westfield.com

Readiness by lane

Green: westfield.com. Thin bar: Uncategorized peer median.

Priority fixes for westfield.com

Ordered by impact and by how common each practice is among peers.

1. Priority 1 · Harden

   HSTS kept for at least a year

   Observed: The homepage response did not include a Strict-Transport-Security header.

   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 Next.js: Add the header in the headers() option of next.config.js for all routes.

   34% of Uncategorized peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: HTTPS and TLS Guide for Website Owners

2. Priority 2 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for 1800 seconds, short of the 30-day benchmark.

   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.

   44% of Uncategorized peers do this.

   Guide: Browser Caching Guide for Website Owners

3. Priority 3 · Accelerate

   No render-blocking scripts in <head>

   Observed: The homepage <head> loaded 1 external script 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.

   On Next.js: Use the next/script component with an appropriate loading strategy.

   37% of Uncategorized peers do this.

   Guide: Control Third-Party Scripts Before They Control Your Page

4. Priority 4 · 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.

   62% of Uncategorized peers do this.

   Guide: SEO Checklist for a New Website

What westfield.com already does well

Practices fewer than half of Uncategorized peers use.

• Content Security Policy presentContent-Security-Policy present.24% of peers
• Modern image formats in useWebP or AVIF images detected.33% of peers
• HTTP/3 advertisedHTTP/3 advertised.33% of peers

What we saw

Homepage checked

https://www.westfield.com/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

Google Trust Services, 90-day validity, expiring 2026-11-27

CDN or edge

Google edge

Platform or framework

Next.js

DNS operators

Amazon Route 53

DMARC policy

p=reject

Homepage HTML

540 KB, gzip

Images on homepage

55 (jpg 235, svg 45, png 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

Compare with other Uncategorized sites

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• sanrio.co.jp71

Uncategorized readiness benchmark