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American Express vs Cart Functionality

Based on 17 and 734 real audits

View American Express details | View Cart Functionality details
MetricAmerican ExpressCart FunctionalityWinner
Performance4341American Express
Accessibility8787Tie
Best Practices9186American Express
SEO9391American Express
Security7770American Express
TTFB337ms470msAmerican Express
Composite7875American Express
Performance
American Express
43
Cart Functionality
41
Accessibility
American Express
87
Cart Functionality
87
Security
American Express
77
Cart Functionality
70
SEO
American Express
93
Cart Functionality
91
Composite
American Express
78
Cart Functionality
75

American Express outperforms Cart Functionality in 6 of 7 categories, with a stronger composite score (78 vs 75). Cart Functionality leads in no categories.

When to choose American Express

Choose American Express when your primary concern is server response time and security. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose Cart Functionality

Cart Functionality doesn't clearly lead American Express in any category on the sampled sites — pick it based on developer experience, ecosystem, or existing team skills rather than the audit scores.

How this comparison was built

Scores are medians across 17 audited American Express sites and 734 audited Cart Functionality sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →

FAQ

Which is faster, American Express or Cart Functionality?
Based on real BeaverCheck audits, American Express sites score higher on Lighthouse performance (43 vs 41 on average).
Which has better security, American Express or Cart Functionality?
American Express sites score higher on security analysis (77 vs 70 on average).
Which has better accessibility, American Express or Cart Functionality?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor American Express (87 vs 87). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, American Express or Cart Functionality?
American Express sites score higher on Lighthouse SEO signals (93 vs 91 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), American Express or Cart Functionality?
American Express sites show lower Time to First Byte (337 ms vs 470 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose American Express or Cart Functionality for my website?
Both platforms have trade-offs. American Express scores higher on overall composite score while American Express may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
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