Website readiness profile · Snapshot 23 October 2026
vesselfinder.com
vesselfinder.com's public homepage, certificate and DNS checked against 31 practices and compared with 73 GPS Navigation & Maps sites.
- Readiness index
- 74/100
- Ahead of
- 77%
- Practices observed
- 20/30
- Popularity band
- Top 5K
GPS Navigation & Maps median 68
of measured GPS Navigation & Maps sites
1 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: vesselfinder.com. Thin bar: GPS Navigation & Maps peer median.
Enable
87/100
Peers 81
Harden
71/100
Peers 57
Accelerate
71/100
Peers 63
Recover
0/100
Peers 14
Priority fixes for vesselfinder.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
DMARC policy enforces quarantine or reject
Observed: The DMARC policy for vesselfinder.com was p=none, which asks receivers to take no action on failing mail.
Why it matters: An enforcing DMARC policy helps receiving mail systems reject email that falsely claims to come from your domain, a common route for phishing your customers.
What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.
38% of GPS Navigation & Maps peers do this. Limit: Read from public DNS at the time of the check; records may have changed since.
Priority 2 · Accelerate
Modern image formats in use
Observed: The homepage had 9 images and none used WebP or AVIF.
What to do: Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.
35% of GPS Navigation & Maps peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
Priority 3 · Enable
Social preview image set
Observed: The homepage had no og:image, so shared links may show without a preview image.
What to do: Add Open Graph tags, including og:image with a 1200 x 630 image.
69% of GPS Navigation & Maps peers do this.
Priority 4 · Accelerate
HTTP/3 advertised
Observed: The homepage did not advertise HTTP/3 through an Alt-Svc header.
What to do: Turn on HTTP/3 at your CDN. Browsers fall back to HTTP/2 automatically, so the risk is low.
35% of GPS Navigation & Maps peers do this.
What vesselfinder.com already does well
Practices fewer than half of GPS Navigation & Maps peers use.
- Content Security Policy presentContent-Security-Policy present.28% of peers
- HSTS kept for at least a yearHSTS with a 730-day max-age.38% of peers
- X-Content-Type-Options: nosniffnosniff header present.43% of peers
What we saw
- Homepage checked
- https://www.vesselfinder.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Let's Encrypt, 89-day validity, expiring 2026-12-14
- DNS operators
- 1 self-run or other nameserver domain
- HSTS
- max-age 730 days, preload
- DMARC policy
- p=none
- Homepage HTML
- 26 KB, gzip
- Images on homepage
- 9 (svg 9)
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 10
Observed 20
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- HTTP/2 negotiated
- HTML compressed
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Page language declared
- At most one redirect to the homepage
Not measured 1
- Static files cached for 30 days or more
Own vesselfinder.com?
Re-run the checks after a change, keep a private action plan in a free workspace, or report a mistake.
Live status for this site: Status Is Down: vesselfinder.com. This profile covers configuration only.