Wildcard SSL Certificate (DV)

Secure your primary domain and an unlimited number of subdomains instantly with a single certificate. Establish 256-bit strong encryption, eliminate "Not Secure" warnings, and save hours of IT management time.

Secures Unlimited Subdomains

Manage Just One Certificate

Instant Automated Issuance

See Plans & Pricing

PositiveSSL Wildcard

US$166.70 / yr

The Global Bestseller for SMEs

Secures Unlimited Subdomains
Domain Control Validation
Issued in Minutes
$10,000 Warranty*

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Certum Commercial Wildcard

US$160.00 / yr

High European Trust (ETM Certified)

Secures Unlimited Subdomains
Domain Control Validation
Issued in Minutes
€200,000 Warranty*

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RapidSSL Wildcard

US$166.70 / yr

Fast & Low-Cost Entry Level

Secures Unlimited Subdomains
Domain Control Validation
Issued in Minutes
$10,000 Warranty*

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* Warranty coverage and issuance time are subject to the Certificate Authority's official terms.

Our Trusted CA Partners

Why Choose a Wildcard SSL Certificate?

A Wildcard SSL is the most cost-effective and efficient way to secure multiple subdomains simultaneously without the headache of managing dozens of separate certificates.

Ironclad Encryption

Protects sensitive data across all your subdomains with up to 256-bit strong encryption and a robust 2048-bit RSA key.

Unlimited Subdomains

Secure *.yourdomain.com automatically. From mail. to shop. to blog., one certificate protects them all effortlessly.

Cost & Time Efficient

Say goodbye to tracking individual expiry dates. Purchase, install, and renew just one certificate to cover your entire digital footprint.

SNI Supported

Yuan Jhen hosting natively supports Server Name Indication (SNI), meaning you don't need to purchase multiple expensive Dedicated IPs.

Free SSL vs. Paid Wildcard SSL

While Let's Encrypt offers wildcard functionality, it comes with strict technical limitations. Paid Wildcard SSL certificates offer high financial warranties, easier validation, and fewer renewal headaches.

Feature	Free SSL Certificate	Paid Wildcard SSL (Recommended)
Certificate Authority (CA)	Let's Encrypt (Automated via script)	Top CAs like Certum, Sectigo, GeoTrust, RapidSSL
Validity Period	90 Days (Auto-renews via server. Manual updates needed if settings change. No expiration alerts.)	Up to 200 Days (Max validity may shorten in the future. Actual days depend on official CA announcements.)
Wildcard Validation Method	Strict DNS-01 Challenge (Can be complex to automate without API)	Easy Email, HTTP, or DNS Validation
Trust Indicator (Site Seal)	None	Static Site Seal available (Enhances trust)
Financial Warranty	None ($0)	Commercial warranty included (Varies by brand, e.g., $10,000 up to €200,000)
SEO Impact	Basic HTTPS ranking boost	Full SEO benefits, plus higher trust reduces bounce rates
Recommended For	Personal hobbies, staging environments	SMEs, Scaling Businesses, Multilingual Sites

Top SSL Certificate Brands

Certum

Certified by the European Trust Mark (ETM), offering high credibility. Highly favored by SMEs and global e-commerce platforms.

Sectigo (PositiveSSL)

A globally leading Certificate Authority. PositiveSSL provides cost-effective security solutions backed by robust warranties.

GeoTrust

A highly reputable global brand helping organizations ensure secure connections across multi-platform websites and services.

RapidSSL

Supporting the latest encryption algorithms, it provides fast issuance and low-cost basic SSL certificates for startups.

TWCA

Taiwan's leading official Certificate Authority, highly trusted by the local financial and government sectors for organizational validation.

SSL Certificate FAQ

Q1: What is a Wildcard SSL Certificate?

A Wildcard SSL Certificate secures your primary domain (e.g., yourdomain.com) and an unlimited number of its subdomains (e.g., shop.yourdomain.com, mail.yourdomain.com) with just a single certificate. It is the most cost-effective solution for growing businesses with multiple sub-sites.

Q2: Is a Free SSL just as good as a Paid Wildcard SSL?

For wildcards, paid is much better. While Free SSLs (like Let's Encrypt) offer wildcard options, they enforce strict DNS-01 challenges that are difficult to automate and expire every 90 days. A Paid Wildcard SSL offers simple email/DNS validation, lasts up to 200 days, and includes high commercial warranties.

Q3: How to order and install an SSL certificate?

Purchasing and installing an SSL through Yuan Jhen is a streamlined process:
1. Purchase the plan.
2. Generate a CSR (Certificate Signing Request).
3. Fill in Admin Contact Info.
4. Verify domain ownership.
5. The CA will issue the CRT.
6. Install the files on your server.
View Installation Guide

Q4: How do I generate a CSR for a Wildcard SSL?

You can easily generate a CSR via your hosting control panel (e.g., cPanel). CRITICAL: When entering your domain name (Common Name), you MUST use an asterisk before your domain (e.g., *.yourdomain.com) so the certificate applies to all subdomains.
View CSR Tutorial

Q5: How can I force an automatic HTTPS redirect?

After installing your SSL, you must enforce an HTTPS redirect. By adding a 301 redirect rule to your server (e.g., editing the .htaccess file), all traffic will be automatically routed to the secure HTTPS connection without needing manual URL updates.
View Redirect Tutorial

Q6: How to fix the 'Not Secure' or Mixed Content warning?

If your SSL is active but the browser still shows a warning, you likely have 'Mixed Content'. This means your secure HTTPS page is loading insecure HTTP resources (like images or CSS). You must update all internal links to use 'https://' to restore the secure padlock icon.
Fix 'Not Secure' Warning

Explore Other SSL Solutions

Looking for advanced protection? Discover our other SSL certificates tailored to fit your growing business needs:

Domain Validation (DV) SSL

The most affordable and accessible solution for securing a single domain. Perfect for personal sites, portfolios, and blogs.

Learn More

Organization Validation (OV) SSL

Designed for registered businesses. Displays your authenticated company details on the certificate to prevent phishing.

Learn More

Extended Validation (EV) SSL

The gold standard in web security. Visitors are assured maximum transaction safety through rigorous third-party identity checks.

Learn More