priceline.com

Readiness by lane

Green: priceline.com. Thin bar: Travel Bookings & Trip Planning peer median.

Priority fixes for priceline.com

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

1. Priority 1 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for 60 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.

   On Cloudflare: Use Cache Rules to set edge and browser TTLs for static file paths.

   49% of Travel Bookings & Trip Planning peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: Browser Caching Guide for Website Owners

2. Priority 2 · Accelerate

   Modern image formats in use

   Observed: The homepage had 38 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.

   On Cloudflare: Cloudflare Polish can convert images to WebP.

   41% of Travel Bookings & Trip Planning peers do this.

   Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

3. Priority 3 · Harden

   Framing restricted

   Observed: The homepage did not send frame-ancestors or X-Frame-Options, so other sites may frame it.

   What to do: Send Content-Security-Policy: frame-ancestors 'self' (or a list of trusted origins). X-Frame-Options: SAMEORIGIN covers older browsers.

   On Cloudflare: Add the header with a response header transform rule.

   56% of Travel Bookings & Trip Planning peers do this.

   Guide: A Practical Website Health Check for Owners

4. Priority 4 · Accelerate

   HTTP/3 advertised

   Observed: The homepage did not advertise HTTP/3 through an Alt-Svc header.

   What to do: Turn on HTTP/3 at your CDN. Browsers fall back to HTTP/2 automatically, so the risk is low.

   On Cloudflare: Enable HTTP/3 (with QUIC) under Speed > Optimization > Protocol Optimization.

   33% of Travel Bookings & Trip Planning peers do this.

   Guide: CDN Guide for Website Owners

What priceline.com already does well

Practices fewer than half of Travel Bookings & Trip Planning peers use.

• No render-blocking scripts in <head>Head scripts load without blocking.44% of peers
• HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.46% of peers

What we saw

Homepage checked

https://www.priceline.com/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

DigiCert, 396-day validity, expiring 2027-03-23

CDN or edge

Cloudflare, Google edge

Platform or framework

Next.js

DNS operators

NS1

HSTS

max-age 365 days, includeSubDomains

DMARC policy

p=quarantine

Homepage HTML

614 KB, gzip

Images on homepage

38 (svg 38)

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 Travel Bookings & Trip Planning sites

• homeexchange.com68
• irctctourism.com68
• nap-camp.com68
• r.pl68
• shohoz.com68

Travel Bookings & Trip Planning readiness benchmark