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Cisco Talos Reputation Center vs Sender Score: catalog facts
Cisco Talos Reputation Center	Sender Score
Free Reputation lookups are free.	Free The score lookup and related tools are offered free by Validity.
Web	Web
Looks up both IP addresses and domains Reflects data used by Cisco security products	Quick reputation score for an IP address or domain Return Path Blocklist lookup and removal request in one place
Disputes must go through a separate support site Only shows Cisco's own reputation view	Site also promotes Validity's paid email services Score reflects Validity's own data rather than every mailbox provider
Web application	Web application
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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