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klaviyo.com

https://klaviyo.com

C71
Performance 23Accessibility 90SEO 92Best Practices 77

32 technologies detected · Last audited Apr 16, 2026

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Technology stack

Analytics

DoubleClick Floodlight Google Analytics Google Tag Manager HubSpot HubSpot Analytics Klaviyo Microsoft Advertising Optimizely Statsig

Cdn

AWS CloudFront Amazon CloudFront Amazon S3 Cloudflare cdnjs

Cms

Sanity Sanity.io

Ecommerce

WooCommerce

Frontend

Amazon Route 53 Apple Astro Google Search Console Google Workspace Microsoft Open Graph Paraglide JS Priority Hints Sentry Transcend core-js reCAPTCHA

Hosting

AWS Amazon Web Services

Frequently asked questions about klaviyo.com

What technology does klaviyo.com use?

klaviyo.com is built with Sanity, Sanity.io, WooCommerce, Amazon Route 53, and Apple.

Is klaviyo.com fast?

No — klaviyo.com scores 23/100 on Lighthouse mobile performance, indicating significant optimization opportunities.

Is klaviyo.com accessible?

Yes — klaviyo.com scores 90/100 on Lighthouse accessibility, meeting most WCAG-aligned automated checks.

What CMS does klaviyo.com use?

klaviyo.com runs on Sanity.

Where is klaviyo.com hosted?

klaviyo.com is hosted on AWS.

Does klaviyo.com use HTTPS?

Yes — klaviyo.com serves traffic over HTTPS.

1 audits

Apr 16, 2026 17:51 UTC Latest

/

Worker: worker-newyork-us-01

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Scores

Performance 23Accessibility 90Best Practices 77SEO 92PWA 0

Timing

LCP: 29.01 sFirst Contentful Paint: 13.74 sTTFB: 18 msTotal Time: 19 msCumulative Layout Shift: 0.095

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