Costco.com.tw Site Title
Costco Taiwan 好市多線上購物 | Costco 好市多線上購物
Costco.com.tw Meta Description
好市多線上購物為Costco好市多服務各地會員所成立的網路購物平台，無論是大型傢俱、生活家電、珠寶鑽石、休閒零嘴、冷凍食品、居家用品、飲料茶水、休閒票卷，多種獨特限量海外進口商品皆在好市多線上購物。好市多線上購物提供不只是好市多賣場的衍生服務，更多的是網路獨家精選商品以及優惠活動，輕鬆擁有生活上的美好。
Costco.com.tw Test Results
costco.com.tw Mobile Usability: 99/100
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
<div class="owl-pagination"></div> is close to 1 other tap targets .
...
costco.com.tw Mobile Speed: 30/100
Quick overview:
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1.4MiB (68% reduction).
Compressing https://www.costco.com.tw/medias/sys_master/banners/h20/he2/10637041041438.jpg could save 147.8KiB (52% 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://www.googletagmanager.com/gtm.js?id=GTM-K4GJLJ (15 minutes)
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 11 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
https://www.costco.com.tw/_ui/shared/js/trackermediator.js
...
Optimize CSS Delivery of the following:
https://www.costco.com.tw/_ui/addons/cybersourcepaymentaddon/responsive/common/css/cybersourcepaymentaddon.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 53% of the final above-the-fold content could be rendered with the full HTML response.
...
Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 2.8KiB (41% reduction).
Minifying https://www.costco.com.tw/_ui/addons/cybersourcepaymentaddon/responsive/common/js/cybersourcepaymentaddon.js could save 1.2KiB (96% reduction) after compression.
...
Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 1.2KiB (23% reduction).
Minifying https://www.costco.com.tw/_ui/addons/cybersourcepaymentaddon/responsive/common/css/jquery-ui.css could save 1,007B (25% reduction) after compression.
...
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