I set up a monitor script: https://github.com/DoctorLai/SteemWitnessAutoSwitch  to send an email notification to me [when a block is missed](https://helloacm.com/how-to-set-up-your-on-call-duty-when-your-steem-witness-is-missing-a-block/). Below is the email notifications for the recent missing blocks:

![image.png](https://cdn.steemitimages.com/DQmf6VuHbVKxasug1tDRRDF6EBxrtgJZfbmjLFkSKPaQWSu/image.png)

As you can see, on average, a block is missed every few days. Sometimes more frequently and some times less frequent. A block may be missed due to network latencies, or simply caused by your clocktime not accurately up-to-date.

Especially for top witnesses, every minute or so, a block producing is scheduled/expected, so the ratio of missing a block is higher than backup witnesses.

Use [dedicated servers](https://anothervps.com/vps-database) is highly recommended as it might reduce the chance of missing a block.

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Every little helps! I hope this helps!


**Steem On!~**
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*[Computing & Technology](https://helloacm.com//)*

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