> For the complete documentation index, see [llms.txt](https://docs.halosecurity.com/api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.halosecurity.com/api/readme/scan-selection.md).

# Scan Selection

By default, the current scan for the identified target will be used.

To return records from a specific scan, provide a timestamp via the `asof` query parameter or the `x-ts-asof` HTTP header.

* The last scan prior to the provided value will be used
* The timestamp must be provided in the format of `YYYY-MM-DD HH24:MI` and in `UTC`.  (If no time is provided `24:00` will be assumed.)

A single scan can also be selected using the `scan_id` query parameter or the `x-ts-scan_id` HTTP header.

## Supported endpoints

The following methods support the use of the `asof` parameter or `x-ts-asof` header to query records:

<table><thead><tr><th>Endpoint</th><th>Method</th><th data-hidden></th></tr></thead><tbody><tr><td><a href="/pages/FovrjoxIRi8GgTZL50U0">Issue</a></td><td><a href="/pages/FovrjoxIRi8GgTZL50U0#get-a-list-of-issues.">list</a></td><td></td></tr><tr><td><a href="/pages/FovrjoxIRi8GgTZL50U0">Issue</a></td><td><a href="/pages/FovrjoxIRi8GgTZL50U0#get-a-summary-of-issues.">summary</a></td><td></td></tr><tr><td><a href="/pages/sOo58RdJczwpo1oxFJj3">Port</a></td><td><a href="/pages/sOo58RdJczwpo1oxFJj3#get-a-list-of-ports.">list</a></td><td></td></tr><tr><td><a href="/pages/IOIP0bfsUjE7XEBbBouE">DNS</a></td><td><a href="/pages/IOIP0bfsUjE7XEBbBouE#get-a-list-of-dns-records">list</a></td><td></td></tr><tr><td><a href="/pages/JrkoGVAqPmWotVqmzQsh">HTTP</a></td><td><a href="/pages/JrkoGVAqPmWotVqmzQsh#get-a-list-of-http-records">list</a></td><td></td></tr><tr><td><a href="/pages/MiKItKCliGwbhrhO7A9y">Whois</a></td><td><a href="/pages/MiKItKCliGwbhrhO7A9y#get-a-list-of-whois-records">list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-the-list-of-cookies.">cookie-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-the-list-of-scripts.">script-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-the-list-of-headers.">header-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-the-list-of-forms.">form-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-the-list-of-certs.">cert-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-a-list-of-downloads.">download-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-a-list-of-metadata.">meta-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-a-list-of-links.">link-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-list-of-pages.">sitemap-list</a></td><td></td></tr><tr><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk">Website</a></td><td><a href="/pages/LmE2wc4iJDy6GfIrj9kk#get-list-of-hostnames-detected-by-traffic.">traffic-list</a></td><td></td></tr></tbody></table>