Website readiness profile · Snapshot 23 October 2026
bancosantander.es
bancosantander.es's public homepage, certificate and DNS checked against 31 practices and compared with 549 Banking & Finance sites.
- Readiness index
- 82/100
- Ahead of
- 90%
- Practices observed
- 23/31
- Popularity band
- Top 50K
Banking & Finance median 66
of measured Banking & Finance sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: bancosantander.es. Thin bar: Banking & Finance peer median.
Enable
92/100
Peers 78
Harden
75/100
Peers 64
Accelerate
88/100
Peers 55
Recover
0/100
Peers 21
Priority fixes for bancosantander.es
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 1 external script without async or defer.
Why it matters: A plain <script src> in the head stops the browser from showing anything until that file has downloaded and run.
What to do: Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.
On Next.js: Use the next/script component with an appropriate loading strategy.
36% of Banking & Finance peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 2 · Enable
Social preview image set
Observed: The homepage had no og:image, so shared links may show without a preview image.
What to do: Add Open Graph tags, including og:image with a 1200 x 630 image.
59% of Banking & Finance peers do this.
Priority 3 · Harden
CAA records limit who can issue certificates
Observed: No CAA record was found for bancosantander.es, 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.
20% of Banking & Finance peers do this.
Priority 4 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from Amazon had a 197-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.
31% of Banking & Finance peers do this.
What bancosantander.es already does well
Practices fewer than half of Banking & Finance peers use.
- HTTP/3 advertisedHTTP/3 advertised.22% of peers
- Reachable over IPv6IPv6 address published.26% of peers
- Modern image formats in useWebP or AVIF images detected.37% of peers
What we saw
- Homepage checked
- https://www.bancosantander.es/
- Homepage response
- HTTP 200, after 1 redirect
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Amazon, 197-day validity, expiring 2027-04-29
- CDN or edge
- Amazon CloudFront
- Platform or framework
- Next.js
- DNS operators
- Akamai Edge DNS
- HSTS
- max-age 365 days, includeSubDomains, preload
- DMARC policy
- p=reject
- Homepage HTML
- 689 KB, br
- Images on homepage
- 9 (webp 25, svg 4)
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 8
Observed 23
- 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
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Page language declared
- At most one redirect to the homepage
Own bancosantander.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: bancosantander.es. This profile covers configuration only.