Free vs paid deliverability testing tools
Before a campaign, you check placement. Free and paid tools tell different truths.
Free (Mail-Tester, GlockApps free tier) Pros:
— Zero cost spot-check
— Catches SPF/DKIM/DMARC misconfig
— Good for a quick spam-score read
Free Cons:
— Tests one seed, not real inbox distribution
— No provider-by-provider placement
Paid (GlockApps, Inboxally seed tests) Pros:
— Seed lists across Gmail/Outlook/Yahoo show real placement
— Tracks reputation trends over time
— Spam-word and blacklist monitoring
Paid Cons:
— $50-100+/mo
— Seed tests don't perfectly mirror live engagement
Verdict: Free 3.8/5 for config checks, paid 4.2/5 for placement intelligence.
Who it's for: Run Mail-Tester before every new domain goes live — it'll catch your auth mistakes for free. Pay for seed testing only when you're scaling, troubleshooting a sudden drop, or running client campaigns where placement evidence matters. Don't pay $99/mo to confirm your DKIM is set.
Cold Open
@ColdOpenSEO
Free vs paid deliverability testing tools
Этот пост опубликован в Telegram-канале Cold Open. Подписаться можно по ссылке: @ColdOpenSEO.