Base44 deployment

Custom Domain Not Connecting to Base44 App

You've configured a custom domain for your Base44 app, but visiting the domain shows an error page, a default hosting page, or the connection times out entirely. The app continues to work on the default Base44 URL but not on your custom domain.

Custom domain configuration involves DNS settings that must be precisely correct, and errors in this process are common. The issue may be compounded by DNS propagation delays that make it hard to tell if your changes have taken effect.

Some users experience a partially working state: the domain loads but shows SSL certificate warnings, or it works without www but not with www (or vice versa).

Error Messages You Might See

DNS_PROBE_FINISHED_NXDOMAIN ERR_SSL_PROTOCOL_ERROR This site can't be reached SSL certificate problem: unable to get local issuer certificate
DNS_PROBE_FINISHED_NXDOMAINERR_SSL_PROTOCOL_ERRORThis site can't be reachedSSL certificate problem: unable to get local issuer certificate

Common Causes

  1. The CNAME or A record was not set correctly in the domain registrar's DNS settings
  2. DNS propagation has not completed yet (can take up to 48 hours)
  3. The custom domain was configured in Base44 but the DNS records point to the wrong target
  4. SSL certificate has not been provisioned yet for the custom domain
  5. The www and non-www versions are not both configured, causing one to fail

How to Fix It

Verify your DNS records using a tool like dnschecker.org to confirm the CNAME or A record is correctly set and has propagated. The target should match exactly what Base44's custom domain instructions specify.

If the DNS is correct but SSL shows a warning, the SSL certificate may still be provisioning. This can take up to an hour after DNS propagation completes.

For persistent custom domain issues, especially with subdomains, wildcard certificates, or complex DNS setups involving other services (like email on the same domain), a developer can help configure everything correctly.

Real developers can help you.

Jen Jacobsen Jen Jacobsen I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses. I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain. hanson1014 hanson1014 Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround. 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Omar Faruk Omar Faruk As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience. My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture. I played a key role in creating a scalable and maintainable platform to support educators and learners globally. I'm enthusiastic about embracing new challenges and making meaningful contributions. Jaime Orts-Caroff Jaime Orts-Caroff I'm a Senior Android developer, open to work in various fields Yovel Cohen Yovel Cohen I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well. zipking zipking I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify. As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value. Caio Rodrigues Caio Rodrigues I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures. I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations. Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization. I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems. My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.** Jacek Rozanski Jacek Rozanski Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004). Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month. What I bring to AI-built apps: - I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0 - I refactor AI-generated prototypes into production-grade applications with proper error handling, testing, and clean architecture (SOLID, DDD, hexagonal architecture) - I set up the infrastructure AI tools don't touch: AWS hosting, CI/CD pipelines, automated deployments, database optimization, monitoring, and alerting - I integrate external services: payment providers, email systems, partner APIs, SSO/auth Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code. Based in Poland (CET timezone). Available for async work and calls during EU/US business hours.

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Frequently Asked Questions

How long does it take for a custom domain to work with Base44?

DNS propagation can take up to 48 hours, and SSL certificate provisioning can take an additional hour after that. Wait at least 24 hours before troubleshooting further.

What DNS records do I need for a custom domain on Base44?

You typically need a CNAME record pointing to the Base44-provided target URL. Check the exact instructions in your Base44 app's domain settings for the correct target value.

Related Base44 Issues

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