10DLC Checker

Instantly analyze SMS messages for 10DLC compliance. Detect issues and ensure your messages meet carrier standards before sending.

Verify your SMS compliance before you send. 10DLC Checker helps you review business text messages against carrier compliance standards in seconds. Whether you're sending marketing campaigns, appointment reminders or verification codes, this extension identifies potential issues before your messages reach customers. How it works Paste any SMS message into the extension and get immediate feedback on compliance risks, missing requirements and carrier red flags. No need to navigate external dashboards or interrupt your workflow. What it does 10DLC Checker analyzes your text content in real time to highlight: • Missing STOP/HELP or opt-out language • High-risk phrases or spam triggers • Possible carrier violations and deliverability issues Key capabilities • Real-time compliance scanning — Analyze message content directly from any webpage or platform • Actionable recommendations — Get clear guidance on improving deliverability and avoiding filtering • Risk identification — Detect missing opt-out text, spam triggers and high-risk keywords • Universal compatibility — Works seamlessly across CRMs, marketing platforms and web applications • Privacy-focused design — Messages are analyzed locally with no storage or unnecessary data collection • Offline functionality — Core compliance checks run even without an internet connection • Clear visual indicators — Color-coded results show pass, warning or fail status at a glance Built for SMS marketing teams, compliance officers, developers, CRM administrators and anyone responsible for ensuring business messaging meets carrier standards. Why it matters U.S. carriers now require all business-to-consumer SMS traffic to comply with A2P 10DLC (10-Digit Long Code) regulations. Messages that don't meet these standards may be filtered, blocked or penalized, impacting your campaign reach and brand reputation. Three ways to use it ➤ Manual check — Paste or type your message directly into the extension popup and click Check to review it instantly. ➤ Right-click shortcut — Highlight text on any webpage, right-click, and select “Check with 10DLC Checker” for a quick scan. ➤ Context-aware preview — Automatically prefill message content from supported CRM tools or messaging fields when available. Version 1.0.4 Enhanced with improved status visualization, refined compliance recommendations and faster local analysis.