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Mobile Speed

61/100

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Last tested: 2017-09-12

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

Your page has 9 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.
https://prezentacii.org/engine/classes/min/index.p…set=utf-8&g=general&16
https://vk.com/js/api/openapi.js?117
https://prezentacii.org/engine/classes/js/jquery.js
https://prezentacii.org/engine/classes/js/jqueryui.js
https://prezentacii.org/templates/adaptive/js/jquery.scrollTo.min.js
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https://vk.com/js/api/openapi.js?115
Optimize CSS Delivery of the following:
https://prezentacii.org/templates/adaptive/css/style.min.css
https://prezentacii.org/templates/adaptive/css/engine.min.css
https://prezentacii.org/templates/adaptive/css/jq-ui/jquery-ui.min.css
Optimize images

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Optimize the following images to reduce their size by 213KiB (28% reduction).
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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://mc.yandex.ru/metrika/watch.js (60 minutes)
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
Minify JavaScript

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Minify JavaScript for the following resources to reduce their size by 14.5KiB (16% reduction).
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Minify HTML

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prezentacii.org Mobile Resources


Total Resources149
Number of Hosts19
Static Resources93
JavaScript Resources30
CSS Resources9

prezentacii.org Mobile Resource Breakdown