Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
BRedirect Chain1 redirect(s), 1011 ms totalREVIEW
https://virtualbox.org
693 ms · HTTP/1.1
https://www.virtualbox.org/
318 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://virtualbox.org | 301 | 693 ms | HTTP/1.1 | |
| 2 | https://www.virtualbox.org/ | 200 | 318 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
CCrawlabilityActionrobots.txt present, sitemap with 0 URLsREVIEW
Search engines may not be able to parse the sitemap. Fix XML validation errors.
An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.
Learn more ▾ ▴
Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.
Source: sitemaps.org / Google Search Central
An empty sitemap provides no value. Add <url> entries for your pages.
An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.
Learn more ▾ ▴
Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.
Source: Google Search Central / sitemaps.org
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
<!DOCTYPE html>
<html lang="en"> <head>
<!-- # block head (placeholder in theme.html) -->
<!-- # block head (content inherited from layout.html) -->
<title>
Oracle VirtualBox
</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<!--[if IE]><script>
if (/^#__msie303:/.test(window.location.hash))
window.location.replace(window.location.hash.replace(/^#__msie303:/, '#'));
</script><![endif]-->
<link rel="search" href="/search" />
<link rel="help" href="/wiki/TracGuide" />
<link rel="alternate" href="/wiki/WikiStart?format=txt" title="Plain Text" type="text/x-trac-wiki" />
<link rel="start" href="/wiki" />
<link rel="stylesheet" href="/chrome/common/css/trac.css" type="text/css" />
<link rel="stylesheet" href="/chrome/common/css/wiki.css" type="text/css" />
<link rel="icon" href="/favicon.ico" type="image/x-icon" />
<noscript>
<style>
.trac-noscript { display: none !important }
</style> </noscript>
<link type="application/opensearchdescription+xml" rel="search"
href="/search/opensearch"
title="Search Oracle VirtualBox"/>
<script src="/chrome/common/js/jquery.js"></script>
<script src="/chrome/common/js/jquery-migrate.js"></script>
<script src="/chrome/common/js/babel.js"></script>
<script src="/chrome/common/js/trac.js"></script>
<script src="/chrome/common/js/search.js"></script>
<script src="/chrome/common/js/folding.js"></script>
<script src="/chrome/common/js/wiki.js"></script>
<script>
jQuery(function($) {
$(".trac-autofocus").focus();
$(".trac-target-new").attr("target", "_blank");
if ($.ui) { /* is jquery-ui added? */
$(".trac-datepicker:not([readonly])")
.prop("autocomplete", "off").datepicker();
// Input current date when today is pressed.
var _goToToday = $.datepicker._gotoToday;
$.datepicker._gotoToday = function(id) {
_goToToday.call(this, id);
this._selectDate(id)
};
$(".trac-datetimepicker:not([readonly])")
.prop("autocomplete", "off").datetimepicker();
$("#main").addClass("trac-nodatetimehint");
}
$(".trac-disable").disableSubmit(".trac-disable-determinant");
setTimeout(function() { $(".trac-scroll").scrollToTop() }, 1);
$(".trac-disable-on-submit").disableOnSubmit();
});
</script>
<!-- # include 'site_head.html' (layout.html) -->
<link rel="stylesheet" type="text/css" href="/chrome/site/style.css"/>
<script>
jQuery(function($) {
var $ntg = $("#newticketguide");
if ($ntg.length)
$("#propertyform").prepend($ntg.detach());
});
</script>
<script>
jQuery(function($) {
var $content = $("#content");
var $opener = $("#opener");
if ($("#opener").length) $content.toggleClass('narrow');
});
</script> <!-- end of site_head.html -->
<!-- # endblock head (content inherited from layout.html) -->
<script>
jQuery(function($) {
wikiColumn($("#wikipage"));
});
</script>
<!-- # endblock head (placeholder in theme.html) -->
</head>
<body>
<!-- # block body (content inherited from theme.html) -->
<!-- # include 'site_header.html' (theme.html) -->
<!-- Add site-specific header -->
<div id="vboxstring">
<img src="/graphics/vboxlogodown.png" alt="VirtualBox"/>
</div>
<div id="center"> <!-- end of site_header.html -->
<div id="banner">
<form id="search" action="/search" method="get">
<div>
<label for="proj-search">Search:</label>
<input type="text" id="proj-search" name="q" size="18"
value="" />
<input type="submit" value="Search" />
</div>
</form>
</div>
<div id="mainnav" class="nav">
</div>
<div id="main"
>
<div id="pagepath" class="noprint">
<a class="pathentry first" title="View WikiStart"
href="/wiki">wiki:</a><a href="/wiki/WikiStart"
title="View WikiStart"
class="pathentry">WikiStart</a></div> <div id="ctxtnav">
<li>
<a id="logo" href="https://www.virtualbox.org/"><img alt="Oracle VirtualBox" src="/graphics/vbox-new-logo.png"></a>
</li>
<ul>
<li><a href="https://www.virtualbox.org/">Home</a></li>
<li><a href="/wiki/Downloads">Download</a></li>
<li><a href="/wiki/Documentation">Documentation</a></li>
<li><a href="/wiki/Community">Community</a></li>
<li class="first">
<a id="profile" href="/login"><img src="/graphics/user.png" alt="User profile icon"></a>
</li>
<form style="text-align: right" action="/search" method="get">
<div>
<input id="vboxsearch" type="text" name="q" size="10" accesskey="f" value="Search:" onblur="if(this.value=='') this.value='Search:';" onfocus="if(this.value=='Search:') this.value='';">
<input type="hidden" name="wiki" value="on">
<input type="hidden" name="changeset" value="on">
<input type="hidden" name="ticket" value="on">
</div>
</form>
</li>
</ul>
</div>
<!-- # block content (placeholder in theme.html) -->
<div id="content" class="wiki narrow">
<div class="wikipage searchable">
<div id="wikipage" class="trac-content borderless"><h1 class="section" id="WelcometoVirtualBox.org">Welcome to VirtualBox.org!</h1>
<div class="flexboxes_vertical">
<div class="flexboxes" id="opener">
<div class="intro">
Powerful open source virtualization
<p>For personal and enterprise use</p>
<p>VirtualBox is a general-purpose full virtualization software for x86_64 hardware (with version 7.1 additionally for macOS/Arm and with version 7.2 also for Windows/Arm), targeted at laptop, desktop, server and embedded use.</p>
</div>
<div style="width: 30%" class="flexboxes">
<div class="light box">
<li>Get Started</li>
<a href="wiki/Downloads" class="button">Download</a>
<p>Download VirtualBox binaries and platform packages</p>
</div>
</div>
</div>
<div class="flexboxes" id="dark_background">
<a href="wiki/Community" class="dark box">
<li>Community</li>
<p>Become a part of the VirtualBox community. Discuss and solve problems in the forums, access test builds, and more. </p>
<img src="/graphics/community.png" alt="Community icon">
</a>
<a href="wiki/Documentation" class="dark box">
<li>Documentation</li>
<p>Learn from a variety of resources including user manuals, end-user and technical documentation, the source code repository timeline, or the changelog.</p>
<img src="/graphics/user-manual.png" alt="Documentation icon">
</a>
<a href="https://www.oracle.com/goto/virtualboxlearning" target="”_blank”" class="dark box">
<li>Training</li>
<p>Access labs, tutorials, and videos to learn how to use VirtualBox. Quizzes are available to test your learning.</p>
<img src="/graphics/training.png" alt="Training icon">
</a>
</div>
</div>
<div class="flexboxes" id="updates">
<div class="intro">
Join the VirtualBox community
<p>Millions of users actively use VirtualBox</p>
<p>VirtualBox is a community effort backed by Oracle. Everyone is encouraged to contribute. Oracle helps ensure the product meets professional quality criteria and offers support resources for users.</p>
<div id="contributors">
<div class="contributor">
<a href="wiki/Contributor_information" class="button">How to Contribute</a>
</div>
<div class="contributor">
<a href="wiki/Contributions" class="button">Past Contributions</a>
</div>
<div class="contributor">
<a href="https://shop.oracle.com/apex/f?p=DSTORE:6::::6:P6_LPI,P6_PROD_HIER_ID:114347640102492137513432,4510278280861805728469" class="button" target="”_blank”">Oracle Support</a>
</div>
</div>
</div>
<div class="newsflash">
<h3>Recent releases</h3>
<ul>
<li>
<b><span style="background: #B00; color: #ffd; font-family: WarpSans, Arial; padding: 1px 3px">New</span>
April 21st, 2026<br>VirtualBox 7.2.8</b><br>
Oracle today released a 7.2 maintenance release which improves stability and fixes regressions. See the
<a href="https://www.virtualbox.org/wiki/Changelog-7.2#v08">Changelog</a> for details.
</li>
<li>
<b><span style="background: #B00; color: #ffd; font-family: WarpSans, Arial; padding: 1px 3px">New</span>
April 21st, 2026<br>VirtualBox 7.1.18</b><br>
Oracle today released a 7.1 maintenance release which improves stability and fixes regressions. See the
<a href="https://www.virtualbox.org/wiki/Changelog-7.1#v18">Changelog</a> for details.
</li>
<li>
<b><span style="background: #B00; color: #ffd; font-family: WarpSans, Arial; padding: 1px 3px">New</span>
January 20th, 2026<br>VirtualBox 7.2.6</b><br>
Oracle today released a 7.2 maintenance release which improves stability and fixes regressions. See the
<a href="https://www.virtualbox.org/wiki/Changelog-7.2#v06">Changelog</a> for details.
</li>
<li>
<b><span style="background: #B00; color: #ffd; font-family: WarpSans, Arial; padding: 1px 3px">New</span>
January 20th, 2026<br>VirtualBox 7.1.16</b><br>
Oracle today released a 7.1 maintenance release which improves stability and fixes regressions. See the
<a href="https://www.virtualbox.org/wiki/Changelog-7.1#v16">Changelog</a> for details.
</li>
<li>
<b><span style="background: #B00; color: #ffd; font-family: WarpSans, Arial; padding: 1px 3px">New</span>
October 21st, 2025<br>VirtualBox 7.2.4</b><br>
Oracle today released a 7.2 maintenance release which improves stability and fixes regressions. See the
<a href="https://www.virtualbox.org/wiki/Changelog-7.2#v04">Changelog</a> for details.
</li>
<li>
<b><span style="background: #B00; color: #ffd; font-family: WarpSans, Arial; padding: 1px 3px">New</span>
October 21st
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations143 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable DNSSEC on your domain for DNS spoofing protection
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records1 A records, 12 ms lookupPASS
| A | 138.1.33.162 |
| AAAA | — |
| CNAME | — |
| NS | a13-65.akam.net, ns2.p201.dns.oraclecloud.net, ns4.p201.dns.oraclecloud.net, ns1.p201.dns.oraclecloud.net, a11-66.akam.net, ns3.p201.dns.oraclecloud.net, a18-67.akam.net, a1-160.akam.net |
| MX | 10 mail.virtualbox.org |
| TXT | SPF v=spf1 include:spf-00069f02.pphosted.com -all |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.
Learn more ▾ ▴
Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.
Source: SRE practice / DNS architecture
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
A+Domain Intelligencevirtualbox.org — via MarkMonitor Inc., 19 years, 9 months old, hosted on Oracle CloudPASS
96 days
October 16, 2026
143 days
Issued by DigiCert Inc
19 years, 9 months
Registered October 16, 2006
Not enabled
Protects against DNS spoofing
Oracle Cloud
ASN AS31898
138.1.33.162
MarkMonitor Inc.
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.
Learn more ▾ ▴
DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.
Source: ICANN / RFC 4033
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.
Learn more ▾ ▴
Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.
Source: ICANN / domain-security best practice