Website readiness profile · Snapshot 23 October 2026
buser.com.br
buser.com.br's public homepage, certificate and DNS checked against 31 practices and compared with 203 Trains & Public Transport sites.
- Readiness index
- 91/100
- Ahead of
- >99%
- Practices observed
- 26/30
- Popularity band
- Top 50K
Trains & Public Transport median 60
of measured Trains & Public Transport sites
1 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: buser.com.br. Thin bar: Trains & Public Transport peer median.
Enable
100/100
Peers 73
Harden
83/100
Peers 57
Accelerate
100/100
Peers 53
Recover
0/100
Peers 15
Priority fixes for buser.com.br
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
security.txt published
Observed: No valid /.well-known/security.txt with a Contact field was returned.
Why it matters: Security researchers look for this file to report problems privately. Without it, reports may go to a general inbox or never arrive.
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.
On Cloudflare: Cloudflare Security Center can serve a security.txt file for the zone.
9.5% of Trains & Public Transport peers do this. Limit: Only the standard location was requested, once, at the time of the check.
Priority 2 · Harden
CAA records limit who can issue certificates
Observed: No CAA record was found for buser.com.br, so any public certificate authority may issue for it.
What to do: Publish CAA records naming every CA you actually use, including the CAs your CDN uses for managed certificates. Add an iodef contact if you want reports.
On Cloudflare: Cloudflare documents which CAs its managed certificates need; include them in your CAA records.
8.9% of Trains & Public Transport peers do this.
Priority 3 · Harden
DNSSEC signed
Observed: No DS record was found for buser.com.br 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 Cloudflare: Enable DNSSEC in DNS > Settings and add the DS record at the registrar.
13% of Trains & Public Transport peers do this.
Guide: Website Uptime Readiness: Prepare Before Traffic Arrives
Priority 4 · Recover
Nameservers spread across providers
Observed: All nameservers for buser.com.br belong to Cloudflare.
What to do: Treat this as an advanced step. Add a secondary DNS provider through zone transfers or a multi-provider setup, then test changes carefully, since both providers must stay in sync.
On Cloudflare: Cloudflare supports zone transfers for primary or secondary DNS setups on eligible plans.
15% of Trains & Public Transport peers do this.
Guide: Website Uptime Readiness: Prepare Before Traffic Arrives
What buser.com.br already does well
Practices fewer than half of Trains & Public Transport peers use.
- Modern image formats in useWebP or AVIF images detected.28% of peers
- HTTP/3 advertisedHTTP/3 advertised.28% of peers
- Referrer-Policy setReferrer-Policy present.29% of peers
What we saw
- Homepage checked
- https://www.buser.com.br/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2026-12-14
- CDN or edge
- Cloudflare
- Platform or framework
- Nuxt
- DNS operators
- Cloudflare
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=quarantine
- Homepage HTML
- 180 KB, gzip
- Images on homepage
- 13 (png 19, webp 2, svg 2, jpg 1)
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 4
Observed 26
- 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
- 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>
- robots.txt published
- XML sitemap discoverable
- 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 1
- Static files cached for 30 days or more
Own buser.com.br?
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: buser.com.br. This profile covers configuration only.