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deepl.com

https://deepl.com

C75
Performance 27Accessibility 85SEO 92Best Practices 100

15 technologies detected · Last audited Apr 16, 2026

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Technology stack

Analytics

Statsig

Cdn

Cloudflare

Frontend

Google Search Console Google Workspace HSTS HTTP/3 Lucide Microsoft Open Graph Priority Hints React Tailwind CSS Webpack

Hosting

Next.js Next.js App Router

Frequently asked questions about deepl.com

What technology does deepl.com use?

deepl.com is built with Google Search Console, Google Workspace, HSTS, HTTP/3, and Lucide.

Is deepl.com fast?

No — deepl.com scores 27/100 on Lighthouse mobile performance, indicating significant optimization opportunities.

Is deepl.com accessible?

Mostly — deepl.com scores 85/100 on Lighthouse accessibility, with a handful of automated issues to address.

What CMS does deepl.com use?

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

Where is deepl.com hosted?

deepl.com is hosted on Next.js.

Does deepl.com use HTTPS?

Yes — deepl.com serves traffic over HTTPS.

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2 audits

Apr 16, 2026 17:44 UTC Latest

/

Worker: worker-singapore-sg-01

View full report →

Scores

Performance 27Accessibility 85Best Practices 100SEO 92PWA 0

Timing

LCP: 18.48 sFirst Contentful Paint: 6.08 sTTFB: 480 msTotal Time: 480 msCumulative Layout Shift: 0.000
Apr 7, 2026 20:42 UTC

/

Worker: worker-saopaulo-br-01

View full report →

Scores

Performance 29Accessibility 85Best Practices 100SEO 92PWA 0

Timing

LCP: 12.10 sFirst Contentful Paint: 4.67 sTTFB: 248 msTotal Time: 249 msCumulative Layout Shift: 0.000

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