Clear signal for course creators and email marketers
CourseSignal publishes practical comparisons and guides on email deliverability, online course platforms, and async video tools — written in UK English, with upfront advertising disclosures.
- Email deliverability
- Course platforms
- Async video tools
Guides
GlockApps review
Inbox placement testing for serious email senders — what it is for, who should bother, and when a simpler check is enough.
Best email deliverability testing tools (2026)
A buying guide for people who already send and need placement data — not vanity spam scores.
GlockApps pricing explained
Map test frequency to paid plans — with a cited snapshot from the official pricing page.
How to check if your emails land in spam
Auth → content → seed test → fix — a practical workflow without fear-mongering.
Thinkific vs Teachable
Which course platform fits a UK solo creator? Side-by-side without invented plan prices.
Best Loom alternatives (including Tella)
When Loom’s limits push teams to switch, and where Tella sits for creators and course makers.
Product