CTOR calculator (click-to-open rate)
Work out your click-to-open rate from unique opens and clicks. Formula, worked examples, and why Apple MPP inflates opens and drags CTOR down.
Articles
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How to Stop Repurposed Newsletter Content Being Flagged as Duplicate Content
How to republish newsletter content on your blog without duplicate content problems: what Google actually does, noindexing archives, and canonical tags.
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How Nathan Barry Uses ConvertKit
How ConvertKit CEO Nathan Barry uses his own product: the automations behind his $149 paid newsletter, ConvertKit Commerce, and a 15,000-subscriber local side project.
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Top Newsletter Directories to Grow Your List (2026)
Get your newsletter discovered — and build inbound links for SEO — by adding it to the top newsletter directories. Includes the info to prepare before you start.
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Email Marketing Benchmarks For Online Publishers (2024)
Here are the email marketing benchmarks for online publishers vs. all other industries (and what to do if yours are falling short)
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Why Your ESP Might Not Provide an SPF TXT Record
Why many ESPs no longer ask you to add an SPF TXT record, how a custom return-path handles SPF instead, and what that means for DMARC alignment.
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A Dive into Bot Eat Brain's Newsletter Success (Podcast Notes)
Dive into the incredible path of Bot Eat Brain with Anthony Castrio on SparkLoop's podcast! Discover how a simple newsletter idea transformed into a $50K …
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Is Email Marketing an Inbound or an Outbound Strategy?
Explore the dual nature of email marketing as both an inbound and outbound strategy, and understand how to leverage it effectively for your business growth.
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10+ Proven Email Marketing Best Practices to Boost Success
The email marketing best practices that actually move results: personalization, segmentation, clean lists, testing, and meeting Gmail and Yahoo's rules.
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Choosing the Right Email Newsletter Software: 9 Questions to Ask
Nine questions to ask before choosing email newsletter software, from cost and integrations to deliverability, authentication and getting your data out.
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6 Benefits of Email Marketing For Your Business
Six reasons email still outperforms most marketing channels: an audience you own, low cost, precise targeting, direct revenue and clear data.
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Your Free, Easy Instagram Hashtag Generator: Sistrix
Use this free Instagram hashtag generator to ensure you're using the right hashtags to give your Instagram posts the best chance of success.
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Create Email Subject Lines That Get Opened: A Guide for Newbies
How to write email subject lines people actually open: what makes them work, common mistakes, length on mobile, and how to test them properly.
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A/B Testing For Email Campaigns: Your Quick Guide
How to run email A/B tests that tell you something real: what to test, how big your sample needs to be, and why to judge results on clicks, not opens.
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How Large Can My Email Be Before It's Clipped by Gmail?
Gmail clips emails with more than about 102KB of HTML. Here's what counts towards that limit, what clipping costs you, and how to stay under it.
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Understand The Digital Markets Act (DMA) in 2 Minutes
What the EU's Digital Markets Act is, which Big Tech gatekeepers it covers, what it requires of them, and how it's being enforced so far.
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How to Subscribe to Revue Newsletters Directly From Tweets
Revue writers have a neat new feature that allows Twitter users to subscribe to their Revue newsletter with just one click within a Tweet.
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How Does Apple Mail Privacy Protection Work on iOS 15?
What Apple Mail Privacy Protection actually does to your open data, which of your metrics and automations it affects, and how to work around it today.
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37 Quick-Fire Ideas For Increasing Facebook Engagement
Want your audience on Facebook to continue seeing your posts, and in turn, help to build your community and drive more newsletter signups via Facebook? These…
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How to Advertise Your Newsletter in Other Newsletters — 2 Methods
How to grow your list by advertising in other newsletters: ad marketplaces, paid recommendations and direct deals, plus how to judge what you get back.
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21 Ecommerce Incentives to Offer Your Mailing List
Buy running email campaigns that promote carefully crafted ecommerce incentives, you can make a sizeable impact to the success of your business.
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Read Magnets: The Secret to Better Email Scroll Rates
A Read Magnet is an element in your template that's specifically designed to prompt readers to scroll further than they usually would. Here's how to use them.
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14 Email Marketing Tests To Improve Performance
Run these email marketing tests to improve the performance of your email campaigns and improve your open rate, click through rate, and conversions
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Email Engagements Stats Every Marketer Should Know
These email engagement stats have been taken from over 9 billion email sends to help you shape your own email marketing strategies around them.
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Email Deliverability Benchmarks (2020)
Wondering how your own email deliverability compares to global and regional benchmarks? This brief report tells all.
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Boost Christmas Email Marketing Campaigns With These 10 Tips
Email marketing at Christmas offers huge opportunity to explore untapped markets and enjoy massive growth, but only if you approach it in the right way.
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30+ Free Email Marketing Tools For Better Newsletter Performance
There are plenty of free email marketing tools that all email marketers can use to save time, money, and improve campaign performance. These are our favorites.
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Why Setting up Multiple Newsletters Might be a Good Idea
Having multiple newsletters for your email list can be a simple way to help you achieve multiple goals. Here's why you might want to give it a try.
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5 Email Template Builders That Are Worth Your Time
Create high-end, responsive email templates without writing a single line of code, with these trusted email template builders that are actually worth your t…
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Understanding Google Postmaster Tools: What You Need to Know
How Google Postmaster Tools works today, what each dashboard tells you about your Gmail deliverability, and what to do when the numbers start to slip.
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Email Marketing For Events — 6 Tips and 10 Email Examples
Email marketing can help with every aspect of organizing and running a sucessful event. It's a marketing medium that shouldn't be overlooked, and with these …
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How to Bulk Upload and Schedule to Buffer Using Bulk Buffer
If you want to cut down on the amount of time you're spending scheduling social media posts, learning how to bulk schedule them in advance is a god-send.
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17 Ways to Monetize Your Email List
In this post we bring you tips, tricks, and 17 specific ways to monetize your email list so you can finally run an email list that's profitable!
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Switching Email Service Providers — 19 Steps For Success
A step-by-step checklist for switching email service providers without hurting your deliverability, from cleaning your list to warming up sends.
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Grow Your Email List — 13 Simple & Creative Strategies
Naturally, one of foundations of email marketing is building an email list that's full of subscribers who actually want to receive your newsletter and who …
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Understanding Email Bounce Rates — Definition, Calculation & Tips
What an email bounce rate is, the difference between hard and soft bounces, and how to calculate and reduce yours to protect your sender reputation.
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25 Stunning Responsive HTML Email Templates (2020)
To ensure your content is as effective as possible, it should always be displayed to your subscribers in a professional and attractive way, no matter what …