prezi.com Presentation Software | Online Presentation Tools | Prezi

Mobile Usability

100/100

Good

Mobile Speed

59/100

Bad

Last tested: 2017-08-27

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prezi.com Mobile Speed: 59/100
prezi.com Mobile Speed Test Quick Overview

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 2 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
https://cdn.optimizely.com/js/6739031.js
https://prezi.com/cover/jsi18n/
Optimize CSS Delivery of the following:
https://prezi-a.akamaihd.net/cover-versioned/125-5…E/css/723b040405f2.css
https://prezi-a.akamaihd.net/cover-versioned/125-5…E/css/793eb1f121e1.css
Optimize images

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 163.8KiB (22% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…/img/hero_prezi_en.jpg could save 36.8KiB (41% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…g/prezis/sales1_en.jpg could save 33.4KiB (22% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/education2_en.jpg could save 13KiB (27% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…rezis/business1_en.jpg could save 12.2KiB (20% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/education1_en.jpg could save 9.8KiB (15% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/marketing3_en.jpg could save 7.7KiB (21% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…g/prezis/sales3_en.jpg could save 6.4KiB (23% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…g/prezis/sales2_en.jpg could save 5.4KiB (16% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…rezis/business5_en.jpg could save 4.7KiB (19% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/marketing5_en.jpg could save 4.3KiB (20% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…rezis/business4_en.jpg could save 4.3KiB (16% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/marketing4_en.jpg could save 4.2KiB (19% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…rezis/business6_en.jpg could save 4.1KiB (14% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/education5_en.jpg could save 3.7KiB (21% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…g/prezis/sales6_en.jpg could save 3.3KiB (18% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…rezis/business2_en.jpg could save 3.2KiB (16% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/education3_en.jpg could save 2.7KiB (14% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/marketing6_en.jpg could save 2.6KiB (11% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ezis/education4_en.jpg could save 1.9KiB (12% reduction).
Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://prezi.com/cover/jsi18n/ (expiration not specified)
https://snap.licdn.com/li.lms-analytics/insight.min.js (expiration not specified)
https://static.hotjar.com/c/hotjar-67374.js?sv=5 (60 seconds)
https://cdn.optimizely.com/js/6739031.js (2.1 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-MQ6FG2 (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/291059134405770?v=2.7.6 (20 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)
https://cdn3.optimizely.com/js/geo2.js (4.9 hours)
Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 22.4KiB (57% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…g/customers/unicef.svg could save 4.3KiB (59% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…stomers/salesforce.svg could save 3.8KiB (57% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…mg/customers/chupa.svg could save 3.3KiB (57% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…o/prezi-logo-white.svg could save 2.1KiB (54% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…customers/autodesk.svg could save 1.9KiB (57% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ustomers/discovery.svg could save 1.9KiB (57% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…/customers/fujitsu.svg could save 1.3KiB (59% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…ustomers/bloomberg.svg could save 1.3KiB (59% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…cover/next/img/ted.svg could save 1KiB (60% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…mg/customers/zeiss.svg could save 833B (54% reduction).
Compressing https://prezi-a.akamaihd.net/cover-versioned/125-5…oters/twitter-icon.svg could save 563B (43% reduction).

prezi.com Mobile Resources


Total Resources95
Number of Hosts30
Static Resources67
JavaScript Resources19
CSS Resources3

prezi.com Mobile Resource Breakdown