Intermittent SSL protocol errors

“Browser shows "This site can't provide a secure connection" / ERR_SSL_PROTOCOL_ERROR.”

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/vercel/issues/10535/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

Quiet. No reports in the last two weeks, down from 2 a week at the early-August peak.

Intermittent ERR_SSL_PROTOCOL_ERROR on custom domains with valid config. Browser shows "This site can't provide a secure connection" on random pages while the Domains tab shows "Valid Configuration".

Is this your bug?

File my report

Where: Custom domains
Error text: ERR_SSL_PROTOCOL_ERROR
Platforms: Web, Windows
How bad: Stops work: a core feature can't be used.

Not quite your bug?

Custom domain TLS handshake fails6 people
Edge IP TLS handshake fails2 people
Custom domain TLS reset at edge3 people

Original reports3, newest first

Aug 14, 2026Intermittent SSL handshake failures on production domain (www.policygym.co)#47754
Aug 7, 2026ERR_SSL_PROTOCOL_ERROR: Chrome/Edge fail, Firefox fine. TLS renegotiation#47383
Aug 2, 2026Intermittent ERR_SSL_PROTOCOL_ERROR on custom domain — random pages, no pattern#47036

Intermittent SSL protocol errors

Is this your bug? What gets counted gets fixed. Pile on.

Is this your bug?

Not quite your bug?

Original reports3, newest first

Do you work on Vercel?