Jamanetwork.com Site Title

JAMA Network | Home of JAMA and the Specialty Journals of the American Medical Association

Jamanetwork.com Meta Description

Stay up to date, maintain your CME with the latest research, author interviews, apps, and learning courses from JAMA and the Specialty Journals.

Jamanetwork.com Test Results

jamanetwork.com Mobile Usability: 100/100


jamanetwork.com Mobile Speed: 42/100

Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 1 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.
Remove render-blocking JavaScript:
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...
Optimize CSS Delivery of the following:
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Enable compression
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Enable compression for the following resources to reduce their transfer size by 581.2KiB (78% reduction).
Compressing https://cdn.jamanetwork.com/UI/app/dist/app.min.css?v=637108957811488077 could save 357.1KiB (85% 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://api-52-88-19-203.b2c.com/api/ad.gif (expiration not specified)
...
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Compressing https://jamanetwork.com/ImageLibrary/MarketingImages/jnlisten/jnlisten-home-promo-mobile.jpg could save 74.5KiB (71% reduction).
...
Reduce server response time
In our test, your server responded in 0.43 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
Minify HTML
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Minifying https://newsletter.ama-assn.org/docs/crossdomain.html?origin=https%3A%2F%2Fjamanetwork.com could save 167B (23% reduction).
...
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 239B (24% reduction).
Minifying https://jamanetwork.com/UI/app/scss/modules/_trendMD.css could save 239B (24% reduction) after compression.

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