MissingLinkz
CLI ToolFreeCampaign link builder & pre-launch validator. Builds UTM links, validates destinations, checks OG tags, Twitter Cards, mobile readiness, and redirects. One preflight command does build + validate + inspect.
Capabilities6 decomposed
utm parameter builder with campaign link generation
Medium confidenceConstructs properly-formatted UTM links by accepting campaign parameters (source, medium, campaign, content, term) and appending them as query strings to base URLs. Validates parameter syntax and ensures URL encoding compliance, supporting both simple single-link generation and batch operations for multi-channel campaigns.
Integrates link building with downstream validation in a single preflight command, rather than treating link generation as a separate step — allows developers to validate that generated links actually resolve and contain proper metadata before campaign launch
Faster than manual UTM builders or spreadsheet-based approaches because it combines generation, validation, and metadata inspection in one CLI invocation without context switching
destination url validation and redirect chain resolution
Medium confidenceFollows HTTP redirect chains (301, 302, 307, 308) to resolve final destination URLs, detecting redirect loops and validating that campaign links actually reach intended landing pages. Implements configurable timeout and hop limits to prevent infinite redirect scenarios, returning both the final URL and the complete redirect chain for debugging.
Combines redirect resolution with metadata inspection (OG tags, Twitter Cards) in a single validation pass, allowing developers to catch both broken redirects AND missing social metadata in one command rather than running separate tools
More comprehensive than simple HTTP status checkers because it resolves the full redirect chain and validates final-destination metadata, not just the initial response code
open graph and twitter card metadata extraction and validation
Medium confidenceParses HTML responses to extract Open Graph (og:title, og:description, og:image, og:url) and Twitter Card (twitter:card, twitter:title, twitter:description, twitter:image) meta tags. Validates that required tags are present, image URLs are accessible, and dimensions meet platform specifications (e.g., Twitter image minimum 200x200px). Returns structured metadata report with validation status.
Validates both presence AND correctness of social metadata (e.g., image dimensions, URL accessibility) rather than just checking if tags exist, providing actionable feedback for fixing social preview issues
More thorough than browser-based social preview tools because it validates metadata programmatically and can batch-check hundreds of URLs, making it suitable for CI/CD integration
mobile readiness assessment and responsive design validation
Medium confidenceAnalyzes landing pages for mobile optimization signals including viewport meta tag presence, responsive CSS media queries, touch-friendly button sizes (minimum 44x44px), font readability (minimum 16px base), and viewport configuration. Returns structured report with specific issues and recommendations for improving mobile experience.
Combines multiple mobile readiness signals (viewport, CSS, font sizes, button dimensions) into a single validation report rather than checking each in isolation, providing a holistic mobile readiness score
Faster than running Google Mobile-Friendly Test or Lighthouse for batch validation because it performs static analysis without rendering, making it suitable for pre-launch validation of dozens of campaign variants
unified preflight validation orchestration
Medium confidenceOrchestrates all validation capabilities (redirect resolution, OG/Twitter metadata extraction, mobile readiness assessment) in a single CLI command, executing them in parallel or sequence based on configuration. Aggregates results into a comprehensive pre-launch report with pass/fail status, specific issues, and actionable remediation steps. Supports configuration files for reusable validation profiles.
Combines link building, validation, and inspection into a single atomic operation with configuration-driven profiles, allowing teams to define once and reuse validation standards across all campaigns rather than manually running separate tools
More efficient than running separate validation tools because it batches network requests and aggregates results into a single report, reducing total validation time by 60-70% compared to sequential tool execution
mcp (model context protocol) server integration for ai-assisted campaign validation
Medium confidenceExposes campaign link building and validation capabilities as MCP server resources and tools, allowing AI agents and LLM-powered applications to programmatically generate UTM links, validate destinations, and inspect metadata. Implements MCP resource types for campaign configurations and validation results, enabling AI systems to reason about campaign health and suggest optimizations.
Implements MCP server pattern to expose campaign validation as composable tools for AI agents, enabling LLMs to reason about campaign health and suggest optimizations rather than just reporting validation results
Enables AI-assisted campaign optimization that would be impossible with CLI-only tools, allowing LLMs to analyze validation results and suggest improvements (e.g., 'your OG image is too small, consider 1200x630px')
Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.
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Best For
- ✓marketing teams building multi-channel campaigns
- ✓growth engineers automating link generation in CI/CD pipelines
- ✓solo developers prototyping marketing analytics integrations
- ✓QA engineers validating campaign links before launch
- ✓marketing ops teams auditing link health across active campaigns
- ✓developers building pre-flight validation into deployment pipelines
- ✓social media managers validating preview appearance before posting
- ✓marketing teams ensuring brand consistency across social shares
Known Limitations
- ⚠No built-in parameter validation against Google Analytics 4 reserved parameters
- ⚠Does not deduplicate identical links across batches
- ⚠No support for custom URL shortening integrations (bit.ly, TinyURL, etc.)
- ⚠Does not handle JavaScript-based redirects (client-side navigation)
- ⚠Cannot validate redirects behind authentication or paywalls
- ⚠Timeout defaults may be too aggressive for slow CDNs or regional endpoints
Requirements
Input / Output
UnfragileRank
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Repository Details
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Campaign link builder & pre-launch validator. Builds UTM links, validates destinations, checks OG tags, Twitter Cards, mobile readiness, and redirects. One preflight command does build + validate + inspect.
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