The link verification engine performs ranged streaming GET requests through safe_get to validate URL status codes while enforcing SSRF protection and in-memory caching.
flowchart LR
A[Extracted Link] --> B{SSRF Check}
B -- Blocked IP/Host --> C[Mark Dead]
B -- Public Host --> D[GET bytes=0-0]
D --> E{Status Code}
E -- 2xx / 3xx --> F[Keep in Draft]
E -- 4xx / 5xx / Timeout --> G[Unwrap Anchor Text]