News

  • Standardized 15 minute TTLs

    September 17, 2004

    After trying DNS TTLs at 25, 20 and 15 minutes, it appears that 15 minute TTLs optimizes both name server traffic and the quickness of records being added or deleted from the lists. Therefore we are standardizing on 15 minute TTLs for all SURBLs.


SURBL Data Feed Request

SURBL Data Feeds offer higher performance for professional users through faster updates and resulting fresher data. Freshness matters since the threat behavior is often highly dynamic, so Data Feed users can expect higher detection rates and lower false negatives.

The main data set is available in different formats:

Rsync and DNS are typically used for mail filtering and RPZ for web filtering. High-volume systems and non-filter uses such as security research should use rsync.

For more information, please contact your SURBL reseller or see the references in Links.

Sign up for SURBL Data Feed Access.

  • Sign up for data feed access

    Direct data feed access offers better filtering performance with fresher data than is available on the public mirrors. Sign up for SURBL Data Feed Access.

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