By coding the page state into the URL, even single-page web applications can support deep bookmarks and the browser’s back button. The most accepted approach is to utilize the location hash, i.e. the local part of the URL. This article explains this technique and what pitfalls you should be aware of, based on my team’s experience from building an AJAX interface for Solr. You will also learn about the HTML5 History API, which is a second, more modern technique.
Serious on-site optimization begins with the head tags of your HTML documents. For example, up to 150 characters from the description are displayed on the search result pages. This article gives a concrete guideline for writing the HTML head section. You will also learn the meaning of important and even some mysterious meta tags, e.g. GEO values, and find out what is now deprecated.