Website readiness profile · Snapshot 23 October 2026
nab.com.au
nab.com.au's public homepage, certificate and DNS checked against 31 practices and compared with 549 Banking & Finance sites.
- Readiness index
- 69/100
- Ahead of
- 57%
- Practices observed
- 19/31
- 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: nab.com.au. Thin bar: Banking & Finance peer median.
Enable
95/100
Peers 78
Harden
69/100
Peers 64
Accelerate
48/100
Peers 55
Recover
0/100
Peers 21
Priority fixes for nab.com.au
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Static files cached for 30 days or more
Observed: A same-site stylesheet or script was cacheable for 600 seconds, short of the 30-day benchmark.
Why it matters: Returning visitors and later page views reuse cached files instead of downloading them again.
What to do: Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.
43% of Banking & Finance peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · Accelerate
Modern image formats in use
Observed: The homepage had 26 images and none used WebP or AVIF.
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.
37% of Banking & Finance peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
Priority 3 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 7 external scripts without async or defer.
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.
36% of Banking & Finance peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 4 · 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.
51% of Banking & Finance peers do this.
Guide: Payment Security and PCI DSS: What Website Owners Need to Know
What nab.com.au already does well
Practices fewer than half of Banking & Finance peers use.
- Structured data presentJSON-LD structured data found.49% of peers
What we saw
- Homepage checked
- https://www.nab.com.au/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- DigiCert, 198-day validity, expiring 2027-03-11
- CDN or edge
- Akamai
- Platform or framework
- Adobe Experience Manager
- DNS operators
- 1 self-run or other nameserver domain
- HSTS
- max-age 365 days, includeSubDomains, preload
- DMARC policy
- p=reject
- Homepage HTML
- 540 KB, gzip
- Images on homepage
- 26 (jpg 128, png 22, svg 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 12
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- security.txt published
- Content Security Policy present
- Referrer-Policy set
- HTTP/3 advertised
- Static files cached for 30 days or more
- Modern image formats in use
- No render-blocking scripts in <head>
- Reachable over IPv6
- Nameservers spread across providers
Observed 19
- 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
- HTTP/2 negotiated
- HTML compressed
- Offscreen images lazy-loaded
- 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 nab.com.au?
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: nab.com.au. This profile covers configuration only.