this IP since
tachogram.com 9/15/2026
svetlokadanzs.cz 9/21/2026

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.