Network Observability for Critical Edge Infrastructure
From multi-CDN routing flaps to mission-critical financial APIs, NELSink captures last-mile connection drops that synthetic probes and JavaScript APMs fail to observe.
Industry Solutions & Use Cases
Purpose-built architectures designed for high-availability edge systems and mission-critical web applications.
Multi-CDN & Global Edge Infrastructure
Anycast BGP & CDN FailoverDetect Anycast BGP routing blackholes, edge SSL certificate renewal failures, and cross-CDN failovers before synthetic probes trigger. Identify regional CDN peering degradation affecting specific residential ISPs.
- Anycast route flap alerts
- ACME renewal drop detection
- Cross-CDN latency analysis
- Multi-ASN corroboration
FinTech & API-First Platforms
Zero-Drop Transaction SecurityCatch silent payment gateway drops and mobile checkout connection resets with zero client-side JavaScript execution. Ensure regulatory transport auditability with deterministic socket-level failure records.
- Layer 4 socket drop tracking
- mTLS handshake validation
- Checkout API reachability
- SLA contract attestation
High-Traffic E-Commerce
Zero Web Vitals DegradationMaintain 0KB bundle overhead and zero INP/LCP impact during high-traffic sales events while monitoring last-mile buyer connectivity across mobile carriers and residential broadband networks.
- 0KB JavaScript footprint
- Cart endpoint drop alerts
- Mobile carrier isolation
- Zero CPU runtime overhead
B2B SaaS Platforms
Custom Domain GovernanceIsolate customer custom domain misconfigurations, intermediate transit disruptions, and apex DNS validation issues. Rotate ingestion tokens without dropped reports via dual-token rollover.
- Apex TXT record governance
- Dual-token zero-drop rollover
- Tenant domain error triage
- Automated header configuration
Edge Infrastructure Compatibility Matrix
NELSink supports universal W3C Network Error Logging configuration across edge proxies, CDNs, and origin ingress controllers.
| Platform | Architecture Role | Deployment Mechanism | Integration Status |
|---|---|---|---|
| Cloudflare | Global Edge & Workers | Transform Rules (Free) / Workers Header Injection | Verified |
| Fastly | VCL / Compute@Edge | vcl_deliver header injection & syslog dispatch | Verified |
| AWS CloudFront | CDN & Edge Functions | CloudFront Response Headers Policy / Lambda@Edge | Verified |
| Nginx | Origin & Reverse Proxy | add_header Directive with RFC 8941 Dictionary Syntax | Verified |
| Apache HTTP Server | Web Server & Ingress | mod_headers Header always set NEL Directive | Verified |
| Caddy Server | Automated HTTPS Edge | header directive in Caddyfile with dynamic token | Verified |
| Kubernetes Ingress | Ingress Controllers | Ingress annotations (ingress.kubernetes.io/configuration-snippet) | Verified |
Deploy Last-Mile Observability in Minutes
Verify your domain, copy our RFC 8941 compliant header snippet, and receive real-time failure telemetry directly from browser clients.