{"eid":"x0","name":"x0.at","domain":"x0.at","resolved_by":"domain","topics":["storage"],"n_records":1,"best_vorder":6,"review":null,"aliases":["x0.at","x0.at (filehost2, x0.at / 0x0 family)"],"records":[{"rid":"storage/x0-at","card":{"rid":"storage/x0-at","eid":"x0","topic":"storage","slug":"x0-at","provider":"x0.at (filehost2, x0.at / 0x0 family)","url":"https://x0.at","domain":"x0.at","category":"anonymous-dump","tier":null,"verdict":"fails-quota","vorder":6,"grp":"rejected","self_hosted":0,"confidence":"documented","binding":"retention-clamped","identity_kind":"anonymous","identity_basis":"stated","needs_card":0,"needs_phone":0,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":"rest,rclone","egress_metered":0,"per_object_bytes":1073741824,"retention_days":100,"verified_at":"2026-11-03T15:04:08.279Z","verified_basis":"live","checked_on":"2026-11-03","stale_on":"2026-12-04","n_evidence":11,"usd_month":null,"usd_per_tb_month":null,"summary":"The maximum allowed file size is 1024 MiB; uploads are a plain HTTP POST with no account step; files are kept 3 to 100 days depending on size; no total quota...","duplicate_of":null,"n_unknown":4,"free_unit":"mixed"},"record":{"topic":"storage","slug":"x0-at","provider":"x0.at (filehost2, x0.at / 0x0 family)","url":"https://x0.at","category":"anonymous-dump","free_tier":{"stated":"The maximum allowed file size is 1024 MiB; uploads are a plain HTTP POST with no account step; files are kept 3 to 100 days depending on size; no total quota is stated on the page.","unit":"mixed","metered_on":"unstated","source_url":"https://x0.at/","read_on":"2026-10-21","notes":null},"per_object_cap":{"stated":"1024 MiB per file","bytes":1073741824,"source_url":"https://x0.at/","notes":"not stated"},"retention":{"stated":"Retention 3 to 100 days, scaled by file size via MIN_AGE + (MAX_AGE - MIN_AGE) * (1 - size/max_size)^2, so small files live ~100 days and near-max files ~3 days","days":100,"source_url":"https://x0.at/","notes":"not stated"},"egress":{"terms":"free direct HTTPS GET from x0.at, no redirect, no metering; Content-Length served correctly and range requests supported.","metered":false},"interface":["rest","rclone"],"interface_detail":"rest","tooling":"plain curl multipart: curl -F file=@x https://x0.at/ (also -F keep_name=1, -F id_length=N). ShareX and Hupl configs published. Open-source server: github.com/Rouji/filehost2 (37 stars). No rclone backend.","chaining":"unlimited anonymous uploads at 1 GiB each with random IDs; the only chaining needed is a client-side index of returned URLs. Retention is the binding constraint, not quota.","limits":[{"kind":"per-object-cap","value":"1024 MiB per file","source":"https://x0.at/"},{"kind":"per-object-cap","value":"1024 MiB/file","source":"https://x0.at/"},{"kind":"retention-clamped","value":"Retention 3 to 100 days","source":"https://x0.at/"}],"limits_note":"1024 MiB/file; 3-100 day retention driven by size; no accounts so no listing or bulk delete; deletion only by knowing the URL.","identity_cost":{"kind":"anonymous","detail":"no account: uploads are a plain HTTP POST (curl -F file=@...); the page documents no sign-in step","country":null},"reliability_note":"Longest-lived 0x0 derivative still accepting uploads. Provenance is a hobby VPS; no durability guarantee and expiry is silent and size-dependent. Treat as a 3-8 week cache tier, not archive.","confidence":"documented","confidence_note":"page read on 2026-11-03: x0.at (The maximum allowed file size is 1024 MiB.; Files are kept for a minimum of 3, and a maximum of 100 Days.; the MIN_AGE + (MAX_AGE - MIN_AGE) * (1-(FILE_SIZE/MAX_SIZE))^2 formula; upload by a simple HTTP POST). Upload and download probes were not run on 2026-11-03; the egress terms and the reliability note are not from that read.","evidence":[{"url":"https://x0.at/","date":"2026-10-21","proved":"'The maximum allowed file size is 1024 MiB', 'Files are kept for a minimum of 3, and a maximum of 100 Days', retention formula quoted verbatim"},{"url":"https://x0.at/","date":"2026-10-21","proved":"probe: curl -F file=@x5.bin -> https://x0.at/UdCm.bin; GET -> 200, bytes=5000000"},{"url":"https://x0.at/","date":"2026-10-21","proved":"probe: curl -F file=@x80.bin (80,000,000 bytes) -> https://x0.at/Z5CJ.bin (accepted at scale, not just in theory)"},{"url":"https://x0.at/","date":"2026-11-03","proved":"the maximum file size is 1024 MiB","capture":"sha256:31b21b7e00754263cd5805e9f4ba10dc2c202640a65c2164c99c5b33d8b97df4","quote":"The maximum allowed file size is 1024 MiB."},{"url":"https://x0.at/","date":"2026-11-03","proved":"the limits on the page are a per-file size and an age, with no total quota","capture":"sha256:31b21b7e00754263cd5805e9f4ba10dc2c202640a65c2164c99c5b33d8b97df4","quote":"The maximum allowed file size is 1024 MiB."},{"url":"https://x0.at/","date":"2026-11-03","proved":"upload is a plain HTTP POST described without a sign-in step","capture":"sha256:31b21b7e00754263cd5805e9f4ba10dc2c202640a65c2164c99c5b33d8b97df4","quote":"You can upload files to this site via a simple HTTP POST, e.g. using curl:"},{"url":"https://x0.at/","date":"2026-11-03","proved":"stored files expire after at most 100 days","capture":"sha256:31b21b7e00754263cd5805e9f4ba10dc2c202640a65c2164c99c5b33d8b97df4","quote":"Files are kept for a minimum of 3, and a maximum of 100 Days."},{"url":"https://x0.at/","date":"2026-11-03","proved":"retention is 3 to 100 days","capture":"sha256:31b21b7e00754263cd5805e9f4ba10dc2c202640a65c2164c99c5b33d8b97df4","quote":"Files are kept for a minimum of 3, and a maximum of 100 Days."},{"url":"https://x0.at/","date":"2026-11-03","proved":"the page states the size-dependent retention formula","capture":"sha256:31b21b7e00754263cd5805e9f4ba10dc2c202640a65c2164c99c5b33d8b97df4","quote":"MIN_AGE + (MAX_AGE - MIN_AGE) * (1-(FILE_SIZE/MAX_SIZE))^2"},{"url":"https://x0.at/","date":"2026-11-03","proved":"retention is 3 to 100 days as recorded","capture":"sha256:31b21b7e00754263cd5805e9f4ba10dc2c202640a65c2164c99c5b33d8b97df4","quote":"Files are kept for a minimum of 3, and a maximum of 100 Days."},{"url":"https://x0.at/","date":"2026-11-03","proved":"files are kept 3 to 100 days","capture":"sha256:31b21b7e00754263cd5805e9f4ba10dc2c202640a65c2164c99c5b33d8b97df4","quote":"Files are kept for a minimum of 3, and a maximum of 100 Days."}],"verdict":"fails-quota","verified_at":"2026-11-03T15:04:08.279Z","notes":"1024 MiB per file, no account, no per-account cap — unlimited uploads. Retention 3 to 100 days, scaled by file size via MIN_AGE + (MAX_AGE - MIN_AGE) * (1 - size/max_size)^2, so small files live ~100 days and near-max files ~3 days.","extras":{"dead_end":{"failure_class":"retention","why":"1024 MiB per file, no account, no per-account cap — unlimited uploads. Retention 3 to 100 days, scaled by file size via MIN_AGE + (MAX_AGE - MIN_AGE) * (1 - size/max_size)^2, so small files live ~100 days and near-max files ~3 days.","retry_when":null,"first_recorded":"2026-10-21"}},"binding":"retention-clamped","binding_note":"files are kept for at most 100 days (3 days minimum, shorter for larger files), so a stored set expires; the 1024 MiB per-file cap sets the object count"},"claims":[{"path":"$.free_tier","kind":"has-free-tier","num":1.0,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.free_tier.stated","kind":"free-quota","num":1024.0,"unit":"MiB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:per-object-cap","num":1024.0,"unit":"MiB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[1].value","kind":"limit:per-object-cap","num":1024.0,"unit":"MiB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[2].value","kind":"limit:retention-clamped","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"}],"unknown":[["$.extras.dead_end.retry_when","process"],["$.free_tier.notes","process"],["$.per_object_cap.notes","not-extracted"],["$.retention.notes","not-extracted"]],"history":[],"drift":[]}]}