🧪 Free tool · runs in your browser

Would this comment get hidden?

Paste a comment from your Page or ad. This runs the same filter engine CommentDefender uses on live comments, and shows which rule would catch it and what the rule actually read.

Checked on this page — nothing you type is sent anywhere.

Try a real one

Starter keyword lists

Five lists worth starting from

Phrases, not single words — a lone word like “free” also hides “carefree”. Every list is tested against the comments it must hide and the near-misses it must leave alone, and you are welcome to copy them into any tool, Facebook’s own blocklist included.

Contact bait

Invitations to move your customer into a private chat, written without the email or phone number the contact filter would catch.

  • dm me
  • inbox me
  • whatsapp me
  • sent you a dm
  • check your inbox
  • message me on telegram

“Hey dear, DM me for a better price 😊”

Leaves up “Can you DM the size chart? Thanks”

Comments that point your audience at another profile without pasting a link the URL filter could see.

  • link in my bio
  • check my profile
  • click my profile
  • visit my page
  • see my story

“Same dress for half the price, link in my bio”

Leaves up “Is the link in your bio still working?”

Crypto & investment scams

Get-rich testimonials and "account manager" pitches, including the recovery scams that follow them.

  • bitcoin investment
  • passive income
  • forex trading
  • daily profit
  • crypto expert
  • recover your funds

“I earn daily profit with Bitcoin investment, ask me how”

Leaves up “Do you accept Bitcoin as payment?”

Fake giveaways

Prize notices from accounts that are not you, usually posted under your real giveaway to harvest the entrants.

  • you have been selected
  • claim your prize
  • claim your reward
  • congratulations you won
  • free iphone

“Congratulations!! You won our anniversary giveaway 🎉”

Leaves up “When is the winner of the giveaway announced?”

Fake platform support

Accounts posing as platform support: disabled-page threats, copyright notices and appeal forms that lead to a login page.

  • your page will be disabled
  • copyright violation
  • verify your page
  • page has been restricted
  • official support team
  • appeal form

“Your page will be disabled within 24 hours unless you verify your page”

Leaves up “How do I verify my order?”

Under the hood

How the tester reads a disguised comment

“fr33 crypt0” — digits for letters, read as “free crypto”.
“c h e c k my profile” — letters pulled apart. Phrases of four letters or more are also compared with the spaces taken out.
“cheapdeals (dot) shop” — a link with the dot spelled out, still caught as a link.
“spáaaam” — accents and stretched letters, folded back to “spam”.

Facebook’s own blocked-words list also catches common variations of the words you add. What neither catches is meaning: a scam written in fresh words gets past any list, ours included — that is the job of the AI filters, which are switched off for now and marked Coming soon. The starter lists are English.

Run these rules on every new comment

The tester checks one comment you paste. CommentDefender checks every new comment on your Pages, posts and ads, and hides the matches within seconds. 14 days free, no card.

Start your free trial

Free for 14 days · No credit card required

See every filter on Facebook comment moderation and Instagram comment moderation, or check pricing.