Webflow Custom Domain or SSL Error

How to fix it

Try these in order — the most common fix is first.

1. 1. Match DNS records to the dashboard

   Copy steps
   1. Open Site settings > Publishing (Hosting) and read the records Webflow shows for your domain
   2. In your DNS provider, make the root A record and the www CNAME match exactly
   3. Delete old A, AAAA or CNAME records pointing elsewhere
   Did this fix it? Yes No

2. 2. Pause the Cloudflare proxy

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   1. In Cloudflare DNS, set the Webflow records to 'DNS only' (grey cloud)
   2. Wait for Webflow to show the domain as connected and SSL as active
   3. Turn the proxy back on only if you need it, using Full SSL mode
   Did this fix it? Yes No

3. 3. Republish to regenerate the certificate

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   1. Open Site settings > Publishing
   2. Click Publish to all domains
   3. Wait a few minutes and reload in a private window
   Did this fix it? Yes No

4. 4. Wait for propagation and check status

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   1. Allow 15-30 minutes, longer for some DNS hosts
   2. Use a DNS lookup tool to confirm your records
   3. Check status.webflow.com for SSL validation incidents
   Did this fix it? Yes No

5. 5. Contact support with specifics

   Copy steps
   1. Send the exact error text, domain and DNS records
   2. Include whether a proxy or CDN sits in front of the site
   Did this fix it? Yes No

Symptoms

Your custom domain shows 'This site can't provide a secure connection', ERR_SSL_PROTOCOL_ERROR, SSL_ERROR_INTERNAL_ERROR_ALERT, NXDOMAIN or Cloudflare error 525.

Why it happens

• DNS A or CNAME records missing or different from the ones shown in Hosting settings
• DNS changes not propagated yet (can take 15-30 minutes or longer)
• Cloudflare proxy (orange cloud) blocks Let's Encrypt validation, causing 525
• Old conflicting records for the same domain, e.g. leftover AAAA or A records
• SSL certificate not issued because the site was not republished
• Temporary Webflow incidents delaying SSL validation

This guide also covers

• webflow custom domain not working
• webflow ssl error
• webflow error 525
• webflow ERR_SSL_PROTOCOL_ERROR

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