Website readiness profile · Snapshot 23 October 2026
clickbus.com.br
clickbus.com.br's public homepage, certificate and DNS checked against 31 practices and compared with 877 Trains & Public Transport sites.
- Readiness index
- 84/100
- Ahead of
- 97%
- Practices observed
- 24/31
- Popularity band
- Top 10K
Trains & Public Transport median 58
of measured Trains & Public Transport sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: clickbus.com.br. Thin bar: Trains & Public Transport peer median.
Enable
95/100
Peers 74
Harden
78/100
Peers 53
Accelerate
85/100
Peers 52
Recover
0/100
Peers 14
Priority fixes for clickbus.com.br
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Modern image formats in use
Observed: The homepage had 40 images and none used WebP or AVIF.
Why it matters: WebP and AVIF are typically much smaller than JPEG or PNG at similar quality, and images are often the heaviest part of a page.
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.
On Next.js: The next/image component serves optimized formats automatically.
29% of Trains & Public Transport peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
Priority 2 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from DigiCert Inc had a 396-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.
57% of Trains & Public Transport peers do this.
Priority 3 · Harden
CAA records limit who can issue certificates
Observed: No CAA record was found for clickbus.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.
6.8% of Trains & Public Transport peers do this.
Priority 4 · 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.
On Cloudflare: Cloudflare Security Center can serve a security.txt file for the zone.
6.4% of Trains & Public Transport peers do this.
What clickbus.com.br already does well
Practices fewer than half of Trains & Public Transport peers use.
- HTTP/3 advertisedHTTP/3 advertised.22% of peers
- Content Security Policy presentContent-Security-Policy present.25% of peers
- Referrer-Policy setReferrer-Policy present.26% of peers
What we saw
- Homepage checked
- https://www.clickbus.com.br/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- DigiCert, 396-day validity, expiring 2026-11-24
- Platform or framework
- Next.js
- DNS operators
- Cloudflare
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=reject
- Homepage HTML
- 456 KB, gzip
- Images on homepage
- 40 (svg 16)
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 7
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
- 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
- Static files cached for 30 days or more
- 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
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Own clickbus.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: clickbus.com.br. This profile covers configuration only.