Set robots.txt defaults to the following

[subtlecourage]

User-agent:ia_archiver
Disallow: /

User-agent: archive.org_bot
Disallow: /

User-agent: *
Disallow: /

User-agent: Rogerbot
User-agent: Exabot
User-agent: MJ12bot
User-agent: Dotbot
User-agent: Gigabot
User-agent: Baiduspider
User-agent: Ezooms
User-agent: Nutch
User-agent: archive.org_bot
User-agent: MJ12bot
User-agent: YandexBot
User-agent: AhrefsBot
User-agent: HTTrack
User-agent: Wget
User-agent: Zeus
User-agent: BLEXBot
User-agent: burroboot
User-agent: DOC
User-agent: MJ12Bot
User-agent: SemrushBot
User-agent: spbot
User-agent: UbiCrawler
User-agent: Zao
User-agent: Netsparker
User-agent: sitecheck.internetseer.com
User-agent: Zealbot
User-agent: MSIECrawler
User-agent: SiteSnagger
User-agent: WebStripper
User-agent: WebCopier
User-agent: Fetch
User-agent: Offline Explorer
User-agent: Teleport
User-agent: TeleportPro
User-agent: WebZIP
User-agent: linko
User-agent: Microsoft.URL.Control
User-agent: Xenu
User-agent: larbin
User-agent: libwww
User-agent: ZyBORG
User-agent: Download Ninja
User-agent: grub-client
User-agent: k2spider
User-agent: NPBot
User-agent: WebReaper
User-agent: CyotekWebCrawler
User-agent: Whizbang
User-agent: UniverseBot
User-agent: SlySearch
Disallow: /

[fbartels]

Having this as "the default" would probably collide with some users using Cloudron to host public facing websites (myself included).

Besides:

@subtlecourage said in Set robots.txt defaults to the following:

User-agent: *
Disallow: /

is already added to robots.txt of the app if you go into the "security" tab of a website and select "Disable indexing". What makes you think that bots that ignore * (meaning all user agents) will not index your website if you name their user agent individually?

[subtlecourage]

@fbartels Optimism and hope? /s

Great points.