free tools for hubspot
#1 split test automation
with split automation workflow action, you can run real A/B (or A/B/C/D…) tests inside hubspot workflows — without the manual work.
no more downloading contacts, randomizing in spreadsheets, and re-uploading lists.
Test anything — email content, send times, workflow paths—and run it for as long (or short) as you want. when you’re ready, you choose the winner.
more flexibility. more variations. more accurate results.



#2 deliverability audit
find out if your emails are truly landing in inboxes — or getting lost in spam. this deliverability audit free tool analyzes your hubspot email performance across major providers like gmail, outlook, and yahoo, helping you spot provider-specific deliverability issues. Run the audit in minutes, see where problems exist, and get actionable tips to fix them so you can protect your sender reputation and boost engagement.
more visibility. fewer surprises. better inbox placement.
diagnose and fix hubspot deliverability
issues in 3 easy steps
step 1
set up your audit
test for differences in engagement between the five most popular B2B and B2C email providers.
deliverability audit can also separate free providers from business emails, and identify which business domains are powered by google workspace and which are using office365.


step 2
compare your results
is your verizon media group (aka yahoo/AOL/verizon) open rate lower than gmail and microsoft?
it might be worth investigating. email engagement rates across providers generally don’t vary much unless there’s a technical or deliverability issue with a specific provider
step 3
make an action plan and come back in the inbox
once you've identified which email provider(s) are having deliverability issues, you can take targeted steps to fix them. Install deliverability audit today and we'll send you our email optimization guide for hubspot that's filled with best practices for improving hubspot email deliverability.
