Gps.gov Site Title

GPS: The Global Positioning System

Gps.gov Meta Description

Official U.S. government information about the Global Positioning System (GPS) and related topics

Gps.gov Test Results

gps.gov Mobile Usability: 74/100

Quick overview:
Size content to viewport
The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.
The page content is 920 CSS pixels wide, but the viewport is only 484 CSS pixels wide. The following elements fall outside the viewport:
The element <div id="tagline">Official U.S.…related topics</div> falls outside the viewport.
...
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 <a href="#search" class="skip">Skip menu</a> is close to 2 other tap targets .
...

gps.gov Mobile Speed: 62/100

Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 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.
Optimize CSS Delivery of the following:
https://www.gps.gov/parts/style-main.css
...
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.gps.gov/parts/federated-analytics.js?agency=DOC&subagency=NOAA&pua=UA-22754890-1 (15 minutes)
...
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 34.3KiB (74% reduction).
Compressing https://www.gps.gov/parts/federated-analytics.js?agency=DOC&subagency=NOAA&pua=UA-22754890-1 could save 14.1KiB (73% reduction).
...
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 26.2KiB (24% reduction).
Compressing https://www.gps.gov/satellite.jpg could save 8.5KiB (68% 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 8KiB (28% reduction).
Minifying https://www.gps.gov/parts/style-main.css could save 5.2KiB (29% reduction).
...

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Last Tested: