TU Dresden Research Portal (Elsevier Pure) Web Service
TU Dresden's research information system, a current-research-information-system tenancy on Elsevier Pure, published to the world as the TUD Research Portal at fis.tu-dresden.de. The public portal is fully browsable and answers 200. The programmable side is not reachable from the public internet: /ws/api, /ws/rest and /ws/oai?verb=Identify all return an Apache 403 — an edge denial ahead of any application authentication — so neither the Pure web service nor its OAI-PMH interface can be harvested from outside, and no metadata profile, set list or error envelope can be observed. Recorded as a real institutional surface with an honest ceiling: TU Dresden operates a CRIS, and none of it is machine-readable to the public.