defaults and limits

Defaults and limits

Every default value and hard limit in one place. Where a range is given, the value is configurable within it.

Where the settings live

Settings opens on an overview of every page, grouped into six rubrics; the sidebar holds the same list. Each page has an address of its own — /settings/bandwidth, /settings/usenet — so one can be bookmarked or linked to.

Group	Pages
General	General · Interface
Downloads	Hotfolders · LinkGrabber · Storage & rules · Post-processing · Bandwidth · Unattended operation
Sources & protocols	Services · Accounts · Captcha & solver · Site rules · Usenet · BitTorrent · Media · FTP, SFTP, WebDAV & S3
Integrations	Plugins · Tools · Notifications · Clients & API
Network & security	Network · Security
Administration	Backup & restore · System · About rDownloader

A page name is used throughout this handbook as Settings → <page>. An address that names no page opens the overview.

Queue and transfers

Setting	Default / limit
Simultaneous downloads	3
HTTP chunks per file	4
Connections per host	6; 0 lifts the limit
NNTP connections per server	0 = as many as the servers allow
Usenet files at once	0 = automatic, 2–8; a fixed 1–8; all together take one active-file slot
Retries per file	8, configurable 0–100; waiting out a hoster's limit or IP block does not count
Waits for a hoster's limit in a row	48; one hour each without a stated reset, 15 minutes for an IP block
Automatic retry of failed downloads	Disabled; when on, after 6 hours (1–24), 3 rounds per download (0–100, 0 = no limit)
Global download limit	Unlimited
Upload limit (every upload; set by hand and per bandwidth profile)	Unlimited
SHA-256 generation	Enabled
Import history	Retained
Mirror recognition	Enabled
Automatic removal of finished packages	Disabled; when on, after 24 hours, configurable 1–720
Packages with errors on automatic removal	Kept
Downloads during post-processing	Paused

Post-processing

Setting	Default / limit
Global post-processing level	+Unpack
Post-process only verified packages	On
SFV verification	On
PAR2 recovery-set deletion	Off
Recursive extraction	Off; capped at 3 additional passes
Maximum archive entries	20,000
Maximum extracted archive size	100 GiB
Sample threshold	300 MiB
Script timeout	3,600 seconds

Media, galleries and recordings

Setting	Default / limit
Parallel media jobs	2, configurable 1–8
Media probe timeout	60 seconds, configurable 5–600
Media pause between requests / before each download	0 seconds (off), configurable 0–600
Parallel gallery jobs	2, configurable 1–8
Stream check interval	120 seconds, configurable 60–3,600
Parallel recordings	2, configurable 1–8
Concurrent recordings per channel	1

Services

Setting	Default
Torrent, Usenet, media, galleries, recordings, remote transfer	All enabled

BitTorrent

Setting	Default
Data sharing with peers	Disabled
Seeding	Disabled
Target ratio	1.0 when seeding is enabled
Peer port	Random
Upload limit	Unlimited
Active torrent downloads	4, configurable 1–32
Active seeds	No limit

File size limits

Item	Limit
NZB file	64 MiB
.torrent file	16 MiB
A file handed in as JSON (REST or MCP)	48 MiB — its base64 fills the 65 MiB request limit
A .torrent or .nzb handed to a remote job	16 MiB
Files from one MEGA folder link	1,000 — a larger folder is refused, not truncated
Links per capture batch	100
Stored request headers	32 per link, from a fixed allowlist
Captured header and text fields	4,096 characters
rdownloader:// links per address	50, and 8,192 characters

Hosters and captchas

Setting	Default / limit
Concurrent free downloads	1 per hoster
Captcha answer timeout	180 seconds, configurable 15–600
A captcha page in your browser that shows no widget	The wait ends after 15 seconds
A request to take a session over from the browser	Waits five minutes
IP-block hold-off	15 minutes when the hoster names no duration
Reconnect	Disabled

Authentication

Setting	Default
Administrator session	Ends after 12 hours without a request (1–720) or 30 days from sign-in (at most 90), whichever comes first; persisted across restarts
Administrator password	At least 10 characters
Second factor (TOTP)	Disabled; ten single-use recovery codes at enrolment
Passkeys	None enrolled; independent of the second factor
Login rate limiting	Per address, with a global delay capped at 2 seconds
Trusted proxies	None — the peer address is the client
Cookie security	auto, following the external URL's scheme

Watched folders

Setting	Default / limit
Poll interval, all watched folders	30 seconds, configurable 5–3,600

Logs, audit and statistics

Setting	Default	Range
Log level	Info	Error, Warning, Info, Debug; RUST_LOG at start overrides it
Debug for a while	—	15, 30 or 60 minutes, one area
Log lines per plugin call	50	fixed; the rest summed up in one warning
Log records kept	20,000	1,000 – 500,000
Log days kept	14	1 – 365
Audit records kept	100,000	10,000 – 2,000,000
Audit days kept	365	30 – 3,650
Hourly transfer figures kept	30 days	1 day up to the retention
Daily transfer figures kept	365 days	7 – 3,650
Download history entries kept	10,000	100 – 100,000
Download history days kept	365	1 – 3,650
Newest backup before an update kept, after the update is proven	14 days	0 (for good) – 3,650
Compiled plugin code kept in plugin-cache/	256 MiB	fixed
Skipped or dismissed subscription entries kept whole	30 days	0 (for good) – 3,650
Stored service events (progress is not stored)	30 days	fixed
OpenTelemetry trace export	Disabled	—
OpenTelemetry timeout	5 seconds	1 – 60

Whichever of a pair of retention limits runs out first is the one that applies. trace level is never stored, whatever RUST_LOG says.

Interface

Setting	Default
Byte units	Binary (KiB/MiB/GiB)
Byte magnitude	Scaled automatically
State in the browser tab	Enabled
Packages start closed in the Downloads	Enabled
Packages start closed in the LinkGrabber	Off
Schedule time zone	Europe/Berlin
Theme	System
Language	Auto-detected from the browser
Subscription hits in the LinkGrabber	List, per subscription
Card autoplay	Off, per subscription; six seconds per page when on
Card aspect ratio	2:1, per subscription

Addresses and ports

Item	Default
Web interface and API	127.0.0.1:8710
Capture agent (Click'n'Load)	127.0.0.1:9666 and [::1]:9666, loopback only
Docker listen address	0.0.0.0:8710

External tools

Setting	Default
Managed tool versions	Disabled
Tool manifest	The one built into this release; a URL can be configured
Compatibility rule overrides	None
Tool lookup order	Custom path → configured vendor dir → vendor/ beside the executable → vendor/ in the data dir → PATH

All four are on Settings → Tools: the lookup on the tab Paths, the rest on Managed tools.

Version floors are on External tools.

What is not persisted

Four things are deliberately held in memory only, and are gone after a restart:

• A waiting captcha. The download behind it returns to the queue and raises a fresh challenge.
• A request to take a session over from the browser. Ask again with Take over from browser.
• An active IP block. The first free link of that hoster is tried once more and re-arms the block if the hoster still refuses.
• The event stream's replay buffer. A client that reconnects within it is handed what it missed; after a restart there is nothing to replay, and the client is told so.

Related pages

• The download queue
• Post-processing
• Accounts, sessions and permissions
• External tools
• Troubleshooting