Page speed is important to user experience and site revenue.
Faster times have been shown to correlate with lower bounce rates and higher average time on page. Some sites have seen dramatic increases (4-6X!) in site revenue after fixing some basic site issues.
Our recommendations for increasing both site speed and revenue are the following:
1. Using the sulvo "up.js" head tag as high up in the head as you can
2. If you use sticky ad tags in the body then calling those as high up in the body as possible
3. Avoiding the use of blocking javascript (synchronous) inside the body. Sync code in the body will significantly delay getting Sulvo's ad impressions. The Sulvo head tag is ok being called sync as this does not affect the site due to its extremely lightweight size, instant loading capabilities regardless of users location, and benefiting from the world's fastest CDNs.
4. Avoiding the use of inline CSS (instead it is better to be loading it from a file that can be loaded asynchronously and can also be cached)