Every piece of content should be as long as it takes to convey the message, and no longer.
THE IDEAL CHARACTER COUNT
TWITTER
Tweets should be 71-100 characters.
Tweet shorter than 100 characters have a 17% higher engagement rate.
FACEBOOK
Facebook updates should be 40 characters.
Posts with 40 charters receive 86% more engagement than posts with higher character count.
GOOGLE PLUS
Google Plus posts should be 60 characters.
If your Google+ headline can’t be contained in one line, your first sentence must be a gripping teaser to get people to read more.
PARAGRAPHS
Paragraphs should be 40-55 characters.
Opening paragraphs with larger fonts and fewer characters per line make it easier for the reader to focus and jump quickly from one line to the next.
DOMAIN NAMES
Domain names should be 8 characters maximum.
The best domain names are short, easy to remember and spell, don’t contain hyphens or numbers, and have a .com extension.
HASHTAGE
Hashtags should be 6 characters.
Don’t use spaces or special characters, don’t start with or only use numbers, and be careful with using slang.
EMAIL SUBJECTS
Email subject lines should be 28-39 characters.
Subject lines containing 28-39 characters get an open rate of 12.2% and a click rate of 4% on average.
TITLE TAGS
Title tags should be 55 characters.
Make sure your title doesn’t exceed 60 characters or it will get shortened with an ellipsis.
THE IDEAL WORD COUNT
BLOG HEADLINES
Blog headlines should be 6 words.
Only the first 3 words and the last 3 words of a headline tend to be read. Rather than working about length, you should focus on making every word count.
LINKEDIN POSTS
LinkedIn posts should be 25 words.
If you’re marketing to businesses write a 16-25 word post. If you’re marketing to consumers, though, 21-25 word post would get the most shares.
BLOG POSTS
Blog posts should be 1,600 words.
Overall, 74% of posts that are read are under 3 minutes long and 94% are under 6 minutes long.
THE IDEAL NUMBER OF MINUTES
YOUTUBE
The most popular videos are pretty short. After analysing the length of the top 50 YouTube videos, the average length was 2 minutes 54 seconds.
PODCASTS
The average Podcast listener stays connected for 22 minutes on average. Studies show students zone out after 15-20 minutes of lecture time. After 20 minutes attention and retention rates crash.
TED TALK
All TED Talk presenters are required to come in under the 18 minute mark based on studies on people’s attention spans. Putting a time limit forces people to be more concise in what they want to say as well as increased chances of vitality.
SLIDESHARE
If you’re following the rules of good presentation design, you’re creating in-depth presentations with an ideal number of about 61 slides.
