DNS History Examples

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.