bestbuy.com Best Buy: Expert Service. Unbeatable Price.

Mobile Usability

99/100

Good

Mobile Speed

52/100

Bad

Last tested: 2017-08-27

Rescan
bestbuy.com Mobile Usability: 99/100
bestbuy.com Mobile Usability Test Quick Overview

Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target <label for="gh-search-input">Search Best Buy</label> is close to 1 other tap targets.
The tap target <button type="submit" class="header-search-button"></button> is close to 1 other tap targets.
The tap target <a href="/site/amazon-f…00#tab=reviews" class="ep-link"></a> and 5 others are close to other tap targets.
The tap target <a href="/site/amazon-f…00#tab=reviews" class="ep-link">14228reviews</a> and 2 others are close to other tap targets.
bestbuy.com Mobile Speed: 52/100
bestbuy.com Mobile Speed Test Quick Overview

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

Your page has 12 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
http://css.bbystatic.com/header-footer/core-js-shim-2.4.1.min.js
http://css.bbystatic.com/header-footer/fetch-2.0.1.min.js
http://js.bbystatic.com/sc-bby-libraries/externals…act-with-addons.min.js
http://js.bbystatic.com/sc-bby-libraries/externals…5.3.1/react-dom.min.js
http://js.bbystatic.com/sc-libraries/javascript/li…1d1f26d180899876b90.js
http://js.bbystatic.com/sc-libraries/javascript/re…184b6caebcb09c5cb49.js
http://img.bbystatic.com/BestBuy_US/store/rtb/util/js/geo-target-min.js
http://js.bbystatic.com/site-control-page/javascri…22e22a0159ed199e855.js
http://js.bbystatic.com/header-footer/main-s-73beb0c5dfdb4eac379d.js
http://js.bbystatic.com/suggest/suggest-view-clien…2a4c3d993229f33ff95.js
https://cdn.optimizely.com/js/8143030612.js
http://img.bbystatic.com/BestBuy_US/js/tracking/brightTag-min.js
Optimize CSS Delivery of the following:
http://css.bbystatic.com/sc-pattern-library/dist/c…229b163ea583063688.css
http://css.bbystatic.com/site-control-page/less/ma…c75f07e24ab8d6bcb8.css
http://css.bbystatic.com/lib-priceblock/styles-s-0…5c5a4f69230b2a6b72.css
http://css.bbystatic.com/lib-add-to-cart-button/ad…8585619b74f0914ee7.css
http://css.bbystatic.com/header-footer/main-s-bb77…d385c68fec85243b48.css
http://css.bbystatic.com/suggest/suggest-view-clie…a4c3d993229f33ff95.css
Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 35% of the final above-the-fold content could be rendered with the full HTML response.
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://cdn.optimizely.com/js/8143030612.js (2.1 minutes)
http://s.btstatic.com/tag.js (15 minutes)
http://www.googletagservices.com/tag/js/gpt.js (15 minutes)
http://pagead2.googlesyndication.com/pagead/osd.js (60 minutes)
http://d1af033869koo7.cloudfront.net/psp/bestbuy-v1-001/247px.js (2 hours)
http://d1af033869koo7.cloudfront.net/psp/platform/default/247fwk.js (2 hours)
http://d1af033869koo7.cloudfront.net/psp/platform/default/247loader.js (2 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/en_U…ht=138;canvasWidth=138 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/en_U…ht=138;canvasWidth=138 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/en_U…ht=138;canvasWidth=138 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/stor…ht=138;canvasWidth=138 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/stor…ht=138;canvasWidth=138 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/stor…ht=138;canvasWidth=138 (4 hours)
http://pisces.bbystatic.com/image2/BestBuy_US/stor…ht=138;canvasWidth=138 (4 hours)
https://pisces.bbystatic.com/BestBuy_US/store/ee/2…eight=309;maxWidth=457 (4 hours)
https://pisces.bbystatic.com/BestBuy_US/store/ee/2…eight=309;maxWidth=457 (4 hours)
https://pisces.bbystatic.com/BestBuy_US/store/ee/2…eight=309;maxWidth=457 (4 hours)
http://img.bbystatic.com/BestBuy_US/js/abtImgServerConfig.js (6 hours)
http://img.bbystatic.com/BestBuy_US/js/tracking/brightTag-min.js (6 hours)
http://img.bbystatic.com/BestBuy_US/store/rtb/util/js/geo-target-min.js (6 hours)
http://www.bestbuy.com/api/1.0/carousel/prices?sku…228109,5606300,4801802 (10.6 hours)
Optimize images

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 61.3KiB (36% reduction).
Compressing http://img.bbystatic.com//BestBuy_US/store/ee/2017…6-umbrella-0507/sv.jpg could save 27.4KiB (61% reduction).
Compressing https://tpc.googlesyndication.com/simgad/14710178289319155642 could save 11.3KiB (63% reduction).
Compressing https://pisces.bbystatic.com/BestBuy_US/store/ee/2…eight=309;maxWidth=457 could save 5.4KiB (18% reduction).
Compressing https://pisces.bbystatic.com/BestBuy_US/store/ee/2…eight=309;maxWidth=457 could save 4.4KiB (20% reduction).
Compressing https://pisces.bbystatic.com/BestBuy_US/store/ee/2…eight=309;maxWidth=457 could save 2.8KiB (24% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 could save 1.1KiB (19% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 could save 1.1KiB (21% reduction).
Compressing http://css.bbystatic.com/sc-stars/images/mini-yell…ca932342c56a531317.png could save 1.1KiB (62% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/en_U…ht=138;canvasWidth=138 could save 1.1KiB (29% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 could save 1KiB (20% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 could save 1KiB (20% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/stor…ht=138;canvasWidth=138 could save 1,009B (23% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/en_U…ht=138;canvasWidth=138 could save 958B (23% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 could save 910B (21% reduction).
Compressing http://pisces.bbystatic.com/image2/BestBuy_US/imag…eight=150;maxWidth=150 could save 780B (23% reduction).
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 6.4KiB (70% reduction).
Compressing http://tie.app.247-inc.net/psp/bestbuy-v1-001/defa…android&br=c~27.0.1453 could save 5.6KiB (73% reduction).
Compressing http://tags.bluekai.com/site/15749?ret=html&phint=…1c93ab1f1c93&r=7975346 could save 722B (52% reduction).

bestbuy.com Mobile Resources


Total Resources121
Number of Hosts30
Static Resources84
JavaScript Resources70
CSS Resources6

bestbuy.com Mobile Resource Breakdown