chance.com

Readiness by lane

Green: chance.com. Thin bar: E-Commerce & Marketplaces peer median.

Priority fixes for chance.com

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

1. Priority 1 · Accelerate

   HTML compressed

   Observed: The homepage HTML (124 KB) was delivered without gzip, Brotli or zstd compression.

   Why it matters: Compression usually shrinks HTML several times over, so the first bytes of the page arrive sooner on slow connections.

   What to do: Enable Brotli or gzip for text responses (HTML, CSS, JavaScript, JSON, SVG) at the CDN or origin.

   97% of E-Commerce & Marketplaces peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: How to Set a Website Performance Budget That Teams Can Keep

2. Priority 2 · Enable

   Mobile viewport configured

   Observed: The homepage had no viewport meta tag, so phones may render it zoomed out.

   What to do: Add <meta name="viewport" content="width=device-width, initial-scale=1"> and check the layout on small screens.

   98% of E-Commerce & Marketplaces peers do this.

   Guide: Responsive Web Design Checklist for Real Devices

3. Priority 3 · Harden

   TLS 1.3 negotiated

   Observed: The TLS connection negotiated TLSv1.2.

   What to do: Enable TLS 1.3 on your CDN or server. Keep TLS 1.2 available for older clients unless you have checked your audience.

   93% of E-Commerce & Marketplaces peers do this.

   Guide: HTTPS and TLS Guide for Website Owners

4. Priority 4 · Accelerate

   Static files cached for 30 days or more

   Observed: A same-site stylesheet or script was cacheable for no max-age, 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.

   60% of E-Commerce & Marketplaces peers do this.

   Guide: Browser Caching Guide for Website Owners

What we saw

Homepage checked

https://www.chance.com/

Homepage response

HTTP 200

TLS

TLSv1.2, HTTP/2

Certificate

Amazon, 197-day validity, expiring 2027-04-23

DNS operators

Amazon Route 53

DMARC policy

p=none

Homepage HTML

124 KB, uncompressed

Images on homepage

138 (jpg 52, png 37, gif 9)

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 E-Commerce & Marketplaces sites

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E-Commerce & Marketplaces readiness benchmark