SPF & DMARC Record Validator
Inspect SPF and DMARC email authentication records, check RFC 7208 10-DNS-lookup limits, syntax mechanisms, and policy enforcement.
How to Use SPF & DMARC Record Validator
Prevent email spoofing and guarantee inbox delivery. Validate your domain's SPF record against the strict RFC 7208 10-DNS-lookup limit, identify missing mechanisms, and verify DMARC policy enforcement (p=reject, p=quarantine, rua reporting).
Paste SPF or DMARC record
Input your raw TXT record string (e.g. v=spf1 include:... ~all).
Inspect validation analysis
Review mechanism syntax, lookup counts, and policy strength.
Fix configuration
Apply suggested fixes to prevent email bouncing or spam flagging.
Technical Specifications & Compatibility
Verified processing capabilities, memory limits, and format standards for SPF & DMARC Record Validator.
| Supported Input Formats | TXT |
|---|---|
| Execution Environment | 100% Client-Side In-Browser (WebAssembly / JavaScript / Canvas) |
| Privacy & File Retention | Zero server uploads · No data storage · Immediate memory wipe on tab close |
| Maximum File Limit | Up to 250 MB (dependent on available local device memory) |
| Processing Speed | Instantaneous local execution with zero upload or download latency |
| Platform Compatibility | Fully functional across Google Chrome, Apple Safari, Microsoft Edge, Mozilla Firefox, Android & iOS |
Practical Use Cases & Applications
Common real-world scenarios where SPF & DMARC Record Validator solves everyday file and workflow challenges.
Software Development & API Testing
Format, test, and encode keys, tokens, regex patterns, and JSON payloads locally without transmitting private credentials over the web.
Data Integrity & Identification
Generate cryptographic hashes and UUIDs to verify data authenticity and validate package integrity completely offline.
Responsive Web & Mobile Utilities
Convert number bases, generate scannable QR codes for Wi-Fi or URLs, and calculate IP network subnets with zero lag.
Key Features & Capabilities
100% In-Browser Privacy Guarantee
Unlike cloud converters that upload your documents to remote servers, GodOfTools processes SPF & DMARC Record Validator completely inside your local browser memory. No data is stored, tracked, or transmitted.
Frequently Asked Questions
Everything you need to know about using SPF & DMARC Record Validator securely and effectively.
Why does the SPF 10-lookup limit matter?
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