Delayed webhooked calls now [fixed!]

Help and Support
1

Hi!

All webhook calls are delayed about 6 minutes now.

Does it happen for everyone?

I’m running Distill Web Monitor app. Tried restart a few times.

edit: It seems to getting better. About 1 minutes delayed now.

edit: back to normal now

2

@Edvision Thanks for reporting this — and glad to hear it’s back to normal now.

To help us understand what may have happened, could you let us know:

  • Which webhook endpoint/service you’re using?

  • Are these webhooks triggered from Cloud monitors or Local monitors?

  • Roughly what time (and timezone) you noticed the delay?

3

Webhook call to my own site ( edvision dot se ).

Local monitors with live monitoring.

From around 07.00PM/19.00 to 20.00 CET(GMT+1)

I have used your service for several years and have never had such long delays.

4

@Edvision Thanks for sharing the details and the timeframe — that helped narrow it down.

When we checked our backend logs, we could see that webhook attempts during that period were failing with the following error:

Hostname/IP does not match certificate's altnames: Host: www.edvision.se is not in the cert's altnames: DNS:edvision.se

Because the webhook request was failing due to the SSL certificate hostname mismatch, the system retried the request after a delay. The pause between retries is what caused the webhook calls to appear delayed.

Once the endpoint started responding successfully again, the webhook delivery returned to normal timing — which matches what you observed.

You may want to verify that the certificate presented by the endpoint includes the correct hostname.

5

Thanks for looking into it. I will check my ssl certificate settings.