Pure DNS

Blacklist Check

Check an IP address or domain against 30 IP blacklists and 4 domain blacklists. For a domain, its website IPs and mail server IPs are all checked.

Looking up…
Checked
52.101.50.1
1 IP · 389 ms
Listed
0
Not on any blacklist
Clean
30
of 30 checks
No result
0
0 timeout · 0 refused · 0 error

52.101.50.1 Clean

IP address · PTR: mail-co1pr05cu00401.inbound.protection.outlook.com
Check this IP only
StatusBlacklistZoneDetailsTime
OK Barracuda b.barracudacentral.org 87 ms
OK blocklist.de bl.blocklist.de 10 ms
OK DroneBL dnsbl.dronebl.org 24 ms
OK EFnet RBL rbl.efnetrbl.org 121 ms
OK Fabel Spamsources spamsources.fabel.dk 76 ms
OK GBUdb Truncate truncate.gbudb.net 107 ms
OK IMP Spam spamrbl.imp.ch 34 ms
OK IMP Worm wormrbl.imp.ch 38 ms
OK INPS dnsbl.inps.de 46 ms
OK InterServer rbl.interserver.net 84 ms
OK JustSpam dnsbl.justspam.org 157 ms
OK Lashback UBL ubl.unsubscore.com 13 ms
OK Mailspike bl.mailspike.net 13 ms
OK Manitu (NiX Spam) ix.dnsbl.manitu.net 27 ms
OK NordSpam bl.nordspam.com 14 ms
OK NSZones bl.nszones.com 108 ms
OK PSBL psbl.surriel.com 81 ms
OK S5H all.s5h.net 10 ms
OK SpamCop bl.spamcop.net 10 ms
OK Spamhaus ZEN zen.spamhaus.org 10 ms
OK SpamRATS Dyna
Dynamic / generic rDNS
 dyna.spamrats.com 161 ms
OK SpamRATS NoPtr
Missing reverse DNS
 noptr.spamrats.com 153 ms
OK SpamRATS Spam spam.spamrats.com 142 ms
OK SPFBL dnsbl.spfbl.net 195 ms
OK Suomispam bl.suomispam.net 30 ms
OK UCEPROTECT Level 1 dnsbl-1.uceprotect.net 17 ms
OK UCEPROTECT Level 2
Lists whole IP ranges
 dnsbl-2.uceprotect.net 113 ms
OK UCEPROTECT Level 3
Lists whole networks (ASN)
 dnsbl-3.uceprotect.net 116 ms
OK Woody blacklist.woody.ch 34 ms
OK WPBL db.wpbl.info 15 ms

Lists are queried directly at their own name servers. Refused means the list declined to answer (usually rate limits), not that you're listed. Timeout means the list didn't respond in time.