News


  • Clean up of redundant zone files

    08/17/2004

    We are cleaning up some of the redundant zone files in the SURBL rsync server: surbl.rbldnsd - going away, use sc.surbl.org.rbldnsd instead *.rbldns - going away when no traffic, use ...read more


  • TTLs lowered to 1 hour

    08/11/2004

    We have lowered the TTLs on SURBL zone files to 1 hour. This includes multi.surbl.org, but does not include sc.surbl.org which already had a 10 minute TTL. This should cause new entries to take ...read more


  • New whitelist sources added

    07/01/2004

    Added a new whitelist source: domains of publically-traded companies listed at dmoz and Google. Each yields lists of about 4300 or so of mostly the same domains which are now excluded from SURBLs. ...read more


  • Updated SURBL records

    06/29/2004

    be.surbl.org records are now included in ws.surbl.org, so please use ws.surbl.org instead of be. be is now frozen and the content in it may go away ...read more


  • Three new SURBL lists available

    06/03/2004

    Three new SURBL lists are available: ob.surbl.org, ab.surbl.org, multi.surbl.org. The first two match advertised sites kindly provided by Outblaze and AbuseButler respectively. multi is a ...read more


  • Removing subdomains from generic TLDs

    05/06/2004

    We are now properly removing any subdomains (third or greater level domains or host names) from generic TLDs. (For example, abc.defxyz.com becomes defxyz.com.) This change may result in slightly ...read more


  • Zone refresh times adjusted

    05/05/2004

    Zone file refresh times on ws.surbl.org and be.surbl.org have been lowered from several hours to 20 minutes. TTLs for those zones remain at several hours. This change probably will affect few if ...read more


  • sa.surbl has been removed

    04/27/2004

    sa.surbl.org is gone. Please use ws.surbl.org instead, since it is the new name for the domains from Bill Stearns' ...read more


  • Modification of rbldnsd zone files

    04/24/2004

    In order to prevent future confusion, we are changing the names of the rbldnsd zone files from .rbldns to .rbldnsd . If you are using rbldnsd, please update your rsync and cron configs to use the ...read more


  • Zone files modified

    04/24/2004

    Zone files now only update when the underlying hosts have changed. ...read more


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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.

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    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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