Making every connection verifiable
We are a certificate team, not a marketplace. Validation, deployment and renewal are handled by the people who sold you the certificate.
Ten years of doing one thing properly
ZUNTRUST started in 2016 with basic HTTPS installation work. At the time, plenty of companies had bought certificates they could not install — or had installed them but still failed on mobile because the intermediate chain was missing. The gap was not certificates. It was someone taking responsibility for the outcome.
So we built around engineering: direct CA integrations, deployment documentation for every common platform, and a support rota that answers at 2 a.m. Today we serve more than 100,000 organizations, from personal blogs to listed companies, with the same standard of support.
As certificate lifetimes shorten and Chinese cryptography requirements expand, certificate management is shifting from a one-off purchase to an ongoing operation. We are opening the automation, expiry alerting and portfolio inspection we use internally to every customer.
Four things we refuse to compromise
01 · Say what is true
If a DV certificate is enough for your use case, we will not sell you EV. If a wildcard cannot cover your second-level subdomains, we say so before you pay.
02 · Own the deployment
A certificate that fails to install is not delivered. We check the chain, the protocols and the redirect before calling it done.
03 · Keep the price visible
No activation fees, no charge for reissues, no surprise renewal markup. Multi-year pricing is quoted up front.
04 · Plan for expiry
Every certificate has an owner and an alert path. Expiry should be a calendar event, never an outage.
How we got here
Each step was driven by a customer problem we could not solve with the previous setup.
Founded
ZUNTRUST starts as a two-person certificate consultancy serving local businesses in Henan.
Direct CA partnerships
Becomes an authorized partner of major public CAs, removing reseller markups and delays.
SM2 practice
Launches a dedicated Chinese cryptography practice for MLPS 2.0 and cryptography assessment projects.
Certificate lifecycle platform
Adds bulk lookup APIs, expiry alerting and renewal management for enterprise portfolios.
100,000+ businesses
Crosses one hundred thousand protected organizations across e-commerce, finance, SaaS and government.
Issuing through publicly trusted roots
Every certificate chains to a root already in browsers and operating systems.
Work with the team that answers
Selection, validation, deployment and renewal — one thread, one owner.