Website readiness profile · Snapshot 23 October 2026
tarifaluzhora.es
tarifaluzhora.es's public homepage, certificate and DNS checked against 31 practices and compared with 132 Energy, Electricity & Gas sites.
- Readiness index
- 82/100
- Ahead of
- 94%
- Practices observed
- 23/29
- Popularity band
- Top 50K
Energy, Electricity & Gas median 64
of measured Energy, Electricity & Gas sites
2 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: tarifaluzhora.es. Thin bar: Energy, Electricity & Gas peer median.
Enable
92/100
Peers 74
Harden
69/100
Peers 65
Accelerate
100/100
Peers 51
Recover
0/100
Peers 17
Priority fixes for tarifaluzhora.es
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
HSTS kept for at least a year
Observed: Strict-Transport-Security was sent with a max-age of 30 days, below the one-year benchmark.
Why it matters: HSTS tells browsers to use HTTPS for your host on every later visit, which removes the window where a first HTTP request can be intercepted.
What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.
On Cloudflare: Enable HSTS under SSL/TLS > Edge Certificates > HTTP Strict Transport Security and raise max-age gradually.
63% of Energy, Electricity & Gas peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · Harden
DMARC policy enforces quarantine or reject
Observed: The DMARC policy for tarifaluzhora.es was p=none, which asks receivers to take no action on failing mail.
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.
64% of Energy, Electricity & Gas peers do this.
Priority 3 · Enable
Structured data present
Observed: The homepage had no JSON-LD structured data.
What to do: Add JSON-LD for your organization and main content types, then test it with Google's Rich Results Test.
36% of Energy, Electricity & Gas 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.
7.9% of Energy, Electricity & Gas peers do this.
What tarifaluzhora.es already does well
Practices fewer than half of Energy, Electricity & Gas peers use.
- CAA records limit who can issue certificatesCAA limits issuance to comodoca.com, digicert.com, letsencrypt.org and others.11% of peers
- HTTP/3 advertisedHTTP/3 advertised.20% of peers
- Reachable over IPv6IPv6 address published.30% of peers
What we saw
- Homepage checked
- https://tarifaluzhora.es/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2027-01-18
- CDN or edge
- Cloudflare
- DNS operators
- Cloudflare
- HSTS
- max-age 30 days
- DMARC policy
- p=none
- Homepage HTML
- 292 KB, br
- Images on homepage
- 0
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 6
Observed 23
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- 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
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Not measured 2
- Modern image formats in use
- Offscreen images lazy-loaded
Own tarifaluzhora.es?
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: tarifaluzhora.es. This profile covers configuration only.