# Daily Discovered Subdomains Feed Examples

Worked Daily Discovered Subdomains examples: the download link of the current file as JSON, CSV and Parquet, with its size, line count and update time.

Source: https://docs.deepinfo.com/reference/feeds/daily-discovered-subdomains/examples/

Last updated: 2026-09-24

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`GET https://api.deepinfo.com/v1/feeds/daily-discovered-subdomains` · endpoint: [Daily Discovered Subdomains](/reference/feeds/daily-discovered-subdomains/)

Worked examples for the Daily Discovered Subdomains feed, the subdomains Deepinfo discovered in the last day: one request per file format. The API does not return the data itself but a link to download the current file, with its size (`file_size`, in bytes), its number of lines (`line_count`) and when it was last updated (`file_update_time`).

Every example is a real response from September 24, 2026. `download_url` is a signed link that is valid for one hour (`X-Amz-Expires=3600`); its credential and signature are shown as `<redacted>` on this page. Request the link again when you need the file; the file is compressed (`.json.gz`, `.csv.gz` or `.zstd.parquet`).

The Parquet file is requested with `file_format=parquet`: the API accepts it and the [Feed List](/reference/feeds/list/) names it for every feed, next to CSV and JSON. The reference of `file_format` lists only `csv` and `json`; these examples show that `parquet` works as well.

Each example links to its own page with the request and the response.

| Example | Param | Value |
|---|---|---|
| [Daily Discovered Subdomains as JSON](/reference/feeds/daily-discovered-subdomains/examples/json/) | `file_format` | `json` |
| [Daily Discovered Subdomains as CSV](/reference/feeds/daily-discovered-subdomains/examples/csv/) | `file_format` | `csv` |
| [Daily Discovered Subdomains as Parquet](/reference/feeds/daily-discovered-subdomains/examples/parquet/) | `file_format` | `parquet` |