1728.org Site Title
Calculator City: A Web Resource for Mathematics: Algebra, Geometry, Trigonometry, Calculus, Finance, Measurement Converters Science: Chemistry, Physics, Astronomy
1728.org Meta Description
Calculator City, calculators for algebra, geometry, trigonometry, calculus, finance, astronomy, physics, chemistry, time cards, HTML Colors, percentages, fractions
1728.org Test Results
1728.org Mobile Usability: 99/100
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="mailto:email@example.com">firstname.lastname@example.org</a>and 1 others are close to other tap targets.
1728.org Mobile Speed: 66/100
Your page has 4 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Use asynchronous versions of the following scripts:
Optimize CSS Delivery of the following:
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:
http://1728.org/1728comorg.png (expiration not specified)
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 31.4KiB (63% reduction).
Compressing http://d32hwlnfiv2gyn.cloudfront.net/sp-2.0.0-dm-0.1.min.js could save 31.4KiB (63% reduction).
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 15.6KiB (25% reduction).
Losslessly compressing http://1728.org/timeanddate.png could save 3.5KiB (16% reduction).
Reduce server response time
Minifying http://mobile.dudamobile.com/_dm/s/rt/dist/scripts/d-js-runtime-mobile-package.min.js?version=2015-06-08T09:20:18 could save 979B (2% reduction) after compression.
Minify HTML for the following resources to reduce their size by 1.6KiB (12% reduction).
Minifying http://mobile.dudamobile.com/site/1728_1?url=http%3A%2F%2F1728.org%2F&utm_referrer= could save 1.6KiB (12% reduction) after compression.
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 1.5KiB (12% reduction).
Minifying http://mobile.dudamobile.com/_dm/s/rt/generate_css/1728_1.css could save 870B (12% reduction) after compression.