Written from real files

CheckMate Blog

What an Instagram data export can and cannot show you — checked against the operator\'s own ZIP, the parser source, and browser tests. Every measured claim comes from a single account and says so.

5 guides in English · Korean edition has the full set · CheckMate operator

Guides

MeasuredIs followers data really capped at 365 days? Checked against 8 years of real files

In the operator's own export, 469 of 543 follower records (86.4%) were older than one year. Year-by-year table and a three-line reproduction script.

MeasuredAll 10 export files dissected — where fbid exists and where it does not

Eight files use the new label_values format with a stable account ID; only followers and following do not. Why that makes username-change detection impossible from the file alone.

GuideHow to request your full-history Instagram data export as JSON

The exact menu path, which options to pick, why "all time" matters, and what to do when the download does not arrive.

GuideInside the ZIP — what each Instagram export file actually contains

Folder layout, the two JSON shapes, timestamps, and what the numbers can and cannot tell you.

ComparisonFour unfollower-check tools compared on nine criteria

Login requirement, where files are processed, storage, username-change handling — documented from public information, with our own tool included and its limits stated.

How these guides are written

Three sources only: Meta\'s public documentation, the operator\'s own export files, and what the open-source parser actually does. Anything not confirmed by those is labelled an estimate. Nothing is stored server-side, so there are no aggregate user statistics — and none are quoted.

Operator and principles: About. Data handling: Privacy. Result questions: FAQ.