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

github-com.mail.protection.outlook.com

4 IPs + domain · 601 ms

Listed

Not on any blacklist

Clean

124

of 124 checks

No result

0 timeout · 0 refused · 0 error

52.101.41.192 Clean

A record of github-com.mail.protection.outlook.com · PTR: mail-byapr04cu00400.inbound.protection.outlook.com

Check this IP only

Status	Blacklist	Zone	Time
OK	Barracuda	b.barracudacentral.org	91 ms
OK	blocklist.de	bl.blocklist.de	9 ms
OK	DroneBL	dnsbl.dronebl.org	24 ms
OK	EFnet RBL	rbl.efnetrbl.org	115 ms
OK	Fabel Spamsources	spamsources.fabel.dk	80 ms
OK	GBUdb Truncate	truncate.gbudb.net	113 ms
OK	IMP Spam	spamrbl.imp.ch	29 ms
OK	IMP Worm	wormrbl.imp.ch	38 ms
OK	INPS	dnsbl.inps.de	42 ms
OK	InterServer	rbl.interserver.net	76 ms
OK	JustSpam	dnsbl.justspam.org	154 ms
OK	Lashback UBL	ubl.unsubscore.com	9 ms
OK	Mailspike	bl.mailspike.net	14 ms
OK	Manitu (NiX Spam)	ix.dnsbl.manitu.net	27 ms
OK	NordSpam	bl.nordspam.com	11 ms
OK	NSZones	bl.nszones.com	102 ms
OK	PSBL	psbl.surriel.com	82 ms
OK	S5H	all.s5h.net	9 ms
OK	SpamCop	bl.spamcop.net	9 ms
OK	Spamhaus ZEN	zen.spamhaus.org	9 ms
OK	SpamRATS Dyna Dynamic / generic rDNS	dyna.spamrats.com	157 ms
OK	SpamRATS NoPtr Missing reverse DNS	noptr.spamrats.com	154 ms
OK	SpamRATS Spam	spam.spamrats.com	138 ms
OK	SPFBL	dnsbl.spfbl.net	197 ms
OK	Suomispam	bl.suomispam.net	28 ms
OK	UCEPROTECT Level 1	dnsbl-1.uceprotect.net	20 ms
OK	UCEPROTECT Level 2 Lists whole IP ranges	dnsbl-2.uceprotect.net	121 ms
OK	UCEPROTECT Level 3 Lists whole networks (ASN)	dnsbl-3.uceprotect.net	114 ms
OK	Woody	blacklist.woody.ch	29 ms
OK	WPBL	db.wpbl.info	10 ms

52.101.50.1 Clean

A record of github-com.mail.protection.outlook.com · PTR: mail-co1pr05cu00401.inbound.protection.outlook.com

Check this IP only

Status	Blacklist	Zone	Time
OK	Barracuda	b.barracudacentral.org	92 ms
OK	blocklist.de	bl.blocklist.de	9 ms
OK	DroneBL	dnsbl.dronebl.org	26 ms
OK	EFnet RBL	rbl.efnetrbl.org	115 ms
OK	Fabel Spamsources	spamsources.fabel.dk	80 ms
OK	GBUdb Truncate	truncate.gbudb.net	111 ms
OK	IMP Spam	spamrbl.imp.ch	30 ms
OK	IMP Worm	wormrbl.imp.ch	34 ms
OK	INPS	dnsbl.inps.de	42 ms
OK	InterServer	rbl.interserver.net	80 ms
OK	JustSpam	dnsbl.justspam.org	156 ms
OK	Lashback UBL	ubl.unsubscore.com	10 ms
OK	Mailspike	bl.mailspike.net	15 ms
OK	Manitu (NiX Spam)	ix.dnsbl.manitu.net	31 ms
OK	NordSpam	bl.nordspam.com	11 ms
OK	NSZones	bl.nszones.com	104 ms
OK	PSBL	psbl.surriel.com	82 ms
OK	S5H	all.s5h.net	9 ms
OK	SpamCop	bl.spamcop.net	9 ms
OK	Spamhaus ZEN	zen.spamhaus.org	9 ms
OK	SpamRATS Dyna Dynamic / generic rDNS	dyna.spamrats.com	154 ms
OK	SpamRATS NoPtr Missing reverse DNS	noptr.spamrats.com	160 ms
OK	SpamRATS Spam	spam.spamrats.com	141 ms
OK	SPFBL	dnsbl.spfbl.net	199 ms
OK	Suomispam	bl.suomispam.net	32 ms
OK	UCEPROTECT Level 1	dnsbl-1.uceprotect.net	18 ms
OK	UCEPROTECT Level 2 Lists whole IP ranges	dnsbl-2.uceprotect.net	116 ms
OK	UCEPROTECT Level 3 Lists whole networks (ASN)	dnsbl-3.uceprotect.net	112 ms
OK	Woody	blacklist.woody.ch	29 ms
OK	WPBL	db.wpbl.info	10 ms

52.101.60.191 Clean

A record of github-com.mail.protection.outlook.com · PTR: mail-bn0pr05cu00107.inbound.protection.outlook.com

Check this IP only

Status	Blacklist	Zone	Time
OK	Barracuda	b.barracudacentral.org	98 ms
OK	blocklist.de	bl.blocklist.de	10 ms
OK	DroneBL	dnsbl.dronebl.org	27 ms
OK	EFnet RBL	rbl.efnetrbl.org	117 ms
OK	Fabel Spamsources	spamsources.fabel.dk	80 ms
OK	GBUdb Truncate	truncate.gbudb.net	114 ms
OK	IMP Spam	spamrbl.imp.ch	29 ms
OK	IMP Worm	wormrbl.imp.ch	34 ms
OK	INPS	dnsbl.inps.de	42 ms
OK	InterServer	rbl.interserver.net	81 ms
OK	JustSpam	dnsbl.justspam.org	151 ms
OK	Lashback UBL	ubl.unsubscore.com	11 ms
OK	Mailspike	bl.mailspike.net	17 ms
OK	Manitu (NiX Spam)	ix.dnsbl.manitu.net	31 ms
OK	NordSpam	bl.nordspam.com	12 ms
OK	NSZones	bl.nszones.com	104 ms
OK	PSBL	psbl.surriel.com	85 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	158 ms
OK	SpamRATS NoPtr Missing reverse DNS	noptr.spamrats.com	148 ms
OK	SpamRATS Spam	spam.spamrats.com	139 ms
OK	SPFBL	dnsbl.spfbl.net	199 ms
OK	Suomispam	bl.suomispam.net	27 ms
OK	UCEPROTECT Level 1	dnsbl-1.uceprotect.net	22 ms
OK	UCEPROTECT Level 2 Lists whole IP ranges	dnsbl-2.uceprotect.net	124 ms
OK	UCEPROTECT Level 3 Lists whole networks (ASN)	dnsbl-3.uceprotect.net	113 ms
OK	Woody	blacklist.woody.ch	30 ms
OK	WPBL	db.wpbl.info	11 ms

52.101.194.4 Clean

A record of github-com.mail.protection.outlook.com · PTR: mail-ch4pr04cu00104.inbound.protection.outlook.com

Check this IP only

Status	Blacklist	Zone	Time
OK	Barracuda	b.barracudacentral.org	92 ms
OK	blocklist.de	bl.blocklist.de	11 ms
OK	DroneBL	dnsbl.dronebl.org	27 ms
OK	EFnet RBL	rbl.efnetrbl.org	117 ms
OK	Fabel Spamsources	spamsources.fabel.dk	76 ms
OK	GBUdb Truncate	truncate.gbudb.net	108 ms
OK	IMP Spam	spamrbl.imp.ch	31 ms
OK	IMP Worm	wormrbl.imp.ch	38 ms
OK	INPS	dnsbl.inps.de	45 ms
OK	InterServer	rbl.interserver.net	80 ms
OK	JustSpam	dnsbl.justspam.org	142 ms
OK	Lashback UBL	ubl.unsubscore.com	11 ms
OK	Mailspike	bl.mailspike.net	18 ms
OK	Manitu (NiX Spam)	ix.dnsbl.manitu.net	31 ms
OK	NordSpam	bl.nordspam.com	12 ms
OK	NSZones	bl.nszones.com	106 ms
OK	PSBL	psbl.surriel.com	85 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	156 ms
OK	SpamRATS NoPtr Missing reverse DNS	noptr.spamrats.com	151 ms
OK	SpamRATS Spam	spam.spamrats.com	140 ms
OK	SPFBL	dnsbl.spfbl.net	203 ms
OK	Suomispam	bl.suomispam.net	29 ms
OK	UCEPROTECT Level 1	dnsbl-1.uceprotect.net	24 ms
OK	UCEPROTECT Level 2 Lists whole IP ranges	dnsbl-2.uceprotect.net	114 ms
OK	UCEPROTECT Level 3 Lists whole networks (ASN)	dnsbl-3.uceprotect.net	126 ms
OK	Woody	blacklist.woody.ch	31 ms
OK	WPBL	db.wpbl.info	11 ms

outlook.com Clean

Domain blacklists (URI / domain reputation)

Status	Blacklist	Zone	Time
OK	NordSpam DBL	dbl.nordspam.com	13 ms
OK	Spamhaus DBL	dbl.spamhaus.org	33 ms
OK	SURBL	multi.surbl.org	23 ms
OK	URIBL	multi.uribl.com	285 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.