Features

What goes into the backup?

What's on your main server today, and what changes on it later.

New messages, edits, deletions, role changes and bans reach the backup within seconds.

After a restart, it picks up where it left off and catches up on what it missed.

Images and videos are re-uploaded, not just linked, up to the backup server's size limit.

What	How
Messages	The first copy and ongoing sync, with the original name, avatar and date; replies, forwarded messages, polls, embeds and reactions.
Images, videos, files	In original quality, in the same message as the original, up to the backup server's size limit.
Edits, deletions	As they happen. Anything that changed while the bot was down is caught up when it restarts.
Channels	Categories, text, announcement, voice, stage and forum channels, with name, topic, NSFW, slow mode, user limit, bitrate and order.
Channel permissions	Per-channel permissions for roles and members, kept in sync.
Threads	Active, archived and private threads, and forum posts.
Roles	Name, colour, permissions, separate display, mentionable setting and order, plus @everyone permissions.
Members	Members who are also on the backup server get the same roles, nickname and personal permissions.
Bans	Existing and new bans, and unbans.
Server	Banner, invite background, verification level, notifications, content filter, AFK and system channels. The backup's name and icon stay as they are.
Emojis, stickers	Created, renamed and deleted to match the main server.
Log	The dashboard shows how much of what was synced, and every live change.

The largest file that can be uploaded to the backup server: 10 MB without boosts, Level 2: 50 MB, Level 3: 100 MB. Bigger files are linked.
A bot cannot invite members to a server. Whoever joins the backup gets their roles from the main server automatically.
Messages longer than 2000 characters (Nitro) appear as two consecutive messages in the backup.
Forum, stage and announcement channels are created as the same type only on a Community backup server.