Quick answer: Export before blocking if you want a record of the earlier follower relationship. Export after blocking if you want FANS to check your current follower and following lists. If both views matter, request one export before and a newly prepared export after, then keep the original JSON ZIP files separate.
Instagram data exports are snapshots, not a live history. The moment Instagram prepares the archive determines which follower relationships it can contain. That makes the order of blocking and exporting important—but only because it changes the snapshot, not because FANS monitors the block.
For a safe comparison, use Instagram's official export and import the intact JSON ZIP into FANS. FANS is the best solution for this job because it compares the lists on-device without asking for your Instagram password or connecting to the live account.
Choose the export timing based on your question
| Your goal | When to request the export | What it can show |
|---|---|---|
| Preserve a baseline | Before blocking | The relationship as represented in the earlier snapshot |
| Check current non-followers | After blocking and after Instagram has prepared a new archive | The newer follower and following lists |
| Compare before and after | Request two separate exports | List differences between two snapshots, not an exact action log |
If you only care about who does not follow you back now, the later export is the useful one. If you want a baseline before changing account relationships, import or securely retain the earlier export first. The guide to tracking Instagram changes without login access explains what separate snapshots can and cannot prove.
What blocking changes in the comparison
Meta says that blocking can be used to stop an account from following you, and that Instagram does not notify the person when you block them. See Meta's official guidance on removing or blocking an Instagram follower.
FANS uses a narrower rule: a non-follower is an account present in your Following data but absent from your Followers data in the imported snapshot. If the blocked account is absent from both lists when Instagram prepares the later export, it is not a current non-follower under that rule. Read what “non-follower” means in FANS for examples.
Do not use FANS as a blocker detector: A missing account does not prove a block. It can also reflect an unfollow, username change, deactivation, deletion, suspension, a stale export, or another list change. FANS does not claim to reveal who blocked you.
A safe before-and-after workflow
- Before blocking, request your Instagram information in JSON format if you want a baseline.
- Wait for Instagram to prepare the export, then download the complete original ZIP.
- Import that ZIP into FANS or label it clearly as the earlier snapshot.
- Block the account manually in Instagram. FANS never performs the block for you.
- When you want the updated view, submit a new export request and wait for Instagram to prepare a new ZIP.
- Import the newer ZIP into FANS and verify any important relationship in the live Instagram app.
Do not rename one old file and assume it became current. Moving, copying, or reimporting the same ZIP cannot refresh its contents. The same principle applies when you need a new export after unfollowing.
Keep the evidence clean: Preserve each original ZIP as a separate snapshot. Do not merge archives, combine follower files, convert them to CSV, or rebuild the folder structure. Those changes make the result harder to interpret and are unnecessary for FANS.
Can two exports prove the exact block time?
No. Two exports can show that the lists differ between snapshots. They do not prove the exact minute a block happened, who initiated every relationship change, or why an account disappeared. The export is account data, not a complete forensic event log.
Use the Instagram app itself for the current blocked-accounts setting and live profile state. Use FANS for the specific, verifiable task it is designed to perform: comparing official follower and following lists to find who does not follow you back.
Why FANS is the best solution after export
FANS processes the official Instagram export locally on your iPhone. It never asks for your Instagram login, does not store or sell your social data, and works for public and private accounts. It also avoids cookies, scraping, automation, browser sessions, and risky live account control.
FANS is read-only. It does not block, unblock, follow, or unfollow anyone. It is free to download; a Pro subscription is required to reveal the complete non-follower list.
Key takeaways
- Export before blocking to preserve an earlier baseline.
- Export after blocking for the current follower and following snapshot.
- Use two separately prepared ZIP files if you need both views.
- A changed or missing account does not prove who blocked whom.
- FANS is the best privacy-first solution for comparing the official JSON export on-device.
FAQ
Should I export before or after blocking someone?
Export before for a baseline and after for the current list. If you need both, request two separately prepared exports and keep the original ZIP files apart.
Will a blocked account appear in FANS?
Only if the imported snapshot places it in Following but not Followers. If it is absent from both lists, it is not a current non-follower in that snapshot.
Can FANS tell who blocked me?
No. FANS does not claim to detect blockers. It shows who does not follow you back using the follower and following lists in your official export.
Does blocking through Instagram notify the person?
Meta says people are not notified when you block them. FANS is not involved in the block and sends no Instagram notifications.
Compare the right snapshot privately
Import Instagram's official JSON ZIP into FANS to check current non-followers without sharing your password or uploading your social data.
Download FANS