HTTP/2 302 content-length: 0 location: /pow-challenge/?return=https%3A%2F%2Fwww.bibsonomy.org%2F cache-control: no-cache HTTP/2 200 date: Sat, 17 Jan 2026 19:32:47 GMT content-type: text/html last-modified: Tue, 09 Dec 2025 07:29:35 GMT etag: W/"6937cfdf-1e81" content-encoding: gzip x-pingback: https://scraper.bibsonomy.org/xmlrpc strict-transport-security: max-age=16848000; includeSubDomains; preload;