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harpercollins.com

https://harpercollins.com

Performance 25Accessibility 74SEO 92Best Practices 73

8 technologies detected · Last audited Apr 21, 2026

View full audit

Technology stack

Cdn

Cloudflare

Ecommerce

Shopify

Frontend

AngularJS Cloudflare Turnstile Google Search Console HSTS HTTP/3 Proofpoint

Frequently asked questions about harpercollins.com

What technology does harpercollins.com use?

harpercollins.com is built with Shopify, AngularJS, Cloudflare Turnstile, Google Search Console, and HSTS.

Is harpercollins.com fast?

No — harpercollins.com scores 25/100 on Lighthouse mobile performance, indicating significant optimization opportunities.

Is harpercollins.com accessible?

Mostly — harpercollins.com scores 74/100 on Lighthouse accessibility, with a handful of automated issues to address.

What CMS does harpercollins.com use?

No CMS fingerprint was detected on harpercollins.com — it may use a static site generator or a custom application.

Where is harpercollins.com hosted?

harpercollins.com is served through Cloudflare.

Does harpercollins.com use HTTPS?

Yes — harpercollins.com serves traffic over HTTPS.

1 audits

Apr 21, 2026 23:18 UTC Latest

Worker: worker-santaclara-us-01

View full report →

Scores

Performance 25Accessibility 74Best Practices 73SEO 92PWA 0

Timing

LCP: 23.67 sFirst Contentful Paint: 11.83 sTTFB: 143 msTotal Time: 143 msCumulative Layout Shift: 0.030

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