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https://www.namecoin.org/
Cuba
Country
AS27725
Network
April 05, 2025, 02:29 PM UTC
Date & Time
Websites
Websites
Web Connectivity Test 
Runtime: 7.5s
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On April 05, 2025, 02:29 PM UTC, https://www.namecoin.org/ was accessible when tested on AS27725 in Cuba.

Failures

HTTP Experiment
null
DNS Experiment
null
Control
null

DNS Queries

Resolver:
200.55.128.210
Query:
IN A www.namecoin.org
Engine:
system
Name
Class
TTL
Type
DATA
@
IN
A
91.219.237.223

TCP Connections

Connection to 91.219.237.223:443 succeeded.

HTTP Requests

URL
GET https://www.namecoin.org/
Response Headers
Accept-Ranges:
bytes
Connection:
keep-alive
Content-Length:
20629
Content-Security-Policy:
base-uri 'none'; default-src https:; form-action 'none'; frame-ancestors 'none'; img-src 'self'; media-src 'self' www.namecoin.org; object-src 'none'; script-src 'self'; style-src 'self'
Content-Type:
text/html
Date:
Sat, 05 Apr 2025 14:29:34 GMT
Etag:
"67e9682b-5095"
Last-Modified:
Sun, 30 Mar 2025 15:50:03 GMT
Onion-Location:
https://www.rw6nbpjrmcpdxszn3air4bt7t75rpz4cp3c2kbdu72ptua57tzvin4id.onion/
Referrer-Policy:
no-referrer
Server:
nginx
Strict-Transport-Security:
max-age=63072000; includeSubDomains; preload
X-Content-Type-Options:
nosniff
X-Frame-Options:
DENY
X-Xss-Protection:
1; mode=block
Response Body
<!DOCTYPE html>
<html class="nojs">

  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width initial-scale=1" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <title>Namecoin</title>
    <!--<meta name="description" content="Write an awesome description for your new site here. You can edit this line in _config.yml. It will appear in your document head meta (for Google search results) and in your feed.xml site description.
">-->

    <link href="/css/bootstrap.min.css" rel="stylesheet">

    <link href="/css/style.css" rel="stylesheet">
    
    <link rel="canonical" href="https://www.namecoin.org/">
    <link rel="alternate" type="application/rss+xml" title="Namecoin News" href="/feed.rss"/>

    <link rel="icon" href='/images/namecoin-coin_100px.png' sizes="100x100" type="image/png">
    <link rel="icon" href='/images/namecoin-coin_200px.png' sizes="200x200" type="image/png">
    <link rel="icon" href='/images/namecoin-coin.svg' sizes="any" type="image/svg+xml">

    <script src="/js/jquery-2.2.4.min.js"></script>
    <script src="/js/bootstrap.min.js"></script>
    <script src="/js/remove-nojs.js"></script>
</head>


  <body>

    <header class="site-header">

        <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
            <div class="container-fluid">
                <div class="navbar-header">
                    <a class="navbar-brand" href='/'><img src='/images/logo.png' alt="Namecoin" /></a>
                </div>
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-collapse" tabindex="">
                    <span class="sr-only">Toggle navigation</span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <div class="navbar-collapse collapse" id="navbar-collapse">
                <ul class="nav navbar-nav navbar-left">
                    <li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" tabindex="">Get Started</a>
                        <ul class="dropdown-menu">
                            <li><a href='/download/'>Download</a></li>
                            <li><a href='/get-started/name-wallets/'>Name Wallets</a></li>
                            <li><a href='/get-started/get-namecoins/'>Get Namecoins</a></li>
                            <li><a href='/docs/name-owners/'>Docs for Domain Owners</a></li>
                        </ul>
                    </li>
                    <li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" tabindex="">Dot-Bit</a>
                        <ul class="dropdown-menu">
                            <li><a href='/dot-bit/'>Home</a></li>
                            <li><a href='/dot-bit/browsing-instructions/'>Browsing Instructions</a></li>
                            <li><a href='/dot-bit/security-model/'>Security Model</a></li>
                        </ul>
                    </li>
                    <li><a href='/docs/faq/'>FAQ</a></li>
                    <li class="dropdown"><a class="dropdown-toggle" data-toggle="dropdown" tabindex="">Resources</a>
                        <ul class="dropdown-menu">
                            <li><a href='/resources/chat/'>Matrix/IRC Chat</a></li>
                            <li><a href="https://forum.namecoin.org">Forum&#10138;</a></li>
                            <li><a href='/resources/presentations/'>Presentations</a></li>
                            <li><a href='/explorers/'>Explorers</a></li>
                            <li><a href='https://metrics.namecoin.org/'>Metrics</a></li>
                            <li><a href='/resources/whitepaper/'>Whitepaper</a></li>
                            <li><a href="https://github.com/namecoin/meta/blob/master/roadmap.md">Roadmap&#10138;</a></li>
                        </ul>
                    </li>
                    <li><a href='/team/'>Team</a></li>
                    <li><a href='/news/'>News</a></li>
                </ul>
                <ul class="nav navbar-nav navbar-right">
                    <li><a href='/contribute/'>Contribute</a></li>
                </ul>
                </div>
            </div>
        </nav>

</header>

<div id="fancy-graphic"><div class="container-fluid"><p id="tagline">
<span id="default-tagline">

<strong>Against<br />censorship.</strong>
</span>

    <span class="candidate-tagline" hidden>
        <strong>In information</strong><br />we <strong>trust</strong>.
    </span>

    <span class="candidate-tagline" hidden>
        A <strong>trust anchor</strong><br />for the Internet.
    </span>

    <span class="candidate-tagline" hidden>
        <strong>Against<br />censorship.</strong>
    </span>

    <span class="candidate-tagline" hidden>
        <strong>Supporting<br />free speech.</strong>
    </span>

    <span class="candidate-tagline" hidden>
        Decentralized<br /><strong>secure</strong> names.
    </span>

    <span class="candidate-tagline" hidden>
        <strong>Decentralize</strong><br>all the things!
    </span>

    <span class="candidate-tagline" hidden>
        <strong>Freedom</strong><br>of information.
    </span>

</p></div></div>


    <div id="content">
      <div class="container-fluid">
        <div class="post">

  <header class="post-header">
    <h1 class="post-title">Namecoin</h1>
  </header>

  <article class="post-content">
    
<p><strong>Namecoin</strong> is an experimental open-source technology which improves decentralization, security, censorship resistance, privacy, and speed of certain components of the Internet infrastructure such as DNS and identities.</p>

<p>(For the technically minded, Namecoin is a key/value pair registration and transfer system based on the Bitcoin technology.)</p>

<p><em>Bitcoin frees money – Namecoin frees DNS, identities, and other technologies.</em></p>

<div class="row">

  <div class="col-md-6">

    <h2 id="what-can-namecoin-be-used-for">What can Namecoin be used for?</h2>

    <ul>
      <li>Protect free-speech rights online by making the web more resistant to censorship.</li>
      <li>Human-meaningful Tor .onion domains.</li>
      <li>Decentralized TLS (HTTPS) certificate validation, backed by blockchain consensus.</li>
      <li>Access websites using the .bit top-level domain.</li>
      <li>Attach identity information such as GPG and OTR keys and email, Bitcoin, and Bitmessage addresses to an identity of your choice.</li>
    </ul>

  </div>

  <div class="col-md-6">

    <h2 id="what-does-namecoin-do-under-the-hood">What does Namecoin do under the hood?</h2>

    <ul>
      <li>Securely record and transfer arbitrary names (keys).</li>
      <li>Attach a value (data) to the names (up to 520 bytes).</li>
      <li>Transact the digital currency namecoins (NMC).</li>
      <li>Like bitcoins, Namecoin names are difficult to censor or seize.</li>
      <li>Lookups do not generate network traffic (improves privacy).</li>
    </ul>

    <p><strong>Namecoin</strong> was the first fork of <a href="https://bitcoin.org">Bitcoin</a> and still is one of the most innovative “altcoins”.  It was first to implement <a href="https://bitcoin.stackexchange.com/questions/273/how-does-merged-mining-work">merged mining</a> and a <a href="/dot-bit/">decentralized DNS</a>.  <strong>Namecoin</strong> was also the first solution to <a href="https://en.wikipedia.org/wiki/Zooko%27s_triangle">Zooko’s Triangle</a>, the long-standing problem of producing a naming system that is simultaneously secure, decentralized, and human-meaningful.</p>

  </div>
</div>

<h2 id="more-information">More Information</h2>

<ul>
  <li><a href="https://nameid.org">Namecoin Identities</a></li>
  <li><a href="/dot-bit/">.bit DNS</a></li>
</ul>

<h2 id="news">News</h2>

<p>(<a href="/feed.rss">RSS Feed</a>)</p>

<h3 id="enhancing-proxy-leak-detection-with-sockstrace-from-ptrace-to-seccomp-notify"><a href="/2025/03/30/sockstrace-seccomp-notify.html">Enhancing Proxy Leak Detection with SocksTrace: From ptrace to seccomp notify</a></h3>

<p><strong><a href="/2025/03/30/sockstrace-seccomp-notify.html">2025-03-30</a></strong> Initially, SocksTrace relied on <code class="highlighter-rouge">ptrace</code> to trace connect syscalls. While <code class="highlighter-rouge">ptrace</code> works well for simple programs, it wasn’t practical for high-performance applications, especially browsers.</p>

<p><a href="/2025/03/30/sockstrace-seccomp-notify.html">Read more…</a></p>

<h3 id="namecoin-receives-tls-and-anonymity-research-funding-from-power-up-privacy-and-nlnet-foundations-ngi0-core-fund"><a href="/2025/03/30/namecoin-tls-anonymity-research-funding-power-up-privacy-nlnet-ngi0-core.html">Namecoin Receives TLS and Anonymity Research Funding from Power Up Privacy and NLnet Foundation’s NGI0 Core Fund</a></h3>

<p><strong><a href="/2025/03/30/namecoin-tls-anonymity-research-funding-power-up-privacy-nlnet-ngi0-core.html">2025-03-30</a></strong> We’re happy to announce that Namecoin is receiving three new grants:</p>

<p><a href="/2025/03/30/namecoin-tls-anonymity-research-funding-power-up-privacy-nlnet-ngi0-core.html">Read more…</a></p>

<h3 id="38c3-summary"><a href="/2025/03/30/38c3-summary.html">38C3 Summary</a></h3>

<p><strong><a href="/2025/03/30/38c3-summary.html">2025-03-30</a></strong> As was <a href="/2024/12/16/38c3-fosdem-2025.html">previously announced</a>, several developers represented Namecoin at <a href="https://events.ccc.de/congress/2024/wiki/index.php/Main_Page">38C3</a> in Leipzig, Germany. You know the drill by now: we had a lot of conversations with other attendees, and we won’t be publicly disclosing the content of those conversations, because I want people to be able to talk to us at conferences without worrying that off-the-cuff comments will be broadcast to the public. That said, a practical result of one of those conversations should be getting its own announcement in the next day or two.</p>

<p><a href="/2025/03/30/38c3-summary.html">Read more…</a></p>

<h3 id="namecoin-will-be-at-38c3-and-fosdem-2025"><a href="/2024/12/16/38c3-fosdem-2025.html">Namecoin will be at 38C3 and FOSDEM 2025</a></h3>

<p><strong><a href="/2024/12/16/38c3-fosdem-2025.html">2024-12-16</a></strong> We’re happy to announce that at least three Namecoin developers will be at <a href="https://events.ccc.de/congress/2024/wiki/index.php/Main_Page">38C3 (the 38th Chaos Communication Congress)</a> in Hamburg, December 27-30. Additionally, at least two Namecoin developers will be at <a href="https://www.fosdem.org/2025/">FOSDEM 2025</a> in Brussels, February 1-2.</p>

<p><a href="/2024/12/16/38c3-fosdem-2025.html">Read more…</a></p>

<h3 id="namecoin-core-280-almost-released"><a href="/2024/12/15/namecoin-core-28.0-released.html">Namecoin Core 28.0 (Almost) Released</a></h3>

<p><strong><a href="/2024/12/15/namecoin-core-28.0-released.html">2024-12-15</a></strong> Namecoin Core 28.0 has been released on the <a href="/download/betas/#namecoin-core">Beta Downloads page</a>.</p>

<p><a href="/2024/12/15/namecoin-core-28.0-released.html">Read more…</a></p>

<h3 id="namecoins-sockstrace-receives-funding-from-nlnet-foundations-ngi0-core-fund"><a href="/2024/10/21/sockstrace-funding-nlnet-ngi0-core.html">Namecoin’s SocksTrace Receives Funding from NLnet Foundation’s NGI0 Core Fund</a></h3>

<p><strong><a href="/2024/10/21/sockstrace-funding-nlnet-ngi0-core.html">2024-10-21</a></strong> We’re happy to announce that Namecoin is <a href="https://nlnet.nl/news/2024/20241003-announcing-Core-call.html">receiving</a> additional funding from NLnet Foundation’s NGI0 Core (Next Generation Internet: Zero Core) Fund. If you’re unfamiliar with NLnet, you might want to read <a href="https://nlnet.nl/foundation/">about NLnet Foundation</a>, or just take a look at <a href="https://nlnet.nl/thema/index.html">the projects they’ve funded over the years</a> (you might see some familiar names).</p>

<p><a href="/2024/10/21/sockstrace-funding-nlnet-ngi0-core.html">Read more…</a></p>

<h3 id="tor-meeting-2024--gpn-22--monerokon-4-summary-updated"><a href="/2024/07/24/tor-2024-gpn-22-monerokon-4-summary.html">Tor Meeting 2024 / GPN 22 / MoneroKon 4 Summary (UPDATED)</a></h3>

<p><strong><a href="/2024/07/24/tor-2024-gpn-22-monerokon-4-summary.html">2024-07-24</a></strong> As was <a href="/2024/05/15/tor-2024-gpn-22-monerokon-4.html">previously announced</a>, Rose, yanmaani, Hugo, and I (Jeremy Rand) represented Namecoin at three conferences in Europe. This was an excellent series of events for a number of reasons, not least the fact that this is the first time we’ve ever had 4 Namecoin developers attending a single conference (our previous record was 3 developers, at 37C3). Expanding our team size has been a priority for a while, and it’s great to see that this is starting to pay off. Of course, there were major substantive benefits as well. As usual for conferences that Namecoiners attend, we engaged in a large number of conversations with other attendees.  Also as usual, we won’t be publicly disclosing the content of those conversations, because I want people to be able to talk to us at conferences without worrying that off-the-cuff comments will be broadcast to the public.</p>

<p><a href="/2024/07/24/tor-2024-gpn-22-monerokon-4-summary.html">Read more…</a></p>

<h3 id="reducing-size-with-concise-binary-object-representation-cbor-and-name-gifting"><a href="/2024/05/17/cbor-and-gifting-names.html">Reducing Size With Concise Binary Object Representation (CBOR) and Name Gifting</a></h3>

<p><strong><a href="/2024/05/17/cbor-and-gifting-names.html">2024-05-17</a></strong> Several new Electrum-NMC enhancements have been added.</p>

<p><a href="/2024/05/17/cbor-and-gifting-names.html">Read more…</a></p>

<h3 id="namecoin-will-be-at-tor-meeting-2024-gpn-22-and-monerokon-4"><a href="/2024/05/15/tor-2024-gpn-22-monerokon-4.html">Namecoin will be at Tor Meeting 2024, GPN 22, and MoneroKon 4</a></h3>

<p><strong><a href="/2024/05/15/tor-2024-gpn-22-monerokon-4.html">2024-05-15</a></strong> We’re happy to announce that Namecoin developers will be at multiple conferences over the next month:</p>

<p><a href="/2024/05/15/tor-2024-gpn-22-monerokon-4.html">Read more…</a></p>

<h3 id="electrum-nmc-apparmor-static-analysis-and-input-validation--ncdns-unix-sockets"><a href="/2024/05/11/apparmor-static-analysis-input-validation-ncdns-unix-sockets.html">Electrum-NMC AppArmor, Static Analysis, and Input Validation + ncdns Unix Sockets</a></h3>

<p><strong><a href="/2024/05/11/apparmor-static-analysis-input-validation-ncdns-unix-sockets.html">2024-05-11</a></strong> Several new Electrum-NMC &amp; ncdns enhancements have been added.</p>

<p><a href="/2024/05/11/apparmor-static-analysis-input-validation-ncdns-unix-sockets.html">Read more…</a></p>

<p><a href="/news/">Earlier news</a></p>

<p>For the latest news go to the <a href="https://forum.namecoin.org/">Namecoin forum</a> or check out <a href="https://www.reddit.com/r/namecoin">r/namecoin</a>.</p>

<p>Official anouncements will also be made on <a href="https://bitcointalk.org/index.php?topic=236340.0">this BitcoinTalk thread</a>.</p>

<h2 id="donate">Donate</h2>
<p>Help keep us <strong>strong</strong>.  <a href="/donate/">You can donate to the Namecoin project here.</a></p>

<h2 id="participate">Participate</h2>
<p>With <strong>Namecoin</strong> you can make a difference.  We need your <strong>help to free information</strong>, especially in documentation, marketing, and <a href="https://github.com/namecoin/">coding</a>.  You are welcome at the <a href="https://forum.namecoin.org/">forum</a>.  There may be <a href="https://forum.namecoin.org/viewforum.php?f=18">bounties</a>, too.</p>

  </article>

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        <div class="container-fluid" id="page-alternate">
            <ul class="list-inline">
                <li>This page is available via:</li>
                <li><a href="https://www.namecoin.org/">DNS (namecoin.org)</a></li>
                <li><a href="https://www.rw6nbpjrmcpdxszn3air4bt7t75rpz4cp3c2kbdu72ptua57tzvin4id.onion/">Onion</a></li>
                <li><a href="http://[scrubbed]/1EZSUprqJQph9JwKg3gAJtiNs899vatZTo/">ZeroNet</a></li>
                <li><a href="https://namecoin.bit/">Namecoin (namecoin.bit)</a></li>
            </ul>
        </div>

        <div class="container-fluid" id="funders">
            <p>Thanks to our funders:</p>
            
            <ul class="list-inline">
                
                    <li class="funder">Cyphrs</li>
                
                    <li class="funder"><a href='https://www.rijksoverheid.nl/ministeries/ministerie-van-economische-zaken-en-klimaat'>Netherlands Ministry of Economic Affairs and Climate Policy (via Internet Hardening Fund)</a></li>
                
                    <li class="funder"><a href='https://nlnet.nl/core/'>NLnet Foundation (Next Generation Internet Zero: Core)</a></li>
                
                    <li class="funder"><a href='https://nlnet.nl/assure/'>NLnet Foundation (Next Generation Internet: Assure)</a></li>
                
                    <li class="funder"><a href='https://autonomousworlds.com/'>Autonomous Worlds Ltd (Xaya)</a></li>
                
                    <li class="funder"><a href='https://www.f2pool.com/'>F2Pool</a></li>
                
                    <li class="funder"><a href='https://www.outreachy.org/'>Software Freedom Conservancy (Outreachy)</a></li>
                
                    <li class="funder"><a href='https://nlnet.nl/discovery/'>NLnet Foundation (Next Generation Internet Zero: Search and Discovery)</a></li>
                
                    <li class="funder">European Commission Directorate-General for Communications Networks, Content and Technology (via Next Generation Internet Zero: Core)</li>
                
                    <li class="funder"><a href='https://nlnet.nl/internethardening/'>NLnet Foundation (Internet Hardening Fund)</a></li>
                
                    <li class="funder">European Commission Directorate-General for Communications Networks, Content and Technology (via Next Generation Internet Zero: Search and Discovery)</li>
                
                    <li class="funder"><a href='https://www.cyphermarket.com/'>Cypher Market</a></li>
                
                    <li class="funder">Handshake</li>
                
                    <li class="funder"><a href='https://powerupprivacy.com/'>Power Up Privacy</a></li>
                
                    <li class="funder"><a href='https://www.torproject.org/'>Tor Project (via Outreachy)</a></li>
                
                    <li class="funder">European Commission Directorate-General for Communications Networks, Content and Technology (via Next Generation Internet: Assure)</li>
                
                    <li class="funder"><a href='https://cyberia.club/'>Cyberia Computer Club (Capsul)</a></li>
                
            </ul>
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        <div class="container-fluid" id="disclaimer">
            <p>Namecoin is produced independently from the Tor® anonymity software and carries no guarantee from The Tor Project about quality, suitability or anything else.</p>
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</html>

Resolver

Resolver ASN
AS27725
Resolver IP
200.55.128.210
Resolver Network Name
Empresa de Telecomunicaciones de Cuba, S.A.
Report ID
20250405T141810Z_webconnectivity_CU_27725_n1_oullffDiDDatf0t6
Platform
linux
Software Name
ooniprobe-cli-unattended (3.20.0)
Measurement Engine
ooniprobe-engine (3.20.0)

Raw Measurement Data

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