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39.net 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="https://cpro.b…net%2F&urlid=0">小孩长高方法</a>is close to 1 other tap targets.
39.net Mobile Speed: 45/100
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 751.1KiB (63% reduction).
Compressing http://pimg.39.net/PictureLib/A/f76/20171124/org_2423981.jpg could save 38.5KiB (63% reduction).
Your page has 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.
Optimize CSS Delivery of the following:
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 189.1KiB (62% reduction).
Compressing https://image.39.net/js/swiper.jquery.min.js could save 63.8KiB (75% 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:
http://askimg.39.net/jingyan/20160919/195265.jpg (expiration not specified)
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.
Minifying https://image.39.net/m/2017/js/m.js?v=20171128102554 could save 2.4KiB (30% reduction).