# DNS History Examples

Worked DNS History examples: every record type of a domain, one type at a time, a host name, and a large site with many addresses over time.

Source: https://docs.deepinfo.com/reference/lookup/dns-history/examples/

Last updated: 2026-09-24

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`GET https://api.deepinfo.com/v1/analyze/dns-history` · endpoint: [DNS History](/reference/lookup/dns-history/)

Worked examples for DNS History (passive DNS): the records Deepinfo has observed for a domain or host name over the years, including values that have since changed or been removed. First every type of one domain, then one `type` at a time, then a host name and a large site.

Every example is a real response from September 24, 2026. `records[]` has one entry per record type (in lower case); each value lists the times it was observed in `time`, newest first. The histories are long, so each page shows the first 10 values of a type and the 10 newest observations of each value; the note above the response says what was shortened. Where a description gives the first time a value was seen, that date comes from the full response, not from the shortened one on the page. The same value can appear in more than one entry of a type, each with its own `time` list, and their periods can overlap: in the MX and NS examples, a second, short entry of each current value holds two or three observations from late 2021 that fall inside the period of the long entry.

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

| Example | Param | Value |
|---|---|---|
| [Every Record Type of a Domain](/reference/lookup/dns-history/examples/all-types/) | `domain` | `deepinfo.com` |
| [A Record History of a Domain](/reference/lookup/dns-history/examples/type-a/) | `domain`<br>`type` | `deepinfo.com`<br>`A` |
| [Name Server History: HostGator to Cloudflare](/reference/lookup/dns-history/examples/type-ns/) | `domain`<br>`type` | `deepinfo.com`<br>`NS` |
| [MX Record History](/reference/lookup/dns-history/examples/type-mx/) | `domain`<br>`type` | `deepinfo.com`<br>`MX` |
| [TXT Record History](/reference/lookup/dns-history/examples/type-txt/) | `domain`<br>`type` | `deepinfo.com`<br>`TXT` |
| [History of a Host Name](/reference/lookup/dns-history/examples/fqdn/) | `domain` | `www.deepinfo.com` |
| [Many Addresses Over Time](/reference/lookup/dns-history/examples/large-site-a/) | `domain`<br>`type` | `github.com`<br>`A` |