Website readiness profile · Snapshot 23 October 2026
123milhas.com
123milhas.com's public homepage, certificate and DNS checked against 31 practices and compared with 91 Airlines sites.
- Readiness index
- 83/100
- Ahead of
- 97%
- Practices observed
- 24/31
- Popularity band
- Top 50K
Airlines median 63
of measured Airlines sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: 123milhas.com. Thin bar: Airlines peer median.
Enable
85/100
Peers 74
Harden
83/100
Peers 60
Accelerate
85/100
Peers 56
Recover
0/100
Peers 19
Priority fixes for 123milhas.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Modern image formats in use
Observed: The homepage had 86 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 Cloudflare: Cloudflare Polish can convert images to WebP.
31% of Airlines 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 · Enable
Canonical URL declared
Observed: The homepage did not declare a canonical URL.
What to do: Add a self-referencing canonical link to every indexable page, using the final https:// URL.
60% of Airlines peers do this.
Priority 3 · Harden
Content Security Policy present
Observed: The homepage response did not include a Content-Security-Policy header.
What to do: Start with Content-Security-Policy-Report-Only to see what would break, tighten the policy over a few weeks, then enforce it.
On Next.js: Next.js documents nonce-based CSP with middleware.
32% of Airlines peers do this.
Guide: Payment Security and PCI DSS: What Website Owners Need to Know
Priority 4 · Harden
CAA records limit who can issue certificates
Observed: No CAA record was found for 123milhas.com, 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.
9.9% of Airlines peers do this.
What 123milhas.com already does well
Practices fewer than half of Airlines peers use.
- security.txt publishedsecurity.txt with a contact found.9.3% of peers
- HTTP/3 advertisedHTTP/3 advertised.16% of peers
- Referrer-Policy setReferrer-Policy present.25% of peers
What we saw
- Homepage checked
- https://123milhas.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2026-12-04
- CDN or edge
- Cloudflare
- Platform or framework
- Next.js
- DNS operators
- Cloudflare
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=reject
- Homepage HTML
- 173 KB, br
- Images on homepage
- 86
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
- Certificate lifetime of 100 days or less
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- 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
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Own 123milhas.com?
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: 123milhas.com. This profile covers configuration only.