Website readiness profile · Snapshot 23 October 2026
virtualbox.org
virtualbox.org's public homepage, certificate and DNS checked against 31 practices and compared with 231 Programming & Software sites.
- Readiness index
- 57/100
- Ahead of
- 24%
- Practices observed
- 16/31
- Popularity band
- Top 50K
Programming & Software median 68
of measured Programming & Software sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: virtualbox.org. Thin bar: Programming & Software peer median.
Enable
33/100
Peers 81
Harden
82/100
Peers 59
Accelerate
38/100
Peers 65
Recover
100/100
Peers 7
Priority fixes for virtualbox.org
Ordered by impact and by how common each practice is among peers.
Priority 1 · Enable
Mobile viewport configured
Observed: The homepage had no viewport meta tag, so phones may render it zoomed out.
Why it matters: Without it, phones render the page at desktop width and shrink it, which makes text tiny and hard to use.
What to do: Add <meta name="viewport" content="width=device-width, initial-scale=1"> and check the layout on small screens.
97% of Programming & Software peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Priority 2 · Accelerate
Static files cached for 30 days or more
Observed: A same-site stylesheet or script was cacheable for 856 seconds, short of the 30-day benchmark.
What to do: Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.
50% of Programming & Software peers do this.
Priority 3 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
69% of Programming & Software peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 4 · Enable
Meta description written
Observed: The homepage had no meta description.
What to do: Write a short, specific description of the page for people, not a list of keywords.
92% of Programming & Software peers do this.
Guide: Meta Titles and Descriptions That Match Search Intent
What virtualbox.org already does well
Practices fewer than half of Programming & Software peers use.
- Nameservers spread across providersNameservers spread across more than one operator.7% of peers
- security.txt publishedsecurity.txt with a contact found.15% of peers
- Content Security Policy presentContent-Security-Policy present.32% of peers
What we saw
- Homepage checked
- https://www.virtualbox.org/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- DigiCert, 198-day validity, expiring 2027-02-17
- CDN or edge
- Akamai
- DNS operators
- Akamai Edge DNS, plus 1 self-run or other nameserver domain
- HSTS
- max-age 365 days
- DMARC policy
- p=reject
- Homepage HTML
- 20 KB, gzip
- Images on homepage
- 7 (png 7)
Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.
Stack and providers
Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.
All 31 checks
Select a gap for the method and fix. How each check works
Not observed 15
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- Referrer-Policy set
- HTTP/3 advertised
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- XML sitemap discoverable
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
Observed 16
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- HTTP/2 negotiated
- HTML compressed
- robots.txt published
- Reachable over IPv6
- Page language declared
- At most one redirect to the homepage
- Nameservers spread across providers
Own virtualbox.org?
Re-run the checks after a change, or verify the site in a free workspace to save reports with history, compare against similar sites and competitors, and track a private action plan. What owners get.
Live status for this site: Status Is Down: virtualbox.org. This profile covers configuration only.