HTTPS enforced with HSTS in Email marketing
We measure this ourselves on their own site. It is the cheapest security control there is.
- 6Published
- 11Vendors measured
- 55%Of those measured
- 2026-08-31Checked
55% here against 75% across every category we measure. Email marketing sits below the overall share for this criterion.
Back to HTTPS enforced with HSTS across all categories, or to Email marketing.
Published
HTTP redirects to HTTPS and the HSTS header is set.
No enforced HTTPS with HSTS found.
We reached at least one address for each of these vendors and none of them carried it. That is what we found at the addresses we checked, on the date we checked them, and not a statement about what the vendor has.
| Vendor | What we found |
|---|---|
| Campaign Monitor | 2 addresses checked |
| CleverReach | 2 addresses checked |
| Kit | 2 addresses checked |
| Mailchimp | 2 addresses checked |
| MailerLite | 2 addresses checked |
Not measured
We could not look at these, or their robots.txt asks us not to. That says something about our measurement, not about them, and they are left out of the percentage above.
| Vendor | What we found |
|---|---|
| Mailjet | This vendor was not measured because our run stopped waiting for it. |
Found something we missed? Tell us and the next run picks it up.