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MultiRBL vs GlockApps: catalog facts
MultiRBL	GlockApps
Free Free to use, with optional Bitcoin donations.	Freemium A free spam checker and DNS record checkers are available; full placement testing and…
Web	Web
Checks over 200 blacklists and whitelists Supports IPv4 and IPv6	Shows inbox or spam placement across major mail providers Checks SPF, DKIM and DMARC alongside blocklists and spam score
No help with removal requests Plain interface with lots of technical output	Full seed-list testing requires a paid plan Aimed at bulk and marketing senders more than individuals
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.