| Brand-word or page-trace shortcut | Users who only want a rough first glance | Footers, brand words, DNS traces, and template fingerprints | This most easily merges the platform brand, frontage layer, and raw provider into one answer | Low | Use only as a first-pass screen |
| Fly.io Hosting platform attribution | Users who need to judge whether the website, API, or application looks more like Fly.io Hosting | application-platform traces, distributed deployment behavior, edge-network traits, and DNS or CNAME patterns | It answers the platform direction, but it still cannot replace raw-network and seller-boundary judgment | Low-medium | Best as the main decision layer |
| Platform model plus raw-layer cross-check | Users who need to separate the platform model from final responsibility | Separate the distributed-platform entry point, edge runtime, and the real business-backend boundary; Visible edge nodes do not automatically describe the full application architecture or final seller boundary | It needs more context and often ends in high confidence rather than absolute proof | Medium | Best as the final judgment path |