Facebook Checker: bulk Facebook verification, API & CSV output guide

Facebook Checker answers whether a contact is registered on Facebook. Bulk signal for CRM and marketing ops.

Facebook Checker (facebook) is Cheker.pro bulk Facebook verification. This guide covers mass phone checks, facebook API, phone intelligence, list hygiene before SMS/messengers, and CSV export for CRM.

Badge HOT in catalog.

Who it is for

Facebook Checker is used by SMS hubs, performance marketing, crypto compliance, call centers and SaaS with Reseller API. If your pipeline segments «has Facebook / not» — this task type covers bulk at scale.

What Facebook Checker does

Facebook account detection and validation. Each input line becomes one CSV row with result fields.

Task type: facebook. Family: Facebook. Input type: phone.

Pricing and output on Facebook Checker landing. Run tasks in dashboard.

Input file format

Upload TXT or CSV: phone numbers in international format (E.164 recommended, e.g. +14155552671). One file = one country only (country code in every line: Brazil 55, US 1, Russia 7).

• Minimum: 100 lines per task
• Maximum: 10,000,000 lines (large files auto-split)
• E.164 recommended: +country code, no spaces or brackets
• See format preview in the upload form at Facebook Checker

Do not mix phone, email and username in one file. From Excel export a single column to CSV — avoid formulas and scientific notation.

Output fields

• Number
• facebook: yes/no

Interpret Number · facebook: yes/no with a clear rule: «yes» → Facebook channel candidate; «no» → SMS/email fallback or exclude from campaign.

Use cases

• Marketing runs a separate sequence for "Facebook: yes".
• Marketing runs a separate sequence for "Facebook: yes".
• Marketing runs a separate sequence for "Facebook: yes".

How to run a check

1. Sign up at Cheker.pro and top up USDT
2. Open Facebook Checker — TXT/CSV upload form
3. Wait for completion in «Мои задачи»
4. Download CSV into CRM / SMS hub / BI
5. Automation: Reseller API — facebook

Common mistakes

• Local format without country code → false «no» results.
• Mixed countries in one file → API rejection or wrong output.
• Confusing Facebook registration with «number is reachable» — different signals.
• Treating «no» as permanent block without re-check after 7–14 days.
• Bulk-check without legal basis (GDPR / local telecom rules) — validation does not replace consent.

Reading yes/no

"No" on Facebook may mean no account, privacy settings, or upstream lag. Do not auto-block on one field alone.

Related Facebook checkers

• Facebook Email Checker (facebook_email) — Facebook email account validation and detection

FAQ

How is Facebook Checker different from other Facebook checkers?

Task type facebook: Facebook account detection and validation. Output: Number · facebook: yes/no. Compare family variants in the checker catalog and facebook landing.

Minimum batch size and file format for facebook?

Minimum 100 lines. phone numbers in international format (E.164 recommended, e.g. +14155552671). One country per file. Format hints on the upload page.

How much does Facebook Checker cost?

Pay-as-you-go USDT: per-line billing at checker rate. Current price per 10k lines on the facebook card and dashboard after top-up.

API for Facebook Checker?

Yes. Reseller API: POST /api/v1/check with task type facebook. Keys: API keys, docs: /docs.

Is bulk checking legal?

Use only lists with opt-in or other lawful basis (GDPR, local rules). Cheker.pro acts as processor on your instructions; you define retention and consent policy.

Summary: Facebook Checker is the bulk layer for Facebook. Catalog: facebook · run → · Cheker.pro blog