> ## Documentation index
> Fetch the complete documentation index at: https://arize.com/llms.txt
> Ask it with GET https://arize.com/ask?q=<keywords or question>. Short keywords rank best.
> Use these to discover all available pages before exploring further.

# Advanced

<Columns cols={2}>
<Card title="Mask Span Attributes" href="/docs/phoenix/tracing/how-to-tracing/advanced/masking-span-attributes" icon="eye-slash" horizontal>
Learn how to block PII from logging to Phoenix
</Card>
<Card title="Suppress Tracing" href="/docs/phoenix/tracing/how-to-tracing/advanced/suppress-tracing" icon="ban" horizontal>
Learn how to selectively block or turn off tracing
</Card>
<Card title="Filter Spans to Export" href="/docs/phoenix/tracing/how-to-tracing/advanced/modifying-spans" icon="filter" horizontal>
Learn how to send only certain spans to Phoenix
</Card>
<Card title="Capture Multimodal Traces" href="/docs/phoenix/tracing/how-to-tracing/advanced/multimodal-tracing" icon="images" horizontal>
Learn how to trace images
</Card>
<Card title="Construct Shareable URLs" href="/docs/phoenix/tracing/how-to-tracing/advanced/constructing-urls" icon="link" horizontal>
Link to projects, traces, spans, and sessions by name or ID
</Card>

</Columns>