SSL Guardian
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SSL Certs on Autopilot

Free SSL apply & deploy · Auto-renew before expiry · One-click CDN deploy · Wildcard & multi-domain

Sign Up Free · Get a Certificate
Let's Encrypt & ZeroSSL Auto-renew before expiry DNS / CNAME / File validation 30+ CDN & server targets

选择你的证书方案

Single Domain

Protect example.com or www.example.com

DV validation · Auto-renewal

Multi-Domain

One cert for up to 5 domains

DV validation · SAN management

Wildcard

*.example.com covers all subdomains

DV validation · Unlimited subs

三步搞定

1

Enter domain

Type your domain and pick a certificate type

2

Verify ownership

Automatic DNS validation or CNAME delegation

3

Issue & deploy

Cert issued automatically, push to CDN or server

为什么选择 SSL Guardian

Fully Automated

ACME renews before expiry. DNS-01, CNAME delegation, and HTTP-01 are supported—no manual intervention ever.

Multi-Cloud Deploy

Push certs to Aliyun CDN, Tencent CDN, Cloudflare, AWS, Azure, BT Panel, 1Panel, nginx, and 30+ targets in one click.

Clear Plans

Single, multi-domain, and wildcard certs. Sign up and apply—no hidden gimmicks.

Secure by Design

Private keys encrypted at rest. Worker runs ACME locally. Real-time cert status and deploy history in dashboard.

常见问题

How long are Let's Encrypt certificates valid?

Let's Encrypt certs are valid for 90 days. SSL Guardian renews them automatically before expiry—no manual work needed.

What is a wildcard SSL certificate?

A wildcard cert protects *.example.com and all its subdomains (www, api, mail, etc.). One certificate covers unlimited subdomains.

What's the difference between multi-domain and single-domain?

Single-domain protects one domain name. Multi-domain (SAN) protects up to 5 different domains with a single certificate for easier management.

Which DNS providers support auto-validation?

30+ providers including Aliyun DNS, Tencent DNSPod, Cloudflare, AWS Route53, Azure DNS, and more. CNAME delegation is also available.

How do I deploy certificates to CDN after issuance?

Select your target in the console—Aliyun CDN, Tencent CDN, Cloudflare, AWS CloudFront, etc. The Worker pushes PEM bundles automatically.

Which certificate authorities are supported?

Let's Encrypt and ZeroSSL. Both are globally trusted DV CAs with excellent browser and mobile compatibility.