Validity vs Litmus
Side-by-side from the Top 11 ranking of GlockApps vs Validity vs Mail-tester: 11 Best Email Deliverability Tools 2026. Last verified June 15, 2026.
The short answer
Validity ranks higher on Top 11 (#2 vs #7) for Email marketers and developers improving inbox placement rates. The enterprise standard for reputation data, sender certification, and large-scale list verification.
At a glance
| Validity | Litmus | |
|---|---|---|
| Top 11 rank | #2 / GlockApps vs Validity vs Mail-tester: 11 Best Email Deliverability Tools 2026 | #7 / GlockApps vs Validity vs Mail-tester: 11 Best Email Deliverability Tools 2026 |
| Score (out of 9.4) | 9 | 7.9 |
| Best for | Enterprise reputation management | Integrated design and deliverability |
| Pricing | $$$$ (Custom pricing, est. >$1500/mo) | $$$ ($199 to $499/mo) |
| HQ | Boston, USA | Cambridge, USA |
| Founded | 2018 | 2005 |
Validity
The enterprise standard for reputation data, sender certification, and large-scale list verification.
www.validity.com/See full entry in GlockApps vs Validity vs Mail-tester: 11 Best Email Deliverability Tools 2026
Litmus
A strong email creation and analytics platform with good, integrated deliverability checks.
www.litmus.com/See full entry in GlockApps vs Validity vs Mail-tester: 11 Best Email Deliverability Tools 2026
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.