Website readiness profile · Snapshot 23 October 2026
dropbox.com
dropbox.com's public homepage, certificate and DNS checked against 31 practices and compared with 118 Cloud Storage & File Transfer sites.
- Readiness index
- 87/100
- Ahead of
- 97%
- Practices observed
- 24/29
- Popularity band
- Top 1K
Cloud Storage & File Transfer median 57
of measured Cloud Storage & File Transfer sites
2 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: dropbox.com. Thin bar: Cloud Storage & File Transfer peer median.
Enable
85/100
Peers 68
Harden
85/100
Peers 55
Accelerate
100/100
Peers 56
Recover
0/100
Peers 5
Priority fixes for dropbox.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
Why it matters: A sitemap helps search engines find new and updated pages, especially on large or frequently updated sites.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
44% of Cloud Storage & File Transfer peers do this. Limit: Only the standard location was requested, once, at the time of the check.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 2 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from DigiCert Inc had a 198-day validity period, longer than the 100-day maximum that applies from March 2027.
What to do: Move to automated issuance and renewal now, while you still have time to test it.
80% of Cloud Storage & File Transfer peers do this.
Priority 3 · Harden
security.txt published
Observed: No valid /.well-known/security.txt with a Contact field was returned.
What to do: Publish /.well-known/security.txt with at least Contact and Expires fields, as RFC 9116 requires, and review it before it expires.
5.3% of Cloud Storage & File Transfer peers do this.
Priority 4 · Harden
DNSSEC signed
Observed: No DS record was found for dropbox.com at its parent zone, so its DNS answers are not DNSSEC-signed.
What to do: Enable DNSSEC at your DNS provider, then add the DS record at your registrar. Plan provider moves carefully: a stale DS record can make the domain fail to resolve.
On Amazon Route 53: Enable DNSSEC signing for the hosted zone and establish the chain of trust at the registrar.
10% of Cloud Storage & File Transfer peers do this.
Guide: Website Uptime Readiness: Prepare Before Traffic Arrives
What dropbox.com already does well
Practices fewer than half of Cloud Storage & File Transfer peers use.
- CAA records limit who can issue certificatesCAA limits issuance to amazonaws.com, digicert.com, letsencrypt.org.12% of peers
- Structured data presentJSON-LD structured data found.17% of peers
- Modern image formats in useWebP or AVIF images detected.23% of peers
What we saw
- Homepage checked
- https://www.dropbox.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- DigiCert, 198-day validity, expiring 2027-04-17
- DNS operators
- Amazon Route 53
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=reject
- Homepage HTML
- 620 KB, gzip
- Images on homepage
- 83 (png 159, jpg 94, svg 62)
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 5
Observed 24
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- CAA records limit who can issue certificates
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Not measured 2
- Static files cached for 30 days or more
- robots.txt published
Own dropbox.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: dropbox.com. This profile covers configuration only.