Proof vs. OneNotary

With Proof, you get 6.8 million notarizations of documented scale, compliance certifications that go beyond ISO 27001, and a notary network Proof builds and operates.

LegalShield logo

#1 rated online notary service

Whether you're a person proving who you are, a business that needs proof, or a developer building the next transaction layer — Proof is the infrastructure underneath.

Why teams switch to Proof

Compliance certifications built for notarization's specific requirements.
IAL2 certification from Kantara, WebTrust audit certification, and AATL- compliant digital certificates. OneNotary holds SOC 2 Type II and ISO 27001, both well- documented. The certifications above are separate, notarization- specific credentials that regulated industries and enterprise procurement teams require beyond those standards.
A notary network with published operational data.
Proof publishes its uptime SLA (99.99%), average notary connection time (under 30 seconds), and off-hours availability data (84.3% of overnight sessions connected in under 30 seconds). OneNotary does not publish equivalent performance benchmarks. For organizations where notarization is a recurring workflow, that data matters when something goes wrong.
Scale built on transaction volume, not network size.
OneNotary publishes a claimed notary count. Proof publishes transaction volume: 6.8 million notarizations processed to date, 1.5 million in 2025 alone, across title companies, law firms, lenders, and government agencies in every RON- enabled state. Those are the numbers that reflect platform maturity in regulated workflows.

How does Proof compare to OneNotary?

header
MISMO RON certified
AICPA SOC 2 Type II
24/7 on-demand notary availability
Bring your own notary
KBA + biometric identity verification
IAL2 certified by Kantara
WebTrust audited
AATL-compliant digital certificates to
notaries
Published uptime SLA
(99.99%)
Biometric fallback with published recovery rate
EasyLink (shareable on-demand link)
As of June 25, 2026
Notarize with Proof

Scale that shows up when transactions
get complex

6.8 million notarizations processed to date, across title companies, law firms, lenders, financial services organizations, and government agencies in every RON- enabled state. Volume at that scale means Proof has processed the edge cases, the complicated signers, and the high-stakes transactions that surface platform limitations.

A notary at the exact moment you need one

The Notarize Network runs 24/7/365 with 99.99% uptime and connects 88.4% of sessions to a notary in under 30 seconds, including 84.3% of sessions during evenings and overnight. Proof publishes all three figures. For organizations where notarization is a recurring workflow, published availability data is the number that matters when a session does not connect.

Certifications that show up in audit reviews

IAL2 from Kantara, WebTrust audit certification, and AATL-compliant digital certificates are the credentials that appear in regulated industry audit reviews beyond SOC 2 and ISO 27001. Proof holds all three specifically for notarization.

IAL2 certification from Kantara, WebTrust audit certification, and AATL- compliant digital certificates. OneNotary holds SOC 2 Type II and ISO 27001, both well- documented. The certifications above are separate, notarization- specific credentials that regulated industries and enterprise procurement teams require beyond those standards.
Column processes public notice affidavits of publication at scale. Before Proof, the workflow was manual, paper-dependent, and prone to error. Since implementing Proof, Column has processed more than 11,800 transactions with an average completion time of 7 minutes.

Frequently asked questions

OneNotary came up everywhere when I searched for RON comparisons. Doesn't that mean they're the best option?

OneNotary publishes more competitor comparison content than any other RON platform, which is why they rank prominently in search results. Visibility in search is a marketing strategy. The comparison worth making is on compliance certifications, platform scale, and published availability data — not on who produces more comparison pages.

How does Proof pricing compare to OnNotary?

Pricing for both platforms varies by volume and plan. You can check out more about Proof’s pricing here.

Can I migrate from OneNotary to Proof?

Yes. Proof's implementation team handles transitions from OneNotary, including for organizations using OneNotary's API integration.