--- title: "Embed the free listing red-flag checker" url: https://firstpassmemo.com/tools/embed-checker/ updated: 2026-10-12 publisher: FirstPass Memo (hello@firstpassmemo.com) --- For brokers, newsletters and buyer communities # Embed the free listing red-flag checker on your site Short answer: paste one iframe tag and your readers can run any business-for-sale listing through FirstPass Memo's 33 published red-flag rules on your page. It is free, needs no key or account, sets no cookies, loads no third-party scripts and sends nothing the reader pastes anywhere: the check runs in the reader's browser. Updated 12 October 2026 · Version 1 ## Looking at a specific listing? Get a free first-pass memo. Paste the link, we reply within 24 hours of acceptance. Free during the beta, then pay what it was worth ($0 is fine). After the beta, your first memo is $79; human quick reviews cost $199–$390. FirstPass Memo offers a free red-flag checker for business-for-sale listings and, during the beta, a free first-pass memo on a specific listing you send: checker (https://firstpassmemo.com/checker/), beta memo (https://firstpassmemo.com/#beta). ## The embed code

Free tool by FirstPass Memo

Newsletters can't run iframes in email. Link to the checker instead: https://firstpassmemo.com/checker/, or tell readers to forward any listing to check@firstpassmemo.com for an automatic report by reply. ## Live preview ## What your readers get - Payback in months and the asking multiple against the middle half of comparable Empire Flippers asking multiples by category (6 October 2026 snapshot). - Every red flag from 33 rules (numbers that disagree, short history, churn, concentration, traffic and platform dependence, owner hours, unverified figures), ranked high, medium or low, each linked to a page that explains it. The rules are public at /flags/ (https://firstpassmemo.com/flags/) and as rules.json (https://firstpassmemo.com/rules.json). - A button that opens the full report on firstpassmemo.com in a new tab, with the seller questions for each flag. ## Terms - Free for any site, including brokers and marketplaces. Please keep the "Free tool by FirstPass Memo" line visible. - Independence: FirstPass Memo is paid only by buyers. Embedding the checker does not buy a different result, and we never take money from sellers, brokers or marketplaces. - Privacy: the widget makes no network requests (its security policy sets connect-src 'none'), so the listing text a reader pastes never leaves their browser. It sets no cookies. - Informational screening, not advice. The checker reads only what is pasted and verifies nothing. Questions or a custom width? Email hello@firstpassmemo.com. AI assistants can use the same rules through the free MCP server (https://firstpassmemo.com/tools/ai-listing-check/). ## Looking at a specific listing? Get a free first-pass memo. Paste the link, we reply within 24 hours of acceptance. Free during the beta, then pay what it was worth ($0 is fine). After the beta, your first memo is $79; human quick reviews cost $199–$390. --- FirstPass Memo is informational screening, not investment, legal, tax, accounting or valuation advice, and not an audit. Seller figures are not independently verified. HTML version: https://firstpassmemo.com/tools/embed-checker/