# Monitoring and billing

Read receiver delivery reports in the console, review delivery periods and billed IP-days, and keep prepaid credit available for the stream.

Source: https://docs.zerocopy.sh/shredstream/monitoring-and-billing

Open **Shredstream** for your team in the [console](https://console.zerocopy.sh).
Delivery figures are measured by ZeroCopy. They do not confirm reception by
your application; monitor your receiver's socket and processing as well.

## Receivers panel [#receivers-panel]

The **Receivers** panel shows:

| Column | Meaning |
| --- | --- |
| UDP destination | Receiver IPv4 address and UDP port. |
| Metro | Metro from which ZeroCopy sends to the receiver. |
| State | Whether the receiver is active, paused or blocked by its prepaid balance. |
| Packets/s | Packet rate measured by ZeroCopy. |
| Mb/s | Traffic rate measured by ZeroCopy. |
| Delivery errors/s | Packets that could not be delivered to the receiver. |
| Last report | Time of the latest delivery report, or **Not reporting** when no report is available. |
| Packets/s, 1 h | Packet-rate history over the last hour. |

Rates cover a 2-minute window and refresh every 10 seconds. A reported sending rate is
not proof that every datagram reached your application.

Receiver states are:

| State | Meaning |
| --- | --- |
| `active` | Receiver is configured for delivery. |
| `paused` | ZeroCopy has paused delivery. |
| `blocked_balance` | Delivery is blocked because prepaid credit is exhausted. |

For missing traffic, check the [receiver setup](/shredstream/receivers#check-setup).
For a receiver change or pause, [contact support](mailto:support@zerocopy.sh).

## Delivery periods [#delivery-periods]

**Delivery periods** shows the last 30 days of delivery: receiver, metro, IP, start, end
and duration. IP-days are counted from the periods when delivery was on. Changing an
active receiver's address or metro starts a new period.

## Billed days [#billed-days]

**Billed days** shows the last 30 UTC days with the IP-day quantity, cost and billing
status. **Day not finished** identifies a UTC day still in progress. **Not reported yet**
means billing for that day has not yet been reported.

## IP-day billing [#ip-day-billing]

Shredstream is charged per receiver IP per metro, billed per IP-day from prepaid credit.
An IP-day counts a receiver IPv4 address in one metro with delivery on during a UTC day.
Additional ports on the same IP in the same metro cost nothing more. The same IP in
another metro is counted separately. See the [pricing page](https://zerocopy.sh/pricing)
for the current rate.

Billing starts from the day a receiver becomes active. The delivery and metering records
are the basis of charges, rather than the number of packets your application processes.

Delivery stops when prepaid credit is exhausted and resumes after a top-up. SWQoS sending
is unaffected and does not require prepaid credit. Usage already in progress can take
the balance below zero; that amount is deducted from the next credit purchase.
See [Terms 4.3](https://zerocopy.sh/terms#fees-3).