Fix blog.exe.dev SSL/TLS connection issues on certain WiFi networks

Discord Message

👋 FWIW, I suspect I am seeing something similar to this report of the blog failing to load: https://news.ycombinator.com/item?id=46398038

When I'm on my home WiFi, https://blog.exe.dev/ fails to load with a "couldn't establish secure connection" error or similar on both my iPhone and Windows laptop. On the other hand, if I disconnect from WiFi on my phone and use the cellular network, the same URL loads fine.

1 Comment

josharianvia github Dec 28, 2025

Further discussion on Discord:

Poking at it with curl briefly, it appears to not be valid TLS data coming back in response when it fails:

<= Recv SSL data, 5 bytes (0x5)
0000: ff ff ff ff ff                                  .....
== Info: error:1408F10B:SSL routines:ssl3_get_record:wrong version number

Also, this fails:

curl -vs https://blog.exe.dev/

but this works (resolving to same 16.145.102.185 IP):

curl -vs https://exeblog.exe.xyz/

Speculation, but I wonder if my ISP is doing some hostname or SNI based filtering (e.g., maybe it is skeptical about the exe, or something).

FWIW, I had similar resets on Southwest WiFi on Thursday. I chalked it down to bad network, but it might have been filtering.

This may be some sort of intermittent bug in how we handle blog.exe.dev. It's a bit of a special case. I'll put it on the TODO list for when things calm down, thanks.