Sponsor comparison
Newsletter sponsorship activity, audience reach, and ad formats — side by side.
Sponsorship breakdown
Artificial Intelligence
Developer Tools
Dense Discovery
31K subscribers
Software Testing Weekly
3K subscribers
31K subs
3K subs
Email testing API that gives every test its own inbox and returns sign-up codes …
November 2024
November 2026
Ad copy examples
Granola
No ad copy available
Mails.ai
Email testing API that gives every test its own inbox and returns sign-up codes or magic links as JSON.
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Contact details, decision makers, email addresses, and complete sponsorship history for both brands.
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