websudoku.com Web Sudoku - Billions of Free Sudoku Puzzles to Play Online

Mobile Usability



Mobile Speed



Last tested: 2017-08-29

websudoku.com Mobile Usability: 99/100
websudoku.com Mobile Usability Test 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 <a href="https://play.g…aign%3Doverlay">Get the free app</a> is close to 2 other tap targets.
The tap target <a id="menu-skip-link" href="http://websudoku.com/">Continue to website</a> is close to 1 other tap targets.
The tap target <a href="http://www.web…ku.com/?signin">Sign In to Web Sudoku</a> is close to 1 other tap targets.
The tap target <input type="submit" name="pause"> and 1 others are close to other tap targets.
websudoku.com Mobile Speed: 78/100
websudoku.com Mobile Speed Test Quick Overview

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://show.websudoku.com/android-promo/images/low/bgboard-bottomleft.png (expiration not specified)
http://show.websudoku.com/android-promo/images/low/bgboard-bottomright.png (expiration not specified)
http://show.websudoku.com/android-promo/images/low/bgboard-center.png (expiration not specified)
http://show.websudoku.com/android-promo/images/low/bgboard-topleft.png (expiration not specified)
http://show.websudoku.com/android-promo/images/low/bgboard-topright.png (expiration not specified)
http://show.websudoku.com/android-promo/images/low/check.png (expiration not specified)
http://show.websudoku.com/android-promo/images/low/device-landscape.png (expiration not specified)
http://show.websudoku.com/android-promo/images/low/device-portrait.png (expiration not specified)
http://show.websudoku.com/android-promo/modernizr.js (expiration not specified)
http://show.websudoku.com/android-promo/promo-init.js (expiration not specified)
http://show.websudoku.com/android-promo/promo-layout.css (expiration not specified)
http://show.websudoku.com/android-promo/promo-low.css (expiration not specified)
http://show.websudoku.com/android-promo/promo-style.css (expiration not specified)
http://show.websudoku.com/download-app-store.png (expiration not specified)
http://show.websudoku.com/get-it-google-play.png (expiration not specified)
http://show.websudoku.com/index29.js (expiration not specified)
http://show.websudoku.com/index_sidekeys.js (expiration not specified)
http://show.websudoku.com/logo-108x108.gif (expiration not specified)
http://show.websudoku.com/style24.css (expiration not specified)
http://www.websudoku.com/images/transparent.gif (expiration not specified)
http://www.google-analytics.com/analytics.js (2 hours)
Optimize images

Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 67.6KiB (16% reduction).
Compressing http://show.websudoku.com/android-promo/images/low/bgboard-bottomleft.png could save 36.8KiB (16% reduction).
Compressing http://show.websudoku.com/android-promo/images/low/bgboard-topleft.png could save 9.2KiB (19% reduction).
Compressing http://show.websudoku.com/android-promo/images/low/bgboard-center.png could save 7.9KiB (15% reduction).
Compressing http://show.websudoku.com/android-promo/images/low/bgboard-bottomright.png could save 6.8KiB (15% reduction).
Compressing http://show.websudoku.com/android-promo/images/low/bgboard-topright.png could save 4.1KiB (13% reduction).
Compressing http://show.websudoku.com/download-app-store.png could save 1.2KiB (31% reduction).
Compressing http://show.websudoku.com/get-it-google-play.png could save 907B (21% reduction).
Compressing http://show.websudoku.com/android-promo/images/low/check.png could save 732B (21% reduction).
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 37.4KiB (73% reduction).
Compressing http://show.websudoku.com/? could save 18.2KiB (78% reduction).
Compressing http://show.websudoku.com/android-promo/modernizr.js could save 7.6KiB (73% reduction).
Compressing http://show.websudoku.com/index29.js could save 4.6KiB (65% reduction).
Compressing http://show.websudoku.com/style24.css could save 3.5KiB (70% reduction).
Compressing http://show.websudoku.com/android-promo/promo-layout.css could save 1KiB (67% reduction).
Compressing http://show.websudoku.com/android-promo/promo-init.js could save 994B (56% reduction).
Compressing http://show.websudoku.com/android-promo/promo-style.css could save 883B (62% reduction).
Compressing http://show.websudoku.com/index_sidekeys.js could save 632B (56% reduction).
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 5.7KiB (34% reduction).
Minifying http://show.websudoku.com/android-promo/modernizr.js could save 3.9KiB (38% reduction).
Minifying http://show.websudoku.com/index29.js could save 1.8KiB (27% reduction).

websudoku.com Mobile Resources

Total Resources27
Number of Hosts6
Static Resources22
JavaScript Resources5
CSS Resources5

websudoku.com Mobile Resource Breakdown