HTTPS Connection error for "https://changedetection.io/CHANGELOG.txt"

After installing changedetection on my NAS with the default docker-compose.yaml I get for the default configured URL https://changedetection.io/CHANGELOG.txt the following error:

(https://changedetection.io/CHANGELOG.txt
HTTPSConnectionPool(host='changedetection.io', port=443): Max retries exceeded with url: /CHANGELOG.txt (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f376cd612e0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED')))[](https://changedetection.io/CHANGELOG.txt)https://changedetection.io/CHANGELOG.txt
HTTPSConnectionPool(host='changedetection.io', port=443): Max retries exceeded with url: /CHANGELOG.txt (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f376cd612e0>: Failed to establish a new connection: [Errno 111] ECONNREFUSED'))

And only for that one - the others are working ok. See Screensshot below.

Tried the same in parallel on my VPS - same behaviour. Also different other HTTPS URL are working fine.

Version v0.39.9

Screenshots

[adb76]

So I’ve found the root cause / solution:

In your default docker-compose.yaml you set

services:
    changedetection.io:

Now when you ping from docker to changedetection.io it is not addressing your domain but the service! Therefore it will never reach your server!

Changing to

services:
    changedetection:
      image: ghcr.io/dgtlmoon/changedetection
      container_name: changedetection
      hostname: changedetection

solves this issue.

So my proposal also to change that in your default docker-compose file.

[dgtlmoon]

This may affect the new “a new version is available” check too