Cloudflare site speed
How fast Cloudflare websites load on a phone, from Google PageSpeed tests of 3,214 Cloudflare sites, and which popular ones are slowest. Use it to benchmark your own site, or to find Cloudflare sites that need speed work.
Real users: 29% of the 2,646 Cloudflare sites with Chrome UX Report data are rated fast overall (good loading, responsiveness and layout stability).
Slowest popular Cloudflare sites
Lowest mobile PageSpeed scores among Cloudflare sites in the Tranco top million. One lab test each, so a score can move from day to day.
| Site | Industry | Mobile score | LCP | Page weight |
|---|---|---|---|---|
 Frost & Sullivan frost.com | – | 1 | 9.1s | 7.0 MB |
Bedshed bedshed.com.au | Retail | 1 | 110.7s | 31.7 MB |
 ArisGlobal arisglobal.com | – | 3 | 10.1s | 3.5 MB |
 Alrajhitakaful alrajhitakaful.com | – | 4 | 24.2s | 14.5 MB |
Avantor avantorsciences.com | – | 5 | 21.9s | 4.1 MB |
Barbora barbora.lt | – | 5 | 22.0s | 11.3 MB |
 Al Majed Oud almajed4oud.com | – | 5 | 13.7s | 23.2 MB |
 Decathlon decathlon.com.au | – | 6 | 14.0s | 9.4 MB |
 Arby's arbys.com | Food service | 7 | 14.1s | 3.6 MB |
Bradyunited bradyunited.org | – | 7 | 26.3s | 8.0 MB |
 Big Save Furniture bigsave.co.nz | – | 7 | 34.7s | 5.3 MB |
Acemart acemart.com | – | 7 | 21.1s | 4.2 MB |
 Sandro – Official Website sandro-paris.com | – | 9 | 17.1s | 3.6 MB |
 CANIFA canifa.com | – | 10 | 41.1s | 9.3 MB |
 Blue Banana Brand bluebananabrand.com | – | 10 | 6.6s | 5.9 MB |
100mega 100mega.cz | – | 10 | 9.8s | 7.4 MB |
 Avocado Green Mattress avocadogreenmattress.com | – | 12 | 14.9s | 19.0 MB |
Curling curling.ca | – | 12 | 24.2s | 13.3 MB |
Bain & Company bain.com | Management consulting | 13 | 17.1s | 3.2 MB |
Carhop carhop.com | – | 13 | 14.6s | 3.6 MB |
 Affirm affirm.com | Fintech | 14 | 20.9s | 6.6 MB |
Aritzia aritzia.com | Retail | 14 | 21.0s | 6.5 MB |
Asda asda.com | Retail | 15 | 18.4s | 4.5 MB |
 Alteryx alteryx.com | Software | 15 | 14.9s | 6.0 MB |
 Amnesty International Canada amnesty.ca | – | 15 | 22.1s | 4.9 MB |
Every slow Cloudflare site, as a list
All Cloudflare sites scoring under 50 on mobile, filtered by industry, country or popularity, with what slows each one down, company details and contacts. Credits included to start.
Third parties Cloudflare sites load most
- Google Tag Manager76%
- Google Analytics59%
- Google Fonts59%
- Google/Doubleclick Ads56%
- Other Google APIs/SDKs47%
- Google CDN30%
- Facebook29%
- Bing Ads21%
- JSDelivr CDN20%
- LinkedIn Ads19%
Fastest popular Cloudflare sites
- 37signals 37signals.com100
- Brilliance brilliance.com100
- Arizona Department of Education azed.gov100
- Dulwich Picture Gallery dulwichpicturegallery.org.uk100
- Oha oha.org100
- Boart Longyear boartlongyear.com100
- Axians axians.com100
- Bigfesta bigfesta.com.br100
- Psseasoning psseasoning.com100
- Aroma Espresso Bar aroma.co.il100
How this is measured
Each site's home page is tested with Google PageSpeed Insights (Lighthouse, simulated mid-range phone on a slow 4G connection) when it's enriched; real-user ratings come from the Chrome UX Report where Google has enough visits. Only sites in the Tranco top million are named. See also websites using Cloudflare. Updated October 2026.
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