Glossary
The vocabulary of form backends, defined plainly, with how each concept shows up in SheetLink Forms.
1 AJAX submit An AJAX submit sends form data with JavaScript instead of a page navigation - inline succe... term 2 Cloudflare Turnstile Cloudflare Turnstile is a CAPTCHA alternative that verifies visitors with background brows... term 3 CORS CORS is the browser mechanism that controls which websites may send JavaScript requests to... term 4 Delivery log A delivery log records every delivery attempt for each form submission - state, timestamps... term 5 Disposable email A disposable email address is a throwaway inbox that expires in minutes. Why it correlates... term 6 drive.file scope drive.file is the narrow Google OAuth scope that limits an app to files you picked or it c... term 7 fbclid fbclid is the click identifier Meta appends to landing page URLs from Facebook and Instagr... term 8 Form action The form action is the HTML attribute that tells the browser where to send a form's data o... term 9 Form backend A form backend is a hosted service that receives your form submissions for you - no server... term 10 Form endpoint A form endpoint is the URL a form submits its data to. What endpoints accept, how they res... term 11 Form spam Form spam is unwanted automated submissions to web forms - link stuffing, fake signups, ju... term 12 Formula injection Formula injection hides executable formulas in form input so they run when the spreadsheet... term 13 gclid gclid is the Google Click Identifier - a unique ID Google Ads appends to landing page URLs... term 14 Honeypot A honeypot is a hidden form field that humans never see but spam bots fill in - a zero-fri... term 15 Lead attribution Lead attribution ties each lead to the campaign and click that produced it, from UTM tags ... term 16 msclkid msclkid is the Microsoft Advertising click ID appended to landing page URLs - Bing's count... term 17 OAuth refresh token An OAuth refresh token is the long-lived credential an app redeems for fresh access tokens... term 18 Offline conversion An offline conversion is a sale that completes away from your website - a call, a signed d... term 19 Origin allowlist An origin allowlist names the websites allowed to call an endpoint from the browser, enfor... term 20 Preflight request A preflight is the OPTIONS request a browser sends before certain cross-origin calls, aski... term 21 Quarantine (form spam) Quarantine holds suspicious form submissions for human review instead of deleting them - s... term 22 Rate limiting Rate limiting caps how many requests a client may send in a time window, answering the exc... term 23 Retry with backoff Retry with backoff re-attempts a failed operation at increasing intervals, absorbing outag... term 24 Spam heuristics Spam heuristics judge a form submission by its content - link stuffing, throwaway domains,... term 25 Thank-you page A thank-you page is where a visitor lands after a successful form submit - confirmation, e... term 26 Timing trap A timing trap flags form submissions that arrive faster than a human could have filled the... term 27 urlencoded vs multipart urlencoded and multipart are the two ways HTML forms encode a POST body - compact pairs ve... term 28 UTM parameters UTM parameters are the five standard URL tags - source, medium, campaign, term, content - ... term 29 wbraid and gbraid wbraid and gbraid are Google's privacy-preserving replacements for gclid on iOS ad clicks.... term 30 Webhook A webhook is an HTTP callback: one system POSTs data to a URL you give it whenever an even... term