Source: http://www.sitepronews.com/2015/04/08/how-to-boost-seo-rankings-using-headlines-and-taglines/
You can increase your conversions by simply changing your site’s headlines and taglines. Here are some tips on how you can catch and keep the attention of your readers and search engines.
1. Create working titles that catch your users’ interest
Your working title is not your content’s topic. It is more specific and gives readers a concrete idea on what your content is all about.
2. Practice accuracy
Taglines and headlines must state what readers can expect from the post. There are ways on how you can improve your headlines, and keep them accurate – use strong headlines and alliteration, emphasize the usefulness, and use a list.
3. Keep your headlines/taglines short
A long headline or tagline will bore your readers. Keep it under 65 characters so that search engines will not cut it short. For social share-ability, keep the headline under 117 characters.