SSL Certificate Errors on Base44 Published App
Your published Base44 app shows SSL certificate warnings in the browser. Users see "Not Secure" in the address bar, a certificate error page they must click through, or mixed content warnings where some resources load over HTTP instead of HTTPS.
SSL issues erode user trust and can prevent some browsers from loading the app at all. Modern browsers increasingly block mixed content and show prominent warnings for certificate issues, making this a critical problem for any production app.
The issue may affect only your custom domain while the default Base44 URL works fine with SSL, or it may manifest as intermittent certificate errors that come and go.
Error Messages You Might See
Common Causes
- The SSL certificate for a custom domain has not been provisioned or has expired
- Mixed content: some images, scripts, or API calls use HTTP instead of HTTPS
- The app references hardcoded HTTP URLs in custom code or embedded content
- DNS changes disrupted the SSL certificate renewal process
How to Fix It
If using a custom domain, check whether the SSL certificate has been provisioned by visiting the domain and inspecting the certificate in your browser. If it hasn't been provisioned, re-verify your DNS settings and trigger a re-provisioning if Base44 offers that option.
For mixed content warnings, search your app's custom code and component settings for any http:// URLs and change them to https://. Embedded iframes, images, and external scripts are common culprits.
Persistent SSL issues, especially on custom domains, may require developer intervention to properly configure the certificate chain and ensure all resources are served securely.
Real developers can help you.
Pratik
SWE with 15+ years of experience building and maintaining web apps and extensive BE infrastructure
Basel Issmail
’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems.
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BurnHavoc
Been around fixing other peoples code for 20 years.
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.
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Hey I'm Sage! Im a Boston area software engineer who grew up in South Florida. Ive worked at a ton of cool places like a telehealth kidney care startup that took part in a billion dollar merger (Cricket health/Interwell health), a boutique design agency where I got to work on a ton of exciting startups including a photography education app, a collegiate Esports league and more (Philosophie), a data analytics as a service startup in Cambridge (MA) as well as at Phillips and MIT Lincoln Lab where I designed and developed novel network security visualizations and analytics. I've been writing code and furiously devoted to using computers to make people’s lives easier for about 17 years. My degree is in making computers make pretty lights and sounds. Outside of work I love hip hop, the Celtics, professional wrestling, magic the gathering, photography, drumming, and guitars (both making and playing them)
Mehdi Ben Haddou
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Jaime Orts-Caroff
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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.
Antriksh Narang
5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies.
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
Why does my Base44 app show 'Not Secure'?
This usually means the SSL certificate isn't properly configured or there's mixed content (some resources loading over HTTP). Check your custom domain SSL settings and search for any hardcoded HTTP URLs.
How do I fix mixed content warnings in Base44?
Find any images, scripts, or API calls that use http:// URLs and change them to https://. This includes embedded content, external scripts, and image URLs in your database.