Alternatives to Knock
Other Transactional email and notifications vendors we measure, sorted by how much they publish that Knock does not. This is a comparison of disclosure, not of features or fitness.
12 shown of 23 that differ from Knock on at least one criterion we measured for both. Public transparency score, not a product or security rating.
Knock has 6 gaps in what we could measure: Status page with history, Certifications named, Uptime SLA with a figure, No third-party tracking before consent, security.txt (RFC 9116), Named privacy contact. The column “publishes and Knock does not” is the one that closes them.
| Vendor | Score | Publishes, and Knock does not | Knock publishes, and they do not | |
|---|---|---|---|---|
| Mailosaurmailosaur.com | 74/100 | 4 Status page with history, Certifications named, Uptime SLA with a figure, +1 | 1 Data processing agreement | Compare |
| Ablyably.com | 39/100 | 4 Status page with history, Uptime SLA with a figure, security.txt (RFC 9116), +1 | 4 Data processing agreement, Subprocessor list, Data location stated, +1 | Compare |
| Resendresend.com | 83/100 | 3 Certifications named, No third-party tracking before consent, security.txt (RFC 9116) | nothing | Compare |
| Streamgetstream.io | 48/100 | 3 Status page with history, Certifications named, Named privacy contact | 3 Data processing agreement, Data location stated, Notice before subprocessors change | Compare |
| ClickSendclicksend.com | 35/100 | 3 Status page with history, Certifications named, Named privacy contact | 4 Data processing agreement, Subprocessor list, Data location stated, +1 | Compare |
| Couriercourier.com | 52/100 | 1 Status page with history | 2 Data processing agreement, Notice before subprocessors change | Compare |
| Mailtrapmailtrap.io | 48/100 | 1 Named privacy contact | 2 Data location stated, HTTPS enforced with HSTS | Compare |
| Novunovu.co | 48/100 | 1 Certifications named | 2 Subprocessor list, Notice before subprocessors change | Compare |
| Plunkuseplunk.com | 48/100 | 1 Named privacy contact | 2 Subprocessor list, HTTPS enforced with HSTS | Compare |
| Batchbatch.com | 30/100 | 1 Status page with history | 4 Data processing agreement, Subprocessor list, Public pricing, +1 | Compare |
| Copernicacopernica.com | 26/100 | 1 Status page with history | 4 Data processing agreement, Subprocessor list, Data location stated, +1 | Compare |
| SocketLabssocketlabs.com | 9/100 | 1 No third-party tracking before consent | 6 Data processing agreement, Subprocessor list, Data location stated, +3 | Compare |
Only criteria we could measure for both are counted. Where we could measure one and not the other, the row is silent: that would be a statement about our measurement, not about either vendor. Every single result with its source is on the two profiles.