6,337 Cold Emails Reveal What Actually Gets Replies (And Backlinks)

E1194: Cold outreach is one of the most effective ways to build backlinks, earn media coverage, and get your content in front of the right people. But most outreach emails get ignored.

A Reddit user analyzed 6,337 cold emails and uncovered striking differences in reply rates based on email length, subject lines, follow-ups, and who receives the message.

I break down these findings, share advice from experienced link builders, and explain the cold outreach strategies I've personally used to get viral videos onto national television, earn coverage from major publications, and promote businesses.

What the data from 6,337 cold emails reveals:

- Emails under 100 words earned an 11.9% reply rate.

- Emails between 100 and 200 words earned just 1.9%.

- Emails over 200 words earned a 0.3% reply rate.

- The ideal email length fell between 60 and 90 words.

- One email earned a 4.1% reply rate. One follow-up increased that to 6.6%.

- Two follow-ups increased replies to 6.9%, with diminishing returns beyond that.

- Subject lines under 30 characters achieved an 83.7% open rate, compared to 69.5% for longer ones.

- Subject lines containing numbers performed particularly well.