Email Open Rates by Industry

Increasing email open rates – 3 top techniques for newsletters

One of the things I have been very focused on over the last 2 weeks is email “open rates”. Since this blog now has 100K+ subscribers, it is a very important metric to me. I dont get too many metrics beyond the open rate since the WordPress hosting that I use provides only that metric.

Email open rate research suggests that open rates vary from 15% to 25% with the average being 22%. The open rate for this blog had hovered around 17% (that’s low) and now after a few tweaks has inched up to 19%.

Email Subject line length
Email Subject line length

The best days for open rates for this blog have been Thursday and between the hours of 7 am Pacific (730 pm India time) to 9 am Pacific (10 pm India).

There are 3 changes I made which have progressively yielded better open rates.

  1. Writing more effective headings / Subject lines of the right length. This is the #1 thing I am focusing on. On an ongoing basis, I spend 23-28 minutes a day writing a blog post. In the first few months, I’d spend 95% of that time writing the blog post and less than 2% of the time writing up the heading or Subject line. Now I am spending 15% of the time coming up with the right heading. The other experiment I am conducting is taking my old blog posts and ReTweeting them with new headlines to understand how to write catchy and effective Subject lines.
  2. Moving from inline images to featured images. WordPress has an option called “featured image”. If you choose that, it appears as an image at the top of the post, instead of inline. While most email clients filter images and the use has to explicitly download them, images are very important for people reading blog posts on my site. So the best compromise is to not have inline images but instead have it featured. That way it does not appear on the email body but definitely appears on the blog post. If you can do 2 images, then your open rates increase even further.
  3. Consistent time of publishing.This is pretty obvious, but if you setup a routine to send emails and publish posts, you will get a higher open rate. So, even if you write your blog posts at a time that’s not your usual time, publishing it “later” helps ensure the open rates are higher.