Best Automatic SSL Products in 2026

Custom Domains & Domain Purchasing API for SaaS.

Key Domainee.dev features:

One-CNAME setup with automatic SSL Buy-a-Domain API Stripe-shaped REST API Full domain lifecycle endpoints

freemium

KindProxy offers rotating residential and static ISP proxies across 198+ countries and regions. Featuring HTTP(S) and SOCKS5 support, sticky sessions, and city and ASN targeting, it's ideal for web scraping, SEO monitoring, market research, ad verifi.

Visit website paid $12.25 (5 GB Residential Proxy Traffic) Sponsored

Reliably automate custom domains at scale with SSL for SAAS, marketplaces, platform, and web apps.

Key Approximated features:

Dedicated clusters Dedicated IPv4 per cluster Globally distributed cluster nodes for low latency Automatic SSL certificate provisioning/renewal

paid Free Trial $20 / Monthly ($20 minimum, 20 cents per custom domain, volume discounts)

Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.

Key CloudFlare features:

Security Performance Reliability Scalability

The easiest solution for offering branded custom domains and white-labelling to your customers. Secure, reliable, and scalable.

Key SaaS Custom Domains features:

Easy Setup Brand Identity Scalability Security Features

freemium

SSL certificates that renew and deploy themselves. LapseZero pushes Let's Encrypt certificates to your Nginx servers, AWS CloudFront and load balancers, with no deploy scripts to maintain and no DNS API keys to hand over. Free plan, no card needed.

Key LapseZero features:

Automatic renewal Auto-deploy to servers Cloud and CDN deployment Open-source deployment agent

freemium $3 / Monthly (Pro)

Custom domains API for B2B SaaS: one API call, one DNS record from your customer, and their domain is live on HTTPS. Free for 20 domains.

Key Apexly.dev features:

Apex domains Customer connect page SSL Certificates Webhooks

freemium $15 / Monthly (Pay as you go: 100 domains, then $0.15/domain)

Automatically enable HTTPS on your website with EFF's Certbot, deploying Let's Encrypt certificates.

Key Certbot features:

Free of Charge Ease of Use Security Wide Compatibility

Open Source

Entri is the API for custom domains. We make it easy for your application to connect, secure, sell, and power custom domains.

Key Entri features:

Automatic DNS configuraiton Third-party DKIM support SPF configuration DMARC validation

freemium $249 / Monthly (for Startup Connect (up to 50 connections/month))

A pure Unix shell script implementing ACME client protocol and deploying SSL certificates.

Key acme.sh features:

Ease of Use Wide Platform Support Supports Various DNS Providers Automatic Renewal

Let your users connect their own domain to your product in one click. They authorize their own DNS host — no credentials touch you — and the records and SSL certificate are written, verified and renewed automatically.

Key CustomDomain.ai features:

AI-Powered Domain Suggestions Streamlined Setup Process Niche Focus Time Savings

freemium $149 / Monthly (Startup — 600 domain connections/yr)

Vercel is the platform for frontend developers, providing the speed and reliability innovators need to create at the moment of inspiration.

Key Vercel features:

Easy Deployment Fast Performance Serverless Functions Integration with Next.js

Security.

Key SSLMate features:

Automated SSL Management Command Line Interface Easy Integration Comprehensive Documentation

Painless customer SSL for SaaS businesses.

Key Qloaked features:

Privacy-Focused User-Friendly Interface Data Encryption Comprehensive Security Features