{"eid":"ctfile","name":"Ctfile","domain":"ctfile.com","resolved_by":"domain","topics":["netdisk-pan"],"n_records":1,"best_vorder":1,"review":null,"aliases":["Ctfile","Ctfile (城通网盘, ctfile.com)","ctfile.com"],"records":[{"rid":"netdisk-pan/ctfile","card":{"rid":"netdisk-pan/ctfile","eid":"ctfile","topic":"netdisk-pan","slug":"ctfile","provider":"Ctfile (城通网盘, ctfile.com)","url":"https://www.ctfile.com/","domain":"ctfile.com","category":"consumer-pan","tier":null,"verdict":"qualifies-with-caveat","vorder":1,"grp":"usable","confidence":"documented","binding":"retention-clamped","identity_kind":"email","identity_basis":"stated","needs_card":0,"needs_phone":1,"needs_id":0,"needs_institution":0,"country":null,"crypto":null,"interfaces":"rest,webdav,cli","egress_metered":0,"per_object_bytes":20000000000,"retention_days":30,"verified_at":"2026-10-22T03:37:00.574Z","verified_basis":"live","checked_on":"2026-10-23","stale_on":"2026-11-13","n_evidence":4,"usd_month":null,"usd_per_tb_month":null,"summary":"5 TB of shared space on the free tier, 20 GB per file, and no upload speed cap","duplicate_of":null,"n_unknown":0},"record":{"topic":"netdisk-pan","slug":"ctfile","provider":"Ctfile (城通网盘, ctfile.com)","url":"https://www.ctfile.com/","category":"consumer-pan","free_tier":{"stated":"5 TB of shared space on the free tier, 20 GB per file, and no upload speed cap","unit":"TB","metered_on":"stored-bytes","source_url":"https://www.ctfile.com/register","read_on":"2026-10-22","notes":"the landing page and the register page agree on 5 TB and 20 GB; the help centre adds 20 GB free and 30 GB for Standard members"},"per_object_cap":{"stated":"20 GB per file on the free tier; 30 GB on Standard","bytes":20000000000,"source_url":"https://www.ctfile.com/help","notes":"terms section 3.2.8 states the same two numbers as a default"},"retention":{"stated":"files are deleted after 30 consecutive days without a sign-in on a free account, or 365 days on a paid account","days":30,"source_url":"https://www.ctfile.com/terms","notes":"terms section 3.2.5, quoted; the landing page states it as 'log in once a month to renew'"},"egress":{"terms":"downloads are metered by tier rather than by byte: free accounts have no published volume cap but a slow channel, Standard is stated at 'up to 5MB/sec', and Super removes the limit; no per-GB egress price is published","metered":false,"free_allowance":null,"price_per_tb":null,"source_url":"https://www.ctfile.com/"},"interface":["rest","webdav","cli"],"tooling":"first-party desktop client and a WebDAV endpoint; the free tier advertises WebDAV and the Super tier advertises 'WebDAV batch download'; the nfd-parser project ships a ct driver","chaining":"the only Chinese pan in this survey that a foreigner can self-register for with an email address alone, so it is the one that can sit under a self-hosted bridge without a +86 number","limits":[{"kind":"retention-clamped","value":"30 consecutive days without a sign-in deletes files on a free account","source":"https://www.ctfile.com/terms"},{"kind":"per-object-cap","value":"20 GB per file on the free tier","source":"https://www.ctfile.com/terms"},{"kind":"request-rate","value":"200,000 files and 10,000 folders per account; 10,000 file uploads per day; 5 concurrent download and 5 concurrent upload threads","source":"https://www.ctfile.com/terms"}],"identity_cost":{"kind":"email","detail":"the register page offers email and password as the primary path with 'Sign up with phone instead' as the alternative; no card, no ID, no +86 requirement stated","country":null},"reliability_note":"Over-quota triggers deletion of the excess without prior notice, and the inactivity clock deletes a free account's files at 30 days; a monthly sign-in cron keeps it alive and nothing else does.","confidence":"documented","evidence":[{"url":"https://www.ctfile.com/register","date":"2026-10-22","proved":"the signup form offers Email and Password with a human-verification step, and states 'Sign up with phone instead'; the page advertises 5TB free, 20GB per file, and 'Direct link sharing, WebDAV and online media playback'"},{"url":"https://www.ctfile.com/help","date":"2026-10-22","proved":"'Free users: Max 20GB per file / Standard members: Max 30GB per file', and the registration steps are email, password, email verification with no identity document"},{"url":"https://www.ctfile.com/terms","date":"2026-10-22","proved":"section 3.2.5 deletes stored files after 30 consecutive days without sign-in on a free account; 3.2.7 caps an account at 200,000 files and 10,000 uploads per day; 3.2.8 caps a file at 20GB; 3.2.9 caps 5 concurrent download and 5 concurrent upload threads"},{"url":"https://www.ctfile.com/","date":"2026-10-22","proved":"'Free users enjoy 5TB shared space, upgrade to membership for up to 70TB'; Standard CNY 28/month or CNY 98/year; Super CNY 38/month or CNY 258/year with 10TB shared and 2TB private"}],"verdict":"qualifies-with-caveat","verified_at":"2026-10-22T03:37:00.574Z","binding":"retention-clamped","notes":"5 TB free, 20 GB per file, email-only registration, WebDAV advertised. The 30-day inactivity deletion is the number that decides how it can be used: a monthly cron job keeps it, and nothing else does. Terms section 3.2.7 also caps the account at 200,000 files, which at 20 GB per file is a 4 PB nominal ceiling and therefore not the constraint.","extras":{"access_mode":"registration-gated","registration":"email + password + human-verification step","webdav_tier":"advertised on the free tier and on Super as batch download","inactivity_days_free":30,"inactivity_days_paid":365,"file_count_cap":200000,"daily_upload_cap":10000},"binding_note":"The identity gate is the one that usually closes a Chinese pan, and this one is open; what binds is the 30-day inactivity clock, which makes it a working set and not an archive."},"claims":[{"path":"$.free_tier.stated","kind":"free-quota","num":5.0,"unit":"TB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[0].value","kind":"limit:retention-clamped","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"},{"path":"$.limits[1].value","kind":"limit:per-object-cap","num":20.0,"unit":"GB","per":null,"currency":null,"usd":null,"fx_date":null,"parse":"ok"},{"path":"$.limits[2].value","kind":"limit:request-rate","num":null,"unit":null,"per":null,"currency":null,"usd":null,"fx_date":null,"parse":"unparsed"}],"unknown":[],"history":[],"drift":[]}]}