Load Performance

GET Requests · The number of requests for resources to load the page. bestbuy.ca made 203 requests for various resources. The average is 170 requests to load a page.
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Improve
Excellent
JavaScript Requests · The number of .js files that were loaded. bestbuy.ca made 125 requests for external JavaScript files. The average JavaScript file load is 55.
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Improve
Excellent
Stylesheet Requests · The number of .css files that were loaded. bestbuy.ca made 4 requests for StyleSheets. The average CSS file request load is 7.
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Improve
Excellent
Document Size · The total amount of data transferred when loading bestbuy.ca was 3,886,985 bytes. The average is 2,247,876 bytes.
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Improve
Excellent
HTML Size · The size of the main HTML page for bestbuy.ca was 60,082 bytes. The average is 45,845 bytes.
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Improve
Excellent
Maximum Server Latency · The worse delay in time when connecting to resources on the page. bestbuy.ca worse server latency is 223.44ms. The average worse server latency is 228.45ms.
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Improve
Excellent
Maximum Round Trip Time · The worse case RTT time for the furthest away resource on the page. bestbuy.ca worse RTT is 42.87ms. The average worse RTT is 71.19ms. All tests are carried out from Eastern USA.
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Improve
Excellent

Page Performance

First Render · The performance of rendering the webpage to the end user.
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Improve
Excellent
Render Blocking Scripts · Scripts that block rendering of content to the page.
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Improve
Excellent
Layout Shift · The shifting of the content of the page as it loads images and other resources.
Improve
Excellent
Page Redirects · Resource that delay by redirecting to other resources before loading.
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Improve
Excellent
HTTP2 · HTTP2 providers performance improvements over HTTP1.
Improve
Excellent
Text Compression · Gzip and other compression algorithms to render content.
Improve
Excellent
Minified JavaScript · Compressed and minified JavaScript resources.
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Improve
Excellent
Minified CSS · Compressed and minified CSS resources.
Improve
Excellent
Duplicate JavaScript · JavaScript duplication across the site.
Improve
Excellent
Unused CSS · CSS rules not used by the webpage.
Improve
Excellent

⭐ on the performance charts below represents where BESTBUY.CA scores.

Overall Score

Our scores are based on the average of our testing across top sites on the Internet.

Overall
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bestbuy.ca scored 72% overall benchmark. Worse than the 81% average.

Performance
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Best Practices
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SEO
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Accessibility
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Filter by Performance

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Issues
🤖 Robots.txt

Robots.txt file on this site was not valid when we visited it. 6% of sites tested have this issue.

🪟 Meta Viewport

Meta Viewport is missing or is configured in a way that it does not support mobile devices properly. 16% of sites tested have this issue.

📄 Document Write

The page has document.write JavaScript which is considered bad. 41% of sites tested have this issue.

🔃 Unload Listeners

The page has an unload listener which affects browser memory caches. 44% of sites tested have this issue.

🖼 Image Sizes

Images on the page don't have width, height or aspect ratio. 72% of sites tested have this issue.